Got "cntr" to show signs of life. It was the watchdog, as usual.

- TODO: "cntr" now makes it to DFU and beyond
- atrf/fw/common/config.h (PLATFORM_SETUP): rename to PLATFORM_ENTER
- cntr/fw/common/config.h (PLATFORM_SETUP): rename to PLATFORM_ENTER and
  make the new PLATFORM_SETUP turn off the watchdog

TODO

@@ -16,6 +16,8 @@ Things not done yet
 
 - implement return to DFU in application's EP0 protocol
 
+- consider removing *_ID and using bcdDevice instead
+
 
 Bugs to fix
 -----------
@@ -110,10 +112,3 @@ Things not done yet
 - evaluate termination resistance
 
 - document circuit design
-
-
-Bugs to fix
------------
-
-- the firmware flashes okay and there are no outward signs of problems, yet the
-  board doesn't do anything so far, not even blink the LED. Kinda embarrassing.

atrf/fw/common/config.h

@@ -25,7 +25,7 @@
  * This turns on the LED, to indicate that we're in the boot loader.
  */
 
-#define PLATFORM_SETUP \
+#define PLATFORM_ENTER \
 	LED_MODE |= 1 << LED_BIT;
 
 

cntr/fw/common/config.h

@@ -21,11 +21,20 @@
 /* ----- Boot loader configuration ----------------------------------------- */
 
 /*
- * Make LED output push-pull so that we can output a high voltage.
- * This turns on the LED, to indicate that we're in the boot loader.
+ * Disable the watchdog.
  */
 
 #define PLATFORM_SETUP \
+	PCA0MD = 0;
+
+
+/*
+ * Make LED output push-pull so that we can output a high voltag, then enable
+ * the crossbar. This turns on the LED, to indicate that we're in the boot
+ * loader.
+ */
+
+#define PLATFORM_ENTER			\
 	LED_MODE |= 1 << LED_BIT;	\
 	XBR1 = XBARE;