Question
STM32U0_OTA mode
/* 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 */