Re: [Sdcc-user] STM8 interrupt example ?

aarrgghh.co.uk Tue, 24 Jan 2017 02:54:07 -0800

Thanks

It works now. I kind of wondered if I'd have missed something glaringlyobvious, or not very well documented if you don't know exactly what youare looking for.


Thanks also for the link to the stm8s.h file.

Regards
Russ.

On 24/01/17 07:13, Травкин Роман wrote:

You haven't enabled interrupts. Assembler command "rim" -- enablesinterrrupts, "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 SPLhttps://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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