/**
* @brief Main program.
* @param None
* @retval None
*/
void main(void)
{
/* Initialize LED1 and LED2 mounted on STM8L152X-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
/* Initialize Key and Joystick down push-buttons mounted on STM8L152X-EVAL board */
STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_DOWN, BUTTON_MODE_EXTI);
/* enable interrupts */
enableInterrupts();
/* Check if the MCU has resumed from WWDG reset */
if (RST_GetFlagStatus(RST_FLAG_WWDGF) != RESET)
{
/* WWDGF flag set */
/* Toggle LED1 */
for (Index = 7; Index != 0; Index--)
{
STM_EVAL_LEDToggle(LED1);
Delay(0x7FFF);
}
/* Clear WWDGF Flag */
RST_ClearFlag(RST_FLAG_WWDGF);
}
/* WWDG Configuration */
WWDG_Config();
while (1)
{
/* Check if WWDG counter refresh is allowed in Allowed window */
if (AllowedRefresh != DISABLE)
{
/* get WWDG counter value */
/* wait until WWDG counter becomes lower than window value */
while ((WWDG_GetCounter() & 0x7F) > WINDOW_VALUE);
/* Refresh WWDG counter during allowed window so no MCU reset will occur */
WWDG_SetCounter(COUNTER_INIT);
}
/* Check if WWDG counter refresh is allowed in non Allowed window */
if (NonAlowedRefresh != DISABLE)
{
/* wait until WWDG counter becomes higher than window value */
while ((WWDG_GetCounter() & 0x7F) < WINDOW_VALUE);
/* Refresh WWDG counter during non allowed window so MCU reset will occur */
WWDG_SetCounter(COUNTER_INIT);
}
/* Toggle LED2 */
STM_EVAL_LEDToggle(LED2);
Delay(0x6FFF);
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f0xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* Initialize LEDs and Tamper Button mounted on EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_PBInit(BUTTON_TAMPER, BUTTON_MODE_EXTI);
/* Check if the system has resumed from WWDG reset */
if (RCC_GetFlagStatus(RCC_FLAG_WWDGRST) != RESET)
{
/* WWDGRST flag set */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
/* Clear reset flags */
RCC_ClearFlag();
}
else
{
/* WWDGRST flag is not set */
/* Turn off LED1 */
STM_EVAL_LEDOff(LED1);
}
/* Setup SysTick Timer for 1 msec interrupts */
if (SysTick_Config(SystemCoreClock / 1000))
{
/* Capture error */
while (1)
{}
}
/* Configure WWDG */
WWDG_Config();
while (1)
{
/* Toggle LED2 */
STM_EVAL_LEDToggle(LED2);
/* Insert 33 ms delay */
Delay(33);
/* Update WWDG counter */
WWDG_SetCounter(127);
}
}