Joe Kissell

SCI help needed

Discussion created by Joe Kissell on Jun 9, 2011
Latest reply on Jun 9, 2011 by Joe Kissell

I'm using the SCI3 on a MCF51CN128 processor. It's connected to a CP2102 chip to convert from UART to USB signals. I have my board connected to a PC running HyperTerminal and am trying to talk to the unit. It's working well in most situations.

 

However, it will occasionally get into a state where the Vsci3rx interrupt is being triggered repeatedly by a single keypress.  The interrupt continues indefinitly.

 

What kinds of things should I look for and double-check?

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