/**
  ******************************************************************************
  * @file    main.c
  * @author  Milandr Application Team
  * @version V2.0.3
  * @date    22/06/2023
  * @brief   Main program body.
  ******************************************************************************
  * <br><br>
  *
  * THE PRESENT FIRMWARE IS FOR GUIDANCE ONLY. IT AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING MILANDR'S PRODUCTS IN ORDER TO FACILITATE
  * THE USE AND SAVE TIME. MILANDR SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES RESULTING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR A USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2026 Milandr</center></h2>
  */

/* Includes ------------------------------------------------------------------*/
#include "MDR32F9Qx_eeprom.h"
#include "MDR32F9Qx_port.h"
#include "MDR32F9Qx_rst_clk.h"

/** @addtogroup __MDR32Fx_StdPeriph_Examples MDR32Fx StdPeriph Examples
  * @{
  */

/** @addtogroup __MDR1986VE3_EVAL MDR1986VE3 Evaluation Board
  * @{
  */

/** @addtogroup EEPROM_Code_in_RAM_3T EEPROM_Code_in_RAM
  * @{
  */

/* Private variables ---------------------------------------------------------*/
static PORT_InitTypeDef PORT_InitStructure;

/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Pseudo random function.
  * @param  addr: 32-bit encoded value.
  * @retval 32-bit encoder result.
  */
uint32_t Pseudo_Rand(uint32_t addr)
{
    uint32_t hash = 0;
    uint32_t i;
    uint8_t* key = (uint8_t *)&addr;

    for(i = 0; i < 4; i++)
    {
        hash += key[i];
        hash += (hash << 10);
        hash ^= (hash >> 6);
    }

    for(i = 0; i < 256; i++)
    {
        hash += (hash << 10);
        hash ^= (hash >> 6);
    }

    hash += (hash << 3);
    hash ^= (hash >> 11);
    hash += (hash << 15);

    return hash;
}

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main(void)
{
    uint32_t Address;
    EEPROM_Mem_Bank BankSelector;
    uint32_t Data;
    int i;
    uint8_t EraseErrMM = 0;
    uint8_t WriteErrMM = 0;
    uint8_t EraseErrIM = 0;
    uint8_t WriteErrIM = 0;

    RST_CLK_DeInit();
    SystemCoreClockUpdate();

    /* Enables the clock on PORTB and EEPROM */
    RST_CLK_PCLKcmd((RST_CLK_PCLK_PORTB | RST_CLK_PCLK_EEPROM), ENABLE);

    /* Configure PORTB pins 0...4 for output to switch LEDs on/off */
    PORT_StructInit(&PORT_InitStructure);
    PORT_InitStructure.PORT_Pin   = (PORT_Pin_0 | PORT_Pin_1 | PORT_Pin_2 |
                                     PORT_Pin_3 | PORT_Pin_4);
    PORT_InitStructure.PORT_OE    = PORT_OE_OUT;
    PORT_InitStructure.PORT_FUNC  = PORT_FUNC_PORT;
    PORT_InitStructure.PORT_MODE  = PORT_MODE_DIGITAL;
    PORT_InitStructure.PORT_SPEED = PORT_SPEED_SLOW;
    PORT_Init(MDR_PORTB, &PORT_InitStructure);

    /* Erase main memory page 0 */
    Address = 0x00010000;
    BankSelector = EEPROM_Main_Bank_Select;
    EEPROM_ErasePage(Address, BankSelector);

    /* Check main memory page 0 */
    Data = 0xFFFFFFFF;
    for(i = 0; i < 1024; i++)
    {
        if (EEPROM_ReadWord(Address + i * 4, BankSelector) != Data)
        {
            EraseErrMM = 1;
            break;
        }
    }

    /* Indicate status of erasing main memory page 0*/
    if (EraseErrMM == 0)
    {
        PORT_SetBits(MDR_PORTB, PORT_Pin_0);
    }

    /* Fill main memory page 0 */
    Address = 0x00010000;
    BankSelector = EEPROM_Main_Bank_Select;
    for(i = 0; i < 1024; i++)
    {
        Data = Pseudo_Rand(Address + i * 4);
        EEPROM_ProgramWord(Address + i * 4, BankSelector, Data);
    }

    /* Check main memory page 0 */
    Address = 0x00010000;
    BankSelector = EEPROM_Main_Bank_Select;
    for(i = 0; i < 1024; i++)
    {
        Data = Pseudo_Rand(Address + i * 4);
        if (EEPROM_ReadWord(Address + i * 4, BankSelector) != Data)
        {
            WriteErrMM = 1;
            break;
        }
    }

    /* Indicate status of writing main memory page 0*/
    if (WriteErrMM == 0)
    {
        PORT_SetBits(MDR_PORTB, PORT_Pin_1);
    }

    /* Full Erase information memory */
    Address = 0x00000000;
    BankSelector = EEPROM_Info_Bank_Select;
    EEPROM_ErasePage(Address, BankSelector);

    /* Check information memory */
    Data = 0xFFFFFFFF;
    for(i = 0; i < 1024; i++)
    {
        if (EEPROM_ReadWord(Address + i * 4, BankSelector) != Data)
        {
            EraseErrIM = 1;
            break;
        }
    }
    /* Indicate status of erasing information memory */
    if (EraseErrIM == 0)
    {
        PORT_SetBits(MDR_PORTB, PORT_Pin_2);
    }

    /* fill information memory */
    Address = 0x00000000;
    BankSelector = EEPROM_Info_Bank_Select;
    for(i = 0; i < 1024; i++)
    {
        Data = Pseudo_Rand(Address + i * 4);
        EEPROM_ProgramWord(Address + i * 4, BankSelector, Data);
    }

    /* Check information memory */
    Address = 0x00000000;
    BankSelector = EEPROM_Info_Bank_Select;
    for(i = 0; i < 1024; i++)
    {
        Data = Pseudo_Rand(Address + i * 4);
        if (EEPROM_ReadWord(Address + i * 4, BankSelector) != Data)
        {
            WriteErrIM = 1;
            break;
        }
    }

    /* Indicate status of writing information memory */
    if (WriteErrIM == 0)
    {
        PORT_SetBits(MDR_PORTB, PORT_Pin_3);
    }

    while(1) {}
}

/**
  * @brief  Reports the source file name, the source line number
  *         and expression text (if USE_ASSERT_INFO == 2) where
  *         the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @param  expr:
  * @retval None
  */
#if (USE_ASSERT_INFO == 1)
void assert_failed(uint8_t* file, uint32_t line)
{
    /* User can add his own implementation to report the source file name and line number.
       Ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

    /* Infinite loop */
    while(1) {}
}
#elif (USE_ASSERT_INFO == 2)
void assert_failed(uint8_t* file, uint32_t line, const uint8_t* expr)
{
    /* User can add his own implementation to report the source file name, line number and
       expression text.
       Ex: printf("Wrong parameters value (%s): file %s on line %d\r\n", expr, file, line) */

    /* Infinite loop */
    while(1) {}
}
#endif /* USE_ASSERT_INFO */

/** @} */ /* End of group EEPROM_Code_in_RAM_3T */

/** @} */ /* End of group __MDR1986VE3_EVAL */

/** @} */ /* End of group __MDR32Fx_StdPeriph_Examples */

/******************* (C) COPYRIGHT 2026 Milandr *******************************/

/* END OF FILE main.c */

