Add wait for DMA (should poll bit instead)

2024-07-26 22:58:31 -07:00
parent aa2e686b53
commit 383cb6d59e
1 changed files with 6 additions and 1 deletions
--- a/sw/test_code/sd_controller_test/main.s
+++ b/sw/test_code/sd_controller_test/main.s
@@ -169,6 +169,11 @@ _init:
                lda #18
                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.
                stz SD_DMA_BASE+$3
                stz SD_DMA_BASE+$2
@@ -182,7 +187,7 @@ _init:
                lda #$01
                sta SD_DMA_LEN

-                ; address 0
+                ; address 2
                stz sreg+1
                stz sreg
                ldx #$00