RomanOanny

STM32H5 RDP1 Lock

로망와니 — Fri, 8 Aug 2025 20:01:02 +0900

https://community.st.com/t5/stm32-mcus-security/stm32h503-rdp/td-p/799122

STM32H503 RDP

Hello, I am asking for help from the community. My application is completely written, but I can't set read protection. I tried to do all the steps in this guide, but it led to bricking one of my boards. The second board is still in product state = 17? but

community.st.com

void Set_ProductState_Closed(uint8_t Lock)
{
FLASH_OBProgramInitTypeDef OptionsBytesStruct;//create the OB structure
__HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST);
__HAL_RCC_CLEAR_RESET_FLAGS();
if(Lock == 1){
HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct);
HAL_FLASH_Unlock();
HAL_FLASH_OB_Unlock();
OptionsBytesStruct.ProductState = OB_PROD_STATE_IROT_PROVISIONED; // SET THE PRODUCTION STATE
HAL_FLASHEx_OBProgram(&OptionsBytesStruct);
HAL_FLASH_OB_Launch();HAL_FLASH_OB_Lock();HAL_FLASH_Lock();

HAL_FLASH_Unlock();
HAL_FLASH_OB_Unlock();
OptionsBytesStruct.ProductState = OB_PROD_STATE_CLOSED; // SET THE CLOSED STATE
HAL_FLASHEx_OBProgram(&OptionsBytesStruct);
HAL_FLASH_OB_Launch();HAL_FLASH_OB_Lock();HAL_FLASH_Lock();
NVIC_SystemReset(); // reboot for changes to take effect
}
else{
HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct);
HAL_FLASH_Unlock();
HAL_FLASH_OB_Unlock();
OptionsBytesStruct.ProductState = OB_PROD_STATE_REGRESSION;// full regression
HAL_FLASHEx_OBProgram(&OptionsBytesStruct);
HAL_FLASH_OB_Launch();HAL_FLASH_OB_Lock();HAL_FLASH_Lock();
NVIC_SystemReset();
}
}

void main(void){

....

uint32_t GetOBState = (FLASH->OPTSR_CUR & FLASH_OPTSR_PRODUCT_STATE);

DEBUGPRINT("OB Stat : %X\r\n", GetOBState);

if(0xED00 == GetOBState){
DEBUGPRINT("RDP\r\n");
Set_ProductState_Closed(1);
}

}

[STM32]OFFLINE DOWNLOADER PROGRAM

로망와니 — Mon, 12 May 2025 16:10:51 +0900

OFFLINE_DOWNLOADER_鹿小班离线下载器.exe

0.58MB

참고 링크 :

https://luckydream.tistory.com/545

[STM32H5]GENERAL TIMER VS ADVANCED TIMER

로망와니 — Wed, 19 Feb 2025 20:20:32 +0900

APP 에서 BOOT로

로망와니 — Thu, 13 Feb 2025 22:22:52 +0900

__attribute__( ( naked, noreturn ) ) void BootJumpASM( uint32_t SP, uint32_t RH )
{
  __asm("MSR      MSP,r0");
  __asm("BX       r1");
}

void BootJump(uint32_t *Address)
{
DEBUGPRINT("Boot Jump\r\n");

if( CONTROL_nPRIV_Msk & __get_CONTROL( ) ){  /* not in privileged mode */
}
// 2. NVIC 인터럽트 초기화
for (int i = 0; i < 8; i++) {
NVIC->ICER[i] = 0xFFFFFFFF;
NVIC->ICPR[i] = 0xFFFFFFFF;
}

SysTick->CTRL = 0 ;
SCB->ICSR |= SCB_ICSR_PENDSTCLR_Msk ;

SCB->SHCSR &= ~( SCB_SHCSR_USGFAULTENA_Msk | \
SCB_SHCSR_BUSFAULTENA_Msk | \
SCB_SHCSR_MEMFAULTENA_Msk ) ;

if( CONTROL_SPSEL_Msk & __get_CONTROL( ) ){  /* MSP is not active */
__set_MSP( __get_PSP( ) ) ;
__set_CONTROL( __get_CONTROL( ) & ~CONTROL_SPSEL_Msk ) ;
}

SCB->VTOR = ( uint32_t )Address ;
BootJumpASM( Address[ 0 ], Address[ 1 ] ) ;
}

void main(void)

{

BootJump( ( uint32_t * )IAP_ADDRESS ) ;

}

[ALTIUM]PCB 부품 추출

로망와니 — Sun, 22 Dec 2024 13:41:04 +0900

[STM32L031]FLASH 라이팅 문제

로망와니 — Fri, 20 Dec 2024 08:56:58 +0900

IWDG를 사용하면 FLASH 라이팅이 되지 않는 문제가 발생 아직 원인 못 찾음.

__disable_irq();를 사용하거나 __attribute__((section(".ramfunc"))) 에 올려도 동일한 증상 발생.

if(HAL_IWDG_Refresh(&IwdgHandle) != HAL_OK){;}

[ALTIUM]AUTO VIA

로망와니 — Sun, 24 Nov 2024 14:40:02 +0900

CRC 8-MAXIM, 16-ARC

로망와니 — Thu, 21 Nov 2024 17:35:24 +0900

CRC 웹 테스트 페이지 :

https://crccalc.com/?crc=123456789&method=CRC-16&datatype=0&outtype=0

Online CRC-8 CRC-16 CRC-32 Calculator

crccalc.com

https://www.lammertbies.nl/comm/info/crc-calculation

On-line CRC calculation and free library - Lammert Bies

On-line CRC calculation sheet. Free CRC routines downloadable. Covers CRC-16, CRC-32, CRC-CCITT, DNP, Sick and other routines.

www.lammertbies.nl

CRC 원본 출처 :

https://github.com/torvalds/linux/blob/master/lib/crc16.c

linux/lib/crc16.c at master · torvalds/linux

Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.

github.com

[ALTIUM] eInvalidInput 에러

로망와니 — Mon, 11 Nov 2024 10:47:17 +0900

Silk가 필요없을때는 Value를 Hidden 해야하는데 0으로 넣었더니 문제가 발생했습니다.

안녕하세요.
Altium Support 팀의 XXX입니다.

이 에러는 Track 객체 (배선, 실크 등) 또는 Arc 객체의 너비가 음수값 (-) 거나, 0인 경우 발생할 수 있습니다.
풋프린트에 포함된 실크의 Width가 음수이거나 0인지 확인해주세요.

방법은, PCB Filter로 Track 객체를 전체선택 하신 상태에서, PCB List 패널을 켜셔서 Width가 0이거나 -인 객체를 찾으셔서 수정하십니다.

이러한 객체를 수정 또는 제거 하신 후, DXF/DWG를 Export 시도 부탁드립니다.

감사합니다.. ^^

LAYER 추가하기

로망와니 — Thu, 7 Nov 2024 20:37:48 +0900