TM_BOR_Result_t TM_BOR_Set(TM_BOR_Level_t BORValue) {
FLASH_Status status;
/* Check current BOR value */
if (TM_BOR_Get() != BORValue) {
/* Set new value */
/* Unlocks the option bytes block access */
FLASH_OB_Unlock();
/* Select the desired V(BOR) Level */
FLASH_OB_BORConfig((uint32_t)BORValue);
/* Launch the option byte loading */
status = FLASH_OB_Launch();
/* Lock access to registers */
FLASH_OB_Lock();
/* Check success */
if (status != FLASH_COMPLETE) {
/* Return error */
return TM_BOR_Result_Error;
}
}
/* Return OK */
return TM_BOR_Result_Ok;
}
/**
* Check the brown out reset threshold is 2.7 volts and if not
* resets it. This solves an issue that can prevent boards
* powering up with some BEC
*/
void check_bor()
{
uint8_t bor = FLASH_OB_GetBOR();
if(bor != OB_BOR_LEVEL3) {
FLASH_OB_Unlock();
FLASH_OB_BORConfig(OB_BOR_LEVEL3);
FLASH_OB_Launch();
while(FLASH_WaitForLastOperation() == FLASH_BUSY);
FLASH_OB_Lock();
while(FLASH_WaitForLastOperation() == FLASH_BUSY);
}
}
/**
* @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
files (startup_stm32f40_41xxx.s/startup_stm32f427_437xx.s/startup_stm32f429_439xx.s)
before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* Initialize LED1 on EVAL board */
STM_EVAL_LEDInit(LED1);
/* Initialize Key Button mounted on EVAL board */
STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_GPIO);
/* Test if Key push-button on EVAL Board is pressed */
if (STM_EVAL_PBGetState(BUTTON_KEY) == 0x00)
{
/* Get BOR Option Bytes */
if((FLASH_OB_GetBOR() & 0x0C) != BOR_LEVEL)
{
/* Unlocks the option bytes block access */
FLASH_OB_Unlock();
/* Select the desired V(BOR) Level */
FLASH_OB_BORConfig(BOR_LEVEL);
/* Launch the option byte loading */
FLASH_OB_Launch();
/* Locks the option bytes block access */
FLASH_OB_Lock();
}
}
while (1)
{
/* Toggle LED1 */
STM_EVAL_LEDToggle(LED1);
/* Inserted Delay */
for(uwCounter = 0; uwCounter < 0x5FFFF; uwCounter++);
}
}
/**
* @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_stm32l1xx_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32l1xx.c file
*/
/* Initialize LED1 */
STM_EVAL_LEDInit(LED1);
/* Get BOR Option Bytes */
BOROptionBytes = FLASH_OB_GetBOR();
#ifdef BOR_MODIFY
if((BOROptionBytes & 0x0F) != BOR_LEVEL)
{
/* Unlocks the option bytes block access */
FLASH_OB_Unlock();
/* Clears the FLASH pending flags */
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR
| FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR);
/* Select the desired V(BOR) Level ---------------------------------------*/
FLASH_OB_BORConfig(BOR_LEVEL);
/* Launch the option byte loading */
FLASH_OB_Launch();
}
#endif
while (1)
{
/* Toggle The LED1 */
STM_EVAL_LEDToggle(LED1);
/* Inserted Delay */
for(Counter = 0; Counter < 0x5FFFF; Counter++);
}
}
void set_bor(void)
{
__IO uint32_t BOROptionBytes = 0;
/* Get BOR Option Bytes */
BOROptionBytes = FLASH_OB_GetBOR();
if((BOROptionBytes & 0x0F) != BOR_LEVEL)
{
/* Unlocks the option bytes block access */
FLASH_OB_Unlock();
/* Clears the FLASH pending flags */
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR
| FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR);
/* Select the desired V(BOR) Level ---------------------------------------*/
FLASH_OB_BORConfig(BOR_LEVEL);
/* Launch the option byte loading */
FLASH_OB_Launch();
FLASH_OB_Lock();
}
}
/**
* @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_stm32l1xx_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32l1xx.c file
*/
/* Set the vector table address */
#if defined(BOOT_FROM_BANK1)
/* Set the vector table to the Bank1 start address */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, BANK1_START_ADDRESS);
#elif defined(BOOT_FROM_BANK2)
/* Set the vector table to the Bank1 start address */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, BANK2_START_ADDRESS);
#endif /* BOOT_FROM_BANK1 */
/* Initialize LEDs, Buttons and LCD on STM32L152D-EVAL board ****************/
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Save the first BANK1 page */
FLASH_SaveBANK1();
/* Save the first BANK2 page */
FLASH_SaveBANK2();
/* SysTick end of count event each 10ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
/* Configure the Joystick buttons */
STM_EVAL_PBInit(BUTTON_UP, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_SEL, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_DOWN, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_RIGHT, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_LEFT, BUTTON_MODE_GPIO);
/* Initialize the LCD */
STM32L152D_LCD_Init();
/* Display message on STM32L152D-EVAL LCD ************************************/
/* Clear the LCD */
LCD_Clear(LCD_COLOR_WHITE);
/* Set the LCD Back Color */
#if defined(BOOT_FROM_BANK1)
LCD_SetBackColor(LCD_COLOR_BLUE);
#elif defined(BOOT_FROM_BANK2)
LCD_SetBackColor(LCD_COLOR_RED);
#endif /* BOOT_FROM_BANK1 */
/* Set the LCD Text Color */
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_0, MESSAGE1);
LCD_DisplayStringLine(LCD_LINE_1, MESSAGE2);
LCD_DisplayStringLine(LCD_LINE_2, MESSAGE3);
LCD_DisplayStringLine(LCD_LINE_4, MESSAGE4);
LCD_SetFont(&Font12x12);
LCD_SetTextColor(LCD_COLOR_GREEN);
LCD_DisplayStringLine(LCD_LINE_10, MESSAGE5);
LCD_DisplayStringLine(LCD_LINE_11, MESSAGE6);
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_12, MESSAGE7);
LCD_DisplayStringLine(LCD_LINE_13, MESSAGE8);
LCD_SetTextColor(LCD_COLOR_GREEN);
LCD_DisplayStringLine(LCD_LINE_14, MESSAGE9);
LCD_DisplayStringLine(LCD_LINE_15, MESSAGE10);
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_16, MESSAGE11);
LCD_DisplayStringLine(LCD_LINE_17, MESSAGE12);
LCD_SetTextColor(LCD_COLOR_GREEN);
LCD_DisplayStringLine(LCD_LINE_18, MESSAGE13);
LCD_DisplayStringLine(LCD_LINE_19, MESSAGE14);
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_SetFont(&Font16x24);
/* Turn on leds available on STM32L152D-EVAL ************************************/
STM_EVAL_LEDOn(LED1);
STM_EVAL_LEDOn(LED2);
STM_EVAL_LEDOn(LED3);
STM_EVAL_LEDOn(LED4);
/* Infinite loop */
while (1)
{
/*--- If Joystick DOWN button is pushed, reset BFB2 bit to enable boot from Bank2
(active after next reset, w/ Boot pins set in Boot from Flash memory position ---*/
if (STM_EVAL_PBGetState(BUTTON_DOWN) == 0)
{
/* Reset BFB2 bit to enable boot from Flash Bank2 */
FLASH_Unlock();
FLASH_OB_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR |
FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR | FLASH_FLAG_OPTVERRUSR);
FLASH_OB_UserConfig(OB_IWDG_SW, OB_STOP_NoRST, OB_STDBY_NoRST);
FLASH_OB_BORConfig(OB_BOR_LEVEL1);
if (FLASH_OB_BootConfig(OB_BOOT_BANK2) == FLASH_COMPLETE)
{
/* Generate System Reset to load the new option byte values */
FLASH_OB_Launch();
}
else
{
/* Display information */
LCD_DisplayStringLine(LCD_LINE_6, MESSAGE15);
}
}
/*--- If Joystick UP button is pushed, set BFB2 bit to enable boot from Bank1
(active after next reset, w/ Boot pins set in Boot from Flash memory position ---*/
if (STM_EVAL_PBGetState(BUTTON_UP) == 0)
{
/* Set BFB2 bit to enable boot from Flash Bank2 */
FLASH_Unlock();
FLASH_OB_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR |
FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR | FLASH_FLAG_OPTVERRUSR);
FLASH_OB_UserConfig(OB_IWDG_SW, OB_STOP_NoRST, OB_STDBY_NoRST);
FLASH_OB_BORConfig(OB_BOR_LEVEL1);
if (FLASH_OB_BootConfig(OB_BOOT_BANK1) == FLASH_COMPLETE)
{
/* Generate System Reset to load the new option byte values */
FLASH_OB_Launch();
}
else
{
/* Display information */
LCD_DisplayStringLine(LCD_LINE_6, MESSAGE15);
}
}
/*--- If Joystick LEFT button is pushed, program the content of address 0x08000000
(base address of Bank1) to 0x00 ---*/
if (STM_EVAL_PBGetState(BUTTON_LEFT) == 0)
{
FLASH_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR |
FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR | FLASH_FLAG_OPTVERRUSR);
/* Erase stack pointer value at Bank 1 start address */
FLASH_ErasePage(0x08000000);
FLASH_Lock();
LCD_ClearLine(LCD_LINE_5);
LCD_ClearLine(LCD_LINE_7);
LCD_ClearLine(LCD_LINE_8);
LCD_ClearLine(LCD_LINE_9);
/* Check if erase operation is OK */
if ((uint32_t)(*(uint32_t *)BANK1_START_ADDRESS) != 0x00)
{
/* Display information */
LCD_DisplayStringLine(LCD_LINE_6, MESSAGE15);
}
else
{
/* Display information */
LCD_DisplayStringLine(LCD_LINE_6, MESSAGE16);
}
}
/*--- If Joystick RIGHT button is pushed, program the content of address 0x08030000
(base address of Bank2) to 0x00 ---*/
if (STM_EVAL_PBGetState(BUTTON_RIGHT) == 0)
{
FLASH_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR |
FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR | FLASH_FLAG_OPTVERRUSR);
/* Erase stack pointer value at Bank 2 start address */
FLASH_ErasePage(0x08030000);
FLASH_Lock();
LCD_ClearLine(LCD_LINE_5);
LCD_ClearLine(LCD_LINE_7);
LCD_ClearLine(LCD_LINE_8);
LCD_ClearLine(LCD_LINE_9);
/* Check if erase operation is OK */
if ((uint32_t)(*(uint32_t *)BANK2_START_ADDRESS) != 0x00)
{
/* Display information */
LCD_DisplayStringLine(LCD_LINE_6, MESSAGE15);
}
else
{
/* Display information */
LCD_DisplayStringLine(LCD_LINE_6, MESSAGE16);
}
}
/*--- If Joystick UP button is pushed, copy the program to the cross bank --*/
if (STM_EVAL_PBGetState(BUTTON_SEL) == 0)
{
FLASH_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR |
FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR | FLASH_FLAG_OPTVERRUSR);
#if defined (BOOT_FROM_BANK1)
/* Erase one page in BANK2 to store the first page */
FLASH_ErasePage(0x08030000);
for(index = 0; index < 64; index++)
{
FLASH_FastProgramWord((0x08030000 + (index * 4)), (*(uint32_t *)(0x08020000 + (index * 4))));
}
#elif defined (BOOT_FROM_BANK2)
/* Erase one page in BANK1 to store the first page */
FLASH_ErasePage(0x08000000);
for(index = 0; index < 64; index++)
{
FLASH_FastProgramWord((0x08000000 + (index * 4)), (*(uint32_t *)(0x08050000 + (index * 4))));
}
#endif
}
/* Toggle LD3 */
STM_EVAL_LEDToggle(LED3);
/* Insert 50 ms delay */
Delay(5);
/* Toggle LD2 */
STM_EVAL_LEDToggle(LED2);
/* Insert 100 ms delay */
Delay(10);
}
}
/**
* @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_stm32l1xx_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32l1xx.c file
*/
/* Enable PWR APB1 Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to RTC */
PWR_RTCAccessCmd(ENABLE);
/* Reset RTC Domain */
RCC_RTCResetCmd(ENABLE);
RCC_RTCResetCmd(DISABLE);
#ifdef BOR_MODIFY
/* Get BOR Option Bytes */
BOROptionBytes = FLASH_OB_GetBOR();
if((BOROptionBytes & 0x0F) != BOR_LEVEL)
{
/* Unlocks the option bytes block access */
FLASH_OB_Unlock();
/* Clears the FLASH pending flags */
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR
| FLASH_FLAG_SIZERR | FLASH_FLAG_OPTVERR);
/* Select the desired V(BOR) Level ---------------------------------------*/
FLASH_OB_BORConfig(BOR_LEVEL);
/* Launch the option byte loading */
FLASH_OB_Launch();
}
#endif
#if defined (LP_RUN_SRAM_MODE)
/* Low Power Run Mode Entry:
- System Running at MSI (~32KHz)
- Flash 0 wait state
- Voltage Range 2
- Code running from Internal SRAM
- All peripherals OFF
- FLASH switched OFF
- VDD from 1.65V to 3.6V
- Current Consumption ~10.5uA
- Wakeup using Key Button PA.00
*/
LowPowerRunMode_Measure();
#elif defined (LP_RUN_FLASH_MODE)
/* Low Power Run Mode Entry:
- System Running at MSI (~32KHz)
- Flash 0 wait state
- Voltage Range 2
- Code running from Internal FLASH
- All peripherals OFF
- VDD from 1.65V to 3.6V
- Current Consumption ~25uA
- Wakeup using Key Button PA.00
*/
LowPowerRunMode_Measure();
#elif defined (SLEEP_MODE)
/* Sleep Mode Entry
- System Running at HSI (16MHz)
- Flash 1 wait state
- Voltage Range 2
- Code running from Internal FLASH
- Current Consumption ~1mA
- Wakeup using EXTI Line (Key Button PA.00)
*/
SleepMode_Measure();
#elif defined (LP_SLEEP_MODE)
/* Low Power Sleep Mode Entry
- System Running at MSI (~32KHz)
- Flash 0 wait state
- Voltage Range 2
- Code running from Internal FLASH
- All peripherals OFF
- VDD from 1.65V to 3.6V
- Current Consumption ~4.07uA
- Wakeup using EXTI Line (Key Button PA.00)
*/
LowPowerSleepMode_Measure();
#elif defined (STOP_MODE)
/* STOP Mode Entry
- Regulator in LP mode
- LSI, HSI and HSE OFF
- No IWDG
- Current Consumption ~0.5uA
- Wakeup using EXTI Line (Key Button PA.00)
*/
StopMode_Measure();
#elif defined (STOP_RTC_LSE_MODE)
/* STOP Mode with RTC on LSE Entry
- RTC Clocked by LSE external Clock (32.768KHz)
- Regulator in LP mode
- LSI, HSI and HSE OFF
- No IWDG
- Current Consumption ~1.6uA
- Automatic Wakeup using RTC on LSE (4s)
*/
StopRTCLSEMode_Measure();
#elif defined (STOP_RTC_LSI_MODE)
/* STOP Mode with RTC on LSI Entry
- RTC Clocked by LSI
- Regulator in LP mode
- HSI and HSE OFF
- No IWDG
- Current Consumption ~1.3uA
- Automatic Wakeup using RTC on LSI (after ~4s)
*/
StopRTCLSIMode_Measure();
#elif defined (STANDBY_MODE)
/* STANDBY Mode Entry
- IWDG and LSI OFF
- Current Consumption ~0.3uA
- Wakeup using WakeUp Pin 1 (PA.00)
*/
StandbyMode_Measure();
#elif defined (STANDBY_RTC_LSE_MODE)
/* STANDBY Mode with RTC on LSE Entry
- RTC Clocked by LSE external Clock (32.768KHz)
- IWDG and LSI OFF
- Current Consumption ~1.3uA
- Automatic Wakeup using RTC on LSE (after 4s)
*/
StandbyRTCLSEMode_Measure();
#elif defined (STANDBY_RTC_LSI_MODE)
/* STANDBY Mode with RTC on LSI Entry
- RTC Clocked by LSI
- IWDG OFF
- Current Consumption ~1.1uA
- Automatic Wakeup using RTC on LSI (after ~4s)
*/
StandbyRTCLSIMode_Measure();
#else
/* Initialize LED1 on STM32L152-EVAL board */
STM_EVAL_LEDInit(LED1);
/* Infinite loop */
while (1)
{
/* Toggle The LED1 */
STM_EVAL_LEDToggle(LED1);
/* Inserted Delay */
for(Counter = 0; Counter < 0x5FF; Counter++);
}
#endif
}
