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Original question:

OTP programming

CCS/TMS320F280049C: Unit Locked after try to program OTP

Jordan Cantillano
Intellectual 355 points

Part Number: TMS320F280049C

Tool/software: Code Composer Studio

Hi,

We try to program the User OTP section using the command linker file and use a constant  global variable for set the values.

After run the debugger to load the code the unit prompt an error. Then we tried to load other code tha worked an the unit seems to be locked.

Prompt Error message:

C28xx_CPU1: 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 9.1.0.00001)  
SW Toolset:
Code Composer Studio 10.0.0.00010
C2800 Compiler Tools 20.2.1 com.ti.cgt.c2000.19.win32.feature.group  Texas Instruments
 
HW Toolset:
TMDSCNCD280049C Eval Board  + TMDSHSECDOCK