main.c

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/* USER CODE BEGIN Header */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
 
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include <string.h>
#include "entryPointCPP.hpp"
 
/* USER CODE END Includes */
 
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
 
/* USER CODE END PTD */
 
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
 
// Uncomment to run the destructive W25QValidation suite instead of the normal
// JEDEC-ID demo. Overwrites the first sector -- see w25q_validation.hpp.
 //  #define W25Q_VALIDATION_TEST_ENABLE
 
/* USER CODE END PD */
 
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
 
/* USER CODE END PM */
 
/* Private variables ---------------------------------------------------------*/
 
QSPI_HandleTypeDef hqspi;
 
UART_HandleTypeDef huart1;
 
/* USER CODE BEGIN PV */
 
/* 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_QUADSPI_Init(void);
/* USER CODE BEGIN PFP */
 
/* USER CODE END PFP */
 
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
 
#ifdef REDIRECT_PRINTF
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
 
PUTCHAR_PROTOTYPE
{
  HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, 0xFFFF);
 
  return ch;
}
#endif
 
/* USER CODE END 0 */
 
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_QUADSPI_Init();
  /* USER CODE BEGIN 2 */
 
  printf("\x1b[2J\x1b[H");  // Clear the dumb terminal screen
  printf("Hello World!!!!!\r\n");
  printf("Project: H753_CPP_W25Q_QSPI_Flash_Read_Write_01\r\n");
  fflush(stdout);
 
 
  initW25QFlash();
  if (w25qIsReady()) {
#ifdef W25Q_VALIDATION_TEST_ENABLE
      w25qRunValidation();
#else
      uint32_t jedecId = 0;
      if (w25qReadJEDECID(&jedecId)) {
          printf("W25Q flash detected, JEDEC ID: 0x%06lX\r\n", (unsigned long)jedecId);
      } else {
          printf("W25Q flash QUADSPI read failed after Init() succeeded -- check for a loose connection\r\n");
      }
 
      // Demo: erase a sector, write a short message, read it back, and
      // confirm it round-tripped -- the actual read/write this tutorial is
      // about, as opposed to the identify-only JEDEC ID check above.
      const uint32_t demoAddr = 0x000000;
      const char demoMessage[] = "Hello from the H753, stored in W25Q flash via QSPI!";
 
      if (!w25qEraseSector(demoAddr)) {
          printf("Demo erase failed\r\n");
      } else if (!w25qWriteBuffer(demoAddr, (const uint8_t *)demoMessage, sizeof(demoMessage))) {
          printf("Demo write failed\r\n");
      } else {
          uint8_t readBack[sizeof(demoMessage)] = { 0 };
          if (!w25qReadBuffer(demoAddr, readBack, sizeof(readBack))) {
              printf("Demo read failed\r\n");
          } else {
              printf("Wrote: \"%s\"\r\n", demoMessage);
              printf("Read : \"%s\"\r\n", readBack);
              if (memcmp(demoMessage, readBack, sizeof(demoMessage)) == 0) {
                  printf("Read-back matches -- write/read round trip OK\r\n");
              } else {
                  printf("Read-back MISMATCH\r\n");
              }
          }
      }
#endif
  } else {
      printf("W25Q flash NOT detected -- check wiring\r\n");
      uint32_t rawId = 0;
      bool transferOk = w25qReadJEDECIDRaw(&rawId);
      printf("  diagnostic raw JEDEC read: transfer %s, bytes 0x%06lX\r\n",
              transferOk ? "OK" : "FAILED", (unsigned long)rawId);
  }
 
  /* USER CODE END 2 */
 
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */
 
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}
 
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
 
  HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
 
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);
 
  while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
 
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_DIV1;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = 4;
  RCC_OscInitStruct.PLL.PLLN = 60;
  RCC_OscInitStruct.PLL.PLLP = 2;
  RCC_OscInitStruct.PLL.PLLQ = 4;
  RCC_OscInitStruct.PLL.PLLR = 2;
  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_3;
  RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
  RCC_OscInitStruct.PLL.PLLFRACN = 0;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
 
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
                              |RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
  RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
 
  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
  {
    Error_Handler();
  }
}
 
static void MX_QUADSPI_Init(void)
{
 
  /* USER CODE BEGIN QUADSPI_Init 0 */
 
  /* USER CODE END QUADSPI_Init 0 */
 
  /* USER CODE BEGIN QUADSPI_Init 1 */
 
  /* USER CODE END QUADSPI_Init 1 */
  /* QUADSPI parameter configuration*/
  hqspi.Instance = QUADSPI;
  hqspi.Init.ClockPrescaler = 255;
  hqspi.Init.FifoThreshold = 1;
  hqspi.Init.SampleShifting = QSPI_SAMPLE_SHIFTING_NONE;
  hqspi.Init.FlashSize = 23;
  hqspi.Init.ChipSelectHighTime = QSPI_CS_HIGH_TIME_1_CYCLE;
  hqspi.Init.ClockMode = QSPI_CLOCK_MODE_0;
  hqspi.Init.FlashID = QSPI_FLASH_ID_1;
  hqspi.Init.DualFlash = QSPI_DUALFLASH_DISABLE;
  if (HAL_QSPI_Init(&hqspi) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN QUADSPI_Init 2 */
 
  /* USER CODE END QUADSPI_Init 2 */
 
}
 
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 = 19200;
  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 */
 
}
 
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_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOF_CLK_ENABLE();
  __HAL_RCC_GPIOH_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
 
  /*Configure GPIO pins : STLINK_RX_Pin STLINK_TX_Pin */
  GPIO_InitStruct.Pin = STLINK_RX_Pin|STLINK_TX_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
  HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
 
  /* USER CODE BEGIN MX_GPIO_Init_2 */
 
  /* USER CODE END MX_GPIO_Init_2 */
}
 
/* USER CODE BEGIN 4 */
 
 
void _Error_Handler(const char *file, int line)
{
    __disable_irq();
 
#ifdef REDIRECT_PRINTF
    char buf[80];
 
    snprintf(buf, sizeof(buf),
            "Trapped in _Error_Handler(). Called from: %s, line: %d\r\n",
            file, line);
    printf("%s", buf);
#endif
 
    /* User can add an implementation to report the HAL error return state. */
    while(1)
    {
    }
}
 
/* USER CODE END 4 */
 
 
#ifdef  USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* assert_param() can fire from inside any HAL call -- including before
   * REDIRECT_PRINTF's UART is fully set up, or from an unusual calling
   * context -- so this only attempts to report when REDIRECT_PRINTF is
   * available, then halts either way. Continuing after a failed HAL
   * parameter check is undefined behavior, not something safe to log
   * and ignore. */
  __disable_irq();
 
#ifdef REDIRECT_PRINTF
  {
    char buf[96];
 
    snprintf(buf, sizeof(buf),
             "assert_param failed: file %s, line %lu\r\n",
             (char *)file, (unsigned long)line);
    printf("%s", buf);
  }
#endif
 
  while (1)
  {
  }
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */