Recovering CC2640

Sayu Sekhar

Other Parts Discussed in Thread: CC2640

Hi,

we are using CCS and have programmed our custom board with our experimental firmware. However, on reset we realised that CCS is no longer able to connect to the board. we tried mass erase using FP2 and though FP2 was able to enumerate the device as a CC2640 it failed giving an error mesage that XBAL object not created.

we tried programming the same firmware on another board and ended up bricking that board as well.

I want to know if there there is any method by which we can connect to the board and do a mass erase. as I wrote, FP2 does seem to enumerate the board when we do a power reset. However, when we perform a connect, it gives an error.

We are using an Olimex XDS100v3 debugger (2 wire Jtag). The setup works for our usual firmware. however programming the experimental firmware has made them unresponsive.

Any help would be appreciated.

Regards,

Sayu

over 9 years ago

0 M over 9 years ago

TI__Genius 13620 points

Hi Sayu,

Is the system reset signal (SRST or Reset and NOT TRST) from the Olimex programmer connected to the reset signal of the CC2640?

0 Sayu Sekhar over 9 years ago in reply to M

Prodigy 250 points

Hi,
The Reset from the Olimex programmer i not connected to the reset signal of the CC2640. However the same setup was working without any issues till we programmed this experimental firmware.
Regards,
Sayu Sekhar.

0 M over 9 years ago in reply to Sayu Sekhar

TI__Genius 13620 points

What did you do differently in your experimental firmware? Regardless, I strongly recommend to connect the reset signal. It is the only way to reliably connect to the CC2640 with a debugger.

0 Sayu Sekhar over 9 years ago in reply to M

Prodigy 250 points

Hi,
We connected the SRST from Olimex programmer to our board and it worked . Thank you very much for your help.

Regards
Sayu Sekhar.

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Recovering CC2640