[SOLVED] I2C Communication to read temperature

[imroun1992]

Hello,

I am using Keil µVision 4 to program MCB 4357 Development Board. I want to read out the temperature of LM75 thermometer with I2C protocol.
But I don't know how can I establish I2C communication with LM75. I have header files to write c code but i don't know how it programming.

THE LM75 ADRESS IS 0x48. Anyone to help me to write c code to read out temperature, this is first time that i program a microcontroller. It will be useful for me that anyone show me how write a program to intialize I2C and read out temperature

Kind regards

 

[Mondalot]

Hello,

I don't understand C sorry,
But first you must send the address:10010001 (View Data Sheet Table.1).
and then the read command "0x00" Read only (View Data Sheet Table.2)
My Code Work ..

-----------------------------------------------------
Dim Temp as Word
I2CREAD PORTB.1, PORTB.3,%10010001 ,0x00, [Temp]
Print $fe,1,DEC5, Temp 'Out Display

 

[imroun1992]

Hello,

Thanks You but i'm a novice in programming can you write for me a program in c language a program which read temperature and display ... This is first time i use MCB4357 DEV BOARD I don't know how to use it ..

I wrote program but this don't work :

#include <LPC43xx.h>                    
#include "GLCD.h"
#include "I2C.h"
#include "TH_LM75.h"
#include <stdio.h>


int main (void) {

  
	GLCD_Init(); 	          							
	I2C_Init();														
	TH_Init();	

TH_DATA Temp;														
	
 while (1) {

I2C_Start();
TH_GetTemp(&Temp);
 }
}

Anyone here to write program in c language to establish I2C Communication with LM75 ??

please help me


Kind regards

 

[Mondalot]

I'm Sorry did not know anything about C.

I hope this helps you:
**broken link removed**

 

[imroun1992]

Hello,

"Mondalot" it's ok but I am adressing to all people in this forum i heard that edaboard helps every problem in programming..

 

[Mondalot]

Look especially in the subroutine: int lm75_GetTemperature(void)

 

[imroun1992]

Hello,

this is useful but this is not the same programming for my MCB4357 DEV BOARD. look at the two files that i included in the first post. can you write a program in c or if you dont know can you ask to other forum people