[board] Add OpenOCD script for Nucleo-G0 boards

src/modm/board/nucleo_g071rb/module.lb

@@ -23,7 +23,7 @@ def prepare(module, options):
         return False
 
     module.depends(":platform:core", ":platform:gpio", ":platform:clock", ":platform:uart:2",
-                   ":debug", ":architecture:clock", ":architecture:clock")
+                   ":debug", ":architecture:clock")
     return True
 
 def build(env):
@@ -32,7 +32,12 @@ def build(env):
     env.template("../board.cpp.in", "board.cpp")
     env.copy('.')
 
-    # Waiting on this patch to OpenOCD http://openocd.zylin.com/#/c/4807
-    # env.outbasepath = "modm/openocd/modm/board/"
-    # env.copy(repopath("tools/openocd/modm/st_nucleo_g0.cfg"), "st_nucleo_g0.cfg")
-    # env.collect(":build:openocd.source", "modm/board/st_nucleo_g0.cfg")
+    # Waiting on OpenOCD to add support for STM32G0
+    env.log.warning("\nUploading firmware and debugging for STM32G0 via OpenOCD requires this patch: http://openocd.zylin.com/#/c/4807"
+                    "\nAlternatively you may copy the compiled binary onto the Nucleo USB Mass-Storage Device manually:"
+                    "\n    $ scons bin && cp path/to/build/release/project.bin /Volumes/NODE_G071RB")
+
+    # The patch doesn't include board config file though
+    env.outbasepath = "modm/openocd/modm/board/"
+    env.copy(repopath("tools/openocd/modm/st_nucleo_g0.cfg"), "st_nucleo_g0.cfg")
+    env.collect(":build:openocd.source", "modm/board/st_nucleo_g0.cfg")

tools/openocd/modm/st_nucleo_g0.cfg

@@ -0,0 +1,11 @@
+# Should work with all STM32G0 Nucleo Dev Boards.
+# http://www.st.com/en/evaluation-tools/stm32-mcu-nucleo.html
+
+source [find interface/stlink.cfg]
+
+transport select hla_swd
+
+source [find target/stm32g0x.cfg]
+
+# use hardware reset
+reset_config srst_only srst_nogate