/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure LED1 and LED3 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED3);
/* Configure the system clock to 168 MHz */
SystemClock_Config();
/* Configure Key Button */
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO);
/* Test if Key push-button on EVAL Board is pressed */
if(BSP_PB_GetState(BUTTON_KEY) == 0x00)
{
HAL_FLASHEx_OBGetConfig(&FLASH_OBInitStruct);
/* Get BOR Option Bytes */
if((FLASH_OBInitStruct.BORLevel & 0x0C) != BOR_LEVEL)
{
/* Unlock the option bytes block access */
HAL_FLASH_OB_Unlock();
/* Select the desired V(BOR) Level */
FLASH_OBInitStruct.OptionType = OPTIONBYTE_BOR;
FLASH_OBInitStruct.BORLevel = BOR_LEVEL;
HAL_FLASHEx_OBProgram(&FLASH_OBInitStruct);
/* Launch the option byte loading */
HAL_FLASH_OB_Launch();
/* Locks the option bytes block access */
HAL_FLASH_OB_Lock();
}
}
/* Infinite loop */
while (1)
{
/* Toggle LED1 */
BSP_LED_Toggle(LED1);
/* Insert 50 ms delay */
HAL_Delay(50);
}
}
BOR_Result_t BOR_Set(BOR_Level_t BORValue) {
if (BOR_Get() == BORValue) {
return BOR_Result_Ok;
}
FLASH_OBProgramInitTypeDef FLASH_Handle;
FLASH_Handle.BORLevel = (uint32_t)BORValue;
FLASH_Handle.OptionType = OPTIONBYTE_BOR;
HAL_FLASH_OB_Unlock();
HAL_FLASHEx_OBProgram(&FLASH_Handle);
HAL_StatusTypeDef status = HAL_FLASH_OB_Launch();
HAL_FLASH_OB_Lock();
if (status != HAL_OK) {
return BOR_Result_Error;
}
return BOR_Result_Ok;
}
/**
* @brief Configure the write protection status of user flash area.
* @param modifier DISABLE or ENABLE the protection
* @retval HAL_StatusTypeDef HAL_OK if change is applied.
*/
HAL_StatusTypeDef FLASH_If_WriteProtectionConfig(uint32_t modifier)
{
uint32_t ProtectedSECTOR = 0xFFF;
FLASH_OBProgramInitTypeDef config_new, config_old;
HAL_StatusTypeDef result = HAL_OK;
/* Get pages write protection status ****************************************/
HAL_FLASHEx_OBGetConfig(&config_old);
/* The parameter says whether we turn the protection on or off */
config_new.WRPState = modifier;
/* We want to modify only the Write protection */
config_new.OptionType = OPTIONBYTE_WRP;
/* No read protection, keep BOR and reset settings */
config_new.RDPLevel = OB_RDP_LEVEL_0;
config_new.USERConfig = config_old.USERConfig;
/* Get pages already write protected ****************************************/
ProtectedSECTOR = config_old.WRPSector | FLASH_SECTOR_TO_BE_PROTECTED;
/* Unlock the Flash to enable the flash control register access *************/
HAL_FLASH_Unlock();
/* Unlock the Options Bytes *************************************************/
HAL_FLASH_OB_Unlock();
config_new.WRPSector = ProtectedSECTOR;
result = HAL_FLASHEx_OBProgram(&config_new);
return result;
}
/**
* @brief Configure the write protection status of user flash area.
* @param protectionstate : FLASHIF_WRP_DISABLE or FLASHIF_WRP_ENABLE the protection
* @retval uint32_t FLASHIF_OK if change is applied.
*/
uint32_t FLASH_If_WriteProtectionConfig(uint32_t protectionstate)
{
uint32_t ProtectedPAGE = 0x0;
FLASH_OBProgramInitTypeDef config_new, config_old;
HAL_StatusTypeDef result = HAL_OK;
/* Get pages write protection status ****************************************/
HAL_FLASHEx_OBGetConfig(&config_old);
/* The parameter says whether we turn the protection on or off */
config_new.WRPState = (protectionstate == FLASHIF_WRP_ENABLE ? OB_WRPSTATE_ENABLE : OB_WRPSTATE_DISABLE);
/* We want to modify only the Write protection */
config_new.OptionType = OPTIONBYTE_WRP;
/* No read protection, keep BOR and reset settings */
config_new.RDPLevel = OB_RDP_LEVEL_0;
config_new.USERConfig = config_old.USERConfig;
/* Get pages already write protected ****************************************/
ProtectedPAGE = config_old.WRPPage | FLASH_PAGE_TO_BE_PROTECTED;
/* Unlock the Flash to enable the flash control register access *************/
HAL_FLASH_Unlock();
/* Unlock the Options Bytes *************************************************/
HAL_FLASH_OB_Unlock();
/* Erase all the option Bytes ***********************************************/
result = HAL_FLASHEx_OBErase();
if (result == HAL_OK)
{
config_new.WRPPage = ProtectedPAGE;
result = HAL_FLASHEx_OBProgram(&config_new);
}
return (result == HAL_OK ? FLASHIF_OK: FLASHIF_PROTECTION_ERRROR);
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F0xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 48 MHz */
SystemClock_Config();
/* Initialize LED1, LED2 and LED3 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED2);
BSP_LED_Init(LED3);
/* Initialize test status */
MemoryProgramStatus = PASSED;
/* Unlock the Flash to enable the flash control register access *************/
HAL_FLASH_Unlock();
/* Unlock the Options Bytes *************************************************/
HAL_FLASH_OB_Unlock();
/* Get pages write protection status ****************************************/
HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct);
#ifdef WRITE_PROTECTION_DISABLE
/* Check if desired pages are already write protected ***********************/
if((OptionsBytesStruct.WRPPage & FLASH_PAGE_TO_BE_PROTECTED) != FLASH_PAGE_TO_BE_PROTECTED)
{
/* Restore write protected pages */
OptionsBytesStruct.OptionType = OPTIONBYTE_WRP;
OptionsBytesStruct.WRPState = OB_WRPSTATE_DISABLE;
OptionsBytesStruct.WRPPage = FLASH_PAGE_TO_BE_PROTECTED;
if(HAL_FLASHEx_OBProgram(&OptionsBytesStruct) != HAL_OK)
{
/* Error occurred while options bytes programming. **********************/
while (1)
{
BSP_LED_On(LED3);
}
}
/* Generate System Reset to load the new option byte values ***************/
HAL_FLASH_OB_Launch();
}
#elif defined WRITE_PROTECTION_ENABLE
/* Check if desired pages are not yet write protected ***********************/
if(((~OptionsBytesStruct.WRPPage) & FLASH_PAGE_TO_BE_PROTECTED )!= FLASH_PAGE_TO_BE_PROTECTED)
{
/* Enable the pages write protection **************************************/
OptionsBytesStruct.OptionType = OPTIONBYTE_WRP;
OptionsBytesStruct.WRPState = OB_WRPSTATE_ENABLE;
OptionsBytesStruct.WRPPage = FLASH_PAGE_TO_BE_PROTECTED;
if(HAL_FLASHEx_OBProgram(&OptionsBytesStruct) != HAL_OK)
{
/* Error occurred while options bytes programming. **********************/
while (1)
{
BSP_LED_On(LED3);
}
}
/* Generate System Reset to load the new option byte values ***************/
HAL_FLASH_OB_Launch();
}
#endif /* WRITE_PROTECTION_DISABLE */
/* Lock the Options Bytes *************************************************/
HAL_FLASH_OB_Lock();
#ifdef FLASH_PAGE_PROGRAM
/* The selected pages are not write protected *******************************/
if ((OptionsBytesStruct.WRPPage & FLASH_PAGE_TO_BE_PROTECTED) != 0x00)
{
/* Fill EraseInit structure************************************************/
EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES;
EraseInitStruct.PageAddress = FLASH_USER_START_ADDR;
EraseInitStruct.NbPages = (FLASH_USER_END_ADDR - FLASH_USER_START_ADDR)/FLASH_PAGE_SIZE;
if (HAL_FLASHEx_Erase(&EraseInitStruct, &PageError) != HAL_OK)
{
/*
Error occurred while page erase.
User can add here some code to deal with this error.
PageError will contain the faulty page and then to know the code error on this page,
user can call function 'HAL_FLASH_GetError()'
*/
while (1)
{
BSP_LED_On(LED3);
}
}
/* FLASH Word program of DATA_32 at addresses defined by FLASH_USER_START_ADDR and FLASH_USER_END_ADDR */
Address = FLASH_USER_START_ADDR;
while (Address < FLASH_USER_END_ADDR)
{
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Address, DATA_32) == HAL_OK)
{
Address = Address + 4;
}
else
{
/* Error occurred while writing data in Flash memory.
User can add here some code to deal with this error */
while (1)
{
BSP_LED_On(LED3);
}
}
}
/* Check the correctness of written data */
Address = FLASH_USER_START_ADDR;
while (Address < FLASH_USER_END_ADDR)
{
if((*(__IO uint32_t*) Address) != DATA_32)
{
MemoryProgramStatus = FAILED;
}
Address += 4;
}
}
else
{
/* The desired pages are write protected */
/* Check that it is not allowed to write in this page */
Address = FLASH_USER_START_ADDR;
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Address, DATA_32) != HAL_OK)
{
/* Error returned during programmation. */
/* Check that WRPERR flag is well set */
if (HAL_FLASH_GetError() == HAL_FLASH_ERROR_WRP)
{
MemoryProgramStatus = FAILED;
}
else
{
/* Another error occurred.
User can add here some code to deal with this error */
while (1)
{
BSP_LED_On(LED3);
}
}
}
else
{
/* Write operation is successful. Should not occur
User can add here some code to deal with this error */
while (1)
{
BSP_LED_On(LED3);
}
}
}
#endif /* FLASH_PAGE_PROGRAM */
/* Lock the Flash to disable the flash control register access (recommended
to protect the FLASH memory against possible unwanted operation) *********/
HAL_FLASH_Lock();
/*Check if there is an issue to program data*/
if (MemoryProgramStatus == PASSED)
{
/* No error detected. Switch on LED1*/
BSP_LED_On(LED1);
}
else
{
/* Error detected. Switch on LED2*/
BSP_LED_On(LED2);
}
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F2xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 120 MHz */
SystemClock_Config();
/* Configure TAMPER/KEY button */
BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);
/*##-1- Initialize the LCD #################################################*/
/* Initialize the LCD */
BSP_LCD_Init();
/* Set LCD font */
BSP_LCD_SetFont(&Font20);
/*##-2- Display messages on LCD ############################################*/
/* Clear the LCD */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
/* Display test name on LCD */
BSP_LCD_DisplayStringAtLine(0,(uint8_t*)" Flash Write ");
BSP_LCD_DisplayStringAtLine(1,(uint8_t*)" protection test ");
BSP_LCD_DisplayStringAtLine(2,(uint8_t*)" Press User ");
BSP_LCD_DisplayStringAtLine(3,(uint8_t*)" Tamper-button ");
/* Infinite loop */
while (1)
{
/* Wait for TAMPER button to be pushed */
while(BSP_PB_GetState(BUTTON_TAMPER) != RESET)
{
}
/* Get FLASH_WRP_SECTORS write protection status */
HAL_FLASHEx_OBGetConfig(&OBInit);
SectorsWRPStatus = OBInit.WRPSector & FLASH_WRP_SECTORS;
if (SectorsWRPStatus == 0)
{
/* If FLASH_WRP_SECTORS are write protected, disable the write protection */
/* Allow Access to option bytes sector */
HAL_FLASH_OB_Unlock();
/* Allow Access to Flash control registers and user Flash */
HAL_FLASH_Unlock();
/* Disable FLASH_WRP_SECTORS write protection */
OBInit.OptionType = OPTIONBYTE_WRP;
OBInit.WRPState = OB_WRPSTATE_DISABLE;
OBInit.Banks = FLASH_BANK_1;
OBInit.WRPSector = FLASH_WRP_SECTORS;
HAL_FLASHEx_OBProgram(&OBInit);
/* Start the Option Bytes programming process */
if (HAL_FLASH_OB_Launch() != HAL_OK)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Prevent Access to option bytes sector */
HAL_FLASH_OB_Lock();
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
HAL_FLASH_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
HAL_FLASHEx_OBGetConfig(&OBInit);
SectorsWRPStatus = OBInit.WRPSector & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS write protection is disabled */
if (SectorsWRPStatus == FLASH_WRP_SECTORS)
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(5,(uint8_t*)" Write ");
BSP_LCD_DisplayStringAtLine(6,(uint8_t*)" protection is ");
BSP_LCD_DisplayStringAtLine(7,(uint8_t*)" disabled ");
}
else
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(5,(uint8_t*)" Write ");
BSP_LCD_DisplayStringAtLine(6,(uint8_t*)" protection is ");
BSP_LCD_DisplayStringAtLine(7,(uint8_t*)" not disabled ");
}
}
else
{ /* If FLASH_WRP_SECTORS are not write protected, enable the write protection */
/* Allow Access to option bytes sector */
HAL_FLASH_OB_Unlock();
/* Allow Access to Flash control registers and user Flash */
HAL_FLASH_Unlock();
/* Enable FLASH_WRP_SECTORS write protection */
OBInit.OptionType = OPTIONBYTE_WRP;
OBInit.WRPState = OB_WRPSTATE_ENABLE;
OBInit.Banks = FLASH_BANK_1;
OBInit.WRPSector = FLASH_WRP_SECTORS;
HAL_FLASHEx_OBProgram(&OBInit);
/* Start the Option Bytes programming process */
if (HAL_FLASH_OB_Launch() != HAL_OK)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Prevent Access to option bytes sector */
HAL_FLASH_OB_Lock();
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
HAL_FLASH_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
HAL_FLASHEx_OBGetConfig(&OBInit);
SectorsWRPStatus = OBInit.WRPSector & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS are write protected */
if (SectorsWRPStatus == 0)
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(5,(uint8_t*)" Write ");
BSP_LCD_DisplayStringAtLine(6,(uint8_t*)" protection is ");
BSP_LCD_DisplayStringAtLine(7,(uint8_t*)" enabled ");
}
else
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(5,(uint8_t*)" Write ");
BSP_LCD_DisplayStringAtLine(6,(uint8_t*)" protection is ");
BSP_LCD_DisplayStringAtLine(7,(uint8_t*)" enabled ");
}
}
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint8_t lcd_status = LCD_OK;
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization: global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Configure Tamper push-button */
BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);
/*##-1- Initialize the LCD #################################################*/
/* Initialize the SDRAM */
if (BSP_SDRAM_Init() != SDRAM_OK)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Initialize DSI LCD */
lcd_status = BSP_LCD_Init();
if (lcd_status != LCD_OK)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Set LCD Foreground Layer */
BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
BSP_LCD_SelectLayer(0);
/* Set LCD font */
BSP_LCD_SetFont(&Font20);
/*##-2- Display messages on LCD ############################################*/
/* Clear the LCD */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
/* Display test name on LCD */
BSP_LCD_DisplayStringAt(0, LINE(8), (uint8_t *)"Flash Write", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(9), (uint8_t *)"protection test", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(10), (uint8_t *)"Press User", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(11), (uint8_t *)"Tamper-button", CENTER_MODE);
while (1)
{
/* Wait for Tamper push-button to be pushed */
while (BSP_PB_GetState(BUTTON_TAMPER) != RESET)
{
}
/* Wait for Tamper push-button to be released */
while (BSP_PB_GetState(BUTTON_TAMPER) != SET)
{
}
/* Get FLASH_WRP_SECTORS write protection status */
HAL_FLASHEx_OBGetConfig(&OBInit);
SectorsWRPStatus = OBInit.WRPSector & FLASH_WRP_SECTORS;
if (SectorsWRPStatus == 0)
{
/* If FLASH_WRP_SECTORS are write protected, disable the write protection */
/* Allow Access to option bytes sector */
HAL_FLASH_OB_Unlock();
/* Allow Access to Flash control registers and user Flash */
HAL_FLASH_Unlock();
/* Disable FLASH_WRP_SECTORS write protection */
OBInit.OptionType = OPTIONBYTE_WRP;
OBInit.WRPState = OB_WRPSTATE_DISABLE;
OBInit.WRPSector = FLASH_WRP_SECTORS;
HAL_FLASHEx_OBProgram(&OBInit);
/* Start the Option Bytes programming process */
if (HAL_FLASH_OB_Launch() != HAL_OK)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Prevent Access to option bytes sector */
HAL_FLASH_OB_Lock();
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
HAL_FLASH_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
HAL_FLASHEx_OBGetConfig(&OBInit);
SectorsWRPStatus = OBInit.WRPSector & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS write protection is disabled */
if (SectorsWRPStatus == FLASH_WRP_SECTORS)
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(0, LINE(13), (uint8_t *)"Write", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)"protection is", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(15), (uint8_t *)"disabled", CENTER_MODE);
}
else
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, LINE(13), (uint8_t *)"Write", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)"protection is", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(15), (uint8_t *)"not disabled", CENTER_MODE);
}
}
else
{
/* If FLASH_WRP_SECTORS are not write protected, enable the write protection */
/* Allow Access to option bytes sector */
HAL_FLASH_OB_Unlock();
/* Allow Access to Flash control registers and user Flash */
HAL_FLASH_Unlock();
/* Enable FLASH_WRP_SECTORS write protection */
OBInit.OptionType = OPTIONBYTE_WRP;
OBInit.WRPState = OB_WRPSTATE_ENABLE;
OBInit.WRPSector = FLASH_WRP_SECTORS;
HAL_FLASHEx_OBProgram(&OBInit);
/* Start the Option Bytes programming process */
if (HAL_FLASH_OB_Launch() != HAL_OK)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Prevent Access to option bytes sector */
HAL_FLASH_OB_Lock();
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
HAL_FLASH_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
HAL_FLASHEx_OBGetConfig(&OBInit);
SectorsWRPStatus = OBInit.WRPSector & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS are write protected */
if (SectorsWRPStatus == 0)
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(0, LINE(13), (uint8_t *)"Write", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)"protection is", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(15), (uint8_t *)" enabled ", CENTER_MODE);
}
else
{
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, LINE(13), (uint8_t *)"Write", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)"protection is", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(15), (uint8_t *)"not enabled", CENTER_MODE);
}
}
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F0xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Low Level Initialization
*/
HAL_Init();
/* Initialize LED2 */
BSP_LED_Init(LED2);
/* Configure the system clock to 48 MHz */
SystemClock_Config();
/* Unlock the Flash to enable the flash control register access *************/
HAL_FLASH_Unlock();
/* Unlock the Options Bytes *************************************************/
HAL_FLASH_OB_Unlock();
/* Get pages write protection status ****************************************/
HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct);
#ifdef WRITE_PROTECTION_DISABLE
/* Get pages already write protected ****************************************/
ProtectedPages = ~(OptionsBytesStruct.WRPPage | FLASH_PAGES_TO_BE_PROTECTED);
/* Check if desired pages are already write protected ***********************/
if((OptionsBytesStruct.WRPPage | (~FLASH_PAGES_TO_BE_PROTECTED)) != 0xFFFFFFFF )
{
/* Erase all the option Bytes *********************************************/
if(HAL_FLASHEx_OBErase() != HAL_OK)
{
/* Error occurred while options bytes erase. ****************************/
while (1)
{
/* Make LED2 blink (100ms on, 2s off) to indicate error in Erase operation */
BSP_LED_On(LED2);
HAL_Delay(100);
BSP_LED_On(LED2);
HAL_Delay(2000);
}
}
/* Check if there is write protected pages ********************************/
if(ProtectedPages != 0x0)
{
/* Restore write protected pages */
OptionsBytesStruct.OptionType = OPTIONBYTE_WRP;
OptionsBytesStruct.WRPState = WRPSTATE_ENABLE;
OptionsBytesStruct.WRPPage = ProtectedPages;
if(HAL_FLASHEx_OBProgram(&OptionsBytesStruct) != HAL_OK)
{
/* Error occurred while options bytes programming. **********************/
while (1)
{
/* Make LED2 blink (100ms on, 2s off) to indicate error in OB programming operation */
BSP_LED_On(LED2);
HAL_Delay(100);
BSP_LED_Off(LED2);
HAL_Delay(2000);
}
}
}
/* Generate System Reset to load the new option byte values ***************/
HAL_FLASH_OB_Launch();
}
#elif defined WRITE_PROTECTION_ENABLE
/* Get current write protected pages and the new pages to be protected ******/
ProtectedPages = (~OptionsBytesStruct.WRPPage) | FLASH_PAGES_TO_BE_PROTECTED;
/* Check if desired pages are not yet write protected ***********************/
if(((~OptionsBytesStruct.WRPPage) & FLASH_PAGES_TO_BE_PROTECTED )!= FLASH_PAGES_TO_BE_PROTECTED)
{
/* Erase all the option Bytes because if a program operation is
performed on a protected page, the Flash memory returns a
protection error */
if(HAL_FLASHEx_OBErase() != HAL_OK)
{
/* Error occurred while options bytes erase. ****************************/
while (1)
{
/* Make LED2 blink (100ms on, 2s off) to indicate error in Erase operation */
BSP_LED_On(LED2);
HAL_Delay(100);
BSP_LED_Off(LED2);
HAL_Delay(2000);
}
}
/* Enable the pages write protection **************************************/
OptionsBytesStruct.OptionType = OPTIONBYTE_WRP;
OptionsBytesStruct.WRPState = WRPSTATE_ENABLE;
OptionsBytesStruct.WRPPage = ProtectedPages;
if(HAL_FLASHEx_OBProgram(&OptionsBytesStruct) != HAL_OK)
{
/* Error occurred while options bytes programming. **********************/
while (1)
{
/* Make LED2 blink (100ms on, 2s off) to indicate error in OB programming operation */
BSP_LED_On(LED2);
HAL_Delay(100);
BSP_LED_Off(LED2);
HAL_Delay(2000);
}
}
/* Generate System Reset to load the new option byte values ***************/
HAL_FLASH_OB_Launch();
}
#endif /* WRITE_PROTECTION_DISABLE */
/* Lock the Options Bytes *************************************************/
HAL_FLASH_OB_Lock();
#ifdef FLASH_PAGE_PROGRAM
/* The selected pages are not write protected *******************************/
if ((OptionsBytesStruct.WRPPage & FLASH_PAGES_TO_BE_PROTECTED) != 0x00)
{
/* Fill EraseInit structure************************************************/
EraseInitStruct.TypeErase = TYPEERASE_PAGES;
EraseInitStruct.PageAddress = FLASH_USER_START_ADDR;
EraseInitStruct.NbPages = (FLASH_USER_END_ADDR - FLASH_USER_START_ADDR)/FLASH_PAGE_SIZE;
if (HAL_FLASHEx_Erase(&EraseInitStruct, &PageError) != HAL_OK)
{
/*
Error occurred while page erase.
User can add here some code to deal with this error.
PageError will contain the faulty page and then to know the code error on this page,
user can call function 'HAL_FLASH_GetError()'
*/
while (1)
{
/* Make LED2 blink (100ms on, 2s off) to indicate error in Erase operation */
BSP_LED_On(LED2);
HAL_Delay(100);
BSP_LED_Off(LED2);
HAL_Delay(2000);
}
}
/* FLASH Half Word program of data 0x1753 at addresses defined by FLASH_USER_START_ADDR and FLASH_USER_END_ADDR */
Address = FLASH_USER_START_ADDR;
while (Address < FLASH_USER_END_ADDR)
{
if (HAL_FLASH_Program(TYPEPROGRAM_HALFWORD, Address, Data) == HAL_OK)
{
Address = Address + 2;
}
else
{
/* Error occurred while writing data in Flash memory.
User can add here some code to deal with this error */
while (1)
{
/* Make LED2 blink (100ms on, 2s off) to indicate error in Write operation */
BSP_LED_On(LED2);
HAL_Delay(100);
BSP_LED_Off(LED2);
HAL_Delay(2000);
}
}
}
/* Check the correctness of written data */
Address = FLASH_USER_START_ADDR;
while (Address < FLASH_USER_END_ADDR)
{
if((*(__IO uint16_t*) Address) != Data)
{
MemoryProgramStatus = FAILED;
}
Address += 2;
}
}
else
{
/* Error to program the flash : The desired pages are write protected */
MemoryProgramStatus = FAILED;
}
#endif /* FLASH_PAGE_PROGRAM */
/* Lock the Flash to disable the flash control register access (recommended
to protect the FLASH memory against possible unwanted operation) *********/
HAL_FLASH_Lock();
/*Check if there is an issue to program data*/
if (MemoryProgramStatus == PASSED)
{
/* No error detected. Switch on LED2*/
BSP_LED_On(LED2);
}
else
{
/* Error detected. LED2 will blink with 1s period */
while (1)
{
BSP_LED_On(LED2);
HAL_Delay(1000);
BSP_LED_Off(LED2);
HAL_Delay(1000);
}
}
/* Infinite loop */
while (1)
{
}
}
static void set_dfu_option_bytes(uint8_t force_bootloader) {
FLASH_OBProgramInitTypeDef ob_cfg;
uint8_t selected_cfg;
HAL_FLASHEx_OBGetConfig(&ob_cfg);
if (force_bootloader) {
/*
From ST AN2606, pattern 6:
nBoot0(bit) = 0, nBoot1(bit) = 1 and nBoot0_SW(bit) = 0
*/
selected_cfg = OB_BOOT_SEL_RESET | OB_RAM_PARITY_CHECK_RESET |
OB_VDDA_ANALOG_ON | OB_BOOT1_SET |
OB_BOOT0_RESET | OB_STDBY_NO_RST | OB_STOP_NO_RST |
OB_WDG_SW;
} else {
/* Set option bytes to the default value */
selected_cfg = OB_BOOT_SEL_SET | OB_RAM_PARITY_CHECK_RESET |
OB_VDDA_ANALOG_ON | OB_BOOT1_SET |
OB_BOOT0_SET | OB_STDBY_NO_RST | OB_STOP_NO_RST |
OB_WDG_SW;
}
if (selected_cfg != ob_cfg.USERConfig) {
ob_cfg.OptionType = OPTIONBYTE_USER;
ob_cfg.USERConfig = selected_cfg;
HAL_FLASH_Unlock();
HAL_FLASH_OB_Unlock();
HAL_FLASHEx_OBErase();
HAL_FLASHEx_OBProgram(&ob_cfg);
HAL_FLASH_OB_Lock();
HAL_FLASH_Lock();
HAL_FLASH_OB_Launch();
}
}
