Two Versions of MPASM in the Same Computer???

[mister_e]

I am pretty sure even the USB is backwards compatible, but I would ask Darrel to be sure. I do not have a way to test my old USB code, my old files and hardware are at a different location. I do not remember a problem during the last upgrade, but anything I had in progress I changed to the new way because the new way works better and takes less code space.

USB in 2.60 is far different, code example for 2.50 (UsbDemo) will not work AS-IS. Darrel posted a modified version of it in USBDemo thread. There's also DT-HID (or something like that)

You can compile all previous PICBasic Pro version with the same version of MPASM. Download latest MPLAB, and set MCS to use MPASM in
Program File \Microchip\MPASM Suite
Then just specify which PBP version you want to use to compile... you're done. MPASM has next to none to do with PICBASIC PRO version.... but New PIC support.

There's nothing that bad to keep multiple version of the compiler, but not a bad idea to upgrade your previous program too... it's up to you.

[mackrackit]

MPASM has next to none to do with PICBASIC PRO version

Not exactly.
http://melabs.com/support/index.htm

[mister_e]

Not exactly.
http://melabs.com/support/index.htm

Dave, this is only valid if you're under MPLAB and need the sim. There's no longer .COD file support in MPLAB but the standard .COFF.

I'll double check that later, pretty sure i'm right... should compile under MCS(P).. case not... well that sucks

[mackrackit]

Would be nice if it does work.
I still need to check if PBP is backwards compatible for USB, I think it is... What else would the "old USB" directory be for???

[mister_e]

http://www.picbasic.co.uk/forum/show...7423#post77423

[mackrackit]

Oh well, I like the new way better anyway...

[rsocor01]

Guys,

Thank you all for your comments.

Download latest MPLAB, and set MCS to use MPASM in
Program File \Microchip\MPASM Suite
Then just specify which PBP version you want to use to compile... you're done. MPASM has next to none to do with PICBASIC PRO version.... but New PIC support.

The next quote is from the MELABS webpage. http://melabs.com/support/mplab_old_versions.htm

PBP versions PRIOR TO 2.60 are compatible with MPLAB versions up to 8.15A. If you have MPLAB 8.20 or later, you will need to either downgrade to MPLAB 8.15A or upgrade to PBP 2.60.

The issue is that if I upgrade MPASM in my laptop all my PBP 2.50 code (specially the USB programs) will be useless. I guess that eventually I will have to change my old code so that it is compatible with PBP 2.60.

Robert

[rsocor01]

The issue is that if I upgrade MPASM in my laptop all my PBP 2.50 code (specially the USB programs) will be useless.

Not quite right. The correct statement would be "all the PBP 2.50 USB programs will be useless".