#include "myUart.h" 
#include "stm32f10x_rcc.h"
#include "stm32f10x_usart.h"
#include "stm32f10x_it.h" 
#include "misc.h"

UART_CALLBACK uartCallBack;
   
uint8_t USART_RX_BUF[USART_REC_LEN];     //
uint16_t USART_RX_STA=0;       //����״̬���    
static irqCallback_ts myIrqCallback_uart1;

void uart1_callback(uint8_t status, uint32_t param)
{
    uint8_t Res;

    switch (status)
    {
    case 0:
    {
        uartCallBack(USART_RX_BUF, USART_RX_STA);
        memset(USART_RX_BUF, 0, sizeof(USART_RX_BUF));
        USART_RX_STA=0;
    }
        break;
    case 1:
    {
        //��ȡ���յ�������
        USART_RX_BUF[USART_RX_STA] = param;
        USART_RX_STA++;
        if(USART_RX_STA > (USART_REC_LEN - 1))
        {
            USART_RX_STA=0;//�������ݴ���,���¿�ʼ����    
        }
    }
        break;
    
    default:
        break;
    }
}
void myUart1_init(uint32_t baudrate, UART_CALLBACK cb)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;
    NVIC_InitTypeDef NVIC_InitStructure;

    myIrqCallback_uart1.thisCb = uart1_callback;
    USART1_callbackRegiste(&myIrqCallback_uart1);  

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);  //ʹ��USART1��GPIOAʱ��

    //USART1_TX   GPIOA.9
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  //�����������
    GPIO_Init(GPIOA, &GPIO_InitStructure);//��ʼ��GPIOA.9

    //USART1_RX    GPIOA.10��ʼ��
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//PA10
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//��������
    GPIO_Init(GPIOA, &GPIO_InitStructure);//��ʼ��GPIOA.10  

    //Usart1 NVIC ����
    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//��ռ���ȼ�3
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;      //�����ȼ�3
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;         //IRQͨ��ʹ��
    NVIC_Init(&NVIC_InitStructure); //����ָ���IJ�����ʼ��VIC�Ĵ���

    //USART ��ʼ������

    USART_InitStructure.USART_BaudRate = baudrate;//���ڲ�����
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;//�ֳ�Ϊ8λ���ݸ�ʽ
    USART_InitStructure.USART_StopBits = USART_StopBits_1;//һ��ֹͣλ
    USART_InitStructure.USART_Parity = USART_Parity_No;//����żУ��λ
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//��Ӳ������������
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //�շ�ģʽ

    USART_Init(USART1, &USART_InitStructure); //��ʼ������1
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//�������ڽ����ж�
    USART_ITConfig(USART1, USART_IT_IDLE, ENABLE);//�������ڽ����ж�
    // USART_ITConfig(USART1, USART_IT_TC, ENABLE);// ʹ�ܴ��ڷ�������ж�

    USART_Cmd(USART1, ENABLE);                    //ʹ�ܴ���1 
    uartCallBack = cb;
}

void myUart1_sendByte(uint8_t src)
{
    while(!USART_GetFlagStatus(USART1, USART_FLAG_TC));
    USART_SendData(USART1, src);
}
void myUart1_sendArray(uint8_t *src, uint16_t srclen)
{      
    while(srclen --)
    {
        myUart1_sendByte(*src);
        src ++;
    }
}
//////////////////////////////////////////////////////////////////
//�������´���,֧��printf����,������Ҫѡ��use MicroLIB    
#if 1
#pragma import(__use_no_semihosting)             
//��׼����Ҫ��֧�ֺ���                 
struct __FILE 
{ 
    int handle; 

}; 

FILE __stdout;       
//����_sys_exit()�Ա���ʹ�ð�����ģʽ    
void _sys_exit(int x) 
{ 
    x = x; 
} 
//�ض���fputc���� 
int fputc(int ch, FILE *f)
{      
    while((USART1->SR&0X40)==0);//ѭ������,ֱ���������   
    USART1->DR = (uint8_t) ch;      
    return ch;
}
#endif