bslathi19/super6502
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Merge branch 'spi_master' into 'master'

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add spi controller and sd asm code.

See merge request bslathi19/super6502!17
This commit is contained in:
Byron Lathi
2023-07-29 22:32:21 +00:00
parent 6706cc502e 096472e084
commit 5128fe64b6
25 changed files with 1539 additions and 1643 deletions
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1
.gitignore vendored Normal file
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@@ -0,0 +1 @@
.vscode

5
.vscode/settings.json vendored
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@@ -1,5 +0,0 @@
{
"files.associations": {
"conio.h": "c"
}
}

4
hw/efinix_fpga/addr_decode.sv
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@@ -8,7 +8,7 @@ module addr_decode
output o_multiplier_cs, output o_multiplier_cs,
output o_divider_cs, output o_divider_cs,
output o_uart_cs, output o_uart_cs,
output o_sdcard_cs, output o_spi_cs,
output o_sdram_cs output o_sdram_cs
); );
@@ -17,7 +17,7 @@ assign o_timer_cs = i_addr >= 16'heff8 && i_addr <= 16'heffb;
assign o_multiplier_cs = i_addr >= 16'heff0 && i_addr <= 16'heff7; assign o_multiplier_cs = i_addr >= 16'heff0 && i_addr <= 16'heff7;
assign o_divider_cs = i_addr >= 16'hefe8 && i_addr <= 16'hefef; assign o_divider_cs = i_addr >= 16'hefe8 && i_addr <= 16'hefef;
assign o_uart_cs = i_addr >= 16'hefe6 && i_addr <= 16'hefe7; assign o_uart_cs = i_addr >= 16'hefe6 && i_addr <= 16'hefe7;
assign o_sdcard_cs = i_addr >= 16'hefd8 && i_addr <= 16'hefdf; assign o_spi_cs = i_addr >= 16'hefd8 && i_addr <= 16'hefdb;
assign o_leds_cs = i_addr == 16'hefff; assign o_leds_cs = i_addr == 16'hefff;
assign o_sdram_cs = i_addr < 16'h8000; assign o_sdram_cs = i_addr < 16'h8000;

1271
hw/efinix_fpga/debug_profile.wizard.json
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File diff suppressed because it is too large Load Diff

408
hw/efinix_fpga/init_hex.mem
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@@ -1,207 +1,147 @@
@00000000 @00000000
4C 00 00 8D 11 02 8E 12 02 8D 18 02 8E 19 02 88 8D 0E 02 8E 0F 02 8D 15 02 8E 16 02 88 B9 FF FF
B9 FF FF 8D 22 02 88 B9 FF FF 8D 21 02 8C 24 02 8D 1F 02 88 B9 FF FF 8D 1E 02 8C 21 02 20 FF FF
20 FF FF A0 FF D0 E8 60 00 00 02 FB 00 00 00 00 A0 FF D0 E8 60 A2 FF 9A D8 A9 F0 85 00 A9 7E 85
A2 FF 9A D8 A9 F0 85 00 A9 7E 85 01 20 7A FB 20 01 20 72 F8 20 F0 F6 20 45 F0 58 20 03 F1 6C FC
05 F8 20 50 F0 58 20 29 F1 6C FC FF 20 F9 F7 00 FF 20 E4 F6 00 A0 00 F0 07 A9 45 A2 F0 4C 00 02
A0 00 F0 07 A9 50 A2 F0 4C 03 02 60 AD FF EF A2 60 AD FF EF A2 00 60 8D FF EF 60 20 E9 F0 C9 0A
00 60 8D FF EF 60 20 0F F1 C9 0A D0 05 A9 0D 20 D0 05 A9 0D 20 E9 F0 60 DA 5A A8 B2 00 AA A9 1B
0F F1 60 DA 5A A8 B2 00 AA A9 1B 20 0F F1 A9 5B 20 E9 F0 A9 5B 20 E9 F0 98 20 E9 F0 A9 3B 20 E9
20 0F F1 98 20 0F F1 A9 3B 20 0F F1 8A 20 0F F1 F0 8A 20 E9 F0 A9 48 20 E9 F0 7A FA 60 DA A9 1B
A9 48 20 0F F1 7A FA 60 DA A9 1B 20 0F F1 A9 63 20 E9 F0 A9 63 20 E9 F0 68 60 40 DA BA 48 E8 E8
20 0F F1 68 60 40 DA BA 48 E8 E8 BD 00 01 29 10 BD 00 01 29 10 D0 06 68 FA 20 02 F1 40 4C AD F0
D0 06 68 FA 20 28 F1 40 4C B8 F0 48 20 6B F9 8D 48 A0 04 B1 00 09 40 20 D9 F0 88 B1 00 20 D9 F0
D8 EF 8E D9 EF A5 02 8D DA EF A5 03 8D DB EF 68 88 10 F8 68 09 01 20 D9 F0 20 AC F7 60 A9 01 8D
8D DC EF 60 5A 85 08 86 09 AD DC EF 29 01 F0 F9 DB EF 60 9C DB EF 60 A9 00 8D DA EF AD DB EF 30
AD D8 EF A0 00 91 08 AD D9 EF C8 91 08 AD DA EF FB AD D9 EF 60 8D E6 EF 60 48 8D E6 EF AD E7 EF
C8 91 08 AD DB EF C8 91 08 7A 60 AD DD EF A2 00 89 02 D0 F9 68 60 AD E6 EF A2 00 60 AD E7 EF A2
60 48 AD DC EF 29 02 F0 F9 68 60 8D E6 EF 60 48 00 60 60 20 70 F7 A2 00 86 02 86 03 A9 00 20 DD
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00 60 AD E7 EF A2 00 60 60 20 9D F8 20 98 F0 A9 20 F5 F7 D0 03 4C 32 F1 A9 95 A2 F8 20 27 F7 4C
C4 A2 FB 20 66 F8 A9 9D A2 FB 20 79 FA A0 02 20 39 F1 A9 AA A2 F8 20 27 F7 4C 3C F1 4C 3C F1 A0
32 F8 20 AA F1 A9 D6 A2 FB 20 79 FA A0 02 20 32 0C 20 D7 F6 60 20 7D F7 A9 00 20 25 F8 20 B7 F2
F8 20 F7 F2 A0 00 20 A7 FA A9 E6 A2 FB 20 79 FA 4C 7C F1 A0 00 A2 00 18 A9 01 71 00 91 00 A0 00
A0 03 20 21 F9 20 79 FA A0 04 20 32 F8 A0 01 20 A2 00 B1 00 C9 FF 20 FB F7 D0 03 4C 7C F1 A9 DB
21 F9 20 36 F3 A9 EF A2 FB 20 79 FA A0 02 20 32 A2 F8 20 27 F7 A2 00 A9 01 4C B3 F2 20 69 F4 A0
F8 4C 87 F1 4C 81 F1 4C 84 F1 A9 B2 A2 FB 20 79 01 91 00 C9 01 20 F5 F7 D0 C9 A2 00 A9 00 A0 06
FA AD FC FF AE FD FF 20 79 FA A0 04 20 32 F8 A2 20 69 F8 A0 07 20 C1 F7 E0 03 D0 02 C9 E8 20 14
00 A9 00 4C A6 F1 20 CC F8 60 20 B7 F8 A9 1B A2 F8 F0 03 4C A9 F1 4C B5 F1 A0 06 A2 00 A9 01 20
FC 20 66 F8 A2 00 86 02 86 03 A9 00 20 89 F9 A2 C7 F6 4C 93 F1 A9 01 20 C8 F7 20 C3 F4 A0 01 A2
00 A9 00 20 BB F0 A9 0F A2 FC 20 79 FA A0 02 20 00 B1 00 C9 01 20 F5 F7 D0 03 4C DB F1 A9 D1 A2
32 F8 A2 01 A9 00 85 02 A9 00 85 03 A9 AA 20 89 F8 20 27 F7 A2 00 A9 01 4C B3 F2 A0 05 A2 00 B1
F9 A2 00 A9 08 20 BB F0 A9 02 20 3B F9 20 D4 F0 00 C9 AA 20 F5 F7 D0 03 4C F2 F1 A2 00 A9 01 4C
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06 20 32 F8 A2 00 A9 00 A0 01 91 00 A0 01 A2 00 C9 FF 20 FB F7 D0 03 4C 18 F2 A9 C1 A2 F8 20 27
B1 00 C9 65 A9 00 A2 00 2A D0 03 4C 2D F2 A9 F6 F7 A2 00 A9 01 4C B3 F2 20 E5 F5 A0 01 91 00 A0
A2 FB 20 79 FA A0 02 20 32 F8 4C F3 F2 A2 00 86 01 A2 00 B1 00 C9 02 20 14 F8 D0 03 4C 36 F2 20
02 86 03 A9 00 20 89 F9 A2 00 A9 37 20 BB F0 A9 3F F6 A0 01 91 00 A2 00 A9 00 A0 06 20 69 F8 A0
02 20 3B F9 20 D4 F0 A2 00 A9 18 85 02 A9 40 85 07 20 C1 F7 E0 03 D0 02 C9 E8 20 14 F8 F0 03 4C
03 A9 00 20 89 F9 A2 00 A9 29 20 BB F0 A9 02 20 55 F2 4C 61 F2 A0 06 A2 00 A9 01 20 C7 F6 4C 3F
3B F9 20 D4 F0 A9 03 A2 FC 20 79 FA A0 07 20 2A F2 A0 00 A2 00 18 A9 01 71 00 91 00 A0 01 A2 00
F9 20 89 F9 A0 06 20 32 F8 A2 00 A9 00 A0 00 91 B1 00 C9 00 20 F5 F7 D0 81 A2 00 A9 00 A0 06 20
00 A0 00 A2 00 B1 00 C9 FF 20 55 FA F0 03 4C 94 69 F8 A0 07 20 C1 F7 E0 03 D0 02 C9 E8 20 14 F8
F2 4C A2 F2 A0 00 A2 00 18 A9 01 71 00 91 00 4C F0 03 4C 98 F2 4C A4 F2 A0 06 A2 00 A9 01 20 C7
81 F2 A0 01 A2 00 18 A9 01 71 00 91 00 A0 05 20 F6 4C 82 F2 A9 01 20 C8 F7 20 6B F5 A2 00 A9 00
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F0 03 4C 0C F2 A2 00 86 02 86 03 A9 00 20 89 F9 F0 A2 00 A9 00 A0 01 20 69 F8 A0 02 20 C1 F7 E0
A2 00 A9 02 20 BB F0 A9 02 20 3B F9 20 D4 F0 A9 03 D0 02 C9 E8 20 14 F8 F0 03 4C E0 F2 4C EC F2
27 A2 FC 20 79 FA A0 07 20 2A F9 20 89 F9 A0 06 A0 01 A2 00 A9 01 20 C7 F6 4C CA F2 A2 00 A9 FF
20 32 F8 20 DF F8 60 20 AA F8 A2 00 86 02 86 03 20 D9 F0 A2 00 A9 00 20 D3 F0 A2 00 A9 00 A0 00
A9 00 20 89 F9 A2 00 A9 03 20 BB F0 A2 00 86 02 91 00 A0 00 A2 00 B1 00 C9 50 20 14 F8 F0 03 4C
86 03 A9 00 A0 00 20 B2 FA A5 00 A6 01 20 D4 F0 15 F3 4C 2A F3 A2 00 A9 FF 20 D9 F0 A0 00 A2 00
A0 03 20 2A F9 A0 00 A6 03 A5 02 84 03 84 02 4C 18 A9 01 71 00 91 00 4C 02 F3 20 A7 F7 60 A9 00
32 F3 20 DA F8 60 20 79 FA 20 AA F8 A0 05 20 21 20 25 F8 20 40 F7 4C 59 F3 A0 01 A2 00 18 A9 01
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A9 07 20 BB F0 A5 00 A6 01 20 D4 F0 A0 01 20 21 2A D0 03 4C 59 F3 4C 6B F3 A2 00 A9 FF 20 D9 F0
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20 21 F9 20 F2 F7 86 03 85 02 A9 00 AA 20 89 F9 00 4C 74 F3 20 99 F7 60 20 3B F8 A0 01 20 C1 F7
A2 00 A9 0D 20 BB F0 A5 00 A6 01 20 D4 F0 A0 01 20 3B F8 20 2E F3 A0 00 20 51 F8 A0 01 20 C1 F7
20 21 F9 4C 96 F3 20 DF F8 60 20 79 FA 20 B7 F8 1A D0 01 E8 20 3B F8 A2 00 A9 FF 20 D9 F0 A0 00
A0 0B 20 2A F9 20 89 F9 A2 00 A9 11 20 BB F0 A9 20 51 F8 20 99 F7 60 20 3B F8 A0 01 20 C1 F7 20
02 20 3B F9 20 D4 F0 20 01 F1 A2 00 A9 00 A0 00 3B F8 20 2E F3 A0 00 20 51 F8 A0 01 20 C1 F7 A0
20 A7 FA A0 01 20 21 F9 C9 00 8A E9 02 50 02 49 00 20 B6 F7 C9 02 A9 00 A2 00 2A D0 03 4C D3 F3
80 0A A9 00 A2 00 2A F0 03 4C DF F3 4C 06 F4 A0 4C E6 F3 A0 01 20 C1 F7 1A D0 01 E8 20 3B F8 A2
07 20 21 F9 20 79 FA A0 03 20 21 F9 20 B3 F7 20 00 A9 04 20 2D F4 20 99 F7 60 20 3B F8 A0 01 20
79 FA 20 FB F0 A0 00 20 8F FA A0 00 A2 00 A9 01 C1 F7 20 3B F8 20 2E F3 A0 00 20 51 F8 A0 01 20
20 CF F7 4C C3 F3 A0 0C 20 DF F7 60 A0 00 B1 16 C1 F7 A0 00 20 B6 F7 C9 02 A9 00 A2 00 2A D0 03
E6 16 D0 02 E6 17 60 AD 3B 04 8D 36 04 20 B8 F4 4C 16 F4 4C 29 F4 A0 01 20 C1 F7 1A D0 01 E8 20
A9 36 A2 04 20 79 FA 20 70 FA 4C 00 02 A5 14 38 3B F8 A2 00 A9 04 20 2D F4 20 99 F7 60 20 25 F8
E9 02 85 14 B0 02 C6 15 60 AD 40 04 D0 11 20 56 4C 52 F4 A0 02 20 C1 F7 20 3B F8 A2 00 A9 FF 48
F4 4C F2 F7 AD 40 04 D0 06 20 56 F4 4C EC F7 20 A0 03 A2 00 A9 01 20 C7 F6 68 20 D9 F0 A0 00 20
56 F4 85 02 86 03 20 2D F4 A0 01 B1 14 AA 88 B1 51 F8 A0 00 B1 00 08 A0 00 A2 00 B1 00 38 E9 01
14 60 A0 00 84 08 84 09 B1 16 38 E9 30 90 2C C9 91 00 28 D0 CE 20 A7 F7 60 20 40 F7 A2 00 A9 FF
0A B0 28 20 10 F4 48 A5 08 A6 09 06 08 26 09 06 20 D9 F0 A2 00 A9 00 20 CD F0 A2 00 A9 FF 20 D9
08 26 09 65 08 85 08 8A 65 09 85 09 06 08 26 09 F0 A2 00 A9 00 20 25 F8 A2 00 86 02 86 03 A9 00
68 65 08 85 08 90 D1 E6 09 B0 CD A5 08 A6 09 60 20 DD F7 A2 00 A9 94 20 B0 F0 20 2E F3 A0 00 91
AC 42 04 EE 42 04 99 43 04 60 A9 43 A2 04 18 6D 00 A2 00 A9 FF 20 D9 F0 A2 00 A9 00 20 D3 F0 A2
42 04 90 01 E8 4C 79 FA A5 18 A6 19 4C 79 FA 20 00 A9 FF 20 D9 F0 A0 00 A2 00 B1 00 4C BF F4 20
17 F4 EE 3C 04 D0 F8 EE 3D 04 D0 F3 60 20 B8 F4 8A F7 60 20 3B F8 A2 00 A9 FF 20 D9 F0 A2 00 A9
AD 57 04 AE 58 04 20 79 FA AD 59 04 AE 5A 04 20 00 20 CD F0 A2 00 A9 FF 20 D9 F0 A2 00 A9 08 20
79 FA 4C 00 02 84 08 20 89 F9 20 AA F4 A5 08 4C 25 F8 A2 01 A9 00 85 02 A9 00 85 03 A9 AA 20 DD
B9 F9 84 08 20 89 F9 20 AA F4 A5 08 4C FA F9 48 F7 A2 00 A9 86 20 B0 F0 A0 01 20 C1 F7 20 EA F3
A0 05 B9 14 00 99 30 04 88 10 F7 68 85 14 86 15 A2 00 A9 FF 20 D9 F0 A2 00 A9 00 20 D3 F0 A2 00
20 C4 F8 85 16 86 17 20 C4 F8 85 18 86 19 A9 00 A9 FF 20 D9 F0 20 99 F7 60 20 3B F8 A2 00 A9 FF
A8 91 18 C8 91 18 C8 B1 18 8D 01 02 C8 B1 18 8D 20 D9 F0 A2 00 A9 00 20 CD F0 A2 00 A9 FF 20 D9
02 02 A5 16 85 08 A5 17 85 09 A0 00 B1 16 F0 0B F0 A2 00 A9 0D 20 25 F8 A2 00 86 02 86 03 A9 00
C9 25 F0 07 C8 D0 F5 E6 17 D0 F1 98 18 65 16 85 20 DD F7 A2 00 A9 00 20 B0 F0 A0 01 20 C1 F7 20
16 90 02 E6 17 38 E5 08 85 0A A5 17 E5 09 85 0B 78 F3 A2 00 A9 FF 20 D9 F0 A2 00 A9 00 20 D3 F0
05 0A F0 25 20 B7 F8 A0 05 A5 19 91 00 88 A5 18 A2 00 A9 FF 20 D9 F0 20 99 F7 60 20 3B F8 20 40
91 00 88 A5 09 91 00 88 A5 08 91 00 88 A5 0B 91 F7 A2 00 A9 FF 20 D9 F0 A2 00 A9 00 20 CD F0 A2
00 88 A5 0A 91 00 20 00 02 20 0C F4 AA D0 0B A2 00 A9 FF 20 D9 F0 A0 00 91 00 A0 00 A2 00 B1 00
05 BD 30 04 95 14 CA 10 F8 60 C9 25 D0 09 B1 16 C9 FF 20 F5 F7 D0 03 4C AB F5 4C 9D F5 A2 00 A9
C9 25 D0 09 20 10 F4 20 1A F4 4C 32 F5 A9 00 A2 FF 20 D9 F0 C9 FF 20 F5 F7 D0 F2 A2 00 A9 3A 20
0B 9D 37 04 CA 10 FA B1 16 C9 2D D0 05 8E 37 04 25 F8 A2 00 86 02 86 03 A9 00 20 DD F7 A2 00 A9
F0 19 C9 2B D0 05 8E 38 04 F0 10 C9 20 D0 05 8E 00 20 B0 F0 A0 02 20 C1 F7 20 A7 F3 A2 00 A9 FF
39 04 F0 07 C9 23 D0 09 8E 3A 04 20 10 F4 4C B7 20 D9 F0 A2 00 A9 00 20 D3 F0 A2 00 A9 FF 20 D9
F5 A2 20 C9 30 D0 06 AA 20 10 F4 B1 16 8E 3B 04 F0 20 A7 F7 60 20 40 F7 A2 00 A9 FF 20 D9 F0 A2
C9 2A D0 09 20 10 F4 20 56 F4 4C 00 F6 20 62 F4 00 A9 00 20 CD F0 A2 00 A9 FF 20 D9 F0 A2 00 A9
8D 3C 04 8E 3D 04 8C 3E 04 8C 3F 04 B1 16 C9 2E 37 20 25 F8 A2 00 86 02 86 03 A9 00 20 DD F7 A2
D0 1B 20 10 F4 B1 16 C9 2A D0 09 20 10 F4 20 56 00 A9 00 20 B0 F0 20 2E F3 A0 00 91 00 A2 00 A9
F4 4C 27 F6 20 62 F4 8D 3E 04 8E 3F 04 B1 16 C9 FF 20 D9 F0 A2 00 A9 00 20 D3 F0 A2 00 A9 FF 20
7A F0 19 C9 68 F0 15 C9 74 F0 11 C9 6A F0 08 C9 D9 F0 A0 00 A2 00 B1 00 4C 3B F6 20 8A F7 60 20
4C F0 04 C9 6C D0 0B A9 FF 8D 40 04 20 10 F4 4C 40 F7 A2 00 A9 FF 20 D9 F0 A2 00 A9 00 20 CD F0
2D F6 8C 42 04 A2 43 8E 57 04 A2 04 8E 58 04 20 A2 00 A9 FF 20 D9 F0 A2 00 A9 29 20 25 F8 A2 00
10 F4 C9 63 D0 0E 20 56 F4 8D 43 04 A9 00 8D 44 86 02 A9 40 85 03 A9 00 20 DD F7 A2 00 A9 00 20
04 4C 51 F7 C9 64 F0 04 C9 69 D0 2D A2 00 AD 39 B0 F0 20 2E F3 A0 00 91 00 A2 00 A9 FF 20 D9 F0
04 F0 02 A2 20 AD 38 04 F0 02 A2 2B 8E 41 04 20 A2 00 A9 00 20 D3 F0 A2 00 A9 FF 20 D9 F0 A0 00
44 F4 A4 03 30 0B AC 41 04 F0 06 8C 43 04 EE 42 A2 00 B1 00 4C 97 F6 20 8A F7 60 20 3B F8 20 70
04 A0 0A 20 E5 F4 4C 51 F7 C9 6E D0 15 20 56 F4 F7 A0 05 A2 00 B1 00 4C AA F6 A0 0E 20 D7 F6 60
85 08 86 09 A0 00 B1 18 91 08 C8 B1 18 91 08 4C 20 3B F8 20 70 F7 A0 03 A2 00 B1 00 4C BF F6 A0
32 F5 C9 6F D0 27 20 44 F4 AC 3A 04 F0 17 48 86 0E 20 D7 F6 60 A0 00 18 71 00 91 00 48 C8 8A 71
10 05 10 05 02 05 03 0D 3E 04 0D 3F 04 F0 06 A9 00 91 00 AA 68 60 C8 48 18 98 65 00 85 00 90 02
30 20 A0 F4 68 A0 08 20 E5 F4 4C 51 F7 C9 70 D0 E6 01 68 60 A0 00 F0 07 A9 45 A2 F0 4C 00 02 60
0D A2 00 8E 40 04 E8 8E 3A 04 A9 78 D0 27 C9 73 A9 00 85 08 A9 F0 85 09 A9 00 85 0A A9 02 85 0B
D0 0C 20 56 F4 8D 57 04 8E 58 04 4C 51 F7 C9 75 A2 DA A9 FF 85 10 A0 00 E8 F0 0D B1 08 91 0A C8
D0 0B 20 39 F4 A0 0A 20 F2 F4 4C 51 F7 C9 78 F0 D0 F6 E6 09 E6 0B D0 F0 E6 10 D0 EF 60 85 08 86
04 C9 58 D0 29 48 AD 3A 04 F0 0A A9 30 20 A0 F4 09 20 68 F0 4C 2B F7 85 08 86 09 A0 00 B1 08 F0
A9 58 20 A0 F4 20 39 F4 A0 10 20 F2 F4 68 C9 78 0E C8 84 10 20 5B F0 A4 10 D0 F2 E6 09 D0 EE 60
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F5 AD 57 04 AE 58 04 20 C5 FA 8D 59 04 8E 5A 04 90 01 60 C6 01 60 A5 00 38 E9 03 85 00 90 01 60
AD 3E 04 0D 3F 04 F0 15 AE 3E 04 EC 59 04 AD 3F C6 01 60 A5 00 38 E9 04 85 00 90 01 60 C6 01 60
04 A8 ED 5A 04 B0 06 8E 59 04 8C 5A 04 38 AD 3C A5 00 38 E9 06 85 00 90 01 60 C6 01 60 A5 00 38
04 ED 59 04 AA AD 3D 04 ED 5A 04 B0 03 A9 00 AA E9 07 85 00 90 01 60 C6 01 60 E6 00 D0 02 E6 01
49 FF 8D 3D 04 8A 49 FF 8D 3C 04 AD 37 04 D0 03 60 A0 01 B1 00 AA 88 B1 00 E6 00 F0 05 E6 00 F0
20 C2 F4 20 CD F4 AD 37 04 F0 03 20 C2 F4 4C 32 03 60 E6 00 E6 01 60 A0 03 4C D7 F6 A0 05 4C D7
F5 A2 00 18 A0 00 71 00 C8 85 10 8A 71 00 AA 18 F6 A0 08 4C D7 F6 85 08 86 09 A2 00 B1 08 60 A0
A5 00 69 02 85 00 90 02 E6 01 A5 10 60 A0 00 18 01 B1 00 AA 88 B1 00 60 A2 00 18 65 00 48 8A 65
71 00 91 00 48 C8 8A 71 00 91 00 AA 68 60 C8 48 01 AA 68 60 A9 00 AA A0 00 84 02 84 03 48 20 63
18 98 65 00 85 00 90 02 E6 01 68 60 A0 FF E0 80 F7 A0 03 A5 03 91 00 88 A5 02 91 00 88 8A 91 00
B0 02 A0 00 84 02 84 03 60 A0 00 F0 07 A9 50 A2 68 88 91 00 60 D0 06 A2 00 8A 60 D0 FA A2 00 A9
F0 4C 03 02 60 A9 00 85 08 A9 F0 85 09 A9 00 85 01 60 F0 F9 30 F7 A2 00 8A 60 F0 02 10 EF A2 00
0A A9 02 85 0B A2 CF A9 FF 85 10 A0 00 E8 F0 0D 8A 60 F0 E9 90 E7 A2 00 8A 60 F0 DB A2 00 8A 2A
B1 08 91 0A C8 D0 F6 E6 09 E6 0B D0 F0 E6 10 D0 60 A0 00 B1 00 A4 00 F0 07 C6 00 A0 00 91 00 60
EF 60 8C 5B 04 88 88 98 18 65 00 85 08 A6 01 90 C6 01 C6 00 91 00 60 A9 00 A2 00 48 A5 00 38 E9
01 E8 86 09 A0 01 B1 08 AA 88 B1 08 20 79 FA A5 02 85 00 B0 02 C6 01 A0 01 8A 91 00 68 88 91 00
08 A6 09 20 4A FB AC 5B 04 4C DF F7 85 08 86 09 60 48 84 10 A0 01 B1 00 85 09 88 B1 00 85 08 A4
20 73 F0 4C 6A F8 85 08 86 09 A0 00 B1 08 F0 0E 10 68 91 08 4C 99 F7 A0 00 91 00 C8 48 8A 91 00
C8 84 10 20 66 F0 A4 10 D0 F2 E6 09 D0 EE 60 E0 68 60 A9 25 85 08 A9 02 85 09 A9 00 A8 A2 02 F0
00 D0 15 4A AA BD 64 FC 90 05 4A 4A 4A 4A 18 29 0A 91 08 C8 D0 FB E6 09 CA D0 F6 C0 00 F0 05 91
0F AA BD 59 FC A2 00 60 38 A9 00 AA 60 A5 00 38 08 C8 D0 F7 60 45 72 72 6F 72 20 69 6E 69 74 20
E9 02 85 00 90 01 60 C6 01 60 A5 00 38 E9 04 85 53 44 20 43 41 52 44 0D 0A 00 53 44 20 43 61 72
00 90 01 60 C6 01 60 A5 00 38 E9 06 85 00 90 01 64 20 69 6E 69 74 0D 0A 00 53 74 61 72 74 0D 0A
60 C6 01 60 A0 01 B1 00 AA 88 B1 00 E6 00 F0 05 00 6F 70 5F 63 6F 6E 64 20 65 72 72 6F 72 0D 0A
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06 4C DF F7 85 08 86 09 A0 03 B1 00 38 E5 03 D0 4C 45 0D 0A 00 00 00 00 00 00 00 00 00 00 00 00
22 88 B1 00 C5 02 D0 0C 88 B1 00 C5 09 D0 05 88
B1 00 C5 08 08 20 DA F8 28 F0 04 B0 03 A9 FF 60
A9 01 60 50 04 49 FF 09 01 08 20 DA F8 28 60 A0
01 B1 00 AA 88 B1 00 60 A0 03 B1 00 85 03 88 B1
00 85 02 88 B1 00 AA 88 B1 00 60 A2 00 18 65 00
48 8A 65 01 AA 68 60 20 E4 F8 4C 36 FA 18 49 FF
69 01 48 8A 49 FF 69 00 AA A5 02 49 FF 69 00 85
02 A5 03 49 FF 69 00 85 03 68 60 A0 03 B1 00 85
03 88 B1 00 85 02 88 B1 00 AA 88 B1 00 4C DA F8
A9 00 AA A0 00 84 02 84 03 48 20 AA F8 A0 03 A5
03 91 00 88 A5 02 91 00 88 8A 91 00 68 88 91 00
60 85 10 20 C4 F8 85 0A 86 0B 85 0C 86 0D 20 62
FA 20 C4 F8 85 02 86 03 60 20 A1 F9 A6 03 A4 10
C0 0A D0 39 A5 02 05 09 05 08 D0 11 E0 80 D0 0D
A0 0B B9 4D FC 91 0A 88 10 F8 4C 31 FA 8A 10 1D
A9 2D A0 00 91 0A E6 0A D0 02 E6 0B A5 08 A6 09
20 4D F9 85 08 86 09 4C FD F9 20 A1 F9 A9 00 48
A0 20 A9 00 06 08 26 09 26 02 26 03 2A C5 10 90
04 E5 10 E6 08 88 D0 EC A8 B9 3D FC 48 A5 08 05
09 05 02 05 03 D0 D9 A0 00 68 91 0A F0 03 C8 D0
F8 A5 0C A6 0D 60 D0 06 A2 00 8A 60 D0 FA A2 00
A9 01 60 F0 F9 30 F7 A2 00 8A 60 F0 02 10 EF A2
00 8A 60 F0 E9 90 E7 A2 00 8A 60 F0 DB A2 00 8A
2A 60 A0 01 B1 00 85 09 88 B1 00 85 08 4C CC F8
A9 01 4C 77 FA A9 00 A2 00 48 A5 00 38 E9 02 85
00 B0 02 C6 01 A0 01 8A 91 00 68 88 91 00 60 48
84 10 A0 01 B1 00 85 09 88 B1 00 85 08 A4 10 68
91 08 4C CC F8 A0 00 91 00 C8 48 8A 91 00 68 60
A0 00 91 00 C8 48 8A 91 00 C8 A5 02 91 00 C8 A5
03 91 00 68 60 85 0A 86 0B A2 00 A0 00 B1 0A F0
08 C8 D0 F9 E6 0B E8 D0 F4 98 60 85 08 86 09 85
0A 86 0B A0 00 B1 08 F0 14 20 83 F8 29 02 F0 06
B1 08 69 20 91 08 C8 D0 EC E6 09 D0 E8 A5 0A A6
0B 60 20 C4 F8 85 0A 86 0B E8 8E 2F 02 AA E8 8E
2E 02 20 62 FA 20 C4 F8 85 0C 86 0D A0 00 84 10
B1 0C 18 65 0A 91 0C C8 B1 0C 65 0B 91 0C CE 2E
02 F0 11 A4 10 B1 08 C8 D0 02 E6 09 84 10 20 66
F0 4C 2E FB CE 2F 02 D0 EA 60 85 08 86 09 A9 00
8D 28 02 8D 29 02 A0 01 B1 00 AA 88 B1 00 20 79
FA A0 02 A9 28 91 00 C8 A9 02 91 00 A5 08 A6 09
20 FF F4 AD 28 02 AE 29 02 60 A9 30 85 08 A9 02
85 09 A9 00 A8 A2 02 F0 0A 91 08 C8 D0 FB E6 09
CA D0 F6 C0 2C F0 05 91 08 C8 D0 F7 60 41 6E 64
20 74 65 73 74 69 6E 67 20 63 70 72 69 6E 74 66
0A 00 52 65 73 65 74 20 76 65 63 74 6F 72 3A 20
25 78 0A 00 53 74 61 72 74 69 6E 67 20 73 64 5F
69 6E 69 74 0A 00 66 69 6E 69 73 68 20 73 64 5F
69 6E 69 74 0A 00 72 63 61 3A 20 25 78 0A 00 44
6F 6E 65 21 0A 00 53 44 20 54 69 6D 65 64 20 6F
75 74 00 43 4D 44 34 31 3A 20 25 6C 78 0A 00 53
65 6E 74 20 52 65 73 65 74 0A 00 49 6E 20 73 64
5F 69 6E 69 74 0A 00 43 4D 44 32 3A 20 25 6C 78
0A 00 43 4D 44 38 3A 20 25 6C 78 0A 00 30 31 32
33 34 35 36 37 38 39 41 42 43 44 45 46 2D 32 31
34 37 34 38 33 36 34 38 00 00 01 02 0C 09 0A 10
40 50 A0 D0 66 66 66 66 A6 88 88 66 66 66 66 66
66 66 66 66 09 00 00 00 00 00 00 00 33 33 33 33
33 00 00 00 50 55 55 25 22 22 22 22 22 22 22 22
22 02 00 00 40 44 44 14 11 11 11 11 11 11 11 11
11 01 00 70 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
@@ -254,4 +194,64 @@ CA D0 F6 C0 2C F0 05 91 08 C8 D0 F7 60 41 6E 64
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 A5 F0 30 F0 A6 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 9A F0 25 F0 9B F0

BIN
hw/efinix_fpga/ip/uart/ipm/component.pickle
View File

Binary file not shown.

BIN
hw/efinix_fpga/ip/uart/ipm/graph.pickle
View File

Binary file not shown.

23
hw/efinix_fpga/ip/uart/settings.json
View File

@@ -19,31 +19,16 @@
"ENABLE_PARITY": "1'b0", "ENABLE_PARITY": "1'b0",
"FIX_BAUDRATE": "1'b1", "FIX_BAUDRATE": "1'b1",
"PARITY_MODE": "1'b0", "PARITY_MODE": "1'b0",
"BOOTUP_CHECK": "1'b1" "BOOTUP_CHECK": "1'b0"
}, },
"output": { "output": {
"external_source_source": [ "external_source_source": [
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart_define.vh",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart_tmpl.v", "/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart_tmpl.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart.v", "/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart_tmpl.vhd" "/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart_tmpl.vhd",
], "/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/uart_define.vh"
"external_example_example": [
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/command_state.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/decoder.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/encoder.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/led_ctl.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/resets.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/uart_defines.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/uart_demo_top.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/user_register.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/uart_demo.peri.xml",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/uart_demo.xml",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/uart_timing_T20.sdc",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/uart.v",
"/home/byron/Projects/super6502/hw/efinix_fpga/ip/uart/T20F256_devkit/uart_define.vh"
] ]
}, },
"sw_version": "2023.1.150", "sw_version": "2023.1.150",
"generated_date": "2023-07-16T20:20:12.259229" "generated_date": "2023-07-23T03:23:04.338270"
} }

4
hw/efinix_fpga/ip/uart/uart.v
View File

@@ -43,7 +43,7 @@
// //
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
`define IP_UUID _d1961caf8b8d4ca092806671a99095c2 `define IP_UUID _8d7ceb45e0e64e208e634a02f6a59365
`define IP_NAME_CONCAT(a,b) a``b `define IP_NAME_CONCAT(a,b) a``b
`define IP_MODULE_NAME(name) `IP_NAME_CONCAT(name,`IP_UUID) `define IP_MODULE_NAME(name) `IP_NAME_CONCAT(name,`IP_UUID)
module uart ( module uart (
@@ -69,7 +69,7 @@ input [7:0] tx_data
.ENABLE_PARITY (1'b0), .ENABLE_PARITY (1'b0),
.FIX_BAUDRATE (1'b1), .FIX_BAUDRATE (1'b1),
.PARITY_MODE (1'b0), .PARITY_MODE (1'b0),
.BOOTUP_CHECK (1'b1) .BOOTUP_CHECK (1'b0)
) u_top_uart( ) u_top_uart(
.tx_o ( tx_o ), .tx_o ( tx_o ),
.rx_i ( rx_i ), .rx_i ( rx_i ),

2
hw/efinix_fpga/ip/uart/uart_define.vh
View File

@@ -49,4 +49,4 @@ localparam BAUD = 115200;
localparam ENABLE_PARITY = 1'b0; localparam ENABLE_PARITY = 1'b0;
localparam FIX_BAUDRATE = 1'b1; localparam FIX_BAUDRATE = 1'b1;
localparam PARITY_MODE = 1'b0; localparam PARITY_MODE = 1'b0;
localparam BOOTUP_CHECK = 1'b1; localparam BOOTUP_CHECK = 1'b0;

5
hw/efinix_fpga/simulation/Makefile
View File

@@ -1,4 +1,4 @@
TARGETS= timer interrupt_controller TARGETS= timer interrupt_controller spi_controller
TB=$(patsubst %, %_tb.sv, $(TARGETS)) TB=$(patsubst %, %_tb.sv, $(TARGETS))
all: $(TARGETS) all: $(TARGETS)
@@ -6,6 +6,9 @@ all: $(TARGETS)
timer: timer_tb.sv timer: timer_tb.sv
iverilog -g2005-sv -s sim -o $@ $@_tb.sv ../$@.sv iverilog -g2005-sv -s sim -o $@ $@_tb.sv ../$@.sv
spi_controller: spi_controller_tb.sv ../spi_controller.sv
iverilog -g2005-sv -s sim -o $@ $@_tb.sv ../$@.sv
interrupt_controller: interrupt_controller_tb.sv interrupt_controller: interrupt_controller_tb.sv
iverilog -g2005-sv -s sim -o $@ $@_tb.sv ../$@.sv iverilog -g2005-sv -s sim -o $@ $@_tb.sv ../$@.sv

102
hw/efinix_fpga/simulation/spi_controller_tb.sv Normal file
View File

@@ -0,0 +1,102 @@
module sim();
timeunit 10ns;
timeprecision 1ns;
logic clk_50;
logic i_clk;
logic i_rst;
logic i_cs;
logic i_rwb;
logic [1:0] i_addr;
logic [7:0] i_data;
logic [7:0] o_data;
logic o_spi_cs;
logic o_spi_clk;
logic o_spi_mosi;
logic i_spi_miso;
spi_controller dut(.*);
always #1 clk_50 = clk_50 === 1'b0;
always #100 i_clk = i_clk === 1'b0;
task write_reg(input logic [2:0] _addr, input logic [7:0] _data);
@(negedge i_clk);
i_cs <= '1;
i_addr <= _addr;
i_rwb <= '0;
i_data <= '1;
@(posedge i_clk);
i_data <= _data;
@(negedge i_clk);
i_cs <= '0;
i_rwb <= '1;
endtask
task read_reg(input logic [2:0] _addr, output logic [7:0] _data);
@(negedge i_clk);
i_cs <= '1;
i_addr <= _addr;
i_rwb <= '1;
i_data <= '1;
@(posedge i_clk);
_data <= o_data;
@(negedge i_clk);
i_cs <= '0;
i_rwb <= '1;
endtask
initial
begin
$dumpfile("spi_controller.vcd");
$dumpvars(0,sim);
end
logic [7:0] data;
initial begin
i_rst <= '1;
repeat(5) @(posedge i_clk);
i_cs <= '0;
i_rwb <= '1;
i_addr <= '0;
i_rst <= '0;
repeat(5) @(posedge i_clk);
write_reg(3, 1);
write_reg(2, 8'hFF);
data = (1 << 7);
while(data & (1 << 7)) begin
read_reg(3, data);
end
write_reg(3, 0);
read_reg(1, data);
assert(data == 8'h55);
repeat(50) @(posedge i_clk);
$finish();
end
logic [7:0] _spi_device_data;
initial begin
_spi_device_data <= 8'h55;
end
always @(edge o_spi_clk) begin
if (o_spi_cs == '0) begin
if (o_spi_clk == '1)
i_spi_miso <= _spi_device_data[7];
if (o_spi_clk == '0)
_spi_device_data <= _spi_device_data << 1;
end
end
endmodule

97
hw/efinix_fpga/spi_controller.sv Normal file
View File

@@ -0,0 +1,97 @@
module spi_controller(
input i_clk,
input i_rst,
input i_cs,
input i_rwb,
input [1:0] i_addr,
input [7:0] i_data,
output logic [7:0] o_data,
output o_spi_cs,
output o_spi_clk,
output o_spi_mosi,
input i_spi_miso
);
// We need a speed register
// an input data register
// and an output data register
// and then a control register for cs
logic [7:0] r_baud_rate;
logic [7:0] r_input_data;
logic [7:0] r_output_data;
logic [7:0] r_control;
logic [8:0] r_clock_counter;
logic active;
logic [2:0] count;
logic spi_clk;
logic r_spi_mosi;
assign o_spi_cs = ~r_control[0];
assign o_spi_clk = spi_clk;
assign o_spi_mosi = r_spi_mosi;
always @(negedge i_clk) begin
if (i_rst) begin
r_baud_rate <= 8'h1;
r_input_data <= '0;
r_output_data <= '0;
r_control <= '0;
r_clock_counter <= '0;
count <= '0;
spi_clk <= '0;
active <= '0;
end else begin
if (~i_rwb & i_cs) begin
unique case (i_addr)
0: r_baud_rate <= i_data;
1:;
2: begin
r_output_data <= i_data;
active <= '1;
end
3: r_control <= i_data;
endcase
end
if (active) begin
r_spi_mosi <= r_output_data[7];
r_clock_counter <= r_clock_counter + 9'b1;
if (r_clock_counter >= r_baud_rate) begin
r_clock_counter <= '0;
spi_clk <= ~spi_clk;
// rising edge
if (spi_clk == '0) begin
r_output_data <= r_output_data << 1;
count <= count + 1;
end
// falling edge
if (spi_clk == '1) begin
r_input_data <= {r_input_data[6:0], i_spi_miso};
if (count == '0) begin
active <= '0;
end
end
end
end
end
end
always_comb begin
unique case (i_addr)
0: o_data = r_baud_rate;
1: o_data = r_input_data;
2:;
3: o_data = {active, r_control[6:0]};
endcase
end
endmodule

22
hw/efinix_fpga/super6502.peri.xml
View File

@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<efxpt:design_db name="super6502" device_def="T20F256" location="/home/byron/Projects/super6502/hw/efinix_fpga" version="2023.1.150" db_version="20231999" last_change_date="Sun Jul 16 13:10:02 2023" xmlns:efxpt="http://www.efinixinc.com/peri_design_db" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.efinixinc.com/peri_design_db peri_design_db.xsd "> <efxpt:design_db name="super6502" device_def="T20F256" location="/home/byron/Projects/super6502/hw/efinix_fpga" version="2023.1.150" db_version="20231999" last_change_date="Sat Jul 22 17:30:06 2023" xmlns:efxpt="http://www.efinixinc.com/peri_design_db" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.efinixinc.com/peri_design_db peri_design_db.xsd ">
<efxpt:device_info> <efxpt:device_info>
<efxpt:iobank_info> <efxpt:iobank_info>
<efxpt:iobank name="1A" iostd="3.3 V LVTTL / LVCMOS"/> <efxpt:iobank name="1A" iostd="3.3 V LVTTL / LVCMOS"/>
@@ -306,21 +306,17 @@
<efxpt:gpio name="pll_in" gpio_def="GPIOR_157" mode="input" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS"> <efxpt:gpio name="pll_in" gpio_def="GPIOR_157" mode="input" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:input_config name="pll_in" name_ddio_lo="" conn_type="pll_clkin" is_register="false" clock_name="" is_clock_inverted="false" pull_option="none" is_schmitt_trigger="false" ddio_type="none"/> <efxpt:input_config name="pll_in" name_ddio_lo="" conn_type="pll_clkin" is_register="false" clock_name="" is_clock_inverted="false" pull_option="none" is_schmitt_trigger="false" ddio_type="none"/>
</efxpt:gpio> </efxpt:gpio>
<efxpt:gpio name="sd_clk" gpio_def="GPIOL_26" mode="output" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:output_config name="sd_clk" name_ddio_lo="" register_option="none" clock_name="" is_clock_inverted="false" is_slew_rate="false" tied_option="none" ddio_type="none" drive_strength="1"/>
</efxpt:gpio>
<efxpt:gpio name="sd_cmd" gpio_def="GPIOL_25" mode="inout" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:input_config name="sd_cmd_IN" name_ddio_lo="" conn_type="normal" is_register="false" clock_name="" is_clock_inverted="false" pull_option="weak pullup" is_schmitt_trigger="false" ddio_type="none"/>
<efxpt:output_config name="sd_cmd_OUT" name_ddio_lo="" register_option="none" clock_name="" is_clock_inverted="false" is_slew_rate="false" tied_option="none" ddio_type="none" drive_strength="3"/>
<efxpt:output_enable_config name="sd_cmd_OE" is_register="false" clock_name="" is_clock_inverted="false"/>
</efxpt:gpio>
<efxpt:gpio name="sd_cs" gpio_def="GPIOL_36" mode="output" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS"> <efxpt:gpio name="sd_cs" gpio_def="GPIOL_36" mode="output" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:output_config name="sd_cs" name_ddio_lo="" register_option="none" clock_name="" is_clock_inverted="false" is_slew_rate="false" tied_option="none" ddio_type="none" drive_strength="1"/> <efxpt:output_config name="sd_cs" name_ddio_lo="" register_option="none" clock_name="" is_clock_inverted="false" is_slew_rate="false" tied_option="none" ddio_type="none" drive_strength="1"/>
</efxpt:gpio> </efxpt:gpio>
<efxpt:gpio name="sd_data" gpio_def="GPIOL_29" mode="inout" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS"> <efxpt:gpio name="spi_clk" gpio_def="GPIOL_26" mode="output" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:input_config name="sd_data_IN" name_ddio_lo="" conn_type="normal" is_register="false" clock_name="" is_clock_inverted="false" pull_option="weak pullup" is_schmitt_trigger="false" ddio_type="none"/> <efxpt:output_config name="spi_clk" name_ddio_lo="" register_option="none" clock_name="" is_clock_inverted="false" is_slew_rate="false" tied_option="none" ddio_type="none" drive_strength="1"/>
<efxpt:output_config name="sd_data_OUT" name_ddio_lo="" register_option="none" clock_name="" is_clock_inverted="false" is_slew_rate="false" tied_option="none" ddio_type="none" drive_strength="3"/> </efxpt:gpio>
<efxpt:output_enable_config name="sd_data_OE" is_register="false" clock_name="" is_clock_inverted="false"/> <efxpt:gpio name="spi_miso" gpio_def="GPIOL_29" mode="input" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:input_config name="spi_miso" name_ddio_lo="" conn_type="normal" is_register="false" clock_name="" is_clock_inverted="false" pull_option="none" is_schmitt_trigger="false" ddio_type="none"/>
</efxpt:gpio>
<efxpt:gpio name="spi_mosi" gpio_def="GPIOL_25" mode="output" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:output_config name="spi_mosi" name_ddio_lo="" register_option="none" clock_name="" is_clock_inverted="false" is_slew_rate="false" tied_option="none" ddio_type="none" drive_strength="1"/>
</efxpt:gpio> </efxpt:gpio>
<efxpt:gpio name="uart_rx" gpio_def="GPIOL_11" mode="input" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS"> <efxpt:gpio name="uart_rx" gpio_def="GPIOL_11" mode="input" bus_name="" is_lvds_gpio="false" io_standard="3.3 V LVTTL / LVCMOS">
<efxpt:input_config name="uart_rx" name_ddio_lo="" conn_type="normal" is_register="false" clock_name="" is_clock_inverted="false" pull_option="none" is_schmitt_trigger="false" ddio_type="none"/> <efxpt:input_config name="uart_rx" name_ddio_lo="" conn_type="normal" is_register="false" clock_name="" is_clock_inverted="false" pull_option="none" is_schmitt_trigger="false" ddio_type="none"/>

69
hw/efinix_fpga/super6502.sv
View File

@@ -41,30 +41,12 @@ module super6502
output uart_tx, output uart_tx,
output sd_cs, output sd_cs,
output sd_clk, output spi_clk,
output spi_mosi,
input sd_cmd_IN,
output sd_cmd_OUT, input spi_miso
output sd_cmd_OE,
input sd_data_IN,
output sd_data_OUT,
output sd_data_OE
); );
assign sd_cs = '1;
logic o_sd_cmd, i_sd_cmd;
logic o_sd_data, i_sd_data;
assign i_sd_cmd = sd_cmd_IN;
assign sd_cmd_OUT = '0;
assign sd_cmd_OE = ~o_sd_cmd;
assign i_sd_data = sd_data_IN;
assign sd_data_OUT = '0;
assign sd_data_OE = ~o_sd_data;
assign pll_cpu_reset = '1; assign pll_cpu_reset = '1;
assign o_pll_reset = '1; assign o_pll_reset = '1;
@@ -97,7 +79,7 @@ logic w_timer_cs;
logic w_multiplier_cs; logic w_multiplier_cs;
logic w_divider_cs; logic w_divider_cs;
logic w_uart_cs; logic w_uart_cs;
logic w_sdcard_cs; logic w_spi_cs;
addr_decode u_addr_decode( addr_decode u_addr_decode(
.i_addr(cpu_addr), .i_addr(cpu_addr),
@@ -107,7 +89,7 @@ addr_decode u_addr_decode(
.o_multiplier_cs(w_multiplier_cs), .o_multiplier_cs(w_multiplier_cs),
.o_divider_cs(w_divider_cs), .o_divider_cs(w_divider_cs),
.o_uart_cs(w_uart_cs), .o_uart_cs(w_uart_cs),
.o_sdcard_cs(w_sdcard_cs), .o_spi_cs(w_spi_cs),
.o_sdram_cs(w_sdram_cs) .o_sdram_cs(w_sdram_cs)
); );
@@ -117,7 +99,7 @@ logic [7:0] w_timer_data_out;
logic [7:0] w_multiplier_data_out; logic [7:0] w_multiplier_data_out;
logic [7:0] w_divider_data_out; logic [7:0] w_divider_data_out;
logic [7:0] w_uart_data_out; logic [7:0] w_uart_data_out;
logic [7:0] w_sdcard_data_out; logic [7:0] w_spi_data_out;
logic [7:0] w_sdram_data_out; logic [7:0] w_sdram_data_out;
always_comb begin always_comb begin
@@ -133,8 +115,8 @@ always_comb begin
cpu_data_out = w_divider_data_out; cpu_data_out = w_divider_data_out;
else if (w_uart_cs) else if (w_uart_cs)
cpu_data_out = w_uart_data_out; cpu_data_out = w_uart_data_out;
else if (w_sdcard_cs) else if (w_spi_cs)
cpu_data_out = w_sdcard_data_out; cpu_data_out = w_spi_data_out;
else if (w_sdram_cs) else if (w_sdram_cs)
cpu_data_out = w_sdram_data_out; cpu_data_out = w_sdram_data_out;
else else
@@ -206,28 +188,19 @@ uart_wrapper u_uart(
.irqb(w_uart_irqb) .irqb(w_uart_irqb)
); );
logic sd_clk; spi_controller spi_controller(
always @(posedge clk_2) begin .i_clk(clk_2),
sd_clk <= ~sd_clk; .i_rst(~cpu_resb),
end .i_cs(w_spi_cs),
.i_rwb(cpu_rwb),
.i_addr(cpu_addr[1:0]),
.i_data(cpu_data_in),
.o_data(w_spi_data_out),
.o_spi_cs(sd_cs),
sd_controller sd_controller( .o_spi_clk(spi_clk),
.clk(clk_2), .o_spi_mosi(spi_mosi),
.sd_clk(sd_clk), .i_spi_miso(spi_miso)
.rst(rst),
.addr(cpu_addr[2:0]),
.data(cpu_data_in),
.cs(w_sdcard_cs),
.rw(cpu_rwb),
.i_sd_cmd(i_sd_cmd),
.o_sd_cmd(o_sd_cmd),
.i_sd_data(i_sd_data),
.o_sd_data(o_sd_data),
.data_out(w_sdcard_data_out)
); );

7
hw/efinix_fpga/super6502.xml
View File

@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<efx:project name="super6502" description="" last_change_date="Wed July 19 2023 21:04:26" location="/home/byron/Projects/super6502/hw/efinix_fpga" sw_version="2023.1.150" last_run_state="pass" last_run_tool="efx_pgm" last_run_flow="bitstream" config_result_in_sync="true" design_ood="sync" place_ood="sync" route_ood="sync" xmlns:efx="http://www.efinixinc.com/enf_proj" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.efinixinc.com/enf_proj enf_proj.xsd"> <efx:project name="super6502" description="" last_change_date="Sun July 23 2023 16:23:00" location="/home/byron/Projects/super6502/hw/efinix_fpga" sw_version="2023.1.150" last_run_state="pass" last_run_tool="efx_pgm" last_run_flow="bitstream" config_result_in_sync="true" design_ood="sync" place_ood="sync" route_ood="sync" xmlns:efx="http://www.efinixinc.com/enf_proj" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.efinixinc.com/enf_proj enf_proj.xsd">
<efx:device_info> <efx:device_info>
<efx:family name="Trion"/> <efx:family name="Trion"/>
<efx:device name="T20F256"/> <efx:device name="T20F256"/>
@@ -19,6 +19,7 @@
<efx:design_file name="sd_controller.sv" version="default" library="default"/> <efx:design_file name="sd_controller.sv" version="default" library="default"/>
<efx:design_file name="crc7.sv" version="default" library="default"/> <efx:design_file name="crc7.sv" version="default" library="default"/>
<efx:design_file name="rom.sv" version="default" library="default"/> <efx:design_file name="rom.sv" version="default" library="default"/>
<efx:design_file name="spi_controller.sv" version="default" library="default"/>
<efx:top_vhdl_arch name=""/> <efx:top_vhdl_arch name=""/>
</efx:design_info> </efx:design_info>
<efx:constraint_info> <efx:constraint_info>
@@ -62,11 +63,11 @@
<efx:param name="hdl-compile-unit" value="1" value_type="e_option"/> <efx:param name="hdl-compile-unit" value="1" value_type="e_option"/>
<efx:param name="create-onehot-fsms" value="0" value_type="e_option"/> <efx:param name="create-onehot-fsms" value="0" value_type="e_option"/>
<efx:param name="min-ce-fanout" value="0" value_type="e_integer"/> <efx:param name="min-ce-fanout" value="0" value_type="e_integer"/>
<efx:param name="mult-decomp-retime" value="0" value_type="e_option"/>
<efx:param name="optimize-zero-init-rom" value="1" value_type="e_option"/>
<efx:param name="include" value="ip/sdram_controller" value_type="e_string"/> <efx:param name="include" value="ip/sdram_controller" value_type="e_string"/>
<efx:param name="include" value="ip/divider" value_type="e_string"/> <efx:param name="include" value="ip/divider" value_type="e_string"/>
<efx:param name="include" value="ip/uart" value_type="e_string"/> <efx:param name="include" value="ip/uart" value_type="e_string"/>
<efx:param name="mult-decomp-retime" value="0" value_type="e_option"/>
<efx:param name="optimize-zero-init-rom" value="1" value_type="e_option"/>
</efx:synthesis> </efx:synthesis>
<efx:place_and_route tool_name="efx_pnr"> <efx:place_and_route tool_name="efx_pnr">
<efx:param name="work_dir" value="work_pnr" value_type="e_string"/> <efx:param name="work_dir" value="work_pnr" value_type="e_string"/>

9
sw/bootloader/devices/io.inc65
View File

@@ -6,7 +6,8 @@ UART_STATUS = UART + 1
LED = $efff LED = $efff
SW = LED SW = LED
SD_ARG = $efd8 SPI_BAUD = $efd8
SD_CMD = $efdc SPI_INPUT = $efd9
SD_DATA = $efdd SPI_OUTPUT = $efda
SPI_CTRL = $efdb
SPI_STATUS = SPI_CTRL

464
sw/bootloader/devices/sd_card.c
View File

@@ -1,89 +1,437 @@
#include <stdint.h>
#include <conio.h> #include <conio.h>
#include "devices/sd_card.h" #include "sd_card.h"
#include "sd_print.h"
#include "spi.h"
void sd_init() { /*******************************************************************************
uint32_t resp; Initialize SD card
uint8_t attempts, i; *******************************************************************************/
uint8_t SD_init()
{
uint16_t i;
cputs("In sd_init\n"); uint8_t res[5], cmdAttempts = 0;
sd_card_command(0, 0); SD_powerUpSeq();
cprintf("Sent Reset\n"); while((res[0] = SD_goIdleState()) != SD_IN_IDLE_STATE)
{
cmdAttempts++;
if(cmdAttempts == CMD0_MAX_ATTEMPTS)
{
cputs("Go IDLE\r\n");
return SD_ERROR;
}
}
sd_card_command(0x000001aa, 8); for (i = 0; i < 1000; i++);
sd_card_resp(&resp);
cprintf("CMD8: %lx\n", resp);
attempts = 0; SD_sendIfCond(res);
do { if(res[0] != SD_IN_IDLE_STATE)
if (attempts > 100) { {
cprintf("SD Timed out"); cputs("IF Cond\r\n");
return; return SD_ERROR;
} }
sd_card_command(0, 55);
sd_card_resp(&resp);
sd_card_command(0x40180000, 41);
sd_card_resp(&resp);
cprintf("CMD41: %lx\n", resp);
//10ms loop? if(res[4] != 0xAA)
for (i = 0; i < 255; i++); {
return SD_ERROR;
}
attempts++; cmdAttempts = 0;
} while (resp != 0); do
{
if(cmdAttempts == CMD55_MAX_ATTEMPTS)
{
cputs("op_cond error\r\n");
return SD_ERROR;
}
sd_card_command(0, 2); res[0] = SD_sendApp();
sd_card_resp(&resp); if(SD_R1_NO_ERROR(res[0]))
cprintf("CMD2: %lx\n", resp); {
res[0] = SD_sendOpCond();
}
for (i = 0; i < 1000; i++);
cmdAttempts++;
}
while(res[0] != SD_READY);
for (i = 0; i < 1000; i++);
SD_readOCR(res);
return SD_SUCCESS;
} }
uint16_t sd_get_rca() { /*
uint32_t resp; // Send a command with starting end ending clock pulses
uint8_t res1_cmd(uint8_t cmd, uint32_t arg, uint8_t crc)
{
uint8_t res1;
// assert chip select
spi_exchange(0xFF);
spi_select(0);
spi_exchange(0xFF);
sd_card_command(0, 3); // send CMD0
resp = 0; SD_command(cmd, arg, crc);
sd_card_resp(&resp);
//cprintf("CMD3: %lx\n", resp); // read response
res1 = SD_readRes1();
return resp >> 16; // deassert chip select
spi_exchange(0xFF);
spi_deselect(0);
spi_exchange(0xFF);
return res1;
}
*/
/*******************************************************************************
Run power up sequence
*******************************************************************************/
/*
void SD_powerUpSeq()
{
uint16_t i;
uint8_t j;
// make sure card is deselected
spi_deselect(0);
// give SD card time to power up
for (i = 0; i < 1000; i++);
// select SD card
spi_exchange(0xFF);
spi_deselect(0);
// send 80 clock cycles to synchronize
for(j = 0; j < SD_INIT_CYCLES; j++)
spi_exchange(0xFF);
}
*/
/*******************************************************************************
Send command to SD card
*******************************************************************************/
/*
void SD_command(uint8_t cmd, uint32_t arg, uint8_t crc)
{
// transmit command to sd card
spi_exchange(cmd|0x40);
// transmit argument
spi_exchange((uint8_t)(arg >> 24));
spi_exchange((uint8_t)(arg >> 16));
spi_exchange((uint8_t)(arg >> 8));
spi_exchange((uint8_t)(arg));
// transmit crc
spi_exchange(crc|0x01);
}
*/
/*******************************************************************************
Read R1 from SD card
*******************************************************************************/
/*
uint8_t SD_readRes1()
{
uint8_t i = 0, res1;
// keep polling until actual data received
while((res1 = spi_exchange(0xFF)) == 0xFF)
{
i++;
// if no data received for 8 bytes, break
if(i > 8) break;
}
return res1;
}
*/
/*******************************************************************************
Read R2 from SD card
*******************************************************************************/
/*
void SD_readRes2(uint8_t *res)
{
// read response 1 in R2
res[0] = SD_readRes1();
// read final byte of response
res[1] = spi_exchange(0xFF);
}
*/
/*******************************************************************************
Read R3 from SD card
*******************************************************************************/
/*
void SD_readRes3(uint8_t *res)
{
// read response 1 in R3
res[0] = SD_readRes1();
// if error reading R1, return
if(res[0] > 1) return;
// read remaining bytes
SD_readBytes(res + 1, R3_BYTES);
}
*/
/*******************************************************************************
Read R7 from SD card
*******************************************************************************/
/*
void SD_readRes7(uint8_t *res)
{
// read response 1 in R7
res[0] = SD_readRes1();
// if error reading R1, return
if(res[0] > 1) return;
// read remaining bytes
SD_readBytes(res + 1, R7_BYTES);
}
*/
/*******************************************************************************
Read specified number of bytes from SD card
*******************************************************************************/
/*
void SD_readBytes(uint8_t *res, uint8_t n)
{
while(n--) *res++ = spi_exchange(0xFF);
}
*/
/*******************************************************************************
Command Idle State (CMD0)
*******************************************************************************/
uint8_t SD_goIdleState()
{
return res1_cmd(CMD0, CMD0_ARG, CMD0_CRC);
} }
uint16_t sd_select_card(uint16_t rca) { /*******************************************************************************
uint32_t resp; Send Interface Conditions (CMD8)
*******************************************************************************/
void SD_sendIfCond(uint8_t *res)
{
// assert chip select
spi_exchange(0xFF);
spi_select(0);
spi_exchange(0xFF);
sd_card_command((uint32_t)rca << 16, 7); // send CMD8
sd_card_resp(&resp); SD_command(CMD8, CMD8_ARG, CMD8_CRC);
return (uint16_t) resp; // read response
SD_readRes7(res);
//SD_readBytes(res + 1, R7_BYTES);
// deassert chip select
spi_exchange(0xFF);
spi_deselect(0);
spi_exchange(0xFF);
} }
uint16_t sd_get_status(uint16_t rca) { /*******************************************************************************
uint32_t resp; Read Status
*******************************************************************************/
void SD_sendStatus(uint8_t *res)
{
// assert chip select
spi_exchange(0xFF);
spi_select(0);
spi_exchange(0xFF);
sd_card_command((uint32_t)rca << 16, 13); // send CMD13
sd_card_resp(&resp); SD_command(CMD13, CMD13_ARG, CMD13_CRC);
return (uint16_t) resp; // read response
SD_readRes2(res);
// deassert chip select
spi_exchange(0xFF);
spi_deselect(0);
spi_exchange(0xFF);
} }
void sd_readblock(uint32_t addr, void* buf) { /*******************************************************************************
uint32_t resp; Read single 512 byte block
int i; token = 0xFE - Successful read
token = 0x0X - Data error
token = 0xFF - timeout
*******************************************************************************/
uint8_t SD_readSingleBlock(uint32_t addr, uint8_t *buf, uint8_t *token)
{
uint8_t res1, read;
uint16_t readAttempts;
uint16_t i;
sd_card_command(addr, 17); // set token to none
sd_card_resp(&resp); *token = 0xFF;
//cprintf("CMD17: %lx\n", resp);
sd_card_wait_for_data(); // assert chip select
spi_exchange(0xFF);
spi_select(0);
spi_exchange(0xFF);
//cprintf("Read data: \n"); // send CMD17
for (i = 0; i < 512; i++){ SD_command(CMD17, addr, CMD17_CRC);
((uint8_t*)buf)[i] = sd_card_read_byte();
}
//cprintf("\n"); // read R1
res1 = SD_readRes1();
// if response received from card
if(res1 != 0xFF)
{
// wait for a response token (timeout = 100ms)
readAttempts = 0;
while(++readAttempts != SD_MAX_READ_ATTEMPTS)
if((read = spi_exchange(0xFF)) != 0xFF) break;
// if response token is 0xFE
if(read == SD_START_TOKEN)
{
// read 512 byte block
for(i = 0; i < SD_BLOCK_LEN; i++) *buf++ = spi_exchange(0xFF);
// read 16-bit CRC
spi_exchange(0xFF);
spi_exchange(0xFF);
}
// set token to card response
*token = read;
}
// deassert chip select
spi_exchange(0xFF);
spi_deselect(0);
spi_exchange(0xFF);
return res1;
}
#define SD_MAX_WRITE_ATTEMPTS 3907
/*******************************************************************************
Write single 512 byte block
token = 0x00 - busy timeout
token = 0x05 - data accepted
token = 0xFF - response timeout
*******************************************************************************/
uint8_t SD_writeSingleBlock(uint32_t addr, uint8_t *buf, uint8_t *token)
{
uint16_t readAttempts;
uint8_t res1, read;
uint16_t i;
/*
// set token to none
*token = 0xFF;
// assert chip select
spi_exchange(0xFF);
spi_select(0);
spi_exchange(0xFF);
// send CMD24
SD_command(CMD24, addr, CMD24_CRC);
// read response
res1 = SD_readRes1();
// if no error
if(res1 == SD_READY)
{
// send start token
spi_exchange(SD_START_TOKEN);
// write buffer to card
for(i = 0; i < SD_BLOCK_LEN; i++) spi_exchange(buf[i]);
// wait for a response (timeout = 250ms)
readAttempts = 0;
while(++readAttempts != SD_MAX_WRITE_ATTEMPTS)
if((read = spi_exchange(0xFF)) != 0xFF) { *token = 0xFF; break; }
// if data accepted
if((read & 0x1F) == 0x05)
{
// set token to data accepted
*token = 0x05;
// wait for write to finish (timeout = 250ms)
readAttempts = 0;
while(spi_exchange(0xFF) == 0x00)
if(++readAttempts == SD_MAX_WRITE_ATTEMPTS) { *token = 0x00; break; }
}
}
// deassert chip select
spi_exchange(0xFF);
spi_deselect(0);
spi_exchange(0xFF);
*/
return res1;
}
/*******************************************************************************
Reads OCR from SD Card
*******************************************************************************/
void SD_readOCR(uint8_t *res)
{
uint8_t tmp;
// assert chip select
spi_exchange(0xFF);
spi_select(0);
tmp = spi_exchange(0xFF);
if(tmp != 0xFF) while(spi_exchange(0xFF) != 0xFF) ;
// send CMD58
SD_command(CMD58, CMD58_ARG, CMD58_CRC);
// read response
SD_readRes3(res);
// deassert chip select
spi_exchange(0xFF);
spi_deselect(0);
spi_exchange(0xFF);
}
/*******************************************************************************
Send application command (CMD55)
*******************************************************************************/
uint8_t SD_sendApp()
{
return res1_cmd(CMD55, CMD55_ARG, CMD55_CRC);;
}
/*******************************************************************************
Send operating condition (ACMD41)
*******************************************************************************/
uint8_t SD_sendOpCond()
{
return res1_cmd(ACMD41, ACMD41_ARG, ACMD41_CRC);
} }

82
sw/bootloader/devices/sd_card.h
View File

@@ -3,16 +3,78 @@
#include <stdint.h> #include <stdint.h>
void sd_init(); // command definitions
uint16_t sd_get_rca(); #define CMD0 0
uint16_t sd_select_card(uint16_t rca); #define CMD0_ARG 0x00000000
uint16_t sd_get_status(uint16_t rca); #define CMD0_CRC 0x94
void sd_readblock(uint32_t addr, void* buf); #define CMD8 8
#define CMD8_ARG 0x0000001AA
#define CMD8_CRC 0x86
#define CMD9 9
#define CMD9_ARG 0x00000000
#define CMD9_CRC 0x00
#define CMD10 9
#define CMD10_ARG 0x00000000
#define CMD10_CRC 0x00
#define CMD13 13
#define CMD13_ARG 0x00000000
#define CMD13_CRC 0x00
#define CMD17 17
#define CMD17_CRC 0x00
#define CMD24 24
#define CMD24_CRC 0x00
#define CMD55 55
#define CMD55_ARG 0x00000000
#define CMD55_CRC 0x00
#define CMD58 58
#define CMD58_ARG 0x00000000
#define CMD58_CRC 0x00
#define ACMD41 41
#define ACMD41_ARG 0x40000000
#define ACMD41_CRC 0x00
void sd_card_command(uint32_t arg, uint8_t cmd); #define SD_IN_IDLE_STATE 0x01
#define SD_READY 0x00
#define SD_R1_NO_ERROR(X) X < 0x02
void sd_card_resp(uint32_t* resp); #define R3_BYTES 4
uint8_t sd_card_read_byte(); #define R7_BYTES 4
void sd_card_wait_for_data();
#endif #define CMD0_MAX_ATTEMPTS 255
#define CMD55_MAX_ATTEMPTS 255
#define SD_ERROR 1
#define SD_SUCCESS 0
#define SD_MAX_READ_ATTEMPTS 1563
#define SD_READ_START_TOKEN 0xFE
#define SD_INIT_CYCLES 80
#define SD_START_TOKEN 0xFE
#define SD_ERROR_TOKEN 0x00
#define SD_DATA_ACCEPTED 0x05
#define SD_DATA_REJECTED_CRC 0x0B
#define SD_DATA_REJECTED_WRITE 0x0D
#define SD_BLOCK_LEN 512
// SD functions
uint8_t SD_init();
void SD_powerUpSeq();
void SD_command(uint8_t cmd, uint32_t arg, uint8_t crc);
uint8_t SD_readRes1();
void SD_readRes2(uint8_t *res);
void SD_readRes3(uint8_t *res);
void SD_readRes7(uint8_t *res);
void SD_readBytes(uint8_t *res, uint8_t n);
uint8_t SD_goIdleState();
void SD_sendIfCond(uint8_t *res);
void SD_sendStatus(uint8_t *res);
void SD_readOCR(uint8_t *res);
uint8_t SD_sendApp();
uint8_t SD_sendOpCond();
uint8_t SD_readSingleBlock(uint32_t addr, uint8_t *buf, uint8_t *error);
uint8_t SD_writeSingleBlock(uint32_t addr, uint8_t *buf, uint8_t *res);
uint8_t res1_cmd(uint8_t cmd, uint32_t arg, uint8_t crc);
#endif

230
sw/bootloader/devices/sd_card_asm.s
View File

@@ -1,66 +1,190 @@
.include "io.inc65" .export _SD_command
.export _SD_readRes1
.export _SD_readRes2
.export _SD_readRes3
.export _SD_readRes7
.export _SD_readBytes
.export _SD_powerUpSeq
.export _res1_cmd
.importzp sp, sreg, ptr1 .importzp sp, ptr1
.export _sd_card_command
.export _sd_card_resp
.export _sd_card_read_byte
.export _sd_card_wait_for_data
.autoimport on .autoimport on
.code .MACPACK generic
; Send sd card command. ; void SD_command(uint8_t cmd, uint32_t arg, uint8_t crc)
; command is in A register, the args are on the stack
; I think the order is high byte first?
_sd_card_command:
pha
jsr popeax ; The plan: push crc to stack, load arg into tmp1 through 4
sta SD_ARG
stx SD_ARG+1
lda sreg
sta SD_ARG+2
lda sreg+1
sta SD_ARG+3
pla .proc _SD_command: near
sta SD_CMD
rts
; void sd_card_resp(uint32_t* resp); pha ; Push CRC to cpu stack
_sd_card_resp: ldy #$04
phy lda (sp),y ; Load CMD
sta ptr1 ; store pointer ora #$40 ; start bit
stx ptr1+1 jsr _spi_exchange
@1: lda SD_CMD ; wait for status flag
and #$01 dey
beq @1 arg_loop: ; send ARG
lda SD_ARG lda (sp),y
ldy #$0 jsr _spi_exchange
sta (ptr1),y dey
lda SD_ARG+1 bpl arg_loop
iny
sta (ptr1),y pla ; Pull CRC from stack
lda SD_ARG+2 ora #$01 ; stop bit
iny jsr _spi_exchange
sta (ptr1),y jsr incsp5 ; pop all off stack
lda SD_ARG+3
iny
sta (ptr1),y
ply
rts rts
_sd_card_read_byte: .endproc
lda SD_DATA
ldx #$00 ; uint8_t SD_readRes1 (void)
.proc _SD_readRes1: near
; Try to read/write up to 8 times, then return value
ldx #$08
tryread:
lda #$ff
jsr _spi_exchange
cmp #$ff
bne end
dex
bne tryread
end: ; x will be 0 here anyway
rts rts
_sd_card_wait_for_data: .endproc
pha
@1: lda SD_CMD ; wait for status flag ; void SD_readRes2(uint8_t *res)
and #$02
beq @1 .proc _SD_readRes2: near
sta ptr1 ; store res in ptr1
stx ptr1 + 1
jsr _SD_readRes1 ; get first response 1
sta (ptr1)
lda #$ff
jsr _spi_exchange ; get final byte of response
ldy #$01
sta (ptr1),y
jsr incsp2
rts
.endproc
; void SD_readBytes(uint8_t *res, uint8_t n)
.proc _SD_readBytes: near
tax
jsr popptr1 ; store res in ptr1
read:
lda #$ff ; read data first
jsr _spi_exchange
sta (ptr1)
inc ptr1 ; then increment res
bne @L1
inc ptr1 + 1
@L1: dex ; then decrement x
bne read ; and if x is zero we are done
rts
.endproc
; void SD_readRes7(uint8_t *res)
_SD_readRes7:
; void SD_readRes3(uint8_t *res)
.proc _SD_readRes3: near
sta ptr1 ; store res in ptr1
stx ptr1 + 1
jsr _SD_readRes1 ; read respopnse 1 in R3
cmp #$02 ; if error reading R1, return
bge @L1
inc ptr1 ; read remaining bytes
bne @L2
inc ptr1
@L2: lda ptr1 ; push low byte
ldx ptr1 + 1
jsr pushax
lda #$04 ; R3_BYTES
jsr _SD_readBytes
@L1: rts
.endproc
; uint8_t res1_cmd(uint8_t cmd, uint32_t arg, uint8_t crc)
.proc _res1_cmd: near
pha ; push crc to processor stack
lda #$ff
jsr _spi_exchange
lda #$00 ; this gets ignored anyway
jsr _spi_select
lda #$ff
jsr _spi_exchange
pla pla
rts jsr _SD_command ; rely on command to teardown stack
jsr _SD_readRes1
tay ; spi doesn't touch y
lda #$ff
jsr _spi_exchange
lda #$00 ; this gets ignored anyway
jsr _spi_deselect
lda #$ff
jsr _spi_exchange
tya
ldx #$00 ; Promote to integer
rts
.endproc
; void SD_powerUpSeq(void)
.proc _SD_powerUpSeq: near
lda #$00
jsr _spi_deselect
jsr _sd_delay
lda #$ff
jsr _spi_exchange
lda #$00
jsr _spi_deselect
ldx #$50 ; SD_INIT_CYCLES
@L1: lda #$ff
jsr _spi_exchange
dex
bne @L1
rts
.endproc
; 1ms delay approx. saves no registers
.proc _sd_delay: near
ldx #$01 ; delay loop: A*X*10 + 4
@L1: lda #$c8 ; 1ms at 2MHz
@L2: dec ; 2
bne @L2 ; 3
dex ; 2
bne @L1 ; 3
rts
.endproc

188
sw/bootloader/devices/sd_print.c Normal file
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@@ -0,0 +1,188 @@
#include <conio.h>
#include "sd_print.h"
#include "sd_card.h"
/*
void SD_printR1(uint8_t res)
{
if(res == 0xFF)
{ cputs("\tNo response\r\n"); return; }
if(res & 0x80)
{ cputs("\tError: MSB = 1\r\n"); return; }
if(res == 0)
{ cputs("\tCard Ready\r\n"); return; }
if(PARAM_ERROR(res))
cputs("\tParameter Error\r\n");
if(ADDR_ERROR(res))
cputs("\tAddress Error\r\n");
if(ERASE_SEQ_ERROR(res))
cputs("\tErase Sequence Error\r\n");
if(CRC_ERROR(res))
cputs("\tCRC Error\r\n");
if(ILLEGAL_CMD(res))
cputs("\tIllegal Command\r\n");
if(ERASE_RESET(res))
cputs("\tErase Reset Error\r\n");
if(IN_IDLE(res))
cputs("\tIn Idle State\r\n");
}
*/
/*
void SD_printR2(uint8_t *res)
{
SD_printR1(res[0]);
if(res[0] == 0xFF) return;
if(res[1] == 0x00)
cputs("\tNo R2 Error\r\n");
if(OUT_OF_RANGE(res[1]))
cputs("\tOut of Range\r\n");
if(ERASE_PARAM(res[1]))
cputs("\tErase Parameter\r\n");
if(WP_VIOLATION(res[1]))
cputs("\tWP Violation\r\n");
if(CARD_ECC_FAILED(res[1]))
cputs("\tECC Failed\r\n");
if(CC_ERROR(res[1]))
cputs("\tCC Error\r\n");
if(ERROR(res[1]))
cputs("\tError\r\n");
if(WP_ERASE_SKIP(res[1]))
cputs("\tWP Erase Skip\r\n");
if(CARD_LOCKED(res[1]))
cputs("\tCard Locked\r\n");
}
*/
/*
void SD_printR3(uint8_t *res)
{
SD_printR1(res[0]);
if(res[0] > 1) return;
cputs("\tCard Power Up Status: ");
if(POWER_UP_STATUS(res[1]))
{
cputs("READY\r\n");
cputs("\tCCS Status: ");
if(CCS_VAL(res[1])){ cputs("1\r\n"); }
else cputs("0\r\n");
}
else
{
cputs("BUSY\r\n");
}
cputs("\tVDD Window: ");
if(VDD_2728(res[3])) cputs("2.7-2.8, ");
if(VDD_2829(res[2])) cputs("2.8-2.9, ");
if(VDD_2930(res[2])) cputs("2.9-3.0, ");
if(VDD_3031(res[2])) cputs("3.0-3.1, ");
if(VDD_3132(res[2])) cputs("3.1-3.2, ");
if(VDD_3233(res[2])) cputs("3.2-3.3, ");
if(VDD_3334(res[2])) cputs("3.3-3.4, ");
if(VDD_3435(res[2])) cputs("3.4-3.5, ");
if(VDD_3536(res[2])) cputs("3.5-3.6");
cputs("\r\n");
}
*/
/*
void SD_printR7(uint8_t *res)
{
SD_printR1(res[0]);
if(res[0] > 1) return;
cputs("\tCommand Version: ");
cprintf("%x", CMD_VER(res[1]));
cputs("\r\n");
cputs("\tVoltage Accepted: ");
if(VOL_ACC(res[3]) == VOLTAGE_ACC_27_33) {
cputs("2.7-3.6V\r\n");
} else if(VOL_ACC(res[3]) == VOLTAGE_ACC_LOW) {
cputs("LOW VOLTAGE\r\n");
} else if(VOL_ACC(res[3]) == VOLTAGE_ACC_RES1) {
cputs("RESERVED\r\n");
} else if(VOL_ACC(res[3]) == VOLTAGE_ACC_RES2) {
cputs("RESERVED\r\n");
} else {
cputs("NOT DEFINED\r\n");
}
cputs("\tEcho: ");
cprintf("%x", res[4]);
cputs("\r\n");
}
*/
/*
void SD_printCSD(uint8_t *buf)
{
cputs("CSD:\r\n");
cputs("\tCSD Structure: ");
cprintf("%x", (buf[0] & 0b11000000) >> 6);
cputs("\r\n");
cputs("\tTAAC: ");
cprintf("%x", buf[1]);
cputs("\r\n");
cputs("\tNSAC: ");
cprintf("%x", buf[2]);
cputs("\r\n");
cputs("\tTRAN_SPEED: ");
cprintf("%x", buf[3]);
cputs("\r\n");
cputs("\tDevice Size: ");
cprintf("%x", buf[7] & 0b00111111);
cprintf("%x", buf[8]);
cprintf("%x", buf[9]);
cputs("\r\n");
}
*/
void SD_printBuf(uint8_t *buf)
{
uint8_t colCount = 0;
uint16_t i;
for(i = 0; i < SD_BLOCK_LEN; i++)
{
cprintf("%2x", *buf++);
if(colCount == 19)
{
cputs("\r\n");
colCount = 0;
}
else
{
cputc(' ');
colCount++;
}
}
cputs("\r\n");
}
/*
void SD_printDataErrToken(uint8_t token)
{
if(token & 0xF0)
cputs("\tNot Error token\r\n");
if(SD_TOKEN_OOR(token))
cputs("\tData out of range\r\n");
if(SD_TOKEN_CECC(token))
cputs("\tCard ECC failed\r\n");
if(SD_TOKEN_CC(token))
cputs("\tCC Error\r\n");
if(SD_TOKEN_ERROR(token))
cputs("\tError\r\n");
}
*/

61
sw/bootloader/devices/sd_print.h Normal file
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@@ -0,0 +1,61 @@
#ifndef SD_PRINT_H
#define SD_PRINT_H
#include <stdint.h>
/* R1 MACROS */
#define PARAM_ERROR(X) X & 0b01000000
#define ADDR_ERROR(X) X & 0b00100000
#define ERASE_SEQ_ERROR(X) X & 0b00010000
#define CRC_ERROR(X) X & 0b00001000
#define ILLEGAL_CMD(X) X & 0b00000100
#define ERASE_RESET(X) X & 0b00000010
#define IN_IDLE(X) X & 0b00000001
/* R2 MACROS */
#define OUT_OF_RANGE(X) X & 0b10000000
#define ERASE_PARAM(X) X & 0b01000000
#define WP_VIOLATION(X) X & 0b00100000
#define CARD_ECC_FAILED(X) X & 0b00010000
#define CC_ERROR(X) X & 0b00001000
#define ERROR(X) X & 0b00000100
#define WP_ERASE_SKIP(X) X & 0b00000010
#define CARD_LOCKED(X) X & 0b00000001
/* R3 MACROS */
#define POWER_UP_STATUS(X) X & 0x40
#define CCS_VAL(X) X & 0x40
#define VDD_2728(X) X & 0b10000000
#define VDD_2829(X) X & 0b00000001
#define VDD_2930(X) X & 0b00000010
#define VDD_3031(X) X & 0b00000100
#define VDD_3132(X) X & 0b00001000
#define VDD_3233(X) X & 0b00010000
#define VDD_3334(X) X & 0b00100000
#define VDD_3435(X) X & 0b01000000
#define VDD_3536(X) X & 0b10000000
/* R7 MACROS */
#define CMD_VER(X) ((X >> 4) & 0xF0)
#define VOL_ACC(X) (X & 0x1F)
#define VOLTAGE_ACC_27_33 0b00000001
#define VOLTAGE_ACC_LOW 0b00000010
#define VOLTAGE_ACC_RES1 0b00000100
#define VOLTAGE_ACC_RES2 0b00001000
/* DATA ERROR TOKEN */
#define SD_TOKEN_OOR(X) X & 0b00001000
#define SD_TOKEN_CECC(X) X & 0b00000100
#define SD_TOKEN_CC(X) X & 0b00000010
#define SD_TOKEN_ERROR(X) X & 0b00000001
void SD_printR1(uint8_t res);
void SD_printR2(uint8_t *res);
void SD_printR3(uint8_t *res);
void SD_printR7(uint8_t *res);
void SD_printBuf(uint8_t *buf);
void SD_printDataErrToken(uint8_t token);
#endif

12
sw/bootloader/devices/spi.h Normal file
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@@ -0,0 +1,12 @@
#ifndef _SPI_H
#define _SPI_H
#include <stdint.h>
void spi_select(uint8_t id);
void spi_deselect(uint8_t id);
uint8_t spi_read();
void spi_write(uint8_t data);
uint8_t spi_exchange(uint8_t data);
#endif

39
sw/bootloader/devices/spi.s Normal file
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@@ -0,0 +1,39 @@
.include "io.inc65"
.importzp zp, sreg
.export _spi_select, _spi_deselect
.export _spi_read, _spi_write, _spi_exchange
.autoimport on
.code
; void spi_select(uint8_t id)
; Select a (the) slave by pulling its CS line down
; TODO allow active high or active low CS
; TODO allow more than one slave
_spi_select:
lda #$1 ; Ignore whatever id is, 1 is the only option
sta SPI_CTRL
rts
; void spi_deslect(uint8_t id)
; Deslect a slave by pulling its CS line up
; TODO allow active high or active low CS
_spi_deselect:
stz SPI_CTRL
rts
; uint8_t spi_read()
_spi_read:
lda #$0
; void spi_write(uint8_t data)
_spi_write:
; uint8_t spi_exchange(uint8_t data)
_spi_exchange:
sta SPI_OUTPUT
@1: lda SPI_CTRL
bmi @1
lda SPI_INPUT
rts

77
sw/bootloader/main.c
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@@ -6,6 +6,7 @@
#include "devices/board_io.h" #include "devices/board_io.h"
#include "devices/uart.h" #include "devices/uart.h"
#include "devices/sd_card.h" #include "devices/sd_card.h"
#include "devices/sd_print.h"
#include "filesystem/fat.h" #include "filesystem/fat.h"
#define KERNEL_LOAD_ADDR 0xD000 #define KERNEL_LOAD_ADDR 0xD000
@@ -13,40 +14,68 @@
uint8_t buf[512]; uint8_t buf[512];
int main() { int main() {
uint16_t rca; // array to hold responses
clrscr(); uint8_t res[5], token;
cputs("Starting sd_init\n"); uint32_t addr = 0x00000000;
cprintf("And testing cprintf\n"); uint16_t i;
sd_init(); cputs("Start\r\n");
cprintf("finish sd_init\n"); // initialize sd card
if(SD_init() != SD_SUCCESS)
{
cputs("Error\r\n");
}
else
{
cputs("Success\r\n");
rca = sd_get_rca(); // read sector 0
cprintf("rca: %x\n", rca); cputs("\r\nReading sector: 0x");
// ((uint8_t)(addr >> 24));
// cprintf("%x", (uint8_t)(addr >> 16));
// cprintf("%x", (uint8_t)(addr >> 8));
// cprintf("%x", (uint8_t)addr);
res[0] = SD_readSingleBlock(addr, buf, &token);
cputs("\r\nResponse:\r\n");
//SD_printR1(res[0]);
sd_select_card(rca); // if no error, print buffer
if((res[0] == 0x00) && (token == SD_START_TOKEN))
SD_printBuf(buf);
//else if error token received, print
else if(!(token & 0xF0))
{
cputs("Error token:\r\n");
//SD_printDataErrToken(token);
}
/* // update address to 0x00000100
fat_init(); // addr = 0x00000100;
filename = (char*)malloc(FAT_MAX_FILE_NAME); // // fill buffer with 0x55
// for(i = 0; i < 512; i++) buf[i] = 0x55;
cluster = fat_parse_path_to_cluster("/kernel.bin"); // cputs("Writing 0x55 to sector: 0x");
for (kernel_load = (uint8_t*)KERNEL_LOAD_ADDR; cluster < FAT_CLUSTERMASK; kernel_load+=(8*512)) { // cprintf("%x", (uint8_t)(addr >> 24));
cprintf("cluster: %lx\n", cluster); // cprintf("%x", (uint8_t)(addr >> 16));
cprintf("Writing to %p\n", kernel_load); // cprintf("%x", (uint8_t)(addr >> 8));
fat_read_cluster(cluster, kernel_load); // cprintf("%x", (uint8_t)addr);
cluster = fat_get_chain_value(cluster);
}
*/ // // write data to sector
// res[0] = SD_writeSingleBlock(addr, buf, &token);
cprintf("Done!\n"); // cputs("\r\nResponse:\r\n");
// //SD_printR1(res[0]);
for(;;); // // if no errors writing
// if(res[0] == 0x00)
// {
// if(token == SD_DATA_ACCEPTED)
// cputs("Write successful\r\n");
// }
}
cprintf("Reset vector: %x\n", *((uint16_t*)0xfffc)); while(1) ;
return 0;
} }