Add a openocd(1) configuration, to enable user firmware programming.

firmware/Sendcomm-OCD.cfg

@@ -0,0 +1,36 @@
+#
+# SendComm EDU (SAMR34 Cortex-M0 ISA) developer kit OpenOCD configuration
+#
+# Note: Build openocd(1) from its source repository to benefit from the most
+#       recent SAMR34 definitions, because the chip in use is relatively new.
+#
+# Use with a firmware binary (bin) or archive (elf) in the following way:
+#
+# $ openocd-git/src/openocd -s openocd-git/tcl \
+# -f dscomm-0.9.2/document/sendcomm-ocd.cfg \
+# -c 'program SendcommLWOTAA-rel.elf verify reset exit'
+#
+# ...and after that, Sendcomm firmware is running.
+# To use it, first log into the Sendcomm host and:
+#
+# $ screen /dev/serial0 115200 8N1
+#
+
+# Modify to the debugger in use
+#adapter driver cmsis-dap
+adapter driver jlink
+#jlink serial 123456789
+
+# choose swd (not jtag)
+transport select swd
+
+# chip name
+#set CHIPNAME at91samr21g18
+set CHIPNAME atsamr34j17
+
+# use defaults of Atmel SAM devices
+source [find target/at91samdXX.cfg]
+
+# optimise the datarate
+#adapter speed 5000
+adapter speed 800