#include "debug.h"
#include "ch32v20x.h"


/*********************************************************************
 */
void GPIO_Toggle_INIT(void)
{
    GPIO_InitTypeDef GPIO_InitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
}
//USART 2
void USART2_CFG(void)
{
    /* USART2 TX-->A2   RX-->A3 *     for CH32V203C8T6*/
    GPIO_InitTypeDef  GPIO_InitStructure = {0};
    USART_InitTypeDef USART_InitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);


    // TX Pin
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
   // RX Pin
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = 115200;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;

    USART_Init(USART2, &USART_InitStructure);
    USART_Cmd(USART2, ENABLE);
}

void Uart2BufferSend(uint8_t* buffer, uint16_t length)
{
    uint16_t tmp = 0;
    for(tmp =0; tmp < length; tmp++)
    {
       while(USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET) /* waiting for sending finish */
        {}
        USART_SendData(USART2, buffer[tmp]);
    }

}

//USART 1
void USART1_CFG(void)
{
    /* USART1 TX-->A9   RX-->A10 *     for CH32V203C8T6*/
    GPIO_InitTypeDef  GPIO_InitStructure = {0};
    USART_InitTypeDef USART_InitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);


    // TX Pin
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
   // RX Pin
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = 115200;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;

    USART_Init(USART1, &USART_InitStructure);
    USART_Cmd(USART1, ENABLE);
}

void Uart1BufferSend(uint8_t* buffer, uint16_t length)
{
    uint16_t tmp = 0;
    for(tmp =0; tmp < length; tmp++)
    {
       while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET) /* waiting for sending finish */
        {}
        USART_SendData(USART1, buffer[tmp]);
    }

}
/*********************************************************************
 * @fn      main
 *
 * @brief   Main program.
 *
 * @return  none
 */
int main(void)
{
    u8 i = 0;

//    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
    SystemCoreClockUpdate();
    Delay_Init();

    USART1_CFG();
    Delay_Ms(1000);

    USART2_CFG();
    Delay_Ms(1000);

    GPIO_Toggle_INIT();

    while(1)
    {
        Delay_Ms(200);
        GPIO_WriteBit(GPIOB, GPIO_Pin_2, (i == 0) ? (i = Bit_SET) : (i = Bit_RESET));
 
 //       Uart1BufferSend("111 Hallo", 9);
        Delay_Ms(20);
        Uart2BufferSend("222 Hallo", 9);


    }
}