HPI.rar_XXX18_hpi

#include <pic18.h> #include <math.h> #define DIR RD0 #define HAS RE7 #define HCS RE6 #define HDS1 RE0 #define HDS2 RE1 #define HCNTL0 RE2 #define HCNTL1 RE3 #define HBIL RE4 #define HRW RE5 void HPI_init(void); void HPI_Write_add(unsigned int add1); void HPI_Write_dat(unsigned int dat1_write); unsigned int HPI_Read(void); void delay(unsigned int temp); unsigned int dspda1,dspda2; unsigned long temp1; void main(void) { unsigned int i=0; //TRISC= 0x80; //TRISC6=0; ADCON1= 0x0f; CMCON= 0x07; TRISD0= 0; TRISE= 0x00; HPI_init(); HPI_Write_add(0x0801); HPI_Write_dat(0x3824); HPI_Write_add(0x0801); asm("nop"); i= HPI_Read(); HPI_Write_add(0x0803); HPI_Write_dat(i); asm("nop"); asm("nop"); while(1){ asm("nop");} } void delay(unsigned int temp) { unsigned int i; for(i=0;i<temp;i++) asm("nop"); } /*********/ /*HPI通讯*/ /*********/ void HPI_init(void) { DIR= 0; TRISF= 0x00; HCS= 0; HDS2=1; HAS=1; HBIL= 0; //写控制命令 HRW= 0; HCNTL1= 0; HCNTL0= 0; HDS1= 1; PORTF= 0x08; HDS1=0;// HDS1=1; HBIL= 1; HDS1= 1; PORTF= 0x08; HDS1= 0; HDS1= 1; } void HPI_Write_add(unsigned int add1) { DIR= 0; TRISF= 0x00; HBIL= 0; ////写地址 HRW= 0; HCNTL1= 1; HCNTL0= 0; HDS1= 1; PORTF= add1/256; HDS1=0;// HDS1=1; HBIL= 1; HDS1= 1; PORTF= add1&0xff; HDS1= 0; HDS1= 1; } void HPI_Write_dat(unsigned int dat1_write)//,unsigned int dat2_write) { DIR= 0; TRISF= 0x00; HBIL= 0; //写数据 HRW= 0; HCNTL1= 1; HCNTL0= 1; HDS1= 1; PORTF= dat1_write/256; HDS1=0;// HDS1=1; HBIL= 1; HDS1= 1; PORTF= dat1_write&0xff; HDS1= 0; HDS1= 1; } unsigned int HPI_Read(void) { unsigned int dspdata; DIR=1; //读数据 TRISF= 0xff; HDS1= 1; HRW= 1; HDS1= 1; HBIL= 0; HCNTL1= 0; HCNTL0= 1; HDS1= 0; dspda1=PORTF; HDS1=1; HDS1= 1; HBIL= 1; HDS1= 0; dspda2=PORTF; HDS1= 1; dspdata=dspda1*256+dspda2; return(dspdata); }