71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
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/*
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* @Description:
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* @Date: 2021-03-09 10:21:58
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* @LastEditors: CK.Zh
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* @LastEditTime: 2021-03-09 17:42:16
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* @FilePath: \NaviKit_EC_stm32\App\Src\isp.c
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*/
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#include <isp.h>
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#include "cmsis_os2.h" // ::CMSIS:RTOS2
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void ISP_Jump(){
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typedef void (*pFunction)(void);
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pFunction Jump_to_ISP;
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Jump_to_ISP = (pFunction) (*(__IO uint32_t*)(ISP_ADDRESS + 4));//ISP's program's reset vector (pc pointer initial value)
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__set_MSP(*(__IO uint32_t*) ISP_ADDRESS);
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Jump_to_ISP();
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while(1);
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}
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void ISP_Judge()
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{//Judge that if need jump to ISP area
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RTC_HandleTypeDef hrtc;
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hrtc.Instance = RTC;
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if(HAL_RTCEx_BKUPRead(&hrtc,MAGIC_VALUE_ADDRESS) == MAGIC_VALUE)
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{
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__HAL_RCC_PWR_CLK_ENABLE();
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__HAL_RCC_BKP_CLK_ENABLE();
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__HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_HSE_DIV128);
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__HAL_RCC_RTC_ENABLE();
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HAL_PWR_EnableBkUpAccess();
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HAL_RTCEx_BKUPWrite(&hrtc,MAGIC_VALUE_ADDRESS,0x0000);
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__HAL_RCC_RTC_DISABLE();
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__HAL_RCC_PWR_CLK_DISABLE();
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__HAL_RCC_BKP_CLK_DISABLE();
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HAL_PWR_DisableBkUpAccess();
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ISP_Jump();
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}
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}
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bool ISP_Prepare(){
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RTC_HandleTypeDef hrtc;
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hrtc.Instance = RTC;
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__HAL_RCC_PWR_CLK_ENABLE();
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__HAL_RCC_BKP_CLK_ENABLE();
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__HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_HSE_DIV128);
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__HAL_RCC_RTC_ENABLE();
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HAL_PWR_EnableBkUpAccess();
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HAL_RTCEx_BKUPWrite(&hrtc,MAGIC_VALUE_ADDRESS,MAGIC_VALUE);
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osDelay(10);
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if(HAL_RTCEx_BKUPRead(&hrtc,MAGIC_VALUE_ADDRESS) == MAGIC_VALUE)
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{//write successful
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TaskBeep(400,5);
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log_v("Enter to EC update state.");
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log_i("EC will reboot ,then run ISP automatic.");
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HAL_NVIC_SystemReset();
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}
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else{
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log_e("Backup register writen error, can not enter EC update state.");
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return false;
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}
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}
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