/********************************** (C) COPYRIGHT *******************************
 * File Name          : main.c
 * Author             : WCH
 * Version            : V1.0.0
 * Date               : 2024/05/05
 * Description        : Main program body.
 *********************************************************************************
 * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
 * Attention: This software (modified or not) and binary are used for
 * microcontroller manufactured by Nanjing Qinheng Microelectronics.
 *******************************************************************************/

#include "includes.h"
#include <stdio.h>
#include <string.h>

const char Prject_File_Name[] __attribute__((section(".project_info"))) = Project_Version;

uint32_t test_tick = 0;

/*********************************************************************
 * @fn      main
 *
 * @brief   Main program.
 *
 * @return  none
 */
int main(void)
{
    uint8_t sys_reset = 0;
    unsigned char Buffer;

    /* - 上电前需要关闭看门狗
     * - 原因：如果开启看门狗后，软件进行复位还看门狗存在，会一直产生复位
     * */
    WDT_Reinit();
    SystemCoreClockUpdate();            //系统初始化
    Systick_Init();

    UARTx_Init(UART_1,512000);
    UARTx_Init(UART_2,512000);

    SYS_LED_Init();

    SPI_SRAM_Init();

    SPI_FLASH_Init();

    Get_Flash_Size(&Buffer);

    if(Buffer){
        DBG_SYS_Printf("CH564 ROMA :0x0 - 0x6FFFF");
        DBG_SYS_Printf("CH564 EEPROM :0x70000 - 0x77FFF");
    }else {
        DBG_SYS_Printf("CH564 ROMA :0x0 - 0x2FFFF");
        DBG_SYS_Printf("CH564 EEPROM :0x30000 - 0x37FFF");
    }

    EEPROM_Init();

    memset((uint8_t *)&g_app_feature,0,sizeof(G_SYS_FEATURE_T));
    memset((uint8_t *)&g_mcu_app_feature,0,sizeof(G_SYS_FEATURE_T));
    memset((uint8_t *)&g_update_recode,0,sizeof(UPDATE_RECORD_T));

    DBG_SYS_Printf("Project Name:%s",Prject_File_Name);

    DBG_SYS_Printf("Project - SYSCLK_FREQ_120MHz_HSI");

    sys_reset = RCC_GET_GLOB_RST_KEEP();        //复位保持寄存器
    if(sys_reset == 0x00)
    {
        DBG_SYS_Printf("上电复位 \r\n");
        g_Boot_Time = 10000;

    }else if(sys_reset == 0x02){
        DBG_SYS_Printf("软件复位  \r\n");
        g_Boot_Time = 10000;

    }else if(sys_reset == 0x03){
        DBG_SYS_Printf("MCU Flash软件复位  \r\n");
        g_Boot_Time = 3000;

    }else {
        DBG_SYS_Printf("异常复位 \r\n");
        g_Boot_Time = 10000;
    }

    RCC_SET_GLOB_RST_KEEP(0x01);
    SPIFLASH_Read_Update_Recode(&g_update_recode);      //读取APP写入次数

    g_jump_flag = Read_APP_Feature();

    //测试使用的 - 不是最终状态
    if(g_jump_flag == 2)      {
        MCU_APP_Write();        //MCU需要写入

        DBG_SYS_Printf("进行MCU Flash软件复位  \r\n");

        RCC_SET_GLOB_RST_KEEP(0x03);
        Delay_Ms(1000);

        // - 进行全局复位，让芯片重新转载Code Flash
        //RCC_GlobleRstCFG(RB_GLOB_FORCE_RST, ENABLE);

        // - 软件复位，芯片重新转载Code Flash,需要启动文件中的LD文件 .vector字段中加入 KEEP,否则不能使用
        NVIC_SystemReset();
        while(1);
    }

    //Dbg_Switch = 0x00;
    WDT_Init();

    while (1)
    {
        WDT_Feed();

        SYS_LED_Task();

        Uart1_Task();

        Uart2_Task();

        //测试使用的 - 不是最终状态
        if(g_jump_flag == 0x00)
        {
            if(SysTick_1ms - g_Boot_Tick >= g_Boot_Time)
            {
                g_Boot_Tick = SysTick_1ms;

                DBG_SYS_Printf("Jump APP 2\r\n");

                Delay_Ms(1000);

                WDT_Reinit();

                NVIC_EnableIRQ( Software_IRQn );
                Delay_Ms( 20 );
                HSI_ON();
                CLKSEL_HSI();
                SYSCLK_SOURCE_SELECT(SYSCLK_SOURCE_HSI_HSE);
                RCC_UNLOCK_SAFE_ACCESS();
                BITS_CFG( R32_EXTEN_CTLR0 , RB_FLASH_PRE_EN , DISABLE );
                RCC_LOCK_SAFE_ACCESS();
                NVIC_SetPendingIRQ( Software_IRQn );
            }
        }else {
            if(SysTick_1ms - g_Boot_Tick >= g_Boot_Time)
            {
                DBG_SYS_Printf("进行软件复位 ....");
                RCC_SET_GLOB_RST_KEEP(0x02);

                Delay_Ms(1000);

                //方式1：
                //RCC_GlobleRstCFG(RB_GLOB_FORCE_RST, ENABLE);

                //方式2：
                NVIC_SystemReset();
                while(1);
            }
        }

    }
}

void NMI_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void HardFault_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));

/*********************************************************************
 * @fn      NMI_Handler
 *
 * @brief   This function handles NMI exception.
 *
 * @return  none
 */
void NMI_Handler(void)
{
    while (1)
    {

    }
}

/*********************************************************************
 * @fn      HardFault_Handler
 *
 * @brief   This function handles Hard Fault exception.
 *
 * @return  none
 */
void HardFault_Handler(void)
{
    /* MRS_关于HardFault问题查找思路 : https://www.cnblogs.com/wchmcu/p/17545931.html */
    uint32_t v_mepc,v_mcause,v_mtval;
    //Dbg_Println(DBG_BIT_SYS_STATUS_bit,"hardfault\n");

    v_mepc = __get_MEPC();
    v_mcause = __get_MCAUSE();
    v_mtval = __get_MTVAL();

    printf("boot mepc:%x\n",v_mepc);
    printf("boot mcause:%x\n",v_mcause);
    printf("boot mtval:%x\n",v_mtval);

    while(1);
}

/* - 跳转APP 程序必须在SW_Handler中断中跳转
 * - 因为进入SW_Handler中断后，芯片会进入机器模式，才允许跳转APP */
void SW_Handler(void) {

    __asm volatile("li  a6, 0x01000");
    __asm volatile("jr  a6");
    while(1);

}