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Connect Button 1 to cpu_irqb

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A maskable interrupt can be generated by pressing button 1, the reset
button remains button 0.
This commit is contained in:
Byron Lathi
2022-03-14 11:53:45 -05:00
parent 5560b06c9f
commit ff78fd0179
2 changed files with 4 additions and 3 deletions
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4
hw/fpga/super6502.qsf
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@@ -101,7 +101,6 @@ set_location_assignment PIN_A13 -to SW[6]
set_location_assignment PIN_A14 -to SW[7]
set_location_assignment PIN_B14 -to SW[8]
set_location_assignment PIN_F15 -to SW[9]
set_location_assignment PIN_A7 -to Run
set_location_assignment PIN_A8 -to LED[0]
set_location_assignment PIN_A9 -to LED[1]
set_location_assignment PIN_A10 -to LED[2]
@@ -272,7 +271,6 @@ set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to SW[6]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to SW[7]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to SW[8]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to SW[9]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to Run
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to LED[0]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to LED[1]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to LED[2]
@@ -283,4 +281,6 @@ set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to LED[6]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to LED[7]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to LED[8]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to LED[9]
set_location_assignment PIN_A7 -to button_1
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to button_1
set_instance_assignment -name PARTITION_HIERARCHY root_partition -to | -section_id Top

3
hw/fpga/super6502.sv
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@@ -2,6 +2,7 @@
module super6502(
input clk_50,
input logic rst_n,
input logic button_1,
input logic [15:0] cpu_addr,
inout logic [7:0] cpu_data,
@@ -61,7 +62,7 @@ assign cpu_sob = '0;
assign cpu_resb = rst_n;
assign cpu_be = '1;
assign cpu_nmib = '1;
assign cpu_irqb = '1;
assign cpu_irqb = button_1;
addr_decode decode(
.addr(cpu_addr),