timer.c

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    return  (0);
}
/*********************************************************************************************************
** Function name:           timerConfig
** Descriptions:            设置定时器控制选项
** input parameters:        ucTimer             定时器号
**                          ucOption            选项(timer.h)
** output parameters:       NONE
** Returned value:          正确返回 0,  错误返回 -1
** Created by:              Hanhui
** Created Date:            2007/09/18
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
int     timerConfig (unsigned char  ucTimer, unsigned char   ucOption)
{
    switch (ucTimer) {
    
    case 0:                                                             /*  定时器 0                    */
        rTCON &= 0xFFFFFF00;
        rTCON |= ucOption;
        break;
		
    case 1:                                                             /*  定时器 1                    */
        rTCON &= 0xFFFFF0FF;
        rTCON |= (unsigned int)(ucOption << 8);
        break;
        
    case 2:                                                             /*  定时器 2                    */
        rTCON &= 0xFFFF0FFF;
        rTCON |= (unsigned int)(ucOption << 12);
        break;
        
    case 3:                                                             /*  定时器 3                    */
        rTCON &= 0xFFF0FFFF;
        rTCON |= (unsigned int)(ucOption << 16);
        break;
		
    case 4:                                                             /*  定时器 4                    */
        rTCON &= 0xFF0FFFFF;
		
        if (ucOption &  TIMER_RELOAD) {                                 /*  timer4 没有 INVERTER 位     */
            ucOption &= 0x07;
            ucOption |= TIMER_INVERTER;                                 /*  INVERTER 位 决定 Reload     */
        }
		
        rTCON |= (unsigned int)(ucOption << 20);
        break;
    
    default:
        return  (-1);
    }
		
    return  (0);
}
/*********************************************************************************************************
** Function name:           timerSetCnt
** Descriptions:            设置定时器初始计数值
** input parameters:        ucTimer             定时器号
**                          usCnt               计数值
** output parameters:       NONE
** Returned value:          正确返回 0,  错误返回 -1
** Created by:              Hanhui
** Created Date:            2007/09/18
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
int     timerSetCnt (unsigned char  ucTimer, unsigned short   usCnt)
{
    switch (ucTimer) {
    
    case 0:                                                             /*  定时器 0                    */
        rTCNTB0 = usCnt;
        break;
    
    case 1:                                                             /*  定时器 1                    */
        rTCNTB1 = usCnt;
        break;
        
    case 2:                                                             /*  定时器 2                    */
        rTCNTB2 = usCnt;
        break;
        
    case 3:                                                             /*  定时器 3                    */
        rTCNTB3 = usCnt;
        break;
        
    case 4:                                                             /*  定时器 4                    */
        rTCNTB4 = usCnt;
        break;
        
    default:
        return  (-1);
    }
    
    return   (0);
}
/*********************************************************************************************************
** Function name:           timerSetCmp
** Descriptions:            设置定时器比较值
** input parameters:        ucTimer             定时器号
**                          usCnt               比较值
** output parameters:       NONE
** Returned value:          正确返回 0,  错误返回 -1
** Created by:              Hanhui
** Created Date:            2007/09/18
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
int     timerSetCmp (unsigned char  ucTimer, unsigned short   usCnt)
{
    switch (ucTimer) {
    
    case 0:                                                             /*  定时器 0                    */
        rTCMPB0 = usCnt;
        break;
    
    case 1:                                                             /*  定时器 1                    */
        rTCMPB1 = usCnt;
        break;
        
    case 2:                                                             /*  定时器 2                    */
        rTCMPB2 = usCnt;
        break;
        
    case 3:                                                             /*  定时器 3                    */
        rTCMPB3 = usCnt;
        break;
        
    default:                                                            /*  没有定时器 4                */
        return  (-1);
    }
    
    return   (0);
}
/*********************************************************************************************************
** Function name:           timerGetCnt
** Descriptions:            获得定时器计数值
** input parameters:        ucTimer             定时器号
** output parameters:       NONE
** Returned value:          计数值  错误返回 -1
** Created by:              Hanhui
** Created Date:            2007/09/18
**--------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
int     timerGetCnt (unsigned char  ucTimer)
{
    switch (ucTimer) {
    
    case 0:                                                             /*  定时器 0                    */
        return  (rTCNTO0);
        
    case 1:                                                             /*  定时器 1                    */
        return  (rTCNTO1);
        
    case 2:                                                             /*  定时器 2                    */
        return  (rTCNTO2);
        
    case 3:                                                             /*  定时器 3                    */
        return  (rTCNTO3);
        
    case 4:                                                             /*  定时器 4                    */
        return  (rTCNTO4);
        
    default:
        return  (0);
    }
}
/*********************************************************************************************************
  END FILE
*********************************************************************************************************/