Enable running from top level directory

.gitignore

 */avr/compiled
+*~
\ No newline at end of file

Makefile

+all:
+	@echo "Do 'make PROCESS.LOAD' or 'make PROCESS.FUSE'" >&2
+	@echo "where PROCESS is one of" >&2
+	@for m in */*/Makefile ; do \
+	    echo "  $$(dirname $$(dirname $$m))" >&2 \
+	; done
+	@echo >&2
+	@exit 1
+
+%.LOAD:
+	make -C $*/avr $@
+
+%.FUSE:
+	make -C $*/avr $@

README.md

 Software for processes used at Department of Automatic Control
 ==============================================================
 
+batch-2002
+
+
+How to (re)program a chip
+=========================
+
+Clone this repository and change to the top level directory, then
+
+  * If it's the first time this chip is programmed, the fuse bits
+    need to be programmed, this is done by running `make PROCESS_NAME.FUSE`
+
+  * Program the chip by running `make PROCESS_NAME.LOAD`

lib/avr/Makefile.common

@@ -68,12 +68,27 @@ OBJECTS=$($(1).C:%=compiled/$(1)/%.o)
 	        -U flash:w:compiled/$(TARGET)/$*.sr:s
 
 %.FUSE:
-	[ -n "$($(TARGET).FUSE_L)" ] && avrdude -P usb -c avrisp2 -p $(CHIP) \
-	        -U lfuse:w:$($(TARGET).FUSE_L):m || true
-	[ -n "$($(TARGET).FUSE_H)" ] && avrdude -P usb -c avrisp2 -p $(CHIP) \
-	        -U hfuse:w:$($(TARGET).FUSE_H):m || true
-	[ -n "$($(TARGET).FUSE_E)" ] && avrdude -P usb -c avrisp2 -p $(CHIP) \
-	        -U efuse:w:$($(TARGET).FUSE_E):m || true
+	@if [ -n "$($(TARGET).FUSE_L)" ] ; then \
+	    echo avrdude -P usb -c avrisp2 -p $(CHIP) \
+		         -U lfuse:w:$($(TARGET).FUSE_L):m >&2 \
+	    ; avrdude -qq -P usb -c avrisp2 -p $(CHIP) \
+                    -U lfuse:w:$($(TARGET).FUSE_L):m \
+	    || (echo "failed to program FUSE_L with $($(TARGET).FUSE_L)" >&2 && exit 1) \
+	; fi
+	@if [ -n "$($(TARGET).FUSE_H)" ] ; then \
+	    echo avrdude -P usb -c avrisp2 -p $(CHIP) \
+		         -U hfuse:w:$($(TARGET).FUSE_H):m >&2 \
+	    ; avrdude -qq -P usb -c avrisp2 -p $(CHIP) \
+                    -U hfuse:w:$($(TARGET).FUSE_H):m \
+	    || (echo "failed to program FUSE_H with $($(TARGET).FUSE_H)" >&2 && exit 1) \
+	; fi
+	@if [ -n "$($(TARGET).FUSE_E)" ] ; then \
+	    echo avrdude -P usb -c avrisp2 -p $(CHIP) \
+		         -U efuse:w:$($(TARGET).FUSE_E):m >&2 \
+	    ; avrdude -qq -P usb -c avrisp2 -p $(CHIP) \
+                    -U efuse:w:$($(TARGET).FUSE_E):m \
+	    || (echo "failed to program FUSE_E with $($(TARGET).FUSE_E)" >&2 && exit 1) \
+	; fi
 
 %.FUSE_uisp:
 	exit 1