Hi Guys

Me again with the same problem on a different project.

I have built the hardware for, the PIC-Gen EPE July 2000, about 4 months ago and would like to finish it off. But I have the same problem that MPlab is not compiling the EPE asm code. Once again can any one help please?

Is their a compiler that can compile the code to hex, available from some where on the web, or maybe laying in a computer some where.

Tanks for your help.

Virus

@Brevor

MOOD CHANGES ?, you have no idea how this thing can swing your mind !

Attached Files

PIC-Gen.asm (22.4 KB, 11 views)

 

It's not MPASM compatible code, it's written using a Shareware assembler. If you download Toolkit3 from EPE, it includes routines for converting between formats.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

Hi Nigel

I have looked on the epe site but could not find the link to any one of their toolkits. Will look again !

What is the .obj file ?

Thax Virus

 

Look under 'Downloads' then 'All PIC Microcontroller source codes', there's 'PIC Toolkit TK2' and 'Toolkit TK3 updates', you can also download TASM the assembler they used.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

Nigel

Thanx, I got it, can I bug you later on, if I don’t get it working ?

(Taking a shot in the dark here) Do you know where they stored their supplementing articles, I can’t find the library link they refer to. There is one on How to get TK3 running under WinXp.

Thanx

Virus

 

Nigel

Thanx, got TK3 running, just need to figure it out, so this can do the TASM to hex?

Thanx

Virus

 

I think so, and the Toolkit can also convert the source code between the different formats.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

Nigel

I programmed the chip and verified the data again.. But it is as dead as a doornail when plugged into the PCB. There is 5V+ and 5V- as required.

I is a Pic16F877 it is run with a 3.2768 Mz crystal, is it XT mode ?

Can the programmer verify the data correctly in a PIC if the pic is faulty?

How can I check if the chip is starting up ?

Sorry for all the Q&A.

Virus

 

There are a few reasons why the file might not work. Orging the code at location 4, assuming decimal radix, not having a config value etc.

Here is a cleaned up version that will compile in MPLAB.

Mike.

Attached Files

PIC-Gen.asm (32.9 KB, 6 views)

 

Mike Morning

I have 0 programming experience.

I did use TK3, and converted the code to MPSAM, used MPLAB complied the code with 0 errors, programmed the chip, and it is not working.

Attached code as converted by TK3 for MPasm.

The DIY128 programmer that I use does not give me all the switches (fuses) options that the TK3, and the project suggest that need to be set.

Can the switches be set in software ?

I believe the chip does not startup, in the construction check out they state that if the LCD is connected with only the power regulator IC’s that the LCD will only have 1 line displaying. The LCD only displays 1 line as in the checkout, with the PIC F877 plugged in it still stays the same, also none of the controls interfacing with the F877 is working, because measuring the output socket I can read the same value as the MAX038 is generating on PIN19.

Can the F877 be dead ?, how do I test it, but it then would not program right ?

Any suggestions where to start, I have checked and dubbel checked the hardware.

Thanks

Virus

Attached Files

PIC-GEN_M.ASM (36.6 KB, 5 views)

 

Mike

Thanks, haven seen the attachment. Will do necessary, and get back.

Thanx

Virus

 

Mike

The code does not complie to HEX and either in TK3 or in MPLAB.

It is a PIC16F877 not A, would that make a difference

Virus

 

You need to change these three lines and then it should compile,
And, of course, select the 16F877 on the configure menu.

Mike.

 

Mike / Nigel

A cold one on you guys, or maybe just for Mike and myself, Nigel must be freezing up their.

Thanx it seems to be working fine, The F877 is controlling the Max038 etc. Still 0 on the LCD, but I think it is wiring and will sort it out and get back with a photo or two.

I need more info though. The PICGEN is giving me a square, tri and sine wave with + and – values as seen on the scope. How can this be changed to just positive offset, software?, or need it be done with a 555 or something similar that can handel 0.1 Hz to ± 4Mtz. From their I want drive a couple of mosfets (have plenty of IRF540) to drive a air coil at 24volt ± 5-10 amps.

Any suggestions or should I post it some where els.

Thanx

Virus

 

Good to hear it's finally working.

Have you a link to the circuit diagram?

Mike.