Produce ihex files usable with TI's Flash Programmer

cpu/cc26xx/Makefile.cc26xx

@@ -6,6 +6,7 @@ OBJCOPY = arm-none-eabi-objcopy
 OBJDUMP = arm-none-eabi-objdump
 NM      = arm-none-eabi-nm
 SIZE    = arm-none-eabi-size
+SREC_CAT = srec_cat
 
 ### TI CC26xxware out-of-tree
 ### TI_CC26XXWARE is the home directory of the cc26xxware
@@ -106,9 +107,12 @@ CUSTOM_RULE_LINK=1
 	$(TRACE_LD)
 	$(Q)$(LD) $(LDFLAGS) ${filter-out $(LDSCRIPT) %.a,$^} ${filter %.a,$^} $(TARGET_LIBFILES) -lm -o $@
 
-%.hex: %.elf
+%.i16hex: %.elf
 	$(OBJCOPY) -O ihex $< $@
 
+%.hex: %.i16hex
+	$(SREC_CAT) $< -intel -o $@ -intel
+
 %.bin: %.elf
 	$(OBJCOPY) $(OBJCOPY_FLAGS) $< $@
 

platform/srf06-cc26xx/README.md

@@ -69,6 +69,7 @@ To use the port you need:
     [...]
     gcc version 4.9.3 20141119 (release) [ARM/embedded-4_9-branch revision 218278] (GNU Tools for ARM Embedded Processors)
 
+* srecord (http://srecord.sourceforge.net/)
 * You may also need other drivers so that the SmartRF can communicate with your
 operating system and so that you can use the chip's UART for I/O. Please read
 the section ["Drivers" in the CC2538DK readme](https://github.com/contiki-os/contiki/tree/master/platform/cc2538dk#drivers).