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The Cricket!: Fix SSC reset for Laser 128EX 

The change in b182a53d made resetting/detecting The Cricket! fail on
my Laser 128EX, likely due to startup config of the SSC not being
the same as on an Apple //c. This should be a superset of the change,
but compat testing will be needed.
This commit is contained in:
Joshua Bell 2023-10-14 19:40:09 -07:00
parent ed2fa6e7d2
commit 18a73004c4
1 changed files with 6 additions and 9 deletions
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15
clocks/cricket/cricket.system.s
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@ -83,17 +83,8 @@ init_ssc:
sta saved_control
;; Reset the Cricket (stops any playing notes & ensures Cricket is listening)
jsr restore_cmd_ctl ; have to change registers for this to work
jsr reset_cricket
jsr restore_cmd_ctl
jsr reset_cricket ; does it twice in original Cricket driver
jsr restore_cmd_ctl
;; Configure SSC
lda #%00001011 ; no parity/echo/interrupts, RTS low, DTR low
sta COMMAND
lda #%10011110 ; 9600 baud, 8 data bits, 2 stop bits
sta CONTROL
;; Read Cricket ID code: 00 ($00)
lda #0
@ -144,6 +135,12 @@ not_found:
rts
reset_cricket:
;; Reset SSC
lda #0
sta COMMAND ; hardware reset all Port 2 ACIA registers
sta CONTROL
;; Configure SSC
lda #%00001011 ; no parity/echo/interrupts, RTS low, DTR low
sta COMMAND
lda #%10011110 ; 9600 baud, 8 data bits, 2 stop bits