I am working with an STK3400 as debugging interface connected to a custom board. Everything was working, so I know it can be done and my setup is supposed to work. PC runs Linux.
Two days ago I intended to keep working and things didn't work, found some tips in the forum, and it seemed to work yesterday. I even able to work this morning and suddenly again: fails.
Now, this is what I mean by it doesn't work.
1) STK3400 is detected when Simplicity is started. Sometimes connection is lost, and need to restart Simplicity.
2) Target device is detected, but it is never programmed... but I get no error!!! Program is not updated, and debugging is not available.
3) If I use the flash programmer and hit "erase", the progress bar goes all the way, but nothing is erased.
4) If I try to flash the device with the flash programmer I get no error, but no updated program either.
Is there any way to figure out what is going wrong? For example a log o TCF agent output window.
What flavor of Linux are you running?
How long had this been working before it began giving you trouble?
Are you aware of anything that happened around the time you began seeing these issues? (installation of available Simplicity Studio updates, installation of new hardware/drivers, connected a new USB device to the same hub as your STK3400, etc.)
It has been a while since you posted this - are the issues still blocking you? If they are sporadic, does there seem to be any action(s) that "trigger" the transition to these problem behaviors from a working state?
Do any of these issues occur when the MCU on the STK3400 is the target? (i.e. when the STK is in Debug:MCU mode, instead of DebugUT). If you're unsure, can you check this the next time these issues arise?