Debugging message through FDC37C672-COM of MBX860??

Okehee Goh ogoh at
Tue Dec 4 04:00:00 EST 2001

I'm so sorry about this question.

I want to print out debug messages to console monitor from the
application loaded at MBX860 through EPPC-Bug. I was supposed to use
EPPC-Bug's system call for this purpose. But it wasn't possible because my
application overlap
all exception codes and stack. And then I tried to use SMC1 or SMC2's UART
for this purpose. But it's not working.

The port status is the following.
Current Port Assignments:  (LUN: Device-Name Port-Name)

00: FDC37C672-COM     COM1              (Console)

01: MPC8XX-SMC        SMC2

02: MEMORY            CHNL0


According to MBX manual, SMC1 is used as console port.

If it's true, COM1 is using SMC1?

So, I thought I must use SMC'1 UART to print out to a console. Is it

I tested the application using SMC1' s UART

 by applying a SMC's UART application note provided by Motorola's

But It doesn't seem to work. I can't see anything from a console after
executing this test application.

Thank you any help.

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