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Thanks for all your help guys. I will keep your pointers in mind for the future.

I have found the problem I was having. It is a logical problem related to interrupts taking place but has nothing ...

I was just thinking because this problem happens only intermittently, maybe its to do with timing of some type.

Is there a need for me to do some interrupt priority handling, for example the int_rb ...

Thanks for the reply.

So, I tried removing the disable/enable interrupts inside the INT_RB isr but that didn't make any difference. I also tried adding an input_b(); at the end of the isr with no ...

Hi,
I seem to be having an unusual problem. It seems as though I have an intermittent problem with code being executed inside the #int_RB isr. Intermittently I notice that some of the code does not ...

Thanks a lot for your help, it seems to be fairly robust now. So, removing the enable global from the isr definitely did it!

Yes, I :

enable_interrupts(int_rb);
enable_interrupts(global);

inside the isr. Shall I just get rid of the global and keep the int_rb inside the isr, or should I delete ...

Ok so tried doing that and I haven't seen any resets while just sitting in a loop....I only read a NORMAL_POWER_UP once and thats it. I've been running it for more than 30 mins and haven't seen a res ...

Also, interestingly enough, I do not see this intermittent problem if I just keep the program running forever. The problem only occurs when I introduce a hardware interrupt on the RB4-RB7 pins (inter ...

So I read thru all those previous posts and used the restart_cause() function to find out exactly why my reset it happening. And interestingly enough, its because of a RESET_INSTRUCTION.

So, first ...

Ok thanks, I will try your suggestion....also the links are very helpful, I will try a few things soon

Hi All,

I have a a very weird and frustrating problem happening. I am using a PIC18F6722. The problem is that sometimes the PIC gets reset for some unknown reason.

The nature of the reset taki ...

Thanks for the reply. I would have taken that approach as well however I do not have the flexibility to add an external eeprom right now....

Are there any code examples of storing 2D structures ...

Hi Everyone,

I'm trying to store a 32 x 60 structure with 3 int elements somewhere on a PIC18F8722. It is not too important to me where this gets stored as long as I can access/(re)write to the co ...

So I tried doing that and it still loads down the voltage. It's a hardware problem. I tried it on another PIC and now it responds to the interrupts and the voltage is 5 V as expected on RB0. I thin ...

Hi,
This is really weird because the code below was working a while back, but when I tried incorporating it with some other code, it kept on generating interrupts even without any pin connected to RB ...