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  Topic: Multiple compilation units
picman62

Replies: 4
Views: 8358

PostForum: General CCS C Discussion   Posted: Tue Feb 24, 2015 10:51 am   Subject: Multiple compilation units
Thanks for clarifying this.
  Topic: Multiple compilation units
picman62

Replies: 4
Views: 8358

PostForum: General CCS C Discussion   Posted: Tue Feb 24, 2015 4:47 am   Subject: Multiple compilation units
Hi.
When is it an advantage to create a project with multiple compilation units and how effective is it compared to building a regular single project?
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Sat Feb 14, 2015 3:56 am   Subject: Interrupt affecting main code
What a shocker. Of course. 'PER_SECOND' should be fixed since this is what determines the value for the counter. All that was required was a variable to set led_count a rate. Enter led_time.

Regar ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Fri Feb 13, 2015 4:14 pm   Subject: Interrupt affecting main code
Start using your brain a bit.

All you need to do is set the LED rate with a global variable, instead of with a define. Change the value of this variable in your main.

Ok, this part I understood. ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Fri Feb 13, 2015 1:59 pm   Subject: Interrupt affecting main code
Hi, Ttelmah,
One last help buddy.
Considering your code below which I made slight changes to fit the LED rate for my purposes:

#define PER_SECOND 126
int8 count;
#int_timer0
void TimerLED( ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Fri Feb 13, 2015 6:24 am   Subject: Interrupt affecting main code
Thanks, I will try this.
Best regards.
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Thu Feb 12, 2015 5:50 am   Subject: Interrupt affecting main code
Please, disconsider what I have said above.
This offset was from PT simulator. Before leaving home now, I did it with the protoboard and it was fine. Reading 4999-5000Hz.

Since we are into this, o ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Thu Feb 12, 2015 5:28 am   Subject: Interrupt affecting main code
First, thank you very much.

Your original 'per second value'

#define PER_SECOND 125

was displaying an offset in the frequency value. 5000Hz signal was shown as 4960Hz.
I changed this value t ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Thu Feb 12, 2015 4:00 am   Subject: Interrupt affecting main code

You need to marshal your thoughts.
Make a simple, clear, concise list of what needs to happen.
Show us the latest version of your code.
Explain what works and precisely what is wrong with what do ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Wed Feb 11, 2015 2:35 pm   Subject: Interrupt affecting main code
Yes, I don't know enough C to solve my problems. But I am striving. I knew nothing in early december. Thanks to some reading in this forum, today I am in the end part of my first code which is not so ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Wed Feb 11, 2015 8:21 am   Subject: Interrupt affecting main code
I wrote another code only featuring the timer0 interrupt and the counter instruction in the main. It worked now.
I used Ttelmah's code, but another similar code also worked.

#include <16f877a. ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Tue Feb 10, 2015 6:56 pm   Subject: Interrupt affecting main code
Well, I spent all day away from my protoboard and was simulating everyting in PT.
I just got home and put the code to test in the hardware. Actually the frequency counter is indeed working. But not t ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Tue Feb 10, 2015 5:35 pm   Subject: Interrupt affecting main code
Thanks, you're right. Should be 256 max. I was playing with the led rate and got lost in the value limit.

I just set it to 6 (256-6), but no change. Frequency counter offset value decreased but sti ...
  Topic: Interrupt affecting main code
picman62

Replies: 25
Views: 28712

PostForum: General CCS C Discussion   Posted: Tue Feb 10, 2015 4:43 pm   Subject: Interrupt affecting main code
I've got a problem with a frequency counter not working right when the LED starts blinking.
I have this LED in a TIMER0 interrupt and the frequency counter in the main code. When the interrupt is exc ...
  Topic: Timer1 in RC0 and RC1
picman62

Replies: 81
Views: 84439

PostForum: General CCS C Discussion   Posted: Thu Jan 29, 2015 8:13 pm   Subject: Timer1 in RC0 and RC1
I think I might have found something that I believe it's not included in the guidelines. It relates to Proteus.
I changed the delays of the LEDs making them longer and the PWM pulses shorter. The LEd ...
 
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