I am trying read and write multiple file in Sd Card but not able to read multiple files

[DRath.1]

Below I am mentioned the code kindly go through it:

 if(PushButtonFlag == 1)

 {

 HAL_UART_Transmit_IT(&huart1, PushButtonPrint0, sizeof(PushButtonPrint0));

//Open file for writing (Create)

if(f_open(&SDFile, "STM32.TXT", FA_CREATE_ALWAYS | FA_WRITE ) != FR_OK)

{

HAL_UART_Transmit_IT(&huart1, Print3, sizeof(Print3));

Error_Handler();

}

else

{

HAL_UART_Transmit_IT(&huart1, Print4, sizeof(Print4));

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

//Write to the text file

res = f_write(&SDFile, wtext, strlen((char *)wtext), (void *)&byteswritten);

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

if((byteswritten == 0) || (res != FR_OK))

{

HAL_UART_Transmit_IT(&huart1, Print5, sizeof(Print5));

Error_Handler();

}

else

{

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);

f_close(&SDFile);

HAL_UART_Transmit_IT(&huart1, Print6, sizeof(Print6));

}

// f_unlink("STM32.TXT");

}

if(f_open(&SDFile, "Jeev.TXT", FA_CREATE_ALWAYS | FA_WRITE ) != FR_OK)

{

HAL_UART_Transmit_IT(&huart1, Print3, sizeof(Print3));

Error_Handler();

}

else

{

HAL_UART_Transmit_IT(&huart1, Print4, sizeof(Print4));

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

//Write to the text file

res = f_write(&SDFile, wtext, strlen((char *)wtext), (void *)&byteswritten);

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

if((byteswritten == 0) || (res != FR_OK))

{

HAL_UART_Transmit_IT(&huart1, Print5, sizeof(Print5));

Error_Handler();

}

else

{

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);

f_close(&SDFile);

HAL_UART_Transmit_IT(&huart1, Print6, sizeof(Print6));

}

//f_unlink("Jeev.TXT");

}

if(f_open(&SDFile, "Jeev2.TXT", FA_CREATE_ALWAYS | FA_WRITE ) != FR_OK)

{

HAL_UART_Transmit_IT(&huart1, Print3, sizeof(Print3));

Error_Handler();

}

else

{

HAL_UART_Transmit_IT(&huart1, Print4, sizeof(Print4));

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

//Write to the text file

res = f_write(&SDFile, wtext, strlen((char *)wtext), (void *)&byteswritten);

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

if((byteswritten == 0) || (res != FR_OK))

{

HAL_UART_Transmit_IT(&huart1, Print5, sizeof(Print5));

Error_Handler();

}

else

{

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);

f_close(&SDFile);

HAL_UART_Transmit_IT(&huart1, Print6, sizeof(Print6));

}

// f_unlink("Jeev2.TXT");

}

if(f_open(&SDFile, "Jeev3.TXT", FA_CREATE_ALWAYS | FA_WRITE ) != FR_OK)

{

HAL_UART_Transmit_IT(&huart1, Print3, sizeof(Print3));

Error_Handler();

}

else

{

HAL_UART_Transmit_IT(&huart1, Print4, sizeof(Print4));

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

//Write to the text file

res = f_write(&SDFile, wtext, strlen((char *)wtext), (void *)&byteswritten);

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

if((byteswritten == 0) || (res != FR_OK))

{

HAL_UART_Transmit_IT(&huart1, Print5, sizeof(Print5));

Error_Handler();

}

else

{

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);

f_close(&SDFile);

HAL_UART_Transmit_IT(&huart1, Print6, sizeof(Print6));

}

// f_unlink("Jeev3.TXT");

}

if(f_open(&SDFile, "Jeev4.TXT", FA_CREATE_ALWAYS | FA_WRITE ) != FR_OK)

{

HAL_UART_Transmit_IT(&huart1, Print3, sizeof(Print3));

Error_Handler();

}

else

{

HAL_UART_Transmit_IT(&huart1, Print4, sizeof(Print4));

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

//Write to the text file

res = f_write(&SDFile, wtext, strlen((char *)wtext), (void *)&byteswritten);

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

if((byteswritten == 0) || (res != FR_OK))

{

HAL_UART_Transmit_IT(&huart1, Print5, sizeof(Print5));

Error_Handler();

}

else

{

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);

f_close(&SDFile);

HAL_UART_Transmit_IT(&huart1, Print6, sizeof(Print6));

}

// f_unlink("Jeev4.TXT");

}

if(f_open(&SDFile, "Jeev.TXT", FA_READ ) != FR_OK)

{

HAL_UART_Transmit_IT(&huart1, Print3, sizeof(Print3));

Error_Handler();

}

else

{

HAL_UART_Transmit_IT(&huart1, Print4, sizeof(Print4));

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

//Write to the text file

res = f_read(&SDFile, rtext, sizeof(rtext), (void *)&bytesread);

//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);

osDelay(10);

if((bytesread == 0) || (res != FR_OK))

{

HAL_UART_Transmit_IT(&huart1, Print5, sizeof(Print5));

Error_Handler();

}

else

{

HAL_UART_Transmit (&huart1, rtext, sizeof(rtext), 10);

osDelay(10);

f_close(&SDFile);

//HAL_UART_Transmit_IT(&huart1, Print6, sizeof(Print6));

//break;

// f_unlink("Jeev.TXT");

}

}

osDelay(10);

if(f_open(&SDFile, "STM32.TXT", FA_READ ) != FR_OK)

{

HAL_UART_Transmit_IT(&huart1, Print3, sizeof(Print3));

Error_Handler();

}

else

{

HAL_UART_Transmit_IT(&huart1, Print4, sizeof(Print4));

// //Read the text file

// // memset(rtext,0,sizeof(rtext));

res = f_read(&SDFile, rtext, sizeof(rtext), (void *)&bytesread);

HAL_Delay(10);

if((bytesread == 0) || (res != FR_OK))

{

HAL_UART_Transmit_IT(&huart1, Print5, sizeof(Print5));

Error_Handler();

//break;

}

else

{

HAL_UART_Transmit (&huart1, rtext, sizeof(rtext), 10);

HAL_Delay(10);

f_close(&SDFile);

//HAL_UART_Transmit_IT(&huart1, Print6, sizeof(Print6));

break;

}

}

//  osDelay(20);

HAL_UART_Transmit_IT(&huart1, Print10, sizeof(Print10));

PushButtonFlag = 0;

 }