nRF5340-DK
==========
README for NuttX port to NRF5340 DK (PCA10095) boards.
Tool Issues
===========
OpenOCD
-------------
There is no support official support for Nordic Cortex M33 chips (nRF9160 or nRF5340).
Segger J-Link
-------------
To start the GDB servers for the application core and the network core, use these commands:
JLinkGDBServer -device nRF5340_xxAA_APP -autoconnect 1 -if SWD -speed 4000 -port 2331 -swoport 2332 -telnetport 2333
JLinkGDBServer -device nRF5340_xxAA_NET -autoconnect 1 -if SWD -speed 4000 -port 2334 -swoport 2335 -telnetport 2336
Then you can connect GDB to targets:
(gdb_app) target remote localhost:2331
(gdb_net) target remote localhost:2334
Flashing locked device
----------------------
1. Unlock the Net core:
nrfjprog --recover --coprocessor CP_NETWORK
2. Unlock the App core:
nrfjprog --recover
3. Flash the Net core:
nrfjprog --coprocessor CP_NETWORK --program nuttx_net.hex --verify --chiperase
4. Flash the App core:
nrfjprog --program nuttx_app.hex --verify --chiperase
