Simulator

ibwev · Aug 15, 2011

I have written a program in assembly on PIC16F690 that works great in the MPLAB Simulator. However, the program does not do what I expect it to do when I program the pic and assemble the device. Please recommend a simulator that allows me to go line by line in the code and test the device in real time.

rmain1972 · Aug 15, 2011

What are you trying to do specifically? Can you post your assembly program and a schematic?

DerStrom8 · Aug 15, 2011

I would recommend using a PICkit2. It runs in real-time, so as you step through the code, it steps through with the hardware itself. It's extremely useful and quite easy to use. Definitely the best way to do it. Just connect your PK2 to your hardware, select the "PICkit2" as the debug tool under the "debugger" menu, and start stepping through the code.
Good luck!
Der Strom

be80be · Aug 15, 2011

You have to have a adapter to debug a 16f690 with the pickit 2

PIC16F631*, 677*, 685*, 687*, 689*, 690*
- Use AC162061 ICD header & AC164110 adapter.

Ian Rogers · Aug 16, 2011

Unless you have a grand to spend on ISIS.... I've used pickit2 to debug most 16's, 18's and some 24's in real time...

be80be · Aug 16, 2011

I would have a look at this page **broken link removed**

It lets you know what you need to debug chips with the pickit2 you need to pick the right chips or you'll end up needing special headers

DerStrom8 · Aug 16, 2011

Ian Rogers said:
Unless you have a grand to spend on ISIS....

Or find someone who's got it and is willing to help you out.

ibwev · Aug 16, 2011

DerStrom8 said:
I would recommend using a PICkit2. It runs in real-time, so as you step through the code, it steps through with the hardware itself. It's extremely useful and quite easy to use. Definitely the best way to do it. Just connect your PK2 to your hardware, select the "PICkit2" as the debug tool under the "debugger" menu, and start stepping through the code.
Good luck!
Der Strom

I love the quotes. Thank you so much for the help. I ordered PicKit2 dubugger hardware today. When using the PicKit2 Debugger, is it the same as using the MPLAB Simulator?

DerStrom8 · Aug 16, 2011

ibwev said:
I love the quotes. Thank you so much for the help. I ordered PicKit2 dubugger hardware today. When using the PicKit2 Debugger, is it the same as using the MPLAB Simulator?

Hehe, thanks

It is similar, and basically set up the same way. Just have to change one or two settings and you need the real hardware, but it works great. Definitely worth it!

be80be · Aug 17, 2011

It will not debug a 16f690 with out a special header. If you want to debug I would order some 16f88 there debug able with out a header and so are the 18f chips

Ian Rogers · Aug 17, 2011

Burt!!! What special header? I have the pic16f690 dev kit (came with pickit2) and its the same header as all the rest!

DerStrom8 · Aug 17, 2011

be80be said:
It will not debug a 16f690 with out a special header. If you want to debug I would order some 16f88 there debug able with out a header and so are the 18f chips

Oh I'm sorry--I forgot about that. I suggest you do that (order a 16f88).
Thanks Burt

DerStrom8 · Aug 17, 2011

post removed

DerStrom8 · Aug 17, 2011

By the way, what version of MPLAB do you have?

It is not the PICkit2 that needs the adapter--it works fine with the 16F690. It is MPLAB that actually requires the adapter, I believe.

be80be · Aug 17, 2011

You can't debug a 16f690 with a pickit2 with out this

PIC16F631*, 677*, 685*, 687*, 689*, 690*
- Use AC162061 ICD header & AC164110 adapter.

**broken link removed**

DerStrom8 · Aug 17, 2011

I was looking at **broken link removed**.

It says

PICkit 2 Programmer Application v2.61
Device Programming Support
Midrange Devices
‘LF’ versions of all devices are also supported
PIC16F688, 689, 690

But under the MPLAB side it says

MPLAB IDE v8.66
Device Programming and Debugging Support
Midrange – Programming & Debugging
‘LF’ versions of all devices are also supported
PIC16F631*, 677*, 685*, 687*, 689*, 690*
- Use AC162061 ICD header & AC164110 adapter.

Maybe I'm reading this wrong?

pixman · Aug 17, 2011

If you open mplab and use select device it will tell you if you need a header or not.
I have checked and it tell you that you require a ICE/ICD AC162061 header.

Ian Rogers · Aug 18, 2011

Well!! smack me sideways..... Thanks Burt, I use ISIS for debugging so I never noticed... Pixman you are quite correct, I does tell you...

be80be · Aug 18, 2011

Yep It tells you you can program the chip

PICkit 2 Programmer Application v2.61
Device Programming Support
Midrange Devices
‘LF’ versions of all devices are also supported
PIC16F688, 689, 690

But this is what you have to have to debug in MPLAB you can't debug with the pickit software ide you use MPLAB and pick your debugger

MPLAB IDE v8.66
Device Programming and Debugging Support
Midrange – Programming & Debugging
‘LF’ versions of all devices are also supported
PIC16F631*, 677*, 685*, 687*, 689*, 690*
- Use AC162061 ICD header & AC164110 adapter.

DerStrom8 · Aug 18, 2011

Ah, I see. So even with newer versions of MPLAB, it will still need the header?

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