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TMS570LS2124: Debug Problem

Part Number: TMS570LS2124

Tool/software:

Dear  Sir ,

We  are testing  one  code  in  Some PCB and  verifying  the function  of  PCB Card, Iam  using  TMS570L2124   microcontroller  which is  Assembled  in PCB   , After Connecting the JTAG  detection , I am  trying  to  dump the code in that board , but  its growing  one error , "Unable to access the DAP. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). "  during the jumping of code . How  resolve  this problem, what will be problem .  Rep  soon as much possib\e

Thank you Sir