diff options
Diffstat (limited to 'bootloader/generic-init.inc')
| -rw-r--r-- | bootloader/generic-init.inc | 61 |
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 + |