Hi!
I'm using an F28335 Experimenters kit with the on board XDS100v1 emulator to control a 5kVA inverter around line voltages. (CCS is v5.5).
To protect my USB port from high voltages (and because I thought this would solve my problem), I'm using an usb isolator (http://www.digikey.ca/product-detail/en/UH201/1165-1124-ND/3884029). The USB cable I use is the one that comes with the experimenters kit.
Now my problem:
As soon as my power electronic circuit has a step in the load currents flowing at higher voltages (150-300V range), CCS often starts to freeze and after a while errors like these are displayed in the Console:
C28xx: Error: (Error -150 @ 0x0) One of the FTDI driver functions used during configuration returned a invalid status or an error. (Emulation package 5.1.232.0)
I have also seen Error -154 from time to time.
This behaviour is independent of the use of the isolator. I also played with the JTAG TCLK frequency (went down to 10kHz step by step), without a change in behaviour.
After removing the usb cable, CCS starts to respond again. The microcontroller itself never stops to operate properly, it runs everything as expected, from what I can observe.
What could other reasons for this problem be?
