ADC readout to Decimal

**Kryten** · 29th March 2008 10:17 AM

Q1:
Do anyone here hav a "quick" code for making the BCD readout from ADC into a decimal number (kind of like Vref = 50A ) so it calculates for it self what to put in stead of BCD.

Q2: (In case anyone have a code)
If i have several different levels at the ADC
AN0: 5V = 50 A (enegry consumption)
AN1: 5V = 25 A (energy charging)
AN3: 5V = 14.4V (battery voltage)

Is it possibel to say that Vref is xx to AN0, yy to AN1 and zz to AN3

**richard.c** · 29th March 2008 10:41 AM

See the Piclist site for various converters

http://www.piclist.com/techref/A2DCodeGenerator.asp

**Kryten** · 29th March 2008 11:16 AM

Ok thats nice but i was thinknig of how to get the readout (either to LCD or MMC (using microC libs and compiler)) to dispaly that 5V on ADC = 50A and son on.
The piclist site is great (althou it gives out asm code) but not what Im looking for

**superbrew** · 29th March 2008 03:32 PM

Something like:

Code:

unsigned int input;
char display[8];
while(1){
     input = (adc_read(1)*50)/1023;
     inttostr(input,display);
     LCD_Out(display,0,0);
}

I am not at home so this is untested, but something like this will work.

**Kryten** · 31st March 2008 07:16 AM

The code is really nice. one Q:
Is it possible to exchange the LCD_out line with a constance?
like ADC1read ?

**superbrew** · 31st March 2008 01:05 PM

Do you mean:

Code:

LCD_Out(adc_read(1),0,0);

Then, no. The LCD_Out function is looking for an ASCII string, if you give it an int it will out put random characters.

**Kryten** · 1st April 2008 06:25 AM

No im using MicroC and are using the MMC lib. so i need the outputstring to be written to the MMC.

And im going to write the avrage of 600 samples (one minute), are there any easy way of doing this?

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