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  Topic: Internal Oscillator not working at 64mhz
doctorprox

Replies: 7
Views: 11624

PostForum: General CCS C Discussion   Posted: Tue Nov 26, 2013 5:42 am   Subject: Internal Oscillator not working at 64mhz
Thank you for the help, that does appear to work correctly. It seems that the compiler gets confused with the setup_oscillator function.
  Topic: Internal Oscillator not working at 64mhz
doctorprox

Replies: 7
Views: 11624

PostForum: General CCS C Discussion   Posted: Mon Nov 25, 2013 12:18 pm   Subject: Internal Oscillator not working at 64mhz
Version 5.007.

I had a play with those settings, by removing the setup_oscillator from main() and just having this:


#FUSES INTRC_IO
#FUSES PLLEN
#use delay(internal=64MHz)

It r ...
  Topic: Internal Oscillator not working at 64mhz
doctorprox

Replies: 7
Views: 11624

PostForum: General CCS C Discussion   Posted: Mon Nov 25, 2013 11:39 am   Subject: Internal Oscillator not working at 64mhz
Thank you for the suggestion, I tried adding the code but unfortunately it appears to run at 8mhz. I'm wondering if there is a compiler problem with the k22 pic? Surely though if osccon is right it ha ...
  Topic: Internal Oscillator not working at 64mhz
doctorprox

Replies: 7
Views: 11624

PostForum: General CCS C Discussion   Posted: Mon Nov 25, 2013 10:18 am   Subject: Internal Oscillator not working at 64mhz
Hi there,
I have been playing with this for the last 6 hours now trying to get it to work and it's driving me over the edge.

I want to run a PIC18F13k22 at its 64mhz internal oscillator (16mhz 4xP ...
  Topic: 18F14K22 very inaccurate ADC
doctorprox

Replies: 5
Views: 7627

PostForum: General CCS C Discussion   Posted: Tue Nov 09, 2010 4:35 pm   Subject: 18F14K22 very inaccurate ADC
The power supply is actually a PC PSU, probably not the best of supplies.

Anyhow, the input to the ADC was a 1Mohm pot. I have replaced this with 100ohms and the results now seem spot on. Cheers PC ...
  Topic: 18F14K22 very inaccurate ADC
doctorprox

Replies: 5
Views: 7627

PostForum: General CCS C Discussion   Posted: Tue Nov 09, 2010 3:45 pm   Subject: 18F14K22 very inaccurate ADC
Seems my multimeter was affecting the input voltage somehow. Changed multimeter and it appears to now be fluctuating around +-2%.

Not ideal since i may aswell be using 8bit in that case. Could thi ...
  Topic: 18F14K22 very inaccurate ADC
doctorprox

Replies: 5
Views: 7627

PostForum: General CCS C Discussion   Posted: Tue Nov 09, 2010 3:20 pm   Subject: 18F14K22 very inaccurate ADC
Hi all.

I have tried everything to get the ADC on this chip working correctly but it just wont.
It seems to be around 20% out, ie. 2.5v in reads in on the ADC as about 3.1v, and fluctuates all o ...
 
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