/* USER CODE BEGIN Header */
/* USER CODE END Header */

/*--------------- 
Function description: 
  PSRAM using APMemory QSPI SDR , first enter Quad mode, 
  and then read and write 16Byte in a cycle. 
  If there is an error the LED of GPIO_PIN_14 lights up.
-------------- */


/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/

/* USER CODE END Includes */
#define BUFFER_LENGTH                          16
uint8_t aTxBuffer[BUFFER_LENGTH];
uint8_t aRX_Buffer[BUFFER_LENGTH]={0};

OSPI_HandleTypeDef hospi1;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_OCTOSPI1_Init(void);
void SettingPSRAM(void);
void EnterQuadMode(void);
void Error_Handler(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

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

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
    __IO uint8_t *mem_addr;
  uint32_t address = 0;
  uint16_t index1;   /*index1 counter of bytes used when reading/writing 256 bytes buffer */
  uint16_t index2;   /*index2 counter of 256 bytes buffer used when reading/writing the 1Mbytes extended buffer */
  uint8_t WD,RD;
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();

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_OCTOSPI1_Init();
  HAL_GPIO_WritePin(GPIOG, GPIO_PIN_14|GPIO_PIN_13, GPIO_PIN_SET); /*reset the external leds (reset when GPIO is high)*/
    /*initialize refresh feature for the OCTOSPI*/
  hospi1.Init.Refresh = 500;
  if (HAL_OSPI_Init(&hospi1) != HAL_OK)
  {
    Error_Handler();
  }
  
  /* USER CODE BEGIN 2 */
 EnterQuadMode();
 SettingPSRAM();
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    for(uint8_t i=0;i<BUFFER_LENGTH;i++)
    {
	aTxBuffer[i]=i;
    }
    
/* Writing Sequence   ----------------------------------------------- */
    mem_addr = (__IO uint8_t *)(OCTOSPI1_BASE);
/* Writing  done       ---------------------------------------------- */
    for (index1 = 0; index1 < BUFFER_LENGTH; index1++)
    {
      *mem_addr = aTxBuffer[index1];
      mem_addr++;
    }
    
/* Reading Sequence ----------------------------------------------- */
    mem_addr = (__IO uint8_t *)(OCTOSPI1_BASE);
/* Reading done-----------------------------------------------------*/

    for (index1 = 0; index1 < 16; index1++)
    {
	  aRX_Buffer[index1]=*mem_addr;
      if (*mem_addr != aTxBuffer[index1])
      {
		  WD=aTxBuffer[index1];
/*Error-> toggle led here*/
        HAL_GPIO_TogglePin(GPIOG, GPIO_PIN_14);
      }
      mem_addr++;
    }
  
/*can toggle led here*/
        HAL_GPIO_TogglePin(GPIOG, GPIO_PIN_13);
    
    /* USER CODE END WHILE */
  }
}

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

  /** Configure the main internal regulator output voltage 
  */
  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
  RCC_OscInitStruct.MSIState = RCC_MSI_ON;
  RCC_OscInitStruct.MSICalibrationValue = 0;
  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
  RCC_OscInitStruct.PLL.PLLM = 1;
  RCC_OscInitStruct.PLL.PLLN = 60;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_OSPI;
  PeriphClkInit.OspiClockSelection = RCC_OSPICLKSOURCE_SYSCLK;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief OCTOSPI1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_OCTOSPI1_Init(void)
{

  /* USER CODE BEGIN OCTOSPI1_Init 0 */

  /* USER CODE END OCTOSPI1_Init 0 */

  OSPIM_CfgTypeDef OSPIM_Cfg_Struct = {0};

  /* USER CODE BEGIN OCTOSPI1_Init 1 */

  /* USER CODE END OCTOSPI1_Init 1 */
  /* OCTOSPI1 parameter configuration*/
  hospi1.Instance = OCTOSPI1;
  hospi1.Init.FifoThreshold = 1;
  hospi1.Init.DualQuad = HAL_OSPI_DUALQUAD_DISABLE;
  hospi1.Init.MemoryType = HAL_OSPI_MEMTYPE_APMEMORY;
  hospi1.Init.DeviceSize = 23;
  hospi1.Init.ChipSelectHighTime = 2;
  hospi1.Init.FreeRunningClock = HAL_OSPI_FREERUNCLK_DISABLE;
  hospi1.Init.ClockMode = HAL_OSPI_CLOCK_MODE_0;
  hospi1.Init.ClockPrescaler = 3;
  hospi1.Init.SampleShifting = HAL_OSPI_SAMPLE_SHIFTING_NONE;
  hospi1.Init.DelayHoldQuarterCycle = HAL_OSPI_DHQC_DISABLE;
  hospi1.Init.ChipSelectBoundary = 9;
  if (HAL_OSPI_Init(&hospi1) != HAL_OK)
  {
    Error_Handler();
  }
  OSPIM_Cfg_Struct.ClkPort = 1;
  OSPIM_Cfg_Struct.NCSPort = 1;
  OSPIM_Cfg_Struct.IOLowPort = HAL_OSPIM_IOPORT_1_LOW;
  if (HAL_OSPIM_Config(&hospi1, &OSPIM_Cfg_Struct, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN OCTOSPI1_Init 2 */

  /* USER CODE END OCTOSPI1_Init 2 */

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  
  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOE_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOG_CLK_ENABLE();
    HAL_PWREx_EnableVddIO2();
      /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOG, GPIO_PIN_14|GPIO_PIN_13, GPIO_PIN_RESET);

  /*Configure GPIO pins : PG14 PG13 */
  GPIO_InitStruct.Pin = GPIO_PIN_14|GPIO_PIN_13;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
}

/* USER CODE BEGIN 4 */


void SettingPSRAM(void)
{
      OSPI_RegularCmdTypeDef sCommand;
      OSPI_MemoryMappedTypeDef sMemMappedCfg;

      
      sCommand.FlashId            = HAL_OSPI_FLASH_ID_1;
      sCommand.InstructionMode    = HAL_OSPI_INSTRUCTION_4_LINES;
      sCommand.InstructionSize    = HAL_OSPI_INSTRUCTION_8_BITS;
      sCommand.InstructionDtrMode = HAL_OSPI_INSTRUCTION_DTR_DISABLE;
      sCommand.AddressMode        = HAL_OSPI_ADDRESS_4_LINES;
      sCommand.AddressSize        = HAL_OSPI_ADDRESS_24_BITS;
      sCommand.AddressDtrMode     = HAL_OSPI_ADDRESS_DTR_DISABLE;
      sCommand.AlternateBytesMode = HAL_OSPI_ALTERNATE_BYTES_NONE;
      sCommand.DataMode           = HAL_OSPI_DATA_4_LINES;
      sCommand.DataDtrMode        = HAL_OSPI_DATA_DTR_DISABLE;
      sCommand.SIOOMode           = HAL_OSPI_SIOO_INST_EVERY_CMD;
      sCommand.Address            = 0;
      sCommand.NbData             = 1;

      /* Memory configuration for Linear burst read operations */      
      sCommand.OperationType = HAL_OSPI_OPTYPE_READ_CFG;
      sCommand.Instruction   = FAST_READ_QUAD;
      sCommand.DummyCycles   = 6;

            
      if (HAL_OSPI_Command(&hospi1, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
      {
       Error_Handler();
      }
     
      /* Memory configuration for Linear burst write operations */
      sCommand.OperationType = HAL_OSPI_OPTYPE_WRITE_CFG;
      sCommand.Instruction   = QUAD_WRITE;
      sCommand.DummyCycles   = 0; 
      sCommand.DQSMode       = HAL_OSPI_DQS_ENABLE;
    
      if (HAL_OSPI_Command(&hospi1, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
      {
       Error_Handler();
      }

      /*Disable timeout counter for memory mapped mode*/      
      sMemMappedCfg.TimeOutActivation = HAL_OSPI_TIMEOUT_COUNTER_DISABLE;

      /*Enable memory mode*/      
      if (HAL_OSPI_MemoryMapped(&hospi1, &sMemMappedCfg) != HAL_OK)
      {
       Error_Handler();
      }            
}

void EnterQuadMode(void)
{
  OSPI_RegularCmdTypeDef sCommand;
     
sCommand.OperationType = HAL_OSPI_OPTYPE_COMMON_CFG;
sCommand.FlashId = HAL_OSPI_FLASH_ID_1;
sCommand.Instruction = ENTER_QUAD_MODE;
sCommand.InstructionMode = HAL_OSPI_INSTRUCTION_1_LINE;
sCommand.InstructionSize = HAL_OSPI_INSTRUCTION_8_BITS;
sCommand.InstructionDtrMode = HAL_OSPI_INSTRUCTION_DTR_DISABLE;
sCommand.AddressMode = HAL_OSPI_ADDRESS_NONE;
sCommand.AlternateBytesMode = HAL_OSPI_ALTERNATE_BYTES_NONE;
sCommand.DataMode = HAL_OSPI_DATA_NONE;
sCommand.DummyCycles = 0;
sCommand.DQSMode = HAL_OSPI_DQS_DISABLE;
sCommand.SIOOMode = HAL_OSPI_SIOO_INST_EVERY_CMD;
/*Enter QUAD mode*/
if (HAL_OSPI_Command(&hospi1, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
{
Error_Handler();
}
}


/* 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 */

  /* 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(char *file, uint32_t line)
{ 
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/