I'm looking for some Simple example code that implements the SBW interface.
Something that works on two dev boards. I already have the TI code that goes
with slau320 app note but I can't get it to work...
I have a project that has a MSP 54xx and a MSP430AFE2xx. I was told by TI
there was a software example and tech note slau320 that I could use to program
the 2xx with the 54xx. Unfortunately this is not a "software" example and that
it requires a replicator board with some bidirectional hardware ICs (sn74xx45).
currently I have two Texas instrument development boards, one for each
processor and no extra hardware. I have traced through the replicator hardware
reference and determined how the port 5 pins are brought out to the JTAG header
but when I interconnect the two boards I am unable to successfully program the
2xx chip. I've tried all 3 modes [jtag, sbwjtag, and sbw] without any
success. (the call that gets JTAG ID fails)
I believe these bidirectional chips are to blame as I see the code is changing
their direction as it runs I hope to remove all of the external hardware that
the replicator project has and uses. I see on TI's forum that someone
"John" was able to use a pic part to program his target without the
bidirectional chips. Has anyone been able to do this with a MSP? I'm
hoping to use the 2 wire spy by wire interface but I'm ready for anything
at this point.
Thanks for any input.
MAS
implementing a simple SBW within a MSP430F54xx
Started by ●June 23, 2013