Lpc2000

Hi,

Thanks very much for your help.

I tried out the code you sent and it works perfectly!

Best regards,

Daniela.


--- In lpc2000@yahoogroups.com, "Fuentes Rodriguez, M.E." <mef6@l...> 
wrote:
> here's the code im using:
> 
> for setting it up, using a PCLK of 60Mhz
> 
> ADCR = 0x00210E01;  set up ADC AIN0, @PCLK/15 =4MHz, 10bit
> ADCR ¦= 0x01000000;
> 
> to read the ADC:
> int value;
> if (ADDR & 0x80000000)	// wait for the conversion to finish
> {	
> 	value = ADDR;	
> 	value = ((value>>6) & 0x03FF); // extract the data
> }
> 
> 
> and thats it... dont forguet to set up the pin as ADC.
> 
> 
> 
> -----Original Message-----
> From: daniela_boyo [mailto:dob3@l...]
> Sent: 02 September 2004 12:24
> To: lpc2000@yahoogroups.com
> Subject: [lpc2000] A/D converter of LPC2129
> 
> 
> Hi everyone,
> 
> I'm having some problems with using the A/D converter of the 
LPC2129 
> ARM board. I'm interfacing the board with an LM35DZ temperature 
> sensor which has an output voltage proportional to the required 
> temperature (eg 0.68V is equal to 68 degrees C).
> 
> I have set up the A/D control as follows:
> 
> ADCR  = 0x00270601
> ADCR |= 0x01000000
> 
> Is the above set up suitable? Also, assuming I have gotten a value 
> from the A/D data (ADDR), how do I extract this value and get a 
> suitable value for the temperature (i.e. if analogue input is 0.25V 
> for instance)?
> 
> I would greatly appreciate it if someone can help me with this or 
if 
> someone is willing to share some example code.
> 
> Thank you!
> Daniela.
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links