bslathi19/super6502
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add wait for DMA (should poll bit instead)

Browse Source
This commit is contained in:
Byron Lathi
2024-07-26 22:58:31 -07:00
parent aa2e686b53
commit 383cb6d59e
1 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
sw/test_code/sd_controller_test/main.s
View File

@@ -169,6 +169,11 @@ _init:
lda #18 lda #18
jsr send_dma jsr send_dma
; dumb sleep to wait for DMA to be done.
lda #$3a
@sleep: dec
bne @sleep
; Try reading again just to make sure it works. ; Try reading again just to make sure it works.
stz SD_DMA_BASE+$3 stz SD_DMA_BASE+$3
stz SD_DMA_BASE+$2 stz SD_DMA_BASE+$2
@@ -182,7 +187,7 @@ _init:
lda #$01 lda #$01
sta SD_DMA_LEN sta SD_DMA_LEN
; address 0 ; address 2
stz sreg+1 stz sreg+1
stz sreg stz sreg
ldx #$00 ldx #$00