LCD display value no response??

[be80be]

Well I i had to work so that means I had to start sleeping more LOL . You are using newer Hi-tech then me so I upgraded mine.
I 'll post you some thing tonight as when

Your configure was wrong I think you new that but you use isis it uses it's own configure. They changed a lot with hi-hech v9-65. The code I posted just needs the function fixed that returns the adc value.

 

[haowhaow]

okok thankz alot....appreciated it much~

 

[haowhaow]

Well I i had to work so that means I had to start sleeping more LOL . You are using newer Hi-tech then me so I upgraded mine.
I 'll post you some thing tonight as when

Your configure was wrong I think you new that but you use isis it uses it's own configure. They changed a lot with hi-hech v9-65. The code I posted just needs the function fixed that returns the adc value.

how is the code going??if my code change become as shown below....but my calculation was wrong...i cant get the reading display as the thermocouple temperature....
for example...
thermocouple show 100 C but the display cant show exact 100 C.....
how i going to calculate it??

#include <htc.h>
#include <math.h>

#include "lcd.h"
__CONFIG(1, FCMDIS & IESODIS & XT);
__CONFIG(2, BORDIS & BORV45 & PWRTEN & WDTDIS & WDTPS1);
__CONFIG(3, CCP2RB3 & LPT1DIS & MCLRDIS & 0xFDFF);
__CONFIG(4, DEBUGDIS & XINSTDIS & LVPDIS & STVRDIS);

//Simple Delay Routine
void Wait(unsigned int delay)
{
for(;delay;delay--)
__delay_us(100);
}
void ADCInit(void){
ADCON0=0b00000001; // select Fosc/2
ADCON1=0b00001110; // select left justify result. A/D port configuration 0
ADCON2=0b00001010;
}
unsigned char read_adc(unsigned char ){
ADON = 1; // initiate conversion on the selected channel
GODONE=1 ;//Start conversion
while(GODONE= 1)continue;
return(ADRESH); // return 8 MSB of the result
}
void main()
{
//Let the LCD Module start up
Wait(100);

//Initialize the LCD Module
LCDInit(LS_BLINK);

//Initialize the ADC Module
ADCInit();

//Clear the Module
LCDClear();

//Write a string at current cursor pos
LCDWriteString("Temperature:");
LCDWriteStringXY(5,1,"Degree C");


while(1)
{
unsigned int val;
unsigned int t; //Temperature

val=read_adc(); //Read Channel 0

t=round(((val*4750)/1023)/10);

LCDWriteIntXY(0,1,t,3);//Prit IT!


Wait(1000);

}
}

 

[be80be]

haowhaow your using isis you need to change t=round(((val*4750)/1023)/10);
to this t=round(((val*5000)/1023)/10);

In real life Vdd may not be 5 volts but with ISIS it's 5 volts

 

[haowhaow]

haowhaow your using isis you need to change t=round(((val*4750)/1023)/10);
to this t=round(((val*5000)/1023)/10);

In real life Vdd may not be 5 volts but with ISIS it's 5 volts

ohh.....but cant get the reading also...can u help me figure out??

 

[be80be]

What are you getting

 

[haowhaow]

What are you getting

100 C i js get 1 C
107 C only get 2 C
115 C only get 3 C......

u got my file there right???can u help me try and c??
btw when i build my project(F10)....is failed..but if rebuild again then will successful d....
is that mean anything???

 

[be80be]

I just have the demo of ISIS that plugs in MPLAB it will not let you change parts

 

[haowhaow]

I just have the demo of ISIS that plugs in MPLAB it will not let you change parts

oh....then what should i do next??

 

[be80be]

If you could get Atom to run it I think he has the full ISIS

 

[haowhaow]

If you could get Atom to run it I think he has the full ISIS

ohhh....oh ya that day u help me figure my coding...how is the result??can it been solveD?

 

[be80be]

I tested it on hardware LCD pic 18f452 I didn't have a 4520 and i used the lm35 it 10mv per1C

 

[haowhaow]

I tested it on hardware LCD pic 18f452 I didn't have a 4520 and i used the lm35 it 10mv per1C

can it been work??it mean my coding now is probably is ok d....js left the calculation part right??

 

[be80be]

your code looks ok what temperature sensor you using

 

[haowhaow]

your code looks ok what temperature sensor you using

im using thermocouple type K......but i wonder how to get my calculation correctly....

 

[be80be]

You should be getting the right value to display it works right on real hardware

 

[haowhaow]

You should be getting the right value to display it works right on real hardware

in read device..my lcd display is blank only....may i know why?? im using hitech compiler...can i use pickit2 to load my hex file??
after i had imported my hex file...it come out a warning sign state as " some configuratiomn words not in hex file. ensure default values above right are acceptable"

 

[be80be]

You can export them in mplab

 

[haowhaow]

You can export them in mplab

but in real device my display js blank....lcd js got back light only.....what is the probability false?