Unknown Blinky-light type Errors.

[Astronouth7303]

Originally Posted by Mark McLeod

I'd need to see the whole project to track a problem like this one down.
I'd also like to know what external sensors you have hooked up and the theoretical (or actual) interrupts per second you expect.

Currently, we have just the drive train and encoders hooked up. I'm using primarily the Navigation/camera code. The generated doxygen version can be found (hopefully) at http://endeavour.zapto.org/astro73/tgdocs/.

The ZIP version is at http://endeavour.zapto.org/astro73/tg_2005.zip. I couldn't get it under 100 KB.

[Astronouth7303]

(see my other post for other half.)

The problem seems to be fixed by removing the double calls to OpenADC(). Check gyro.c and ifi_utilities.c for the implementation.

[Mark McLeod]

So you found and solved the problem.
That's good news!

[Kevin Watson]

Originally Posted by Astronouth7303

(see my other post for other half.)

The problem seems to be fixed by removing the double calls to OpenADC(). Check gyro.c and ifi_utilities.c for the implementation.

You're using gyro code that is two revisions behind. I would dump that code and use the latest. BTW, what was the problem (I'm having trouble keeping track of the various CD and e-mail discussions I've got going)? Was it something knuckleheaded I was doing?

-Kevin

[Astronouth7303]

Originally Posted by Kevin Watson

You're using gyro code that is two revisions behind. I would dump that code and use the latest. BTW, what was the problem (I'm having trouble keeping track of the various CD and e-mail discussions I've got going)? Was it something knuckleheaded I was doing?

-Kevin

Sorry, I didn't make either post very clear.

In the old version of the gyro code, the initialize function would call OpenADC() but not CloseADC(), leaving the A/D converter open. If you wanted to get an analog value by calling IFI's function, it would also call OpenADC(), which is probably bad, and CloseADC(), also bad. The interupt that handled the gyro doesn't call anything other than to get the value. The only way this would work is if Microchip's code kept track of nested Opening/closing of the ADC.

The way I solved this is that I put Set_Analog_Channels() in an Initialize_Analog_Channels() (or similar) call, which would call OpenADC(). Then I changed Get_Analog_Value() so it set the analog channel without opening/closing. I also changed the Gyro interupt so that it would switch channels as well.

I haven't checked this yet for the new code, I'm in the process of merging them. And a few of the function names are probably wrong.