Posted on May 30, 2015 at 23:29I think I understand your request.
You need to add some standard modules that are included in the STM8S library.
To set/clear bits like PA1 you need to add stm8s_gpio.c to your project, then use one of the built in functions such as,
GPIO_WriteHigh(GPIO_TypeDef* GPIOx, GPIO_Pin_TypeDef PortPins) and
GPIO_WriteLow(GPIO_TypeDef* GPIOx, GPIO_Pin_TypeDef PortPins) to set high and low.
Example: GPIO_WriteHigh(GPIOA, GPIO_PIN_1); // sets port A bit 1 high
For timers you will need to add stm8s_timX.c to your project (Where X=1,2,3 or 4 to indicate which timer you are using).
Example:
// setup and start timer 3, used as a free running timer
TIM3_DeInit(); // reset timer 3
TIM3_TimeBaseInit(TimerPrescale, 0xffff); // prescaler 0x7fff, time period 0xffff
TIM3_Cmd(ENABLE); // enable timer 3
For other functions like interrupt control registers you can write directly to an address (look up the address and bit values in the reference manual, I use RM0016).
Example:
EXTI->CR1 = 0x08; // set port B interrupts to falling edge only
Hope this helps.
Rick
