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CCS/TMS320F28027: tms320f28027ptt

VIRENBHAI MISTRY
Prodigy 60 points

Part Number: TMS320F28027
Other Parts Discussed in Thread: TMDSEMU110-U

Tool/software: Code Composer Studio

hello

i have purchased new 10 pcs. TMS320F28027PTT controller ic from TEXAS online ( as previously purchased). but now when i try to debug it with TMDSEMU110-U, it didn't programmed. Then i have checked old controller ic which was programmed with same debugger. (means no issue related with the degugger and programming circuit)

is there any problem in controller's ? i try 2 pcs controller out of 10. Both gave same error. please help me for this metter.

Thanks 

  • 0
    Prodigy 60 points

    VIRENBHAI MISTRY said:

    Part Number: TMS320F28027

    Tool/software: Code Composer Studio

    hello

    i have purchased new 10 pcs. TMS320F28027PTT controller ic from TEXAS online ( as previously purchased). but now when i try to debug it with TMDSEMU110-U, it didn't programmed. Then i have checked old controller ic which was programmed with same debugger. (means no issue related with the degugger and programming circuit)

    is there any problem in controller's ? i try 2 pcs controller out of 10. Both gave same error. please help me for this metter.

    Thanks 

     ccs shows this error

    C28xx: Error connecting to the target: (Error -1015 @ 0x0) Device is not responding to the request.  Device may be locked, or the debug probe connection may be unreliable. Unlock the device if possible (e.g. use wait in reset mode, and power-cycle the board). If error persists, confirm configuration and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 6.0.407.3)

  • 0 in reply to VIRENBHAI MISTRY
    TI__Expert 7985 points
    Hi Virenbhai,
    Can you please advise if this is a new board where you are having trouble with the Emulator/JTAG interface? OR Is this is related to a new TMS320F28027PTT controller ic installed on an old board where the Emulator/JTAG interface is working properly?
  • 0 in reply to Krishna Allam
    Prodigy 60 points

    Krishna Allam74 said:
    Hi Virenbhai,
    Can you please advise if this is a new board where you are having trouble with the Emulator/JTAG interface? OR Is this is related to a new TMS320F28027PTT controller ic installed on an old board where the Emulator/JTAG interface is working properly?

    Issue related with new TMS320F28027PTT controller ic which is installed in my old board. ( both worked well ....tested old board with tested JTAG ).

    previously i purchased same 10 pcs controller from texas but there was no problem in programming. i have 1 controller ic left from that one, which worked fine with my "board1" and "JTAG1" now,

    but  if i tried with my recently purchased controller (from texas), with "board1" and "JTAG1"(means setup is fully tested) i am not able to program in new one.  

     

  • 0 in reply to VIRENBHAI MISTRY
    Prodigy 60 points

    VIRENBHAI MISTRY said:

    Krishna Allam74
    Hi Virenbhai,
    Can you please advise if this is a new board where you are having trouble with the Emulator/JTAG interface? OR Is this is related to a new TMS320F28027PTT controller ic installed on an old board where the Emulator/JTAG interface is working properly?

    Issue related with new TMS320F28027PTT controller ic which is installed in my old board. ( both worked well ....tested old board with tested JTAG ).

    previously i purchased same 10 pcs controller from texas but there was no problem in programming. i have 1 controller ic left from that one, which worked fine with my "board1" and "JTAG1" now,

    but  if i tried with my recently purchased controller (from texas), with "board1" and "JTAG1"(means setup is fully tested) i am not able to program in new one.  

     

    issue solved.

     i have connect 10k pull up and 0.1uF pull down capacitor on XRS pin of dsp controller. it works fine till now (upto 20 processors i have purchased )but with new processor it gives error, but now i have change with 2.2k pull up and 1uF pull down capacitor on XRS pin and it works fine.

    why this happen with new controller only? which is more perfect value?