/**
  ******************************************************************************
  * @file    main.c
  * @author	 Milandr Application Team
  * @version V1.5.0
  * @date    09.09.2022
  * @brief   This example shows how to configure PHY and MAC, transmit and receive some low level data
  ******************************************************************************
  * <br><br>
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, MILANDR SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2026 Milandr </center></h2>
  */

/* Includes ------------------------------------------------------------------*/
#include "MDR1986VE8T.h"
#include "MDR32F8_it.h"
#include "spec.h"

#include "mdr32f8_config.h"
#include "mdr32f8_port.h"
#include "mdr32f8_clkctrl.h"
#include "mdr32f8_eth.h"

/** @addtogroup __MDR32F8_StdPeriph_Examples
  * @{
  */

/** @addtogroup __MDR32F8_Board_For_MCU
  * @{
  */

/** @addtogroup ETH_Example_loopBack_mode
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/


#define MAX_ETH_TX_DATA_SIZE 1514
#define MAX_ETH_RX_DATA_SIZE 1514 / 4

#define FRAME_MAC_SIZE  12
#define FRAME_LEN_SIZE   2
#define FRAME_HEAD_SIZE   (FRAME_MAC_SIZE + FRAME_LEN_SIZE)

#define FRAME_SIZE 64


/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ETH_InitTypeDef  ETH_InitStruct;
ETH_StatusPacketReceptionTypeDef StatusRX;

uint8_t MAC[] = {0xAB,0x78,0x56, 0x34, 0x12, 0x00};

uint8_t FrameTX [MAX_ETH_TX_DATA_SIZE];
uint32_t FrameRX [MAX_ETH_RX_DATA_SIZE];


uint8_t* ptrDataTX;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
uint8_t* Init_FrameTX(uint8_t *destMAC, uint8_t *srcMAC, uint16_t frameLen, uint16_t *payloadLen);
void FillFrameTXData(uint32_t frameIndex, uint32_t frameLength);
/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */

int main(void)
{
    uint32_t ind = 0;
    
    /* ONLY REV2 MCU, errata 0015. Disable Power-on-Reset control. Hold the SW4 button down until operation complete */
    //POR_disable();

    // Key to access clock control 
    UNLOCK_UNIT (CLK_CNTR_key);
    // Key to access fault control
    UNLOCK_UNIT (FT_CNTR_key); 
    // Key to access BKP control
    UNLOCK_UNIT (BKP_key); 

    /* Set CLKCTRL to default */
    CLKCTRL_DeInit();
    /* Enable HSE0 clock */
    CLKCTRL_HSEconfig(CLKCTRL_HSE0_CLK_ON);
    
    BKPCNTR_SRILOWconfig (BKPCNTR_SRILOW_upto_100MHz);
    
    /* Check HSE success, enable PLL0, check PLL0 success, select MAX_CLK src */
    while(CLKCTRL_HSEstatus(CLKCTRL_HSEn_STAT_HSE0_RDY) != SUCCESS){}

    /* Select PLL0 clk src, PLL0_N, PLL0_Q to get FINT = FIN*(PLLn_N)/(PLLn_Q+1) */
    CLKCTRL_CPU_PLLconfig(PLL0, CLKCTRL_PLLn_CLK_SELECT_HSE0div1, PLL_DIVQ_Q_1, 8);//PLLn, SRC, Q, N

    while(CLKCTRL_CPU_PLLstatus(0) != SUCCESS){}

    CLKCTRL_CPUclkPrescaler (CLKCTRL_CPU_CLK_CPUclkDIV2);
    CLKCTRL_MAX_CLKSelection(CLKCTRL_MAX_CLK_PLL0);
    CLKCTRL_PER0_CLKcmd(CLKCTRL_PER0_CLK_MDR_PORTC_EN, ENABLE);

    UNLOCK_UNIT (PORTC_key);

    ETH_ClockDeInit();
    ETH_PHY_ClockConfig(ETH_PHY_CLOCK_SOURCE_PLL0, ETH_PHY_HCLKdiv1);
    
    /* Init ETH_InitStruct members with its default value */
    ETH_StructInit((ETH_InitTypeDef * ) &ETH_InitStruct);

    ETH_InitStruct.ETH_PHY_LB = ENABLE;
    ETH_InitStruct.ETH_PHY_DLB = DISABLE;
    ETH_InitStruct.ETH_PHY_HALFD = DISABLE;
    /*ETH_InitStruct.ETH_PHY_EARLY_DV = 0;*///RESERVED
    ETH_InitStruct.ETH_PHY_DIR = ETH_PHY_CONTROL_DIR_DIRECT;
    ETH_InitStruct.ETH_PHY_BASE_2 = ETH_PHY_CONTROL_BASE_2_TWISTED;
    ETH_InitStruct.ETH_PHY_LINK_PERIOD = 0x11;
    ETH_InitStruct.ETH_PHY_EXT_EN = ETH_PHY_CONTROL_EXT_EN_INTER;
    ETH_InitStruct.ETH_PHY_A_SELR = ETH_PHY_CONTROL_A_SELR_INTER;
    ETH_InitStruct.ETH_PHY_A_TRIM = 0x4;
    ETH_InitStruct.ETH_PHY_A_TRIMR = 0x80;

    ETH_InitStruct.ETH_Extension_Mode  = DISABLE;
    ETH_InitStruct.ETH_ColWnd          = 0x5;
    ETH_InitStruct.ETH_HalfDuplex_Mode = DISABLE;
    ETH_InitStruct.ETH_Buffer_Mode     = ETH_BUFFER_MODE_AUTOMATIC_CHANGE_POINTERS;
    ETH_InitStruct.ETH_Register_CLR    = DISABLE;
    ETH_InitStruct.ETH_Loopback_Mode   = DISABLE;
    ETH_InitStruct.ETH_DBG_XF          = ENABLE;
    ETH_InitStruct.ETH_DBG_RF          = ENABLE;

    ETH_InitStruct.ETH_Dilimiter = 0x1000;

    ETH_InitStruct.ETH_Receive_All_Packets = ENABLE;
    ETH_InitStruct.ETH_Error_CRC_Frames_Reception = ENABLE;
    ETH_InitStruct.ETH_Receiver_Event_Mode = ETH_RECEIVER_EVENT_MODE_PACET_RECEIVED;
    ETH_InitStruct.ETH_Receiver_BE = ETH_RECEIVER_BE_LITTLE_ENDIAN;

    ETH_InitStruct.ETH_Transmitter_BE = ETH_RECEIVER_BE_LITTLE_ENDIAN;
    ETH_InitStruct.ETH_Transmitter_Event_Mode = ETH_TRANSMITTER_BE_LITTLE_ENDIAN;
    ETH_InitStruct.ETH_Automatic_Pad_Strip = ENABLE;
    ETH_InitStruct.ETH_Automatic_Preamble = ENABLE;
    ETH_InitStruct.ETH_Automatic_CRC_Strip = ENABLE;
    ETH_InitStruct.ETH_Automatic_IPG = ENABLE;
    ETH_InitStruct.ETH_Retry_Counter = 0xF;

    ETH_Init(MDR_ETH0, (ETH_InitTypeDef *) &ETH_InitStruct);

    ETH_PHY_Reset(MDR_ETH0);
    ETH_PHYCmd(MDR_ETH0, ENABLE);

    ETH_Start(MDR_ETH0);

    /*Main cycle*/
    while (1)
    {
        FillFrameTXData (ind, FRAME_SIZE);
        ind++;
        ETH_SendFrame (MDR_ETH0, (uint32_t*) FrameTX, FRAME_SIZE);
    
    while(MDR_ETH0->R_HEAD == MDR_ETH0->R_TAIL){}

    StatusRX.Status = ETH_ReceivedFrame (MDR_ETH0, FrameRX);

    }
}


void FillFrameTXData(uint32_t frameIndex, uint32_t frameLength)
{
    uint16_t dataCount;
    uint16_t i;

    // Запись управляющего слова, МАС и Length фрейма
    ptrDataTX =Init_FrameTX(MAC, MAC, frameLength, &dataCount);

    //  Запись индекса фрейма
    ptrDataTX[0] =  frameIndex & 0xFF;
    ptrDataTX[1] = (frameIndex >> 8)  & 0xFF;
    ptrDataTX[2] = (frameIndex >> 16) & 0xFF;
    ptrDataTX[3] = (frameIndex >> 24) & 0xFF;
    
  //  Запись данных для отправки
    for (i = 4; i < dataCount - 2; ++i)
    {
        ptrDataTX[i] = i ;
    }
    // Маркер конца пакета
    ptrDataTX[dataCount - 2] = 0xFF;
    ptrDataTX[dataCount - 1] = frameLength;
}

uint8_t* Init_FrameTX(uint8_t *destMAC, uint8_t *srcMAC, uint16_t frameLen, uint16_t *payloadLen)
{
    uint8_t * ptr_TXFrame = (uint8_t *) &FrameTX[4];
    *payloadLen = frameLen - FRAME_HEAD_SIZE;

    //Count To Send
    *(uint32_t *)&FrameTX[0] = frameLen;

    /* Set destanation MAC address */
    ptr_TXFrame[0]     = destMAC[0];
    ptr_TXFrame[1]     = destMAC[1];
    ptr_TXFrame[2]     = destMAC[2];
    ptr_TXFrame[3]     = destMAC[3];
    ptr_TXFrame[4]     = destMAC[4];
    ptr_TXFrame[5]     = destMAC[5];

    /* Set our MAC address */
    ptr_TXFrame[6]     = srcMAC[0];
    ptr_TXFrame[7]     = srcMAC[1];
    ptr_TXFrame[8]     = srcMAC[2];
    ptr_TXFrame[9]     = srcMAC[3];
    ptr_TXFrame[10]    = srcMAC[4];
    ptr_TXFrame[11]    = srcMAC[5];

    // Return dataCount  
    ptr_TXFrame[12]= (uint8_t)((*payloadLen) >> 8);
    ptr_TXFrame[13]= (uint8_t)((*payloadLen) & 0xFF);

    // Return DataPtr
    return &ptr_TXFrame[FRAME_HEAD_SIZE];
}

//-----------------------------assert_param--------------------------------
#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 ID and line number.
     Ex: printf("Wrong parameters value: file Id %d on line %d\r\n", file_id, 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 ID, line number and
     expression text.
     Ex: printf("Wrong parameters value (%s): file Id %d on line %d\r\n", expr, file_id, line) */

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

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

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


/* END OF FILE main.c */



