/*******************************************************************************************************
*
* 函数名称:
*
* 函数功能:
*
* 入口参数:
*
* 出口参数: 无
*
* 说明:
*
*******************************************************************************************************/
void FlashWRDPUnlock(void)
{
uint32_t rt;
FlagStatus RDP_state;
FLASH_Status Flash_state;
uint32_t optcr_byte;
//如果匹配，进行Flash的读写解锁
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_OPERR|FLASH_FLAG_WRPERR| FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
FLASH_Unlock();
FLASH_OB_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_OPERR|FLASH_FLAG_WRPERR| FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
rt = FLASH_OB_GetWRP();
do
{
//FlashWRPLock(WRITE, WRP_Sector_All);
FLASH_OB_WRPConfig(WRP_Sector_All, DISABLE); //开启写保护
}while(FLASH_OB_Launch() != FLASH_COMPLETE);
rt = FLASH_OB_GetWRP();
RDP_state = FLASH_OB_GetRDP();
do
{
FLASH_OB_RDPConfig(OB_RDP_Level_0);//关闭读保护
}while(FLASH_OB_Launch() != FLASH_COMPLETE);
RDP_state = FLASH_OB_GetRDP();
FLASH_OB_Lock();
FLASH_Lock();
}
OSStatus internalFlashProtect(uint32_t StartAddress, uint32_t EndAddress, bool enable)
{
OSStatus err = kNoErr;
uint16_t WRP = 0x0;
uint32_t StartSector, EndSector, i = 0;
bool needupdate = false;
/* Get the sector where start the user flash area */
StartSector = _GetWRPSector(StartAddress);
EndSector = _GetWRPSector(EndAddress);
for(i = StartSector; i <= EndSector; i=i<<1)
{
WRP = FLASH_OB_GetWRP();
if( ( enable == true && (WRP & i) == 0x0 ) ||
( enable == false && (WRP & i) ) ) {
continue;
}
if( needupdate == false){
FLASH_OB_Unlock( );
needupdate = true;
}
if( enable == true )
FLASH_OB_WRPConfig( i, ENABLE );
else
FLASH_OB_WRPConfig( i, DISABLE );
}
if( needupdate == true){
FLASH_OB_Launch( );
FLASH_OB_Lock( );
}
return err;
}
/*******************************************************************************************************
*
* 函数名称:
*
* 函数功能:
*
* 入口参数:
*
* 出口参数: 无
*
* 说明:
*
*******************************************************************************************************/
void FlashWRPUnlock(uint8_t sector_num)
{
//FLASH_Unlock();
FLASH_OB_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_OPERR|FLASH_FLAG_WRPERR| FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
if(!(FLASH_OB_GetWRP() & (0x1<<sector_num)))
{
FLASH_OB_WRPConfig((0x1<<sector_num), DISABLE); //开启写保护
}
FLASH_OB_Lock();
//FLASH_Lock();
}
void FlashWRP(void)
{
uint32_t rt;
FlagStatus RDP_state;
FLASH_Unlock();
FLASH_OB_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_OPERR|FLASH_FLAG_WRPERR| FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
RDP_state = FLASH_OB_GetRDP();
rt = FLASH_OB_GetWRP();
do
{
FLASH_OB_WRPConfig(WRP_Sector_All, ENABLE); //开启写保护
}while(FLASH_OB_Launch() != FLASH_COMPLETE);
rt = FLASH_OB_GetWRP();
FLASH_OB_Lock();
FLASH_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_stm32f40xx.s/startup_stm32f427x.s) before to branch to
application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* Initialize LEDs mounted on EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* 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 FLASH_WRP_SECTORS write protection status */
SectorsWRPStatus = FLASH_OB_GetWRP() & FLASH_WRP_SECTORS;
if (SectorsWRPStatus == 0x00)
{
/* If FLASH_WRP_SECTORS are write protected, disable the write protection */
/* Enable the Flash option control register access */
FLASH_OB_Unlock();
/* Disable FLASH_WRP_SECTORS write protection */
FLASH_OB_WRPConfig(FLASH_WRP_SECTORS, DISABLE);
/* Start the Option Bytes programming process */
if (FLASH_OB_Launch() != FLASH_COMPLETE)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
FLASH_OB_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
SectorsWRPStatus = FLASH_OB_GetWRP() & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS write protection is disabled */
if (SectorsWRPStatus == FLASH_WRP_SECTORS)
{
/* OK, turn ON LED1 */
STM_EVAL_LEDOn(LED1);
}
else
{
/* KO, turn ON LED3 */
STM_EVAL_LEDOn(LED3);
}
}
else
{ /* If FLASH_WRP_SECTORS are not write protected, enable the write protection */
/* Enable the Flash option control register access */
FLASH_OB_Unlock();
/* Enable FLASH_WRP_SECTORS write protection */
FLASH_OB_WRPConfig(FLASH_WRP_SECTORS, ENABLE);
/* Start the Option Bytes programming process */
if (FLASH_OB_Launch() != FLASH_COMPLETE)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
FLASH_OB_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
SectorsWRPStatus = FLASH_OB_GetWRP() & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS are write protected */
if (SectorsWRPStatus == 0x00)
{
/* OK, turn ON LED4 */
STM_EVAL_LEDOn(LED4);
}
else
{
/* KO, turn ON LED3 */
STM_EVAL_LEDOn(LED3);
}
}
}
/* Turn ON LED2 */
STM_EVAL_LEDOn(LED2);
while (1)
{
}
}
/*******************************************************************************************************
*
* 函数名称:
*
* 函数功能:
*
* 入口参数:
*
* 出口参数: 无
*
* 说明:
*
*******************************************************************************************************/
int16_t DataAreaWRPUnlock(COMM_FRAME *pcf)
{
uint32_t wrp_state;
uint8_t rv_comm_buff[20];
uint16_t wrp_unlock_param[2];
uint8_t i;
uint8_t rt;
uint8_t buff[20];
FlagStatus RDP_state;
wrp_unlock_param[0] = MAKE_HWORD((pcf)->param[2], (pcf)->param[1]);
wrp_unlock_param[1] = MAKE_HWORD((pcf)->param[4], (pcf)->param[3]);
//加锁命令序列
for(i = 0; i < pcf->len - 5; i++)
{
rv_comm_buff[i] = pcf->param[5 + i];
}
//匹配加锁命令序列
rt = MemoryCmp(rv_comm_buff, UnlockBuff, sizeof(UnlockBuff));
if(rt)
{
//如果匹配，进行Flash的读写解锁
FLASH_Unlock();
FLASH_OB_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_OPERR|FLASH_FLAG_WRPERR| FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
wrp_state = FLASH_OB_GetWRP();
if(!wrp_state)
{
do
{
FLASH_OB_WRPConfig(WRP_Sector_All, DISABLE); //关闭写保护
}while(FLASH_OB_Launch() != FLASH_COMPLETE);
buff[1] = 0;
}
else
{
buff[1] = 1;
}
//发送扇区擦除错误
buff[0] = FLASH_WRP_UNLOCK_CW;
SendFrame(UNIVER_ACK_CW, (uint8_t *)buff, 4); //2即2个字节,16bit
__disable_irq();
if(FLASH_OB_GetRDP() == SET)
{
do
{
FLASH_OB_RDPConfig(OB_RDP_Level_0);//关闭读保护
}while(FLASH_OB_Launch() != FLASH_COMPLETE);
}
else
{
buff[0] = FLASH_WRP_UNLOCK_CW;
buff[1] = 1;
SendFrame(UNIVER_ACK_CW, (uint8_t *)buff, 4); //2即2个字节,16bit
}
//解锁之后Flash全部擦除,RAM调试会执行到下面的程序
__enable_irq();
RDP_state = FLASH_OB_GetRDP();
FLASH_OB_Lock();
FLASH_Lock();
}
return 1;
}
/**
* @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_stm32f429_439xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* LCD initiatization */
LCD_Init();
LCD_LayerInit();
/* LTDC reload configuration */
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable the LTDC */
LTDC_Cmd(ENABLE);
/* Set LCD foreground layer */
LCD_SetLayer(LCD_FOREGROUND_LAYER);
/* Initialize LEDs mounted on STM32F429I-DISCO */
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Initialize User Button mounted on STM32F429I-DISCO */
STM_EVAL_PBInit(BUTTON_USER, BUTTON_MODE_GPIO);
/* Display tset name on LCD */
LCD_Clear(LCD_COLOR_WHITE);
LCD_SetBackColor(LCD_COLOR_BLUE);
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_4,(uint8_t*)" Flash Write ");
LCD_DisplayStringLine(LCD_LINE_5,(uint8_t*)"protection test");
LCD_DisplayStringLine(LCD_LINE_7,(uint8_t*)" Press User ");
LCD_DisplayStringLine(LCD_LINE_8,(uint8_t*)" push-button ");
while (1)
{
/* Wait for User push-button is pressed */
while (STM_EVAL_PBGetState(BUTTON_USER) != Bit_RESET)
{
}
/* Wait for User push-button is released */
while (STM_EVAL_PBGetState(BUTTON_USER) != Bit_SET)
{
}
/* Get FLASH_WRP_SECTORS write protection status */
SectorsWRPStatus = FLASH_OB_GetWRP() & FLASH_WRP_SECTORS;
if (SectorsWRPStatus == 0x00)
{
/* If FLASH_WRP_SECTORS are write protected, disable the write protection */
/* Enable the Flash option control register access */
FLASH_OB_Unlock();
/* Disable FLASH_WRP_SECTORS write protection */
FLASH_OB_WRPConfig(FLASH_WRP_SECTORS, DISABLE);
/* Start the Option Bytes programming process */
if (FLASH_OB_Launch() != FLASH_COMPLETE)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
FLASH_OB_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
SectorsWRPStatus = FLASH_OB_GetWRP() & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS write protection is disabled */
if (SectorsWRPStatus == FLASH_WRP_SECTORS)
{
LCD_Clear(LCD_COLOR_GREEN);
LCD_SetTextColor(LCD_COLOR_BLACK);
LCD_DisplayStringLine(LCD_LINE_5,(uint8_t*)" Write ");
LCD_DisplayStringLine(LCD_LINE_6,(uint8_t*)" protection is ");
LCD_DisplayStringLine(LCD_LINE_7,(uint8_t*)" disabled ");
}
else
{
LCD_Clear(LCD_COLOR_RED);
LCD_SetTextColor(LCD_COLOR_BLACK);
LCD_DisplayStringLine(LCD_LINE_5,(uint8_t*)" Write ");
LCD_DisplayStringLine(LCD_LINE_6,(uint8_t*)" protection is ");
LCD_DisplayStringLine(LCD_LINE_7,(uint8_t*)" not disabled ");
}
}
else
{ /* If FLASH_WRP_SECTORS are not write protected, enable the write protection */
/* Enable the Flash option control register access */
FLASH_OB_Unlock();
/* Enable FLASH_WRP_SECTORS write protection */
FLASH_OB_WRPConfig(FLASH_WRP_SECTORS, ENABLE);
/* Start the Option Bytes programming process */
if (FLASH_OB_Launch() != FLASH_COMPLETE)
{
/* User can add here some code to deal with this error */
while (1)
{
}
}
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
FLASH_OB_Lock();
/* Get FLASH_WRP_SECTORS write protection status */
SectorsWRPStatus = FLASH_OB_GetWRP() & FLASH_WRP_SECTORS;
/* Check if FLASH_WRP_SECTORS are write protected */
if (SectorsWRPStatus == 0x00)
{
LCD_Clear(LCD_COLOR_GREEN);
LCD_SetTextColor(LCD_COLOR_BLACK);
LCD_DisplayStringLine(LCD_LINE_5,(uint8_t*)" Write ");
LCD_DisplayStringLine(LCD_LINE_6,(uint8_t*)" protection is ");
LCD_DisplayStringLine(LCD_LINE_7,(uint8_t*)" enabled ");
}
else
{
LCD_Clear(LCD_COLOR_RED);
LCD_SetTextColor(LCD_COLOR_BLACK);
LCD_DisplayStringLine(LCD_LINE_5,(uint8_t*)" Write ");
LCD_DisplayStringLine(LCD_LINE_6,(uint8_t*)" protection is ");
LCD_DisplayStringLine(LCD_LINE_7,(uint8_t*)" not enabled ");
}
}
}
}
