Posted on August 30, 2010 at 14:38Hello! I have STM8S-Discovery, STVD+Cosmic_32K. I write:
#include ''stm8s.h''
main()
{
GPIO_DeInit(GPIOD);
GPIO_Init(GPIOD, GPIO_PIN_0, GPIO_MODE_OUT_PP_LOW_FAST);
TIM3_DeInit();
TIM3_TimeBaseInit(TIM3_PRESCALER_2, 999);
TIM3_Cmd(ENABLE);
for(;;)
{
if (TIM3_GetCounter() < 500) {
GPIO_WriteLow(GPIOD, GPIO_PIN_0);
}
else {
GPIO_WriteHigh(GPIOD, GPIO_PIN_0);
}
}
}
All is normal, the light-emitting diode is shone, since the period of repetition 1 �?ºHz, but the problem what when I look an oscillograph on PD0 at that time when there should be a low level in its middle periodically appears a positive impulse??? Why?? Thanks!
