From: ceb <ceb>
Date: Sun, 3 Apr 2005 22:12:24 +0000 (+0000)
Subject: 3/4/5 start of program to call error codes from flash
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=commitdiff_plain;h=f546bb20188a13afc8749842aa8dc5aa72fff27d;p=trains.git

3/4/5 start of program to call error codes from flash
---

diff --git a/cebpic/README.protocol b/cebpic/README.protocol
index d066005..caaf33f 100644
--- a/cebpic/README.protocol
+++ b/cebpic/README.protocol
@@ -32,6 +32,12 @@ Byte 20 0001h
 				0 otherwise
 		0-6		currently unused, set to 0
 
+Bytes 30 0000h - 3f ffffh
+		reserved for error messages, each 8 bytes long 
+		
+
+
+
 
 I2C
 ===
diff --git a/cebpic/panic.asm b/cebpic/panic.asm
new file mode 100644
index 0000000..5277854
--- /dev/null
+++ b/cebpic/panic.asm
@@ -0,0 +1,16 @@
+; to start, need to write into flash, starting at 30 0000h:
+; 10 10 10 00 | 1110 1110 | 1110 00 10 | 10 10
+
+;---------------------------------------------------------------------------
+; boilerplate:
+
+        include         /usr/share/gputils/header/p18f458.inc
+        radix           dec 
+
+;---------------------------------------------------------------------------
+; error messages
+
+error_SOS	equ	0	; msg 0 = SOS
+
+;---------------------------------------------------------------------------
+