Help ADC

[#1]

hello..
can anyone kindly teach me step by step how to read the value ADC from a LDR?
I am very new to this, so I hope anyone can teach me step by step.. I am using MicroController XMC2GO
thanks alot!

[#2]

Hi Squall,

I dont really get what you mean by 'LDR' but to read the ADC value, all you need to do is read the value from the result register, GLOBRES.RESULT

[#3]

Hi Jackson.

Thanks for the reply Jackson. I appreciate it..

What i mean by LDR is Light Dependent Resistors, but it does not matter actually, the point is how to read adc value.

hmm.. where can i find the result register, GLOBRES.RESULT?

thanks before for ur explanation!

[Eric1]

Hi Squall,

you can use the App API (if you are using APPs), or direct register access:

uint16_t result=0;
result = VADC->GLOBRES & VADC_GLOBRES_RESULT_Msk;

In the debugger you can find it in the upper right.
select for Group: VADC

Then VADC.GLOBRES. Right bottom you will find RESULT: ...


Regards
Eric

[Travis]

Hi,

You can find more information on how to use the ADC from here ..

http://www.infineonforums.com/threads/1812-XMC_HOT-XMC4500-How-to-do-ADC-Queue-source-conversion