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RTOS/CC2650: can not program custom board using CCS

Asad Lesani
Intellectual 380 points
Part Number: CC2650


Tool/software: TI-RTOS

Hi,

I have designed a custom board based on CC2650. but I can not program it using CCS. I tried SmartRF Flash  Programmer and I can program sensor tag .hex file and even mass flash erase. 

I checked all connections using microscope. and the voltage of CC is correct: 1.67v and DCDC Couple 1.2v.

Do you have any idea what can cause the issue?

If there is JTAG problem why I can program using RF flash programmer?

This is the error I'm getting using CCS:

Can't Run Target CPU: (Error -2134 @ 0x0) Unable to control device execution state. 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). (Emulation package 6.0.407.3) 
Cortex_M3_0: JTAG Communication Error: (Error -1170 @ 0x0) 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). (Emulation package 6.0.407.3)