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EVM

Started by Calamity Jane April 22, 2003
"When you say that you have an EVM, do you mean the big board that is
a little bit bigger than a standard size sheet of paper?"

Yup, that's the one! Heck of a nice system, especially with the P&E
GUI. It was nice to work in multiple Windows that included the EVM,
software editor, and a "listing" window all open at once!

I can't get nuthin to work thru the com ports of XP. Seems Windows XP
"manages" the COM ports, preventing applications from having direct
access.

Windows XP don't "play nice" with older software 'n' stuff what
expects to have DIRECT access to the ports.

I'll wirte my own user interface in Visual Basic if I have to but,
being inherently lazy . . . . ;-)

Calamity



Calamity,

The 68HC11 doesn't need a GUI as best I recall. But remember, I dated myself with that comment about the 6801 board so maybe my memory is beginning to fail.

Yes, there was a cool interface that the DOS based software would do. However, you don't need to have that interface to communicate with the 68HC11EVM.

Connect a regular MODEM (not PRINTER) cable to the TERMINAL (not HOST) port of the 68HC11 EVM and you should be able to use the onboard monitor ROM which has the BUFFALO program.

Use Hyperterm or any standard terminal emulation program on your PC. TERRATERM is a good terminal emulation program.

This will let you communicate with the board. Then type "HELP" for a list of commands. Now, here is a debugging tip. Just put power on the 68HC11EVM board. Don't even bother to put a serial port cable. Just connect power. Now, take your scope. On the DB25 connector, use your scope to look at pin 2 (I think, it may be pin 3) which is the transmit pin. Then press the RESET pin on the EVM board. You should see a signal coming out on either pin 2 or pin 3 of the EVM board. If you do, then the board is working.

Then, take a MODEM type cable, connect your EVM to the PC and start up any terminal emulation program, set it to n-8-1 and you should be good to go.

Regards,

Charlie -----Original Message-----
From: Calamity Jane [mailto:]
Sent: Tuesday, April 22, 2003 10:38 AM
To:
Subject: [m68HC11] EVM "When you say that you have an EVM, do you mean the big board that is
a little bit bigger than a standard size sheet of paper?"

Yup, that's the one! Heck of a nice system, especially with the P&E
GUI. It was nice to work in multiple Windows that included the EVM,
software editor, and a "listing" window all open at once!

I can't get nuthin to work thru the com ports of XP. Seems Windows XP
"manages" the COM ports, preventing applications from having direct
access.

Windows XP don't "play nice" with older software 'n' stuff what
expects to have DIRECT access to the ports.

I'll wirte my own user interface in Visual Basic if I have to but,
being inherently lazy . . . . ;-)

Calamity
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