use new avrdude -L option to load project-specific config file

README

@@ -15,22 +15,14 @@ be in the same directory as the top-level directory of Antorcha. E.g.,
 /home/qi/antorcha/
 
 
-/etc/avrdude.conf entry
------------------------
+Avrdude configuration
+---------------------
 
 Antorcha uses the atusb programming adapter from the ben-wpan project.
 Since the pin positions of MISO and MOSI are swapped between ATmega32U2
-and the ATmega168, the following entry is needed in avrdude.conf (which
-is the same as the entry for nanonote_atusb except that the pin numbers
-for mosi and miso are swapped):
+and the ATmega168, we use a modified configuration entry.
 
-programmer
-  id	= "nanonote_antorcha";
-  desc	= "NanoNote 8:10 card adapter for ATUSB";
-  type	= nanonote;
-  reset	= 1;
-  sck	= 8;
-  mosi	= 6;
-  miso	= 7;
-  pgmled = 2;
-;
+It is passed to avrdude via the new -L option, available with the
+Nanonote patches at
+
+http://projects.qi-hardware.com/index.php/p/ben-blinkenlights/source/tree/master/avrdude

fw/Makefile

@@ -159,7 +159,7 @@ MKDEP =									\
 # ----- Programming and device control ----------------------------------------
 
 upload:		$(NAME).bin boot.hex
-		scp $(NAME).bin boot.hex $(HOST):
+		scp $(NAME).bin boot.hex avrdude-antorcha.conf $(HOST):
 
 # lfuse: external clock, slow start-up
 # hfuse: 4 kB boot loader, reset into boot loader
@@ -168,12 +168,14 @@ upload:		$(NAME).bin boot.hex
 #	      verification. So we just program 0x2f.
 
 prog-app:
-		ssh $(HOST) avrdude -F -p $(CHIP) -c nanonote_antorcha -e \
+		ssh $(HOST) avrdude -F -p $(CHIP) \
+		  -L avrdude-antorcha.conf -c nanonote_antorcha -e \
 		  -U flash:w:antorcha.bin:r
 #		  -U lfuse:w:0x60:m
 
 prog:
-		ssh $(HOST) avrdude -F -p $(CHIP) -c nanonote_antorcha -e \
+		ssh $(HOST) avrdude -F -p $(CHIP) \
+		  -L avrdude-antorcha.conf -c nanonote_antorcha -e \
 		  -U flash:w:boot.hex:i \
 		  -U efuse:w:0x00:m \
 		  -U lfuse:w:0xe2:m

fw/avrdude-antorcha.conf

@@ -0,0 +1,10 @@
+programmer
+  id	= "nanonote_antorcha";
+  desc	= "NanoNote 8:10 card adapter for ATUSB";
+  type	= nanonote;
+  reset	= 1;
+  sck	= 8;
+  mosi	= 6;
+  miso	= 7;
+  pgmled = 2;
+;