Friday, April 2, 2010

Apr. 2 LMS openocd-flash screenshots/problems

If JTAG quits, then
  • turn off LMS (switch or take battery out)
  • unplug usb to JTAG and plug back in
  • wait for JTAG to boot (blinking light)
  • turn LMS back on

Looking for a pattern on when
  • VLOW and 
    • looks like problem was broken wires in the connector from the JTAG
    • also if the lms is plugged in then FORTE is running, which may use more power than what is coming from charger 
      • (so need to look into power management later)
  • broken pipe problems 
    • unknown eclipse problem - but did occur with arm-elf-insight was running
occur:
  • to avoid these problems
  • to find the simplest or at least some consist way to get LMS openocd-flash to work again
Don't yet have a full set of fully working screen shots, nor screenshots as soon as problems start.
 
 LMS openocd-flash screenshots
 with no problems: (from 2 Apr.)











openocd.bat with no errors











java eclipse - run also worked correctly (no screenshot)
Mistake: in 4diac-ide / deployment clicked on launch forte instead of download

unfortantely didn't take screenshot first time Vlow problem occurred
with Vlow problem (from 2 Apr. - plugged in, 2nd time)
Webpage partly shown: http://powerelectronics.com/news/converter-controller-ics-0428/

LMS continually clicks, showing it is firmware reset mode  
  • openocd-flash.bat downloads to firmware, it must hang / have problems after going into firmware reset mode. 
  • The clicking eventually stopped, but not clear why.
    • Tried reseting the firmware for an LMS with LEGO default Mindstorms firmware. It continued to click until its firmware was updated (via LEGO Mindstorms SW).
  • LMS when turning PC on and off
    • Turn computer off and LMS stays on
    • Turn computer on
      • LMS turns off at some point when the user id is being signed on to (not during boot up)
    • PC on / Press orange button
      • led turns on
      • lms starts to click and PC sounds like a device was connected
      • after some time: 
        • PC sounds: device disconnect
        • LMS clicking stops, 
        • led turns off 
  • Tried updating firmware from LEGO Mindstorms
    • The NXT brick was not found
      • either device not recognized by PC
      • or what is currently on the NXT brick makes unrecognizable
Vlow value:
  • 1.47-1.55 with USB plugged in to the LMS
    • same value with or without the battery pack in the LMS!
  • 0 when USB is not plugged in to LMS
  • JTAG error if its USB is not plugged in
  • 3.2 but then get -902 error, next time back to Vlow error














-902 error (battery plugged in and fully charged)
Also the PC:
  • pops up a unrecognized device connected message; 
  • device connection sound; 
  • shortly afterwards device disconnect sound
Beforehand arm-elf-insight  followed by open of forte.exe worked.




No comments:

Post a Comment