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Ahh, OK thanks. Glad I asked then!

I thought (float)(equation involving vars) would convert all the vars inside the equation to be floats. No problem, I'll just make those vars signed.... in thi ...

Really quickly just to make sure I have this straight...

If I have:

unsigned int16 global_var = 2435;
myerror = function( 2048 )

int function( unsigned int16 local_var )
...

Also a single on/off switch will use a pull-up or pull-down resistor. Depending on the resistance value and other
circuit details, the multi-level switch function may be implementable without hardwa ...

So what I think I'm getting from the last few replies... is that it is possible (I figured that) but not without hardware modification, right?

I was hoping it could be done with the existing hardwa ...

Sometimes you put multiple switches on a single line by putting resistors in series with the switches to give different voltages against the common pull-up resistor. But this arrangement has to be re ...

As stated initially: I'm sorry... I'm not the engineer that designed it and I really have very limited knowledge of the electronics side. I have modest skills with the firmware programming though. M ...

Hi.

PIC18F4480

PIN_B4 input is connected to a simple momentary pushbutton switch and our code treats it as a simple on/off. Can it be used for a variable resistance type switch? I'm not sure e ...

Thanks again for your help. I just wanted to follow up in case it helps anyone else.

The code I showed above actually wasn't the problem. It certainly seemed like it because when I commented it o ...

Thanks for that. It must be something else then. I'll figure it out, thanks.

The code is mostly irrelevant anyway. At least to answer the question in the title: "Does read_eeprom need a delay". The code was there to show how read_eeprom gets called in rapid fashion ...

I'm trying to introduce code that will allow users of my device to modify certain variable values by sending messages via CANBUS to the device, which the device stores in EEPROM to be read when it pow ...

Thanks for the link. I'll check out the simulator.

Crap, I posted this a couple days ago and I was wondering why nobody was answering... now I see my post must not have taken :(

Anyway. I have a WDT issure.

PIC 18F4480

When I set WDT_OFF ( ...

I thought the initialization of it made it zero, but that's only for static. Thanks for correcting/informing me.

I'm confused about the behavior of my program as it relates to static variables.

In C , a variable declared as static is local to a particular function. It is initialised once and on leaving the fu ...