CCS/MSP-FET: Could not set device Vcc

Hello Steve,

Can you provide some information about what IDEs you are using and what version? there was an issue with some older versions of the debug stack when it came to the newest HW revision of the MSP-FET. Please see the following post: e2e.ti.com/.../614826

I am using Code Composer Studio V7.0.0

I also tried the latest version of CCS Uniflash and i get the same error.

So everything is newest version, all updated.

Hello Steve,

CCSV7.0 or later should have the patch for the issue I am referring to.
Can you describe your connection to the device?
Are you using the provided ribbon cable or sky wiring to a board?
Are you using a custom board or a target board or a Launchpad?
Which device are you trying to connect to?
Can you provide a schematic excerpt for the JTAG connection from the device to the MSP-FET?

The problem happens with or without the ribbon cable connected, with or without a target. It never even attempts to power anything.

The older working FET's have no problem. I can actually unplug the USB cable from the new FET, plug in an old one, and CCS connects to it no problem (and I then get an appropriate message that "no target is connected"), then plug the new FET back in, and get the VCC message again.

The board I am trying to program has a 4-pin spy-bi-wire connection which we wire into the ribbon cable. Never had issues with this before. 

I also tried looping back the device CC to the Target VCC on the ribbon cable. Makes no difference to any of the units (ie. the working ones still work and the non-working ones still don't work).

Steve,

i managed to get my hands on a v18xxxx serial number MSP-FET to test out on my system. I used both CCSv7.3 and CCSv8.0 and had no issues. Can you download the latest CCS to try this as well?

Let's also back up here and double check connections. When you say that you wire up the SBW connections to the ribbon cable, are you plugging into a header on your board, or sky-wiring to the ribbon cable/ If its sky wires, then I would suggest removing the ribbon cable and sky-wiring to the MSP-FET directly, as the extra wire could place additional capacitance eon the line. This additional capacitance can deteriorate SBW communications. Also, can you give a diagram/partial schematic of the connections between your board/chip and the MSP-FET?
Also, what MSP430 are you connecting to? I need to know this in order to advise the proper connection schematic connections for SBW as it differs slightly depending on the MSP430 being used.