Add rtc code test

2023-11-19 11:58:37 -08:00
parent 77629b16ce
commit 7002aeebe6
9 changed files with 210 additions and 5 deletions
--- a/sw/test_code/rtc_test/main.s
+++ b/sw/test_code/rtc_test/main.s
@@ -0,0 +1,57 @@
+.MACPACK generic
+
+.export _init, _nmi_int, _irq_int
+
+IRQ_CMD = $effc
+IRQ_DAT = $effd
+
+RTC_CMD = $effe
+RTC_DAT = $efff
+
+.zeropage
+finish: .res 1
+
+.code
+
+_nmi_int:
+_irq_int:
+    lda #$6d
+    sta finish
+
+_init:
+    ldx #$ff
+    txs
+
+    ; Enable irq0
+    lda #$20
+    sta IRQ_CMD
+    lda #$01
+    sta IRQ_DAT
+    ; edge type
+    lda #$40
+    sta IRQ_CMD
+    lda #$00
+    sta IRQ_DAT
+
+    ; Set increment
+    lda #$10
+    sta RTC_CMD
+    lda #$01
+    sta RTC_DAT
+
+    ; Set Threshold
+    lda #$00
+    sta RTC_CMD
+    lda #$07
+    sta RTC_DAT
+
+    ; Set IRQ Threshold
+    lda #$20
+    sta RTC_CMD
+    lda #$02
+    sta RTC_DAT
+
+    cli
+
+wait:
+    bra wait