boards/nrf52: always recover device before flashing with OpenOCD

crasbe · crasbe · commit 168829f86577 · 2024-11-08T16:04:35.000+01:00
diff --git a/boards/common/nrf52/Makefile.include b/boards/common/nrf52/Makefile.include
@@ -18,8 +18,12 @@ else
   PROGRAMMER ?= openocd
 endif
 
-# setup OpenOCD for flashing. Version 0.10 of OpenOCD doesn't contain support
-# for nrf52dk and nrf52840dk boards. To use OpenOCD with these a version
-# build from source (master > 2018, August the 13rd) is required.
+# Setup OpenOCD for flashing. The nRF52 series is supported from OpenOCD v0.11
+# onwards.
 OPENOCD_DEBUG_ADAPTER ?= jlink
 OPENOCD_CONFIG = $(RIOTBOARD)/common/nrf52/dist/openocd.cfg
+
+# From Build Code Fxx and later, the nRF52 device is automatically locked after
+# a power cycle and has to be recovered with a separate command after the
+# initialization. Otherwise the Flash can not be accessed.
+OPENOCD_POST_INIT_CMDS = -c 'nrf52_recover'
