const.h

3 phase motor driver source code with freescale MCU

/*
 * Project:		 	3-PHASE AC DRIVE
 *
 * Microcontroller: Motorola MC68HC908MR24 
 *
 * Module:			CONST.H
 * Revision/Date:	2.0 / February 2000 
 * Description:		File contains global constants
 *
 * Compiler:		Hiware08 Compiler
 *
 * Author:			Radim VISINKA
 * Company:			MOTOROLA SPS
 *					Motorola Czech Systems Laboratories 
 *					Roznov pod Radhostem, Czech Republic 
 *
 * ===================================================================
 *
 * Copyright (c):	MOTOROLA Inc.,1998, All rights reserved.
 *
 * ====================================================================
 * THIS SOFTWARE IS PROVIDED BY MOTOROLA RSAL "AS IS" AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILI9Y AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL MOTOROLA RSAL OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 */



/* DEFINITION_START */

										
/* Constant Definitions */

#define PWM_MODULUS		0x00fa		/* set MC PWM modulus to 16 kHz */

#define F_TIMERA_2		0xe100		/* 1/2 of timer frequency: 1/2 * (7.3728E6 / 64) */


/* Software Timer Constants */

#define READ_CONST 		0x0073		/* read_constant timeout: 1msec=0x0073 */
									/* 5msec = 0x0240 */
#define PI_CONST 		0x0480		/* PI_constant timeout: 10msec=0x0480 */
									/*     const = time*7372800/64    */

/* PI Controller Constants */

#define	I_CONST			0x30		/* Integrational constant */
#define P_CONST			0x70		/* Proportional constant */
#define	MAX_SLIP		0x0a00		/* max slip is 10 Hz */
#define IN_1_LIMIT		0x6f00		/* Limitation of I part of PI controller */

							
/* Acceleration Ramp Constants */
									
#define ACC	 			11			/* acceleration constant => 20 Hz/sec */
#define DEC	 			11			/* deceleration constant => 20 Hz/sec */

									/*  	 acceleration (Hz) * 256 * 64
									   ACC = ---------------------------- * 256 = 11
											 7.3728 * 10^6
									*/
									/* acceleration = PWM_reload / ramp_reload * accel */
									/* deceleration = PWM_reload / ramp_reload * decel */
									/* result is in 8.8 format */

/* V/Hz Ramp Constants */

#define VOLTS_BOOST		10			/* min. voltage for boost = 10% from 255 */
#define VOLTS_MIN 		9			/* min ampl. = 9% from 255 */
#define FREQ_BOOST	 	0x0f00		/* boost frequency = 15Hz*/
#define FREQ_BASE		0x3700		/* frequency base point 55Hz=0x3700, 50Hz=0x3200 25Hz=0x1900 */


/* I/O Constants and Definitions */

#define	MCS_LED			0x10		/* Green LED on PTC4 */
#define	YELLOW_LED		0x20		/* Yellow LED on PTC5 */
#define	FAULT_LED		0x40		/* Red LED on PTC6 */


/* Fault Routine Constants and Definitions */

#define FLT_REC_LED_FLASH 0xff 		/* flash constant of fault LED */
#define OV_FLT_REC_TIME	0x1388		/* 5000 * speed routine enter */
#define OC_FLT_REC_TIME	0x2710		/* 10000 * speed routine enter */
#define DCB_VOLT_LIMIT	0xf2		/* overvoltage limit */
									/* 400V = 3.235Vsens = 165 = 0xa5 */
#define DEC_LOW_DCB_V	0xca		/* low limit of DCB during deceleration */
									/* 340V=2.75Vsensed=140=0x8c */

#define	DEC_HIGH_DCB_V	0xe4		/* high limit of DCB during deceleration */
									/* 380V=3.07Vsensed=157=0x9d */
									/* Vsensed = 0.0127 * Vdcb - 0.3607 ??????????*/


/* Control Loop Definition >>Speed_control<< */

#define	OPEN_LOOP		0x01


/* Fault Register Definition  >>Fault_flags<< */

#define	OVER_VOLTAGE	0x01
#define	OVER_CURRENT	0x02
#define OV_DEC_FLAG		0x80


/* MCS Status Register Definition >>Mcs_status<< */

#define	GF_FLAG			0x01
#define	GFR_FLAG		0x02
#define	MCS_STAND_BY	0x04
#define	MCS_STOP		0x08
#define	MCS_RUN			0x10
#define START_STOP_FLG	0x20
#define MCS_ACCEL		0x40	


/*	authorize interrupts*/

#define cli()	asm cli
#define sei()   asm sei 
				

/* DEFINITION_END */