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SC_ERR_PATH_BROKEN

Masky
Intellectual 900 points

Other Parts Discussed in Thread: TMS320F28016

Hello,

I'm working with CCS v3.3, a Blackhawk emulator (USB 2000) and a board with a TMS320F28016 DSP.  I am suddenly started to get the following message when i connect to target:


Error connecting to the target:
Error 0x80000240/-233
Fatal Error during: Initialization, OCS,
This error was generated by TI's USCIF driver.

SC_ERR_PATH_BROKEN <-233>
The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.
An attempt to scan the JTAG scan-path has failed.
The target's JTAG scan-path appears to be broken
with a stuck-at-ones or stuck-at-zero fault.

I have tested with another board and It's working fine, so the emulator is not the problem. Is the DSP broken? Thank you.


  • 0
    TI__Guru**** 486031 points

    Masky said:
    I have tested with another board and It's working fine, so the emulator is not the problem. Is the DSP broken? Thank you.

    Unfortunately that sounds like what the problem is. Not necessarily the DSP but the JTAG scan path is not good. The stuck-at-ones error is a pretty clear indicator. You can try hooking up a scope to the pins and see where the breaks may be. It is definitely a hardware issue and not a tools issue.

    Thanks

    ki