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GET RID of the comments on the same line as the #DEFINE
only define text up to the carriage return for compat with older compilersI don't agree with this suggestion. Perhaps there once were buggy ...

For the used input pins have a look at this code line:set_adc_channel(channel);Then, look in the manual for this function and you find:Syntax: set_adc_channel (chan

The channels are define ...

Your code has a lot of duplication which makes your program very long and difficult to maintain. Just a tiny change to one of the switch readings means you'll have to copy this code modification 16 ti ...

For a good advice we need a lot more details about your project, like:
- What is your project about?
- What processor types do you have experience with?
- Why do you want to use a PIC processor?
- ...

@drolleman: A 3D printer involves a bit more than just processing the G0/G1 commands. There is route planning, PID based temperature control of heated bed and nozzle, reading thermocouples, LCD screen ...

Be more specific.
The code used in the mentioned RepRap derived printers is open source and available from Github. My guess is you know this and that this isn't what you are looking for.
But, if thi ...

I had a quick look at all the posted links and documents.
Please note that the board has both an RS232 level output and also a TTL level output. Perhaps this is where a lot of confusion comes from?
...

One big difference between CCS and Visual Studio is how a float is represented internally. Just a simple search on the internet found me the following link: https://www.ccsinfo.com/forum/viewtopic.php ...

There are a lot of problems in this project. Some are bugs, some are poor design decisions and there is a general feel of disinterest (for example the unreadable posted schematic).

The fact that al ...

Maybe my compiler is too old I have version 4.018 I'm surprised nobody else remarked on this. The first releases of the v4.xxx series of compilers were very bad, only around v4.075 the compiler became ...

Please don't change your original post so much. Now we can't see what changes you made to improve your program. Leave the original text as it is and post a new reply in this thread when you make chang ...

I haven't checked the rest of your code, but one possible error is that your portB interrupt routine is not reset. At the start of your main routine you have this line: temp=input_b(); //you ...

void sensor(int sensor) //define sensor function
I also suggest you change these names to be more in line with the actual function they perform:void move(int direction) // Set mo ...

Thanks for sharing your code and putting in all the effort.

Just a few remarks, not related to your issue but will make you a better programmer:
1) Using the goto command is considered bad program ...

#use rs232(baud4800,parity=N,xmit=pin_c6,rcv=pin-c7,bits=8,TIMEOUT=200,STREAM=rs232_AT,BRGH1OK,DISABLE_INTS)Is this actual code? pin-c7 should be pin_c7
Besides, it is good practice to writ ...