board.h

dtmf的编解码代码

#define  IMR_ADDR 0
#define  DXR10_ADDR 0x23
#define  DRR10_ADDR 0x21

#define  UART_COUNTER  0x62
#define  KEYIN_COUNTER 0X61
#define  LCD_SIZE      23
#define  KEY_SIZE      6
#define  LED_SIZE      14

#define  N				125
#define  COS697			1.73012076 		/* 2*COS(2*PI*f0/fs) */
#define  COS770			1.67230433 		/* 2*COS(2*PI*f0/fs) */
#define  COS852			1.60132892 		/* 2*COS(2*PI*f0/fs) */
#define  COS941			1.51737895 		/* 2*COS(2*PI*f0/fs) */

#define  COS1209		1.22501963 		/* 2*COS(2*PI*f0/fs) */
//1.26040766708382  //1179
#define  COS1336   1.06825621 		/* 2*COS(2*PI*f0/fs) */
//1.01671309809108  //1376
//1.02967037892284//1366  ok

#define  COS1477	   	0.88281128		/* 2*COS(2*PI*f0/fs) */
//0.93244940677016  //1440   ok
//0.91908203912045  //1450  ok
//0.90566241871558  //1460  ok
//  0.93911325820160   //1435
//0.94576376168710 //1430
// 0.97223040852487 //1410
//0.98538119573214//1400

#define  COS1633		0.66611311		/* 2*COS(2*PI*f0/fs) */
#define  GATE			50

ioport unsigned port8000;     /*  for CTRL word */
ioport unsigned porte000;     /*  for DC MOTOR run */
ioport unsigned portc000;     /*  for LEDs show */
ioport unsigned portf000;     /*  for STEPMOTOR */