微處理器 - STMicroelectronics STM8S103 - Assembly - Timer2


參考資訊：
https://programmer.group/stm8s-timer-basic-interrupt-timing.html

暫存器




main.s

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    .equ PB_ODR,     0x5005
    .equ PB_IDR,     0x5006
    .equ PB_DDR,     0x5007
    .equ PB_CR1,     0x5008
    .equ PB_CR2,     0x5009
    .equ TIM2_CR1,   0x5300
    .equ TIM2_IER,   0x5303
    .equ TIM2_SR1,   0x5304
    .equ TIM2_PSCR,  0x530e
    .equ TIM2_ARRH,  0x530f
    .equ TIM2_ARRL,  0x5310
    .equ TIM2_CNTRH, 0x530c
    .equ TIM2_CNTRL, 0x530d
 
    .area data
    .area sseg
    .area home
    int main
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int 0
    int timer2_handler
 
    .area cseg
main:
    mov PB_DDR, #0x20
    mov PB_CR1, #0x20
    mov TIM2_PSCR, #0x00
    mov TIM2_ARRH, #0xff
    mov TIM2_ARRL, #0xff
    mov TIM2_CNTRH, #0x00
    mov TIM2_CNTRL, #0x00
    mov TIM2_IER, #0x01
    mov TIM2_SR1, #0x01
    mov TIM2_CR1, #0x81
    rim
loop:
    jp loop
 
timer2_handler:
    mov TIM2_SR1, #0
    bcpl PB_ODR, #5
    iret

完成