[菜农助学交流] UART--printf打印counter计数

/***************************************************************************************

* File Name : UART_KEY_TIME.c

* Copyright : 2011-2011 ecjtu Corporation,All Rights Reserved

* Module Name : UART_KEY_TIME

*

* CPU : Cortex-M0

* RTOS : NO

* Create Date : 2011/12/02

* Author/Corporation : 涛行天下/华东交通大学

*

* Abstract Description : 串口通信，按键

*---------------------------Revision History--------------------------------

* Revision History

* No. Version Date Revised by Item Description

* 1 V0.0 11.12.02 涛行天下 ... ....

***************************************************************************************/

/*

利用定时器对1秒时间内KEY2键的操作情况进行检测，

并通过串口将测试结果传给PC

*/



#include <stdio.h>

#include "NUC1xx.h"

#include "DrvGPIO.h"

#include "DrvSYS.h"

#include "DrvUART.h"

///////////////////////////////////////////////////////

uint8_t test ;

uint8_t inchar[1];

uint32_t TimerCOUN=0;





/***************************************************************************************

* Function Name : TMR0_IRQHandler

* Create Date : 2011/12/02

* Author/Corporation : your name/your company name

*

* Description : Find a proper thread in thread array

*

* Param : ThreadNo : someParam description

ThreadStaus : someParam description

*

*

* Return Code : Return Code description

eg:

ERROR_Fail : not find a thread

ERROR_SUCCEED : found

* Global Variable : DISP_wuiSegmentAppID

* File Static Variable : naucThreadNo

* Function Static Variable : None

* 

*----------------------------------------------------

* Revision History

* No. Date Revised by Item Description

* V0.5 2011/12/02 涛行天下 ... ....

***************************************************************************************/

void TMR0_IRQHandler(void) // Timer0 interrupt subroutine 

{

TIMER0->TISR.TIF =1; 

TimerCOUN++; 

if(test)

{

if( TimerCOUN&0x0020 )

DrvGPIO_SetBit(E_GPA,5);

else 

DrvGPIO_ClrBit(E_GPA,5);

} 

}





void UART_INT_HANDLE(uint32_t u32IntStatus)

{

if(u32IntStatus & DRVUART_RDAINT)

{

/* Get all the input characters */

while(UART0->ISR.RDA_IF==1) 

{



DrvUART_Read(UART_PORT0,inchar,1); /* 保存输入按键 */



}

}

}



void delay()

{

uint32_t i;

for(i=80000;i;i--);

}



void delay_1s()

{

uint32_t i;

for(i = 0; i < 200; i++)

{

DrvSYS_Delay(1000);

}

}



int main (void)

{

uint8_t count;

uint32_t counter;//计数输出

uint32_t loop=1;

STR_UART_T param; //串口参数



UNLOCKREG(); //解除锁定寄存器

DrvSYS_SetOscCtrl(E_SYS_XTL12M, 1); //SYSCLK->WRCON.XTL12M_EN = 1;

DrvSYS_Delay(5000);

LOCKREG(); //重新锁定寄存器



DrvSYS_SelectIPClockSource(E_SYS_UART_CLKSRC,0); //使能UART时钟 UART时钟源选择. 00 =外部12MHz 晶振

DrvGPIO_InitFunction(E_FUNC_UART0); //GPB_MFP0-1-2-3置位 GPIO使能UART功能



param.u32BaudRate = 115200; //波特率为115200

param.u8cDataBits = DRVUART_DATABITS_8; //数据位8

param.u8cStopBits = DRVUART_STOPBITS_1; //停止位 1

param.u8cParity = DRVUART_PARITY_NONE; //校验位 无

param.u8cRxTriggerLevel = DRVUART_FIFO_1BYTES; //FIFO存储深度 1 字节

param.u8TimeOut = 0; //FIFO超时设定



if(DrvUART_Open(UART_PORT0,¶m) != E_SUCCESS) // 串口开启、结构体整体赋值

printf("串口0打开失败！\n"); 



DrvUART_EnableInt(UART_PORT0, DRVUART_RDAINT,UART_INT_HANDLE); //使能接收数据中断，回调函数 UART_INT_HANDLE



/*---------------------------------------------------------------------------------------------------------------------*/







/*设置IO口都是输出状态*/

DrvGPIO_Open( E_GPA, 2, E_IO_OUTPUT ); //led端口设置为输出

DrvGPIO_Open( E_GPA, 3, E_IO_OUTPUT );

DrvGPIO_Open( E_GPA, 4, E_IO_OUTPUT );

DrvGPIO_Open( E_GPA, 5, E_IO_OUTPUT );



DrvGPIO_Open( E_GPB, 14, E_IO_INPUT ); //按键端口设置为输入

DrvGPIO_Open( E_GPB, 15, E_IO_INPUT );





DrvGPIO_ClrBit( E_GPA, 2 ); //程序运行指示

DrvGPIO_ClrBit( E_GPA, 3 );

DrvGPIO_ClrBit( E_GPA, 4 );

DrvGPIO_ClrBit( E_GPA, 5 );



while(1)

{

printf("Counter:\n %d",counter);

counter += 1;

delay_1s();

}

}