pwm_timer_b.h

MSP430开发的使用PID算法温度控制程序 本程序通过485总线与上位机通信发送和接受命令

#ifndef __PWM_TIMER_B
#define __PWM_TIMER_B


#define PWM_IO (BIT1|BIT2)					//PWM1,2设置
#define PWM_SEL P4SEL|=PWM_IO
#define PWM_OUT P4DIR|=PWM_IO
#define PWM_IN  P4DIR&=~PWM_IO
#define PF 0xFF						//加热PWM周期
#define PF1 10000					//制冷PWM周期10S
#define LIMIT 0.3f



//#define CtrlV BIT2							//pwm3设置
//#define CtrlVSEL P4SEL&=~CtrlV
//#define CtrlVOUT P4DIR|=CtrlV
//#define CtrlVIN P4DIR&=~CtrlV
//#define CtrlVSET P4OUT|=CtrlV
//#define CtrlVCLR P4OUT&=~CtrlV



#define PWM3 BIT3							//pwm3设置
#define PWM3SEL P4SEL&=~PWM3
#define PWM3OUT P4DIR|=PWM3
#define PWM3IN P4DIR&=~PWM3
#define P4SET P4OUT|=PWM3
#define P4CLR P4OUT&=~PWM3



#define PWM4 BIT4							//pwm4设置
#define PWM4SEL P4SEL|=PWM4
#define PWM4OUT P4DIR|=PWM4
#define PWM4IN P4DIR&=~PWM4


#define PWM5 BIT5
#define PWM5SEL P4SEL|=PWM5
#define PWM5OUT P4DIR|=PWM5
#define PWM5IN  P4DIR&=~PWM5


#define CHS_IO BIT0|BIT1|BIT2|BIT3
#define CHSSEL P5SEL&=~CHS_IO
#define CHSOUT P5DIR|=CHS_IO
#define CHSIN P5DIR&=~CHS_IO
#define READIN P5IN

unsigned char Address();			//读取地址



#define GetAddress()				nAddress

extern unsigned char nAddress;
extern float iScale;

//void CtrlVoltage(unsigned char doit);
void CtrlPwm3(unsigned char doit);
void CtrlPwm4(unsigned char doit,float SC1);
void CtrlPwm5(unsigned char doit,float SC2);




void InitTimeB();
void SetScale(float sc);
void SetFre(float fre);
unsigned char GoPwm(unsigned char doit);

#endif