第五批 之1 中断法串口收发

 

#include <stdio.h>

#include "NUC1xx.h"

#include "DrvGPIO.h"

#include "DrvUART.h"

#include "DrvSYS.h"



uint8_t writechar1[1] ={0x55};//default write char

uint8_t getchar1; 

void UART_INT_HANDLE(void) // UART02 interrupt subroutine  

{ 

DrvUART_Read(UART_PORT0,writechar1,1);//driver read uart

DrvSYS_Delay(5000);

DrvUART_Write(UART_PORT0,writechar1,1); //driver write uart

DrvUART_ClearIntFlag(UART_PORT0, DRVUART_RDAINT);   

}   

//uart set//n,8,1,9600

void uart_init(void)

{

  STR_UART_T param;

  DrvSYS_SelectIPClockSource(E_SYS_UART_CLKSRC, 0);//UART clock is ex 12M    

  //SYSCLK->CLKSEL1.UART_S = 0;  

  //UART clock 00 =ex 12MHz  01 = PLL 1x =inner 22MHz  

  DrvGPIO_InitFunction(E_FUNC_UART0); //GPIO use as uart

   

  param.u32BaudRate        = 9600;        

  param.u8cDataBits        = DRVUART_DATABITS_8;     

  param.u8cStopBits        = DRVUART_STOPBITS_1;     

  param.u8cParity          = DRVUART_PARITY_NONE;     

  param.u8cRxTriggerLevel  = DRVUART_FIFO_1BYTES;     

  param.u8TimeOut          = 0;  //         FIFO time out 

       

  DrvUART_Open(UART_PORT0, &param);

   

  DrvUART_ClearIntFlag(UART_PORT0, DRVUART_RDAINT);

  DrvUART_EnableInt(UART_PORT0,DRVUART_RDAINT,UART_INT_HANDLE);  

}

void Sys_Init()

{

UNLOCKREG();            

    SYSCLK->WRCON.XTL12M_EN = 1;//12M 

//DrvSYS_SetOscCtrl(E_SYS_XTL12M, 1);        

    DrvSYS_Delay(5000); 

//while (DrvSYS_GetChipClockSourceStatus(E_SYS_XTL12M) != 1);

//SYSCLK->CLKSTATUS.XTL12M_STB

LOCKREG();

uart_init();

DrvGPIO_Open(E_GPB, 10, E_IO_OUTPUT);//GPB10 output                                

    DrvGPIO_ClrBit(E_GPB, 10);//if not clear GPB10, the buzzer will on. the default output is 0xffff;

DrvGPIO_Open(E_GPA,2, E_IO_OUTPUT); //GPA2 output, LED1

DrvGPIO_Open(E_GPA,3, E_IO_OUTPUT); //GPA3 output, LED2

}

void delay_ms(void)//delay form xiaobing's source code

{

    uint32_t i,j;

for(i=1000;i>0;i--)

    for(j=2395;j>0;j--);

}

int main (void)

{

Sys_Init();

    while(1)

{

   ;

}

}