bubble/attiny24a_memory-led-game
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feat: added sleep mode

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This commit is contained in:
Sergey Yarkov 2022-05-26 15:57:56 +03:00
parent 079637a034
commit 18e6dc460d
3 changed files with 637 additions and 582 deletions
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54
firmware.asm
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@ -107,16 +107,17 @@ reti ; USI Overflow / inactive
; watchdog time-out interrupt handler
WDT_vect:
in temp_r_c, WDTCSR
ldi temp_r_c, (1<<WDIE)
out WDTCSR, temp_r_c
inc wdt_counter
in temp_r_c, WDTCSR
ori temp_r_c, (1<<WDIE)
out WDTCSR, temp_r_c
reti
; pin change on button interrupt handler
PCINT0_vect:
push r17
push r18
clr wdt_counter
in r18, MCUCR
cbr r18, (1<<SE)
; turn off the sleep mode
@ -164,8 +165,8 @@ MCU_Init:
rcall init_ports
rcall init_interrupts
rcall init_buzzer
rcall init_wdt
rcall init_sm
; rcall init_wdt
; init important registers for game
ldi delay_counter_r, 0xff
@ -190,7 +191,24 @@ MCU_Delay:
rcall delay_1s
clr temp_r_b
ret
WDT_off:
cli
wdr
; clear WDRF in MCUSR
ldi temp_r, (0<<WDRF)
out MCUSR, r16
; write logical one to WDCE and WDE
; keep old prescaler setting to prevent unintentional Watchdog Reset
in temp_r, WDTCSR
ori temp_r, (1<<WDCE)|(1<<WDE)
out WDTCSR, temp_r
; turn off WDT
ldi temp_r, (0<<WDE)
out WDTCSR, temp_r
sei
ret
; program start at reset vector
RESET_vect:
init_stack_p temp_r, RAMEND
@ -198,7 +216,20 @@ RESET_vect:
; main program loop
loop:
lds mcu_state_r, CURRENT_STATE_ADDRESS
ldi temp_r_c, 20
cp wdt_counter, temp_r_c
brsh _mcu_sleep
rjmp feed
_mcu_sleep:
clr wdt_counter
rcall WDT_off
in temp_r_c, MCUCR
sbr temp_r_c, (1<<SE)
out MCUCR, temp_r_c
cli
sleep
feed:
lds mcu_state_r, CURRENT_STATE_ADDRESS
; init state
init:
cpi mcu_state_r, INIT_STATE
@ -423,18 +454,13 @@ show_sequence:
beep_quit:
rcall delay
dec temp_r_b
cpi temp_r_b, 0
brne _sequence_loop
dec temp_r_b
cpi temp_r_b, 0
brne _sequence_loop
_seq_quit:
rcall dec_delay_counter
rcall delay_50ms
; in temp_r_c, MCUCR
; sbr temp_r_c, (1<<SE)
; out MCUCR, temp_r_c
; sleep
ret
; this function need to set the OCR0A register to 0xff for overflow interrupt

133
firmware.hex
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@ -1,67 +1,70 @@
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1032
firmware.lss
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