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authorChristian Pointner <equinox@spreadspace.org>2013-07-08 01:48:14 +0000
committerChristian Pointner <equinox@spreadspace.org>2013-07-08 01:48:14 +0000
commitbd153583896886e026503ec99e0870969d374a23 (patch)
tree6b4e7f5d57aeff25f0aba16fc7f4d8d53176f746 /bootloader/generic-init.inc
parentadded generic 887 code (diff)
split bootloader code into includes
git-svn-id: https://svn.spreadspace.org/pic/trunk@60 a09c6847-51d9-44de-8ef2-e725cf50f3c7
Diffstat (limited to 'bootloader/generic-init.inc')
-rw-r--r--bootloader/generic-init.inc61
1 files changed, 61 insertions, 0 deletions
diff --git a/bootloader/generic-init.inc b/bootloader/generic-init.inc
new file mode 100644
index 0000000..c679dd9
--- /dev/null
+++ b/bootloader/generic-init.inc
@@ -0,0 +1,61 @@
+ ;;
+ ;; spreadspace pic utils
+ ;;
+ ;;
+ ;; Copyright (C) 2011 Christian Pointner <equinox@spreadspace.org>
+ ;;
+ ;; This file is part of spreadspace pic utils.
+ ;;
+ ;; spreadspace pic utils is free software: you can redistribute it and/or modify
+ ;; it under the terms of the GNU General Public License as published by
+ ;; the Free Software Foundation, either version 3 of the License, or
+ ;; any later version.
+ ;;
+ ;; spreadspace pic utils is distributed in the hope that it will be useful,
+ ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+ ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ ;; GNU General Public License for more details.
+ ;;
+ ;; You should have received a copy of the GNU General Public License
+ ;; along with spreadspace pic utils. If not, see <http://www.gnu.org/licenses/>.
+ ;;
+
+ org .0
+ ;; btfsc BOOTPIN
+ ;; goto USERVECT
+ goto com_init
+
+ ;; -------------------------------------
+ ;; goto user ISR
+ org .4
+isr
+ goto ISRVECT
+
+ ;; -------------------------------------
+ ;; Bootloader (Generic Subroutines)
+send_answer ; generic answer message, leave len of data in W
+ addlw .3
+ movwf combuff + .1
+ decf combuff + .1,w
+ movwf cnt
+ movlw combuff
+ movwf FSR
+ clrf csum
+send_answer_next
+ movf INDF,w
+ call com_tx_byte
+ incf FSR,f
+ decfsz cnt,f
+ goto send_answer_next
+
+ movf csum,w
+ call com_tx_byte
+ return
+
+ ;; ------------------
+ack_cmd ; short answers which only contain return code
+ movwf combuff + .2
+ movlw .1
+ call send_answer
+ return
+