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STM32U0_OTA mode

sreedharan1196
Associate II

‎2024-08-14 11:37 PM 

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<stdint.h>

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#define GETCHAR_PROTOTYPE int __io_getchar(void)

#define FLASH_PART1 0x08000000
#define FLASH_PART2 0x08020000

#define BUFFER_SIZE 15354

char rx_data[BUFFER_SIZE];

typedef void (*pFunction)(void);

int fileSize = 0;

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

UART_HandleTypeDef huart1;
UART_HandleTypeDef huart3;

/* USER CODE BEGIN PV */

PUTCHAR_PROTOTYPE
{
    HAL_UART_Transmit(&huart3, (uint8_t *)&ch, 1, HAL_MAX_DELAY);
    return ch;
}

GETCHAR_PROTOTYPE
{
    uint8_t ch = 0;
    __HAL_UART_CLEAR_OREFLAG(&huart3);
    HAL_UART_Receive(&huart3, (uint8_t *)&ch, 1, HAL_MAX_DELAY);
    return ch;
}

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART1_UART_Init(void);
static void MX_USART3_UART_Init(void);
static void MX_FLASH_Init(void);
/* USER CODE BEGIN PFP */



/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */


void Enable_Sections(void)
{

    printf("FP N-Channel Enabled.....\r\n");
    HAL_GPIO_WritePin(GPIOD, FP_NCH_Pin,GPIO_PIN_SET);
    HAL_Delay(1000);

    printf("Mic P-Channel Enabled.....\r\n");
    HAL_GPIO_WritePin(GPIOD, MIC_PCH_Pin ,GPIO_PIN_SET);
    HAL_Delay(1000);

    printf("Mic N-Channel Enbaled....\r\n");
    HAL_GPIO_WritePin(GPIOD, MIC_NCH_Pin,GPIO_PIN_SET);
    HAL_Delay(1000);

    printf("Power key enabled.....\r\n");
    HAL_GPIO_WritePin(GPIOD, PWR_KEY_Pin,GPIO_PIN_SET);
    HAL_Delay(1000);

    printf("SIM Enbaled....\r\n");
    HAL_GPIO_WritePin(GPIOD, SIM_EN_Pin, GPIO_PIN_SET);
    HAL_Delay(1000);

    printf("Power key enabled.....\r\n");
    HAL_GPIO_WritePin(GPIOD, PWR_KEY_Pin,GPIO_PIN_RESET);
    HAL_Delay(1000);

    printf("Initializing HTTP connection...\r\n");
    HAL_Delay(10000);

}

void Disable_Sections()
{
    printf("FP N-Channel disabled.....\r\n");
    HAL_GPIO_WritePin(GPIOD, FP_NCH_Pin,GPIO_PIN_RESET);
    HAL_Delay(2000);

    printf("Mic P-Channel disabled.....\r\n");
    HAL_GPIO_WritePin(GPIOD, MIC_PCH_Pin ,GPIO_PIN_RESET);
    HAL_Delay(500);

    printf("Mic N-Channel disabled....\r\n");
    HAL_GPIO_WritePin(GPIOD, MIC_NCH_Pin,GPIO_PIN_RESET);
    HAL_Delay(2000);

    printf("SIM disabaled....\r\n");
    HAL_GPIO_WritePin(GPIOD, SIM_EN_Pin, GPIO_PIN_RESET);
    HAL_Delay(500);

}

void Clear_UART_Buffer(UART_HandleTypeDef *huart)
{
    __HAL_UART_FLUSH_DRREGISTER(huart);
    while(__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE))
    {
        (void)(huart->Instance->RDR & (uint8_t)0x00FF);
    }
    __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_RXNE);
    __HAL_UART_CLEAR_OREFLAG(huart);
}

void parseCmd(char *command, int delay, char *rx_data)
{
    char rxdata[BUFFER_SIZE];
    memset(rxdata, 0, sizeof(rxdata));

    HAL_UART_Transmit(&huart1, (uint8_t*)command, strlen(command), delay);

    HAL_UART_Receive(&huart1, (uint8_t*)rxdata, BUFFER_SIZE, delay);

    memcpy(rx_data, rxdata, sizeof(rxdata));

    HAL_UART_Transmit(&huart3, (uint8_t*)rxdata, sizeof(rxdata), 1000);

    Clear_UART_Buffer(&huart1);
    Clear_UART_Buffer(&huart3);
}

uint32_t WriteToFlash(uint32_t startAddress, uint8_t *data, uint32_t dataSize)
{
    printf("\n\nWriting to Flash...\r\n");

    uint32_t newAddress = startAddress;

    if(startAddress == FLASH_PART2 )
    {
    	printf("\n\nEnter\n\n");
    data +=10;          // Skip the first 10 bytes
    dataSize -=10;      // Reduce the size by 10 bytes
    }
    else
    {
    	printf("\n\nnew......\n\n");
    	data += 3;
    	dataSize -= 3;
    }

    // Ensure the starting address is aligned to 8 bytes
    if (startAddress % 8 != 0)
    {
        startAddress += 8 - (startAddress % 8);
        data += 8 - (startAddress % 8);
        dataSize -= 8 - (startAddress % 8);
    }

    HAL_FLASH_Unlock();
    printf("Flash unlocked.\r\n");
    HAL_Delay(100);

    // Program the user Flash area double word by double word
    for (uint32_t i = 0; i < dataSize; i += 8)
    {
        uint64_t dataToWrite = 0;

        // Copy 8 bytes of data or less if at the end of data
        if (i + 8 <= dataSize)
        {
            memcpy(&dataToWrite, data + i, 8);
        }
        else
        {
            memcpy(&dataToWrite, data + i, dataSize - i);
        }

        if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, startAddress + i, dataToWrite) != HAL_OK)
        {
            printf("Flash programming failed at address 0x%08X\r\n", startAddress + i);
            HAL_FLASH_Lock();
            return newAddress;
        }
        else
        {
            printf("Data written to address 0x%08X\r\n", startAddress + i);
            newAddress = startAddress + i;
        }

        uint64_t readBackData = *(volatile uint64_t *)(startAddress + i);
        if (readBackData != dataToWrite)
        {
            printf("Flash verification failed at address 0x%08X. Expected: 0x%016llX, Found: 0x%016llX\r\n", startAddress + i, dataToWrite, readBackData);
            HAL_FLASH_Lock();
            return;
        }
    }

    HAL_FLASH_Lock();
    printf("Flash locked.\r\n");
    printf("Writing to Flash completed successfully.\r\n");

    return newAddress;
}

void DownloadFile(void)
{
    printf("Entering Download mode...\r\n");
    HAL_Delay(5000);

    char ATcommand[512];
    const char *host = "104.237.9.39";
    char DeviceID[] = "Zenner";
    char bin[256];
    snprintf(bin, sizeof(bin), "test/%s.bin", DeviceID);
    const int port = 80;

    printf("The bin : %s\r\n", bin);

    parseCmd("AT\r\n", 2000, rx_data);
    parseCmd("ATE0\r\n", 2000, rx_data);

    snprintf(ATcommand, sizeof(ATcommand), "AT+QHTTPURL=%d,80\r\n", snprintf(NULL, 0, "http://%s:%d/%s", host, port, bin));
    parseCmd(ATcommand, 10000, rx_data);

    snprintf(ATcommand, sizeof(ATcommand), "http://%s:%d/%s\r\n", host, port, bin);
    parseCmd(ATcommand, 10000, rx_data);

    parseCmd("AT+QHTTPGET=60\r\n", 10000, rx_data);

    uint32_t fileSize = 0;
    char *sizeStart = strstr(rx_data, "+QHTTPGET: 0,200,");
    if (sizeStart)
    {
        sizeStart += strlen("+QHTTPGET: 0,200,");

        if (sscanf(sizeStart, "%u", &fileSize) == 1)
        {
            printf("File size: %u bytes\r\n", fileSize);
        }
        else
        {
            printf("Failed to extract file size. Response: %s\r\n", rx_data);
            return;
        }
    }
    else
    {
        printf("Failed to find file size in response.\r\n");
        return;
    }

    uint32_t flashAddress = FLASH_PART2;
    FLASH_EraseInitTypeDef EraseInitStruct;
    uint32_t PageError = 0;
    EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES;
    EraseInitStruct.Page = (flashAddress - FLASH_BASE) / FLASH_PAGE_SIZE;
    EraseInitStruct.NbPages = (fileSize + FLASH_PAGE_SIZE - 1) / FLASH_PAGE_SIZE;

    if (HAL_FLASHEx_Erase(&EraseInitStruct, &PageError) != HAL_OK)
    {
        printf("Flash erase failed at page %lu. Error code: %lu\r\n", EraseInitStruct.Page, PageError);
        HAL_FLASH_Lock();
        return;
    }
    else
    {
        printf("Flash erase completed.\r\n");
    }

    uint32_t remainingSize = fileSize;
    uint32_t new_data = 1;

    while (remainingSize > 0)
    {

    	printf("\n\n\n");
        uint32_t chunkSize = (remainingSize > BUFFER_SIZE) ? BUFFER_SIZE : remainingSize;

        snprintf(ATcommand, sizeof(ATcommand), "AT+QHTTPGETEX=60,%u,%u\r\n",new_data,chunkSize);
        parseCmd(ATcommand, 10000, rx_data);

        memset(rx_data, 0, sizeof(rx_data));

        parseCmd("AT+QHTTPREAD=80\r\n",10000,rx_data);
        printf("\n\n\n");

        new_data = new_data + chunkSize-11;
        remainingSize -= chunkSize;

        if (strstr(rx_data, "+QHTTPREAD: 0") != NULL)
        {
            printf("\n\nDownload completed or no more data.\r\n");
            break;
        }
        else if (strstr(rx_data, "ERROR") != NULL)
        {
            printf("\n\nError on downloading the message.\r\n");
            break;
        }

        uint32_t newAddress = WriteToFlash(flashAddress,rx_data,chunkSize);
        flashAddress = newAddress + 1;
        memset(rx_data, 0, sizeof(rx_data));

        printf("Flash New address     :    0x%08X\r\n", newAddress);
        printf("Flash address         :    0x%08X\r\n", flashAddress);
    }
}


void jumpToApplication(uint32_t address)
{
    printf("Entered jump...\r\n");
    printf("Jumping to address: 0x%08X\r\n", address);
    typedef void (*pFunction)(void);

    __disable_irq();

    pFunction jumpToApp;
    SCB->VTOR = address;

    uint32_t stackPointer = *(volatile uint32_t *)address;
    printf("Setting stack pointer to: 0x%08X\r\n", stackPointer);
    // Set stack pointer
    __set_MSP(*(volatile uint32_t *)address);

    void (*appResetHandler)(void) = (void (*)(void))(*(volatile uint32_t*)(address + 4));

    // Get application entry point
    jumpToApp = (pFunction)(*(volatile uint32_t *)(address + 4));
    printf("Application entry point: 0x%08X\r\n", (uint32_t)jumpToApp);

    appResetHandler();

    printf("Enter to deint....\r\n");

    HAL_DeInit();

    // Jump to application
    jumpToApp();
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART1_UART_Init();
  MX_USART3_UART_Init();
  MX_FLASH_Init();
  /* USER CODE BEGIN 2 */

  printf("Welcome to stm32.....\r\n");
  HAL_Delay(2000);


  Enable_Sections();

  DownloadFile();

  HAL_Delay(2000);

  Disable_Sections();

  jumpToApplication(FLASH_PART2);

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE2);

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief FLASH Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_FLASH_Init(void)
{

  /* USER CODE BEGIN FLASH_Init 0 */

  /* USER CODE END FLASH_Init 0 */

  /* USER CODE BEGIN FLASH_Init 1 */

  /* USER CODE END FLASH_Init 1 */
  if (HAL_FLASH_Unlock() != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_FLASH_Lock() != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN FLASH_Init 2 */

  /* USER CODE END FLASH_Init 2 */

}

/**
  * @brief USART1 Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_USART1_UART_Init(void)
{

  /* USER CODE BEGIN USART1_Init 0 */

  /* USER CODE END USART1_Init 0 */

  /* USER CODE BEGIN USART1_Init 1 */

  /* USER CODE END USART1_Init 1 */
  huart1.Instance = USART1;
  huart1.Init.BaudRate = 115200;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
  huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART1_Init 2 */

  /* USER CODE END USART1_Init 2 */

}

/**
  * @brief USART3 Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_USART3_UART_Init(void)
{

  /* USER CODE BEGIN USART3_Init 0 */

  /* USER CODE END USART3_Init 0 */

  /* USER CODE BEGIN USART3_Init 1 */

  /* USER CODE END USART3_Init 1 */
  huart3.Instance = USART3;
  huart3.Init.BaudRate = 115200;
  huart3.Init.WordLength = UART_WORDLENGTH_8B;
  huart3.Init.StopBits = UART_STOPBITS_1;
  huart3.Init.Parity = UART_PARITY_NONE;
  huart3.Init.Mode = UART_MODE_TX_RX;
  huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart3.Init.OverSampling = UART_OVERSAMPLING_16;
  huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart3.Init.ClockPrescaler = UART_PRESCALER_DIV1;
  huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart3) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetTxFifoThreshold(&huart3, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetRxFifoThreshold(&huart3, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_DisableFifoMode(&huart3) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART3_Init 2 */

  /* USER CODE END USART3_Init 2 */

}

/**
  * @brief GPIO Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOD, PWR_KEY_Pin|MIC_PCH_Pin|SIM_EN_Pin|MIC_NCH_Pin
                          |FP_NCH_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pins : PWR_KEY_Pin MIC_PCH_Pin SIM_EN_Pin MIC_NCH_Pin
                           FP_NCH_Pin */
  GPIO_InitStruct.Pin = PWR_KEY_Pin|MIC_PCH_Pin|SIM_EN_Pin|MIC_NCH_Pin
                          |FP_NCH_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @PAram  file: pointer to the source file name
  * @PAram  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
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1 REPLY 1
sreedharan1196
Associate II

‎2024-08-14 11:40 PM

i am working on ota mode like stm32 with ec200 module, inneed to run the ota mode on stm32u083mct6 by partition the flash memory when i try to run the another firmware on partition 2 by jumping to it the firmware in partition 2 is not running when i try to reset jump parttion 1 its running , what is ths issues i am facing her

 

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