From 383cb6d59efa5b21e0752364381005bcce0fda67 Mon Sep 17 00:00:00 2001 From: Byron Lathi Date: Fri, 26 Jul 2024 22:58:31 -0700 Subject: [PATCH] Add wait for DMA (should poll bit instead) --- sw/test_code/sd_controller_test/main.s | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sw/test_code/sd_controller_test/main.s b/sw/test_code/sd_controller_test/main.s index 480057a..bcc1ab6 100644 --- 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