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DSP56F827 Resetting Observation

Started by Papa__J August 1, 2002
Just an observation I thought would be useful to share with the
community. I've been playing with the DSP56F827EVM for a couple of
days now and I have noticed that when I am running a program out of
flash that the board seemed kind of flaky. I traced the problem down
to the PC parallel port JTAG program connector being susceptible to
noise. Since the inputs to the 74244 are just floating when I bushed
my finger against the connector shield it was causing the board to go
into reset. If I install the jumper to put the 74244 into tri-state
mode the problem goes away and the board seems to operate very
reliably.

Jacob