DS2760 with ATMega8535 and LCD 2X16

[dimas_lilik]

atmega8535 untuk lcd

Dear everybody..
Can help me ?
I want to display with LCD 2 X 16
please Help me

/***************************
DS2760 Interfacing
****************************/
#include <stdio.h> // printf(), uchar, uint, ....
#include <reg51.h> // CPU's interals
#include "1wire.h" // 1-wire device lib

/************************
Port Declaration
*************************/
// DS2760 port declaration at 1wire.c

/*******************************************************************
T-type (Copper/Constantan) thermocouple data (0C reference)
Author : Compiled by Parallax
Updated : 19 JAN 2004
********************************************************************/
const uint Cnv_table[401]=
{
/*T000*/ 0, 39, 78, 117, 156, 195, 234, 273, 312, 352,
/*T010*/ 391, 431, 470, 510, 549, 589, 629, 669, 709, 749,
/*T020*/ 790, 830, 870, 911, 951, 992, 1032, 1074, 1114, 1155,
/*T030*/ 1196, 1238, 1279, 1320, 1362, 1403, 1445, 1486, 1528, 1570,
/*T040*/ 1612, 1654, 1696, 1738, 1780, 1822, 1865, 1908, 1950, 1993,
/*T050*/ 2036, 2079, 2121, 2165, 2208, 2250, 2294, 2338, 2381, 2425,
/*T060*/ 2468, 2512, 2556, 2600, 2643, 2687, 2732, 2776, 2819, 2863,
/*T070*/ 2909, 2952, 2998, 3043, 3087, 3132, 3177, 3222, 3266, 3312,
/*T080*/ 3358, 3403, 3447, 3494, 3539, 3584, 3631, 3677, 3722, 3768,
/*T090*/ 3814, 3859, 3907, 3953, 3999, 4046, 4092, 4137, 4185, 4232,
/*T100*/ 4278, 4325, 4371, 4419, 4466, 4512, 4561, 4608, 4655, 4701,
/*T110*/ 4750, 4798, 4844, 4892, 4940, 4988, 5036, 5084, 5131, 5179,
/*T120*/ 5227, 5277, 5325, 5373, 5421, 5469, 5519, 5567, 5616, 5665,
/*T130*/ 5714, 5762, 5812, 5860, 5910, 5959, 6008, 6057, 6107, 6155,
/*T140*/ 6206, 6254, 6304, 6355, 6403, 6453, 6504, 6554, 6604, 6653,
/*T150*/ 6703, 6754, 6804, 6855, 6905, 6956, 7006, 7057, 7107, 7158,
/*T160*/ 7209, 7259, 7310, 7360, 7411, 7463, 7515, 7565, 7617, 7668,
/*T170*/ 7719, 7770, 7823, 7874, 7926, 7977, 8028, 8080, 8133, 8185,
/*T180*/ 8237, 8288, 8340, 8393, 8445, 8496, 8550, 8602, 8653, 8707,
/*T190*/ 8759, 8811, 8865, 8916, 8970, 9022, 9076, 9128, 9182, 9234,
/*T200*/ 9288, 9341, 9394, 9448, 9500, 9554, 9608, 9662, 9714, 9769,
/*T210*/ 9822, 9875, 9929, 9984, 10038, 10092, 10146, 10200, 10253, 10307,
/*T220*/ 10362, 10416, 10471, 10525, 10580, 10634, 10689, 10743, 10798, 10852,
/*T230*/ 10907, 10961, 11016, 11072, 11127, 11182, 11237, 11291, 11346, 11403,
/*T240*/ 11458, 11512, 11569, 11624, 11679, 11734, 11791, 11846, 11902, 11958,
/*T250*/ 12012, 12069, 12125, 12181, 12237, 12293, 12349, 12405, 12461, 12518,
/*T260*/ 12573, 12630, 12686, 12743, 12798, 12855, 12912, 12968, 13025, 13082,
/*T270*/ 13139, 13195, 13253, 13310, 13365, 13423, 13480, 13537, 13595, 13652,
/*T280*/ 13708, 13766, 13823, 13881, 13938, 13995, 14053, 14109, 14168, 14226,
/*T290*/ 14282, 14341, 14399, 14455, 14514, 14572, 14630, 14688, 14746, 14804,
/*T300*/ 14862, 14919, 14977, 15035, 15095, 15153, 15211, 15269, 15328, 15386,
/*T310*/ 15445, 15503, 15562, 15621, 15679, 15737, 15797, 15855, 15913, 15973,
/*T320*/ 16032, 16091, 16149, 16208, 16268, 16327, 16387, 16446, 16504, 16564,
/*T330*/ 16623, 16682, 16742, 16801, 16861, 16920, 16980, 17039, 17100, 17158,
/*T340*/ 17219, 17278, 17338, 17399, 17458, 17518, 17577, 17638, 17698, 17759,
/*T350*/ 17818, 17879, 17939, 17998, 18059, 18120, 18179, 18240, 18301, 18362,
/*T360*/ 18422, 18483, 18542, 18603, 18664, 18725, 18786, 18847, 18908, 18969,
/*T370*/ 19030, 19091, 19152, 19213, 19274, 19335, 19396, 19457, 19518, 19579,
/*T380*/ 19641, 19702, 19763, 19824, 19885, 19946, 20009, 20070, 20132, 20193,
/*T390*/ 20255, 20317, 20378, 20440, 20501, 20563, 20625, 20687, 20748, 20810,
/*T400*/ 20872
};

/*************************************************
Constants & Global variable
**************************************************/
const uchar readnet=0x33; // read OW net address
const uchar skipnet=0xcc; // skip OW net address
const uchar rdreg=0x69; // read register

/*near uchar idx; // loop counter (4-bit)
near uchar type; // device type (4-bit)
near uchar char_; // display byte/char
near uint vIn; // in millivolts */
near uint tmpCJ; // device temp in C
near uint tCuV; // thermocouple millivolts
near uint sign; // TC sign bit
near uint cjComp; // temp compensation
near uint tempC; // temp in Celsius
near uint tblLo, tblHi, eePntr; // table pointers
near uint testVal; // test value from table
near uchar error; // 1 = out of range (1-bit)
//near uchar store8; // 8-bit buffer

/**********************************************
Subroutines
***********************************************/

/* Inisialisasi UART @ 9600 bps, 8-N-1 */
void init232(void)
{
TMOD=(TMOD&0x0F)|0x20; // Timer 1 Mode 2 (Auto reload)
SCON=0x52; // Serial Mode 1 (8-bit UART), REN=1 (Receiver Enable)
// TI=1 (Transmit buffer empty)
PCON=PCON&0x7F; // SMOD=0 (Double baud rate disable)
TH1=0xFD; // 9600 bps (11,059 MHz)
ET1=0; // Disable Timer 1 interrupt
TR1=1; // Timer 1 Run
}

/* Reads current register to get TC voltage
-- each raw bit = 15.625 uV
-- tCuV in microvolts */
void Read_TC_Volts(void){
uchar buf;
uint buf16;
ow_reset(); // read current register
ow_writebyte(skipnet);
ow_writebyte(rdreg);
ow_writebyte(0x0e);
tCuV=ow_readbyte();
buf=ow_readbyte();
ow_reset();
tCuV<<=8;
tCuV+=buf;
sign=tCuV>>15; // save sign bit
tCuV>>=3; // correct alignment
if(sign==1){
tCuV|=0xf000; // pad 2's-compliment bits
tCuV=~tCuV; // tCuV= -tCuV
tCuV+=1;
}
/* tCuV*=156; // x 15.625 uV
tCuV/=10; */
/* tCuV x 15.625 uV == (tCuV x 15) + (tCuV x 0.625) */
buf16=tCuV*15; // tCuV x 15
tCuV*=5; // tCuV x 0.625 == (tCuV x 5) / 8
tCuV>>=3;
tCuV+=buf16;
}

/* Reads cold junction (device) temperature
-- each raw bit = 0.125 degrees C
-- returns tmpCJ in whole degrees C */
void Read_CJ_Temp(void){
uchar buf;
ow_reset();
ow_writebyte(skipnet);
ow_writebyte(rdreg);
ow_writebyte(0x18);
tmpCJ=ow_readbyte();
buf=ow_readbyte();
ow_reset();
tmpCJ<<=8;
tmpCJ+=buf;
if(tmpCJ>=0x8000){ // check sign
tmpCJ=0; // disallow negative
}else{
tmpCJ>>=8; // >> 5 x 0.125 (>> 3)
}
}

/* Search currently selected TC table for nearest entry
-- uses modified binary algorithm to find cjComp
-- high end of search set before calling (tblHi)
-- successful search sets tempC */
void TC_Lookup(void){
tblLo=0; // low entry of table
tempC=22; // default to room temp
testVal=Cnv_table[tblHi]; // check max temp
if(cjComp>testVal){
error=1; // out of range
}else{
while(1){
eePntr=(tblLo+tblHi)/2; // midpoint of search span
testVal=Cnv_table[eePntr]; // read value from midpoint
if(cjComp==testVal){
goto exitTC; // found it!
}else{
if(cjComp<testVal){tblHi=eePntr;} // search lower half
else {tblLo=eePntr;} // search upper half
}
if((tblHi-tblLo)<2){ // span at minimum
eePntr=tblLo;
goto exitTC;
}
}
exitTC:
tempC=eePntr;
}
}


/*******************************************
MAIN: Start here!
********************************************/
void main(void){
uchar i;
uchar ID[8];

/* Inisialisasi UART */
init232();
/* Check_Device */
if(!ow_reset()){ // get serial number
printf("No Presence!\n");
goto exitMain;
}
ow_writebyte(readnet);
for(i=0;i<8;i++){
ID=ow_readbyte();
}
ow_reset();
printf("ID = ");
for(i=0;i<8;i++){
printf("%X",ID);
}
printf("\n");
if(ID[0]!=0x30){ // if not 0x30, wrong device
printf("Wrong 1-Wire device!\n");
goto exitMain;
}

/* Measure Temperature */
while(1){
error=0;
Read_TC_Volts(); // read Seebeck voltage
Read_CJ_Temp(); // read cold junction temp
cjComp=Cnv_table[tmpCJ]; // get compensation voltage
/* combine cjComp and tCuV */
if(sign==1){
/* TC below cold junction */
if(tCuV<cjComp){
cjComp-=tCuV;
}else{
cjComp=0; // limit to 0 C
}
}else{
/* TC above cold junction */
cjComp+=tCuV;
}
tblHi=400; // set high end of search
TC_Lookup(); // reverse lookup of table
if(error==0){
/* display tempC */
printf("Temp = %u C\n", tempC);
}else{
/* Out of Range */
printf("Out of range!\n");
goto exitMain;
}
ow_waitms(1000);
}
exitMain:
while(1){};
}

/* END */

 

[dimas_lilik]

Many Thank's for all.
now, I can program DS2760 with Atmega8535 and LCD 2X16

May be this useful to every body

Than's