New C18 3.0+ Compatible FRC Code

[Kevin Watson]

Originally Posted by billbo911

I think someone needs to pull a high priority interrupt and put everything else you are doing on hold! This should be your top priority, cuz I said so.

Okay, here is a snapshot of the current build that includes support for encoders and gyro:

http://kevin.org/frc/ifi_frc_beta_4.zip

*Please* help me out and have a look at the code and documentation (start with readme.txt) and provide feedback before I go public with the code on my website, which I'd like to do on Friday or early Saturday. If you can, follow the directions in readme.txt to build the code and test with your encoder(s) and/or gyro and report any problems here. Thanks.

-Kevin


Edit: Code has been released and is available here: http://kevin.org/frc.

-Kevin

[Guy Davidson]

Originally Posted by Kevin Watson

Okay, here is a snapshot of the current build that includes support for encoders and gyro:

http://kevin.org/frc/ifi_frc_beta_4.zip

*Please* help me out and have a look at the code and documentation (start with readme.txt) and provide feedback before I go public with the code on my website, which I'd like to do on Friday or early Saturday. If you can, follow the directions in readme.txt to build the code and test with your encoder(s) and/or gyro and report any problems here. Thanks.

-Kevin

The link is broken. I'll be happy to test beta 4 once I can get my hands on it.

-Guy Davidson

[billbo911]

Originally Posted by sumadin

The link is broken. I'll be happy to test beta 4 once I can get my hands on it.

-Guy Davidson

New and edited link on the first page. Or, go to his web site. The full and simple versions are up.

[Jon236]

Kevin,

Now that I enabled the ISR's (grin) everything works fine. No need to include sonar code this year as the MaxBotix sensors have an analog output.

[comphappy]

Hmmm i dont know what the issue was, (i did have ISR enabled) I just now recompiled the code and loaded it, no issues. Serial communications issue on the load... I dont know.

[fffxc2]

Hello, this is my first year doing the programming on my team and we are having a very confusing problem. We are using an unmodified version of Kevin’s 2008 beta code with mplab v8 and c18 v3.1 and the code compiles fine and loads onto the robot fine, and it seems run on the robot, but the robot doesn't react at all. Its equally frustrating because when we load a copy of the 2007 code it works fine. It seems that no one else has had this problem (that I saw), though it seemed that Kevin referenced it in one of his posts.

the LEDs are green, but nothing happens

Any help we could get would be much appreciated.

[comphappy]

With out any code that is going to be hard to help you with, are you in teleop mode? What code do you have in your teleop function?

[Kevin Watson]

Originally Posted by fffxc2

Hello, this is my first year doing the programming on my team and we are having a very confusing problem. We are using an unmodified version of Kevin’s 2008 beta code with mplab v8 and c18 v3.1 and the code compiles fine and loads onto the robot fine, and it seems run on the robot, but the robot doesn't react at all. Its equally frustrating because when we load a copy of the 2007 code it works fine. It seems that no one else has had this problem (that I saw), though it seemed that Kevin referenced it in one of his posts.



Any help we could get would be much appreciated.

Because I don't know how you have your robot configured, you need to write this code yourself. Just open up teleop.c and scroll down to the teleop() function. Once there, you can map joystick inputs to motor outputs like this:

 
// map y-axis of the joystick on operator interface port #1 to the
// motor controlled by the Victor 883 attached to PWM output #1
pwm01 = p1_y;
 
// map y-axis of the joystick on operator interface port #2 to the
// motor controlled by the Victor 883 attached to PWM output #2
pwm02 = p2_y;

You can also use IFI's default robot code by uncommenting (remove the double slashes) in front of the call to Default_Routine() at the bottom of Teleop(). The code for Default_Routine() is located in ifi_code.c.

-Kevin

[Jon236]

Kevin,

Upgraded to the final 3.0 version....now I get a RLOD with just 1 encoder enabled.....what can produce this condition?

[Kevin Watson]

Originally Posted by Jon236

Kevin,

Upgraded to the final 3.0 version....now I get a RLOD with just 1 encoder enabled.....what can produce this condition?

Did you enable the ISR in ifi_frc.h?

-Kevin

[Jon236]

Originally Posted by Kevin Watson

Did you enable the ISR in ifi_frc.h?

-Kevin

Nope.....I knew we were missing something!

Thanx!

[Guy Davidson]

Originally Posted by Jon236

Kevin,

Upgraded to the final 3.0 version....now I get a RLOD with just 1 encoder enabled.....what can produce this condition?

Yeah, we got this same issue today when enabling another encoder. Maybe a comment next to the #define ENABLE_ENCODER_# is in order to remind people to enable the ISR in ifi_frc.h?

[1jbinder]

Hi Kevin,
We keep on getting a error that ADC_CH0 is not defined. This happens when we try to use rc_ana_in_01. We looked in all of the header files including the complier file and could not find the definition but it is clearly used in ifi_frc.h.This might be a stupid error but please can someone help us.
Thanks,
Julan

[Jon236]

Julan,

Did you define the number of channels in the adc.h file?

Kevin,

The code runs fine if called ifi_frc.hex.....if I change the project in the same subdirectory with all the same files, I get a stuck programming mode light.

So I won't every change the name, but I'd still like to know why this hapens!!

Jon

[1jbinder]

Yes I Did