Posted on December 06, 2014 at 12:15
I want to be able to set RDP level from my code from 0 to 1 and backwards.
Is it possible?
After setting RDP to level 1 I am unable to set it back to 0, only through ST-Link.
Here some test code I made.
uint8_t SetRDPF4(uint8_t OB_RDP_Level)
{
FLASH_Status FLASHStatus = FLASH_COMPLETE;
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 | FLASH_FLAG_BSY);
if
(!FLASH_OB_GetRDP())
{
FLASH_OB_RDPConfig(OB_RDP_Level);
// level 0 unlocks, level 1 locks, level 2 kills chip
if
(FLASH_OB_Launch() != FLASH_COMPLETE)
{
printf
(
''\nSET OB RDP ERROR!''
);
return
1;
}
if
(OB_RDP_Level == OB_RDP_Level_0)
printf
(
''\nSet to: OB_RDP_Level_0''
);
if
(OB_RDP_Level == OB_RDP_Level_1)
printf
(
''\nSet to: OB_RDP_Level_1''
);
}
FLASH_Lock();
FLASH_OB_Lock();
return
0;
}
int
main(
void
)
{
uint8_t counter = 1;
STM_EVAL_PBInit(BUTTON_USER, BUTTON_MODE_GPIO);
if
(SysTick_Config(SystemCoreClock / 1000)){
while
(1);}
DBGU_Init();
printf
(
''\nstart''
);
while
(1){
if
((STM_EVAL_PBGetState(BUTTON_USER) == 0x01) && (counter == 0x01)){SetRDPF4(OB_RDP_Level_0); counter = 2; mdelay(500);}
//first time button press set to level 0
if
((STM_EVAL_PBGetState(BUTTON_USER) == 0x01) && (counter == 0x02)){SetRDPF4(OB_RDP_Level_1); counter = 1; mdelay(500);}
//second time button press set to level 1
}
//end of while 1
}
Thank you,
//Nikolaj
