/**
* @brief Automatic test switch to LSE clock from HSI and return to HSI
* @caller auto_test
* @param None
* @retval None
*/
void test_LSE(void)
{
/* Switch the clock to LSE */
LCD_GLASS_DisplayString("LSE");
CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_1);
CLK_LSEConfig(CLK_LSE_ON);
delay_ms(LSE_DELAY);
if((CLK->ECKCR & CLK_ECKCR_LSERDY) == RESET)
{
LCD_GLASS_DisplayString("LSE");
delay_ms(LSE_DELAY);
if((CLK->ECKCR & CLK_ECKCR_LSERDY) == RESET)
{
LCD_GLASS_DisplayString("LSE");
delay_ms(LSE_DELAY);
if((CLK->ECKCR & CLK_ECKCR_LSERDY) == RESET)
{
/* Switch the clock to HSI*/
CLK_LSEConfig(CLK_LSE_OFF);
CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_8);
CLK_HSICmd(ENABLE);
while (((CLK->ICKCR)& 0x02)!=0x02);
CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_HSI);
CLK_SYSCLKSourceSwitchCmd(ENABLE);
while (((CLK->SWCR)& 0x01)==0x01);
while(1)
{
LCD_GLASS_ScrollSentence("LSE Not OK ",1,SCROLL_SPEED); //Press reset for exit
KeyPressed = FALSE;
}
}
}
}
/* Wait flag LSE ready */
while (!((CLK->ECKCR)& CLK_ECKCR_LSERDY));
/* Switch in LSE clock */
CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_LSE);
CLK_SYSCLKSourceSwitchCmd(ENABLE);
while (((CLK->SWCR)& 0x01)==0x01);
LCD_GLASS_DisplayString("LSE OK");
/* Switch the clock to HSI */
CLK_LSEConfig(CLK_LSE_OFF);
CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_8);
CLK_HSICmd(ENABLE);
while (((CLK->ICKCR)& 0x02)!=0x02);
CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_HSI);
CLK_SYSCLKSourceSwitchCmd(ENABLE);
while (((CLK->SWCR)& 0x01)==0x01);
delay_ms(100);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
void main(void)
{
/* Enable LSE */
CLK_LSEConfig(CLK_LSE_ON);
/* Wait for LSE clock to be ready */
while (CLK_GetFlagStatus(CLK_FLAG_LSERDY) == RESET);
/* wait for 1 second for the LSE Stabilisation */
LSE_StabTime();
/* Select LSE (32.768 KHz) as RTC clock source */
CLK_RTCClockConfig(CLK_RTCCLKSource_LSE, CLK_RTCCLKDiv_1);
CLK_PeripheralClockConfig(CLK_Peripheral_RTC, ENABLE);
/* Calendar Configuration */
Calendar_Init();
/*RTC Tamper Configuration*/
Tamper_Init();
/* EvalBoard Configuration */
EvalBoard_Init();
Tamper_DelayShow(TampFilterIndex);
while (1)
{
EnterSafeCode();
Time_Show(LCD_LINE2, SHOW_POINT2);
ExitSafeCode();
}
}
/**
* @brief This function initializes in Ultra Low Power mode,
* disable the LCD, LSE and configures the unused IOs
* in output push-pull
* @caller main and ADC_Icc_Test
* @param None
* @retval None
*/
void Halt_Init(void)
{
/* Set STM8 in low power */
PWR->CSR2 = 0x2;
LCD_Cmd(DISABLE);
/* To wait LCD disable */
while ((LCD->CR3 & 0x40) != 0x00);
/* Set GPIO in low power*/
GPIO_LowPower_Config();
/* Stop RTC Source clock */
CLK_RTCClockConfig(CLK_RTCCLKSource_Off, CLK_RTCCLKDiv_1);
#ifdef USE_LSE
CLK_LSEConfig(CLK_LSE_OFF);
while ((CLK->ECKCR & 0x04) != 0x00);
#else
CLK_LSICmd(DISABLE);
while ((CLK->ICKCR & 0x04) != 0x00);
#endif
/* Stop clock RTC and LCD */
CLK_PeripheralClockConfig(CLK_Peripheral_RTC, DISABLE);
CLK_PeripheralClockConfig(CLK_Peripheral_LCD, DISABLE);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
void main(void)
{
/* Enable LSE */
CLK_LSEConfig(CLK_LSE_ON);
/* Wait for LSE clock to be ready */
while (CLK_GetFlagStatus(CLK_FLAG_LSERDY) == RESET);
/* wait for 1 second for the LSE Stabilisation */
Delay_Seconds(1);
/* Select LSE (32.768 KHz) as RTC clock source */
CLK_RTCClockConfig(CLK_RTCCLKSource_LSE, CLK_RTCCLKDiv_1);
CLK_PeripheralClockConfig(CLK_Peripheral_RTC, ENABLE);
/*RTC Tamper Configuration*/
Tamper_Init();
/* Calendar Configuration */
Calendar_Init();
/* EvalBoard Configuration */
EvalBoard_Init();
/* RTC Time fields reset*/
Time_Reset();
/* RTC Time pause waiting for a press on SEL Key */
Time_Pause();
while (1)
{
EnterSafeCode();
Time_Show(LCD_LINE2);
ExitSafeCode();
}
}