/*****************************************************************************
 * Copyright (c) 2019, Nations Technologies Inc.
 *
 * All rights reserved.
 * ****************************************************************************
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Nations' name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY NATIONS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL NATIONS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ****************************************************************************/

/**
 * @file main.c
 * @author Nations
 * @version v1.0.0
 *
 * @copyright Copyright (c) 2019, Nations Technologies Inc. All rights reserved.
 */
#include <stdio.h>
#include "main.h"
#include "bsp_led.h"
#include "bsp_key.h"

/** @addtogroup N32G4FR_StdPeriph_Examples
 * @{
 */

/** @addtogroup USART_MultiProcessor
 * @{
 */

USART_InitType USART_InitStructure;

void RCC_Configuration(void);
void GPIO_Configuration(void);
void Delay(__IO uint32_t nCount);

/**
 * @brief  Main program
 */
int main(void)
{
    /* System Clocks Configuration */
    RCC_Configuration();

    /* Configure the GPIO ports */
    GPIO_Configuration();

    /* Initialize Leds, Wakeup and Key Buttons mounted on board */
    LED_GPIO_Config();
    EXTI_Key_Config();

    /* USARTy and USARTz configuration ------------------------------------------------------*/
    USART_StructInit(&USART_InitStructure);
	USART_InitStructure.BaudRate            = 115200;
    USART_InitStructure.WordLength          = USART_WL_9B;
    USART_InitStructure.StopBits            = USART_STPB_1;
    USART_InitStructure.Parity              = USART_PE_NO;
    USART_InitStructure.HardwareFlowControl = USART_HFCTRL_NONE;
    USART_InitStructure.Mode                = USART_MODE_RX | USART_MODE_TX;

    /* Configure USARTy and USARTz */
    USART_Init(USARTy, &USART_InitStructure);
    USART_Init(USARTz, &USART_InitStructure);

    /* Enable the USARTy and USARTz */
    USART_Enable(USARTy, ENABLE);
    USART_Enable(USARTz, ENABLE);

    /* Set the USARTy and USARTz Address */
    USART_SetAddr(USARTy, 0x1);
    USART_SetAddr(USARTz, 0x2);

    /* Select the USARTz WakeUp Method */
    USART_ConfigWakeUpMode(USARTz, USART_WUM_ADDRMASK);

    while (1)
    {
        /* Send one byte from USARTy to USARTz */
        USART_SendData(USARTy, 0x33);

        /* Wait while USARTy TXE = 0 */
        while (USART_GetFlagStatus(USARTy, USART_FLAG_TXDE) == RESET)
        {
        }

        if (USART_GetFlagStatus(USARTz, USART_FLAG_RXDNE) != RESET)
        {
            if (USART_ReceiveData(USARTz) == 0x33)
            {
                LED1_RED_ON;
                Delay(0x5FFFFF);
                LED1_RED_OFF;
                Delay(0x5FFFFF);

                LED3_GREEN_ON;
                Delay(0x5FFFFF);
                LED3_GREEN_OFF;
                Delay(0x5FFFFF);

                LED2_BLUE_ON;
                Delay(0x5FFFFF);
                LED2_BLUE_OFF;
                Delay(0x5FFFFF);
            }
            /* Overflow data loss */
            if(USART_GetFlagStatus(USARTz, USART_FLAG_OREF) != RESET)
            {
                USARTz->DAT;
            }
        }
    }
}

/**
 * @brief  Configures the different system clocks.
 */
void RCC_Configuration(void)
{
    /* Enable GPIO clock */
    RCC_EnableAPB2PeriphClk(USARTy_GPIO_CLK | USARTz_GPIO_CLK | RCC_APB2_PERIPH_AFIO, ENABLE);
    /* Enable USARTy and USARTz Clock */
    USARTy_APBxClkCmd(USARTy_CLK, ENABLE);
    USARTz_APBxClkCmd(USARTz_CLK, ENABLE);
}

/**
 * @brief  Configures the different GPIO ports.
 */
void GPIO_Configuration(void)
{
    GPIO_InitType GPIO_InitStructure;
	GPIO_InitStruct(&GPIO_InitStructure);

    /* Configure USARTy Rx as input floating */
    GPIO_InitStructure.Pin       = USARTy_RxPin;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_InitPeripheral(USARTy_GPIO, &GPIO_InitStructure);

    /* Configure USARTz Rx as input floating */
    GPIO_InitStructure.Pin = USARTz_RxPin;
    GPIO_InitPeripheral(USARTz_GPIO, &GPIO_InitStructure);

    /* Configure USARTy Tx as alternate function push-pull */
    GPIO_InitStructure.Pin        = USARTy_TxPin;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF_PP;
    GPIO_InitPeripheral(USARTy_GPIO, &GPIO_InitStructure);

    /* Configure USARTz Tx as alternate function push-pull */
    GPIO_InitStructure.Pin = USARTz_TxPin;
    GPIO_InitPeripheral(USARTz_GPIO, &GPIO_InitStructure);
}

/**
 * @brief  Inserts a delay time.
 * @param nCount specifies the delay time length.
 */
void Delay(__IO uint32_t nCount)
{
    /* Decrement nCount value */
    for (; nCount != 0; nCount--)
        ;
}

#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
 */
void assert_failed(const uint8_t* expr, const uint8_t* file, uint32_t line)
{
    /* User can add his own implementation to report the file name and line number,
       ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

    /* Infinite loop */
    while (1)
    {
    }
}

#endif

/**
 * @}
 */

/**
 * @}
 */
