STMicroelectronics STM8 - Page 87

Code Example
#include "STM8S.h"
void clock_setup(void);
void GPIO_setup(void);
void TIM1_setup(void);
void main(void)
{
signed int i = 0;
clock_setup();
GPIO_setup();
TIM1_setup();
while(TRUE)
{
for(i = 0; i < 1000; i += 1)
{
TIM1_SetCompare1(i);
delay_ms(1);
}
for(i = 1000; i > 0; i -= 1)
{
TIM1_SetCompare1(i);
delay_ms(1);
}
};
}
void clock_setup(void)
{
CLK_DeInit();
CLK_HSECmd(DISABLE);
CLK_LSICmd(DISABLE);
CLK_HSICmd(ENABLE);
while(CLK_GetFlagStatus(CLK_FLAG_HSIRDY) == FALSE);
CLK_ClockSwitchCmd(ENABLE);
CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
CLK_SYSCLKConfig(CLK_PRESCALER_CPUDIV1);
CLK_ClockSwitchConfig(CLK_SWITCHMODE_AUTO, CLK_SOURCE_HSI,
DISABLE, CLK_CURRENTCLOCKSTATE_ENABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_I2C, DISABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_SPI, DISABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_ADC, DISABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_AWU, DISABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_UART1, DISABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER1, ENABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER2, DISABLE);
CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER4, DISABLE);
}
void GPIO_setup(void)
{
GPIO_DeInit(GPIOB);
GPIO_Init(GPIOB, GPIO_PIN_0, GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_DeInit(GPIOC);