Re: [Sdcc-user] STM8 interrupt example ?

Травкин Роман Mon, 23 Jan 2017 23:18:07 -0800

You haven't enabled interrupts. Assembler command "rim" -- enables interrrupts, "sim" --disasbles.

add __asm__ ("rim") before while(1).

PD_DDR = 1<<3;
PD_CR1 = 1<<3;

__asm__ ("rim");

while(1){
}

You may also may look at adapted stm8s.h from SPL https://yadi.sk/d/Asn1BiuX3AbQsB

24.01.2017, 00:23, "aarrgghh.co.uk" <aarrg...@aarrgghh.co.uk>:

Thanks I've tried that but I'm still not having any luck.
This is my code.

#include <stdint.h>

#define CLK_DIVR    (*(volatile uint8_t *)0x50C6)

#define TIM1_CR1    (*(volatile uint8_t *)0x5250)
#define TIM1_IER    (*(volatile uint8_t *)0x5254)
#define TIM1_SR1    (*(volatile uint8_t *)0x5255)
#define TIM1_CNTRH    (*(volatile uint8_t *)0x525E)
#define TIM1_CNTRL    (*(volatile uint8_t *)0x525F)
#define TIM1_PSCRH    (*(volatile uint8_t *)0x5260)
#define TIM1_PSCRL    (*(volatile uint8_t *)0x5261)

#define PD_ODR    (*(volatile uint8_t *)0x500f)
#define PD_DDR    (*(volatile uint8_t *)0x5011)
#define PD_CR1    (*(volatile uint8_t *)0x5012)

void main(void)
{
    CLK_DIVR = 0x00; // Set the frequency to 16 MHz

    TIM1_PSCRH = 0x00; // Configure timer
    TIM1_PSCRL = 0x80;

    TIM1_CR1 = 0x01; //Enable timer
    TIM1_IER = 0x01; //Enable interrupt - update event

    PD_DDR = 1<<3;
    PD_CR1 = 1<<3;


    while(1){
    }
}

void TIM1_overflow_Handler() __interrupt(11)
{
    TIM1_SR1 &= ~1; //reset interrupt
    PD_ODR ^= 1 << 3; //toggle LED
}

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Re: [Sdcc-user] STM8 interrupt example ?

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