Merge pull request #49 from rust-embedded/main-itm

break on main; restore ITM configure

Author: japaric

openocd.gdb

@@ -8,8 +8,24 @@ break DefaultHandler
 break UserHardFault
 break rust_begin_unwind
 
+# *try* to stop at the user entry point (it might be gone due to inlining)
+break main
+
 monitor arm semihosting enable
 
+# # send captured ITM to the file itm.fifo
+# # (the microcontroller SWO pin must be connected to the programmer SWO pin)
+# # 8000000 must match the core clock frequency
+# monitor tpiu config internal itm.txt uart off 8000000
+
+# # OR: make the microcontroller SWO pin output compatible with UART (8N1)
+# # 8000000 must match the core clock frequency
+# # 2000000 is the frequency of the SWO pin
+# monitor tpiu config external uart off 8000000 2000000
+
+# # enable ITM port 0
+# monitor itm port 0 on
+
 load
 
 # start the process but immediately halt the processor