HardFault_Handler() at stm32l0xx_it.c:85 0x80008b4

[NOVAL_______BOBY]

MX_GPIO_Init();

MX_SPI2_Init();

MX_USART2_UART_Init();

MX_FATFS_Init();

/* USER CODE BEGIN 2 */

W25Qxxx_Init();

fres = f_mount(&fs,"0:",1);

if(fres == FR_OK)

{

v=9;

fres = f_open(&fp, "info.txt", FA_OPEN_ALWAYS|FA_WRITE);

}

else

{

v=2;

}

trying to use spi flash using fatfs .
but occur hardfault handler when calling fopen . i am not sure whether it is from fopen or not.

[SofLit · Accepted solution]

Hello @NOVAL_______BOBY and welcome to the community,

Need to validate your read / write operation to the SPI Flash memory "W25Qxxx" before implementing FatFs on it.

[NOVAL_______BOBY]

tried read and write operations worked successfuly but when i try this again 

fres = f_mkfs("0:", FM_FAT, 0, worK, sizeof(worK));

fres = f_mount(&fs,"0:",1);

if(fres == FR_OK) {

v=9;

fres = f_open(&fp, "info.txt", FA_OPEN_ALWAYS|FA_WRITE);

}

else {

v=fres;

}
i got
HardFault_Handler() at stm32l0xx_it.c:85 0x80008b4

Thread #1 [main] 1 [core: 0] (Suspended : Signal : SIGTRAP:Trace/breakpoint trap)

HardFault_Handler() at stm32l0xx_it.c:85 0x80008d8

<signal handler called>() at 0xfffffff9

HAL_SPI_TransmitReceive() at stm32l0xx_hal_spi.c:1,308 0x8003128

HAL_SPI_Receive() at stm32l0xx_hal_spi.c:979 0x8002ca4

W25Qxxx_ReadPage() at w25q32.c:800 0x80010a8

W25Qxxx_ReadSector() at w25q32.c:839 0x8001160

W25Qxxx_diskio_read() at w25q32.c:974 0x8001250

disk_read() at diskio.c:122 0x800406c

move_window() at ff.c:925 0x80045fe

check_fs() at ff.c:2,971 0x80053f8

<...more frames...>

what should be reason any idea??

[NOVAL_______BOBY]

Duplicate - merged.

---

tried read and write operations worked successfully but when i try this again 

fres = f_mkfs("0:", FM_FAT, 0, worK, sizeof(worK));
fres = f_mount(&fs,"0:",1);
if(fres == FR_OK) {
  v=9;
  fres = f_open(&fp, "info.txt", FA_OPEN_ALWAYS|FA_WRITE);
}
else {
  v=fres;
}

i got

HardFault_Handler() at stm32l0xx_it.c:85 0x80008b4

Thread #1 [main] 1 [core: 0] (Suspended : Signal : SIGTRAP:Trace/breakpoint trap)
HardFault_Handler() at stm32l0xx_it.c:85 0x80008d8
() at 0xfffffff9
HAL_SPI_TransmitReceive() at stm32l0xx_hal_spi.c:1,308 0x8003128
HAL_SPI_Receive() at stm32l0xx_hal_spi.c:979 0x8002ca4
W25Qxxx_ReadPage() at w25q32.c:800 0x80010a8
W25Qxxx_ReadSector() at w25q32.c:839 0x8001160
W25Qxxx_diskio_read() at w25q32.c:974 0x8001250
disk_read() at diskio.c:122 0x800406c
move_window() at ff.c:925 0x80045fe
check_fs() at ff.c:2,971 0x80053f8
<...more frames...>

what should be reason any idea??

---

Post edited to format code - please see this for posting source code, and this for other "formatted" text.

[SofLit]

It's hard to tell:

See "How to debug a HardFault on an Arm Cortex®-M STM32"