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Hi,
The flash programmer2 has a feature to readback the internal flash contents to a file. I want to selectively disable this readback feature but still be able to program my CC2640 using 2 wire JTAG.
Please let me know if this is possible.
Regards,
Sayu Sekhar.
Hello Sayu,
The CC26XX Cortex M3 does not have an MPU (memory protection unit) and therefore the CPU can read everything. CCFG (last page of flash) can be used to configure only erase/write protection. This can be useful to protect from write corruption (do not enable write protect for NV pages used by your application).
To protect from read you can:
To reprogram with these settings enabled you need to to a full chip erase before reprogramming the chip.
Hi Eirik,
Thanks for the detailed information. So in case I do the following:
I can still reprogram the device, just that I would have to do a full erase. Is that correct?
Thanks,
Sayu Sekhar
Hi Eirik,
I am using the "CC26xx/CC13XX Force Mass Erase" from the wrench menu next to help.
Regards,
Sayu Sekhar