Hi, OpenOCD fails to flash my nRF52 microcontroller. Below is some more explanations.
The board ======= I've got an nRF52 microcontroller from Nordic Semiconductor. More in particular the nRF52833 mcu on the PCA10100 board. See: [ https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF52833-DK | https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF52833-DK ] The OpenOCD version =============== This morning, I built OpenOCD with the xPacks method. It builds the most recent version of the master repo, which is dev01138 at the moment of writing. Flashing ====== I succeeded to flash about two or three times this morning. Unfortunately, now I constantly get an error related to "protected sectors" that cannot be erased: (gdb) monitor nrf5 mass_erase Flash protection of this nRF device is not supported Failed to check chip's write protection (gdb) monitor flash erase_check 0 successfully checked erase state Bank is erased (gdb) monitor program "C:/Users/Kristof/nordic_test/build/myApp.elf" target halted due to debug-request, current mode: Thread xPSR: 0x01000000 pc: 0xfffffffe msp: 0xfffffffc ** Programming Started ** Adding extra erase range, 0x0000387c .. 0x00003fff Cannot erase protected sector at 0x0 failed erasing sectors 0 to 3 embedded:startup.tcl:460: Error: ** Programming Failed ** in procedure 'program' in procedure 'program_error' called at file "embedded:startup.tcl", line 525 at file "embedded:startup.tcl", line 460 Your help is greatly appreciated. Notes ==== I'm doing all this to support the nRF52 series in the free Embeetle IDE. I hope there is a solution to the problem that only involves OpenOCD - such that we don't need to add proprietary softwares (like JLink, ...) to Embeetle IDE. Kind regards, Kristof Mulier
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