Posted on May 03, 2013 at 14:36Hi ,
I am a new user of STM8. In my project I am using Active/halt mode an it wakes up with RTC Wakeup operation. My problem is, it is always waking up same times. it's equal to 3ms. I want update auto wake up times.
I am trying to change RTC_SetWakeUpCounter(30000) but it is not setting wake up times. How can ı change wake up times.
Thank you for your comments.
Here is the example code;
///////////////////////////////////////////////////////////////////
#include ''stm8l15x.h''
#include ''stm8l151f3.h''
#define ENABLE 1
#define DISABLE 0
void RTC_Config(void)
{
RTC_WriteProtectionCmd(DISABLE);
CLK_RTCClockConfig(CLK_RTCCLKSource_LSI, CLK_RTCCLKDiv_1);
while (CLK_GetFlagStatus(CLK_FLAG_LSIRDY) == RESET);
CLK_PeripheralClockConfig(CLK_Peripheral_RTC, ENABLE);
RTC_WakeUpClockConfig(RTC_WakeUpClock_RTCCLK_Div2);
RTC_ITConfig(RTC_IT_WUT, ENABLE);
enableInterrupts();
}
void GPIO_LowPower_Config(void)
{
GPIO_Init(GPIOA, GPIO_Pin_All, GPIO_Mode_Out_PP_Low_Slow);
GPIO_Init(GPIOB, GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_7, GPIO_Mode_Out_PP_Low_Slow);
GPIO_Init(GPIOB, GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5, GPIO_Mode_Out_PP_High_Slow);
GPIO_Init(GPIOC, GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6, GPIO_Mode_Out_PP_Low_Slow);
GPIO_Init(GPIOD, GPIO_Pin_All, GPIO_Mode_Out_PP_Low_Slow);
GPIO_Init(GPIOE, GPIO_Pin_All, GPIO_Mode_Out_PP_Low_Slow);
GPIO_Init(GPIOF, GPIO_Pin_All, GPIO_Mode_Out_PP_Low_Slow);
}
void Halt_Init(void)
{
PWR_PVDCmd(DISABLE);
/* Switch to LSI as system clock source */
/* system clock prescaler: 1*/
CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_1);
CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_LSI);
CLK_SYSCLKSourceSwitchCmd(ENABLE);
while (CLK_GetFlagStatus(CLK_FLAG_LSIRDY) == 0);
CLK_HSICmd(DISABLE);
CLK_HSEConfig(CLK_HSE_OFF);
/* Set STM8 in low power */
PWR_UltraLowPowerCmd(ENABLE);
/* Set GPIO in low power*/
GPIO_LowPower_Config();
/* Stop RTC Source clock */
RTC_WriteProtectionCmd(DISABLE);
RTC_Config();
RTC_WriteProtectionCmd(DISABLE);
CFG_GCR&=0xFD;
RTC_SetWakeUpCounter(30000);
RTC_WakeUpCmd(ENABLE);
CLK_PeripheralClockConfig(CLK_Peripheral_LCD, DISABLE);
}
void main(void)
{
Halt_Init();
halt();
while(1)
{
//GPIO_ToggleBits(GPIOB,GPIO_Pin_0);
}
}
/////////////////////////////////////////////////////////////
