uartapi.c

ARM开发环境IAR下针对ZLG的实验板EasyARM8962的应用示例程序

/****************************************Copyright (c)****************************************************
**                            Guangzhou ZHIYUAN electronics Co.,LTD.
**                                      
**                                 http://www.embedtools.com
**
**--------------File Info---------------------------------------------------------------------------------
** File name:               hibernateRTC.c
** Latest modified Date:    2007-09-16
** Latest Version:          1.0
** Descriptions:            The hibernate function example template
**
**--------------------------------------------------------------------------------------------------------
** Created by:              Zhao shimin
** Created date:            2007-09-16
** Version:                 1.0
** Descriptions:            The original version
**
**--------------------------------------------------------------------------------------------------------
** Modified by:             
** Modified date:           
** Version:                 
** Descriptions:            
**
*********************************************************************************************************/
#include    "UARTAPI.H"

#define  UART0_PIN  (GPIO_PIN_0 | GPIO_PIN_1)


/*********************************************************************************************************
** Function name:           uartInit 
**
** Descriptions:            初始化uart模块
**
** input parameters:        NONE
** output parameters:       NONE
**
** Returned value:          NONE
**
** Created by:              Zhao shimin
** Created Date:            2007/09/16
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
void uartInit(void)
{
     SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
                   SYSCTL_XTAL_6MHZ);                                   /*  设置晶振为时钟源             */

    SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);                        /*  使能UART外设                 */
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);                        /*  使能GPIOA外设                */
    
   
    GPIOPinTypeUART(GPIO_PORTA_BASE, UART0_PIN);                        /*  使能UART功能脚               */
                                                                        /*  设置GPIO的A0和A1为UART引脚   */
                                                                        /*  (A0->RXD,A1->TXD)            */    					                                 
	
    UARTConfigSet(UART0_BASE, 9600, (UART_CONFIG_WLEN_8 |
                                     UART_CONFIG_STOP_ONE |
                                     UART_CONFIG_PAR_NONE));            /*  配置UART 为 9600波特率       */
                                                                        /*  8-N-1模式发送数据            */                                                                        
    
    

}
/*********************************************************************************************************
** Function name:           uartSend 
**
** Descriptions:            uart发送一个字符函数
**
** input parameters:        NONE
** output parameters:       NONE
**
** Returned value:          NONE
**
** Created by:              Zhao shimin
** Created Date:            2007/09/16
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
void uartSendchar(char cSendchar)    
{  
    /*  发送一个字符，发送前判断是否有FIFO空间*/                                 
    UARTCharNonBlockingPut(UART0_BASE, cSendchar);                       
    	                                                     
}
/*********************************************************************************************************
** Function name:           uartSendstring 
**
** Descriptions:            uart发送一个字符串的函数
**
** input parameters:        NONE
** output parameters:       NONE
**
** Returned value:          NONE
**
** Created by:              Zhao shimin
** Created Date:            2007/09/16
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
void uartSendstring(char *pcSendstring)
{
    while (*pcSendstring) {
        if (UARTSpaceAvail(UART0_BASE)) {
		    uartSendchar(*pcSendstring);
                    pcSendstring++;
		}   
	}

}
/*********************************************************************************************************
  END FILE
*********************************************************************************************************/