信号调理max1452

/******************************************************************************************** **单 位：中国计量学院 ** 杭州量立自动化技术有限公司 ** 三花测控技术工程中心 **文 件 名：MAX1452通讯 **作 者：邵建文 sloan2459@126.com **用 途：MAX1452通讯 **创建时间：2010.5.13 **完成时间：2010. **申 明：任何个人或团体，如若参引本程序，请得到公司或者作者的同意，尊重他人劳动成果，谢谢！ **注 明： *********************************************************************************************/ #include "p24FJ256GB110.h" #include "variate_def.h" struct error_flag{ unsigned uart_rev:1; //if or not recieve data from PC (RS232) unsigned uart_ver:1; //if or not data recieved from PC is correct unsigned :6; unsigned max1452_1:1; //max1452 can recieve data unsigned max1452_2:1; //max1452 baud selfcheck is error unsigned max1452_3:1; //max1452 ICR selfcheck is error unsigned max1452_4:1; //max1452 EEPROM selfcheck is error unsigned max1452_5:1; //max1452 IRSP slefcheck is error unsigned :4; } error; //--------------------------------------------------------------------------- // MAX1452 SUBPROGRAMM // input: the code of an interface register set // output:NULL //--------------------------------------------------------------------------- void max1452_irs_operation(unsigned char irs) { unsigned char i; AD_V_C_LKd=0; AD_V_C_LK=1; //UNLOCK pin == 1 AD_V_C_IOd=0; AD_V_C_IO=1; //set IO =1 delay1ms(5); AD_V_C_IO=0; //START bit delay_9600(); for (i=0;i<1;i++){;} for (i=0;i<8;i++) //8 bata bits { if (irs&0x01) AD_V_C_IO=1; else AD_V_C_IO=0; delay_9600(); irs=irs>>1; } AD_V_C_IO=1; //END bit } //--------------------------------------------------------------------------- // MAX1452 SUBPROGRAMM // input: // output:the test result:"CA" //--------------------------------------------------------------------------- void max1452_baud_initiate(void) { unsigned char i, test; unsigned int wait_time=0; AD_V_C_LKd=0; AD_V_C_LK=1; delay1ms(5); max1452_irs_operation(0xFF); delay1ms(1); max1452_irs_operation(0x01); delay1ms(1); max1452_irs_operation(0xF8); delay1ms(1); max1452_irs_operation(0x59); AD_V_C_IOd=1; //AD_V_C_IO is input port //CNPD2bits.CN16PDE=1; //内部下拉 CNPU2bits.CN16PUE=1; //内部上拉 wait_time=0; do //wait I/O { error.max1452_1=0; if(wait_time++>0x1000)error.max1452_1=1; //if no data go out ,then set error flag }while(AD_V_C_IO && !error.max1452_1); delay_4800(); for (i=0;i<8;i++) { test >>=1; delay_9600(); if (AD_V_C_IO==1) test |= 0x80; else test &= 0x7F; } if(test==0xCA) error.max1452_2=0; else error.max1452_2=1; AD_V_C_IOd=0; //CNPD2bits.CN16PDE=0; //内部下拉 CNPU2bits.CN16PUE=1; //内部上拉 delay1ms(1); } //--------------------------------------------------------------------------- // MAX1452 SUBPROGRAMM // input: icr -- 16bit write to the internal calibration registers // icra -- the address of the target internal calibration register // output:NULL //--------------------------------------------------------------------------- void max1452_icr_write(unsigned int icr, unsigned char icra) { //int icr_data,wait_time; unsigned char data0,data1,data2,data3; data0 = icr<<4; data1 = icr; data2 = icr>>4; data3 = icr>>8; data0 &= 0xF0; data1 &= 0xF0; data2 &= 0xF0; data3 &= 0xF0; data0 |= WR_DHR_30; data1 |= WR_DHR_74; data2 |= WR_DHR_B8; data3 |= WR_DHR_FC; max1452_irs_operation(data0); //send 16bit data to DHR delay1ms(1); max1452_irs_operation(data1); delay1ms(1); max1452_irs_operation(data2); delay1ms(1); max1452_irs_operation(data3); delay1ms(1); data0 = icra; //send the address of the target internal calibration register to ICRSA data0 |= WR_ICRA_30; max1452_irs_operation(data0); delay1ms(1); data0 = CRIL_LdICR; //write the load internal calibration register(LdICR) command to CRIL data0 |= WR_CRIL_30; max1452_irs_operation(data0); delay1ms(1); } //--------------------------------------------------------------------------- // MAX1452 SUBPROGRAMM // input: icra -- the address of the target internal calibration register // output: 16bit write to the internal calibration registers //--------------------------------------------------------------------------- unsigned int max1452_icr_read(unsigned char icra) { unsigned int data,wait_time; unsigned char dal=0,dah=0,addr,comm,i; addr = icra; //send the address of the target internal calibration register to ICRSA addr |= WR_ICRA_30; max1452_irs_operation(addr); delay1ms(1); comm = CRIL_RdICR; //the read internal calibration register(LdICR) command to CRIL comm |= WR_CRIL_30; max1452_irs_operation(comm); delay1ms(1); //--- //now data is in DHR, //first DHR[7:0] to DIO addr = IRSP_HDR_70; //send the address of the target internal calibration register to IRSP addr |= WR_IRSP_30; max1452_irs_operation(addr); delay1ms(1); comm = CRIL_RdIRS; //send the DHR[7:0] to DIO comm |= WR_CRIL_30; max1452_irs_operation(comm); //--- AD_V_C_IOd=1; //AD_V_C_IO is input port //CNPD2bits.CN16PDE=1; //内部下拉 CNPU2bits.CN16PUE=1; //内部上拉 wait_time=0; do //wait I/O { error.max1452_3=0; if(wait_time++ >0x1000)error.max1452_3=1; //if no data go out ,then set error flag } while(AD_V_C_IO && !error.max1452_3); delay_4800(); for (i=0;i<8;i++) { dal>>=1; delay_9600d(); if (AD_V_C_IO==1) dal |= 0x80; else dal &= 0x7F; } AD_V_C_IOd=0; //CNPD2bits.CN16PDE=0; //内部下拉 CNPU2bits.CN16PUE=1; //内部上拉 delay1ms(2); //--- //now data is in DHR, //second read DHR[15:8] to DIO addr = IRSP_HDR_F8; //send the address of the target internal calibration register to IRSP addr |= WR_IRSP_30; max1452_irs_operation(addr); delay1ms(1); comm = CRIL_RdIRS; //send the DHR[15:8] to DIO comm |= WR_CRIL_30; max1452_irs_operation(comm); //---- AD_V_C_IOd=1; //AD_V_C_IO is input port //CNPD2bits.CN16PDE=1; //内部下拉 CNPU2bits.CN16PUE=1; //内部上拉 wait_time=0; do //wait I/O { error.max1452_3=0; if(wait_time++ >0x1000)error.max1452_3=1; //if no data go out ,then set error flag } while(AD_V_C_IO && !error.max1452_3); delay_4800(); for (i=0;i<8;i++) { dah>>=1; delay_9600d(); if (AD_V_C_IO==1) dah |= 0x80; else dah &= 0x7F; } AD_V_C_IOd=0; //CNPD2bits.CN16PDE=0; //内部下拉 CNPU2bits.CN16PUE=1; //内部上拉 delay1ms(2); data = (unsigned int)dah; data<<=8; data |= (unsigned int)dal; return(data); } //--------------------------------------------------------------------------- // MAX1452 SUBPROGRAMM // input: data_cp -- the data pointer of writed data // addr -- EEPROM MEMORY Page (0-B) // output:NULL //--------------------------------------------------------------------------- void max1452_epprom_write(unsigned char *data_cp, unsigned char page) { unsigned int addr; unsigned char addr0,addr1,addr2, comm; unsigned char data,data0,data1,i; data_cp += 3; //first erase page switch(page) { case 0: addr=0x000; addr2=0x00; addr1=0x00; addr