hardware.h

一个可以运行在dsPIC30F微处理器上的电机控制代码。该代码以及后续说明完全使读者一看就明白。

// This file contins details of the hardware for the project
// PCB : dsPIC30F Motor Control Development PCB

// This is the clock frequency in Hz including any PLL factor
#define CLOCK_FREQ 7378000

// NB Using LAT Registers rather than PORT registers
// to prevent any read/modify/write issues with outputs

// These are the pushbutton pin connections
#define	BUTTON1	!PORTGbits.RG6		//S4 on PCB
#define	BUTTON2	!PORTGbits.RG7		//S5 on PCB
#define	BUTTON3	!PORTGbits.RG8		//S6 on PCB
#define	BUTTON4	!PORTGbits.RG9		//S7 on PCB
#define TRIP_BUTTON !PORTEbits.RE8	//S3 on PCB

// These are the LEDs
#define DIR_LED LATDbits.LATD7		//D5 on PCB
#define LED1 LATAbits.LATA9			//D6 on PCB
#define LED2 LATAbits.LATA10		//D7 on PCB
#define LED3 LATAbits.LATA14		//D8 on PCB
#define LED4 LATAbits.LATA15		//D9 on PCB

// This is the control line for the driver IC for the firing signals
// It must be low to activate the signals to the power module.
#define	PWM_OUTPUT_DISABLE LATDbits.LATD11

// Also declare some useful shortcuts
#define DISABLE_FIRING PWM_OUTPUT_DISABLE=1
#define ENABLE_FIRING PWM_OUTPUT_DISABLE=0

// This is the reset line for the hardware faults in the power module.
// It is also used to reset the 12C671 providing the isolated
// feedback of the |Vac| and Vdc signals. Therefore the min high time
// is 4us to allow for the opto and to ensure 12C671 has pulse > 2us.
#define FAULT_RESET	LATEbits.LATE9

// This the RS485_TXENA (active high line)
#define RS485_TXENA LATGbits.LATG1

// This the RS485_RXENA (active LOW line)
#define RS485_RXENA !LATGbits.LATG0

// The following definitions are provided to allow direct
// access to peripheral output pins for development and testing.

// PFC switch firing line
#define	PFC_FIRE	LATDbits.LATD5

// BRAKE circuit firing line
#define BRAKE_FIRE	LATDbits.LATD4

//This is the RS485_TX line
#define RS485_TX LATFbits.LATF5

//This is the RS485_RX line
#define RS485_RX PORTFbits.RF4

//This is the CAN_TX line
#define CAN_TX LATFbits.LATF1

//This is the CAN_RX line
#define CAN_RX PORTFbits.RF0

//This is the RS232_TX line
#define RS232_TX LATFbits.LATF3

//This is the RS232_RTS line
#define RS232_RTS LATGbits.LATG2

//This is the RS232_RX line
#define RS232_RX PORTFbits.RF2

//This is the RS232_CTS line
#define RS232_CTS PORTGbits.RG3