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Diffstat (limited to 'software/ttx_crx/ttx.inc')
| -rw-r--r-- | software/ttx_crx/ttx.inc | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/software/ttx_crx/ttx.inc b/software/ttx_crx/ttx.inc new file mode 100644 index 0000000..2e45f28 --- /dev/null +++ b/software/ttx_crx/ttx.inc @@ -0,0 +1,294 @@ + ;; + ;; mur.sat + ;; + ;; Somewhen in the year 2012, mur.at will have a nano satellite launched + ;; into a low earth orbit (310 km above the surface of our planet). The + ;; satellite itself is a TubeSat personal satellite kit, developed and + ;; launched by interorbital systems. mur.sat is a joint venture of mur.at, + ;; ESC im Labor and realraum. + ;; + ;; Please visit the project hompage at sat.mur.at for further information. + ;; + ;; + ;; Copyright (C) 2011 Christian Pointner <equinox@mur.at> + ;; + ;; This file is part of mur.sat. + ;; + ;; mur.sat 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. + ;; + ;; mur.sat 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 mur.sat. If not, see <http://www.gnu.org/licenses/>. + ;; + + ;; ------------------------------------- +dottime + movwf TMR0 + bcf INTCON,T0IF +dot_inner + btfss INTCON,T0IF + goto dot_inner + clrwdt + return + + ;; ------------------------------------- +send_char + movwf CHAR + movlw 'Z' + 1 + subwf CHAR,w + btfsc STATUS,C + return + movlw ' ' + subwf CHAR,f + btfss STATUS,C + return + btfsc STATUS,Z + return + + movf CHAR,w + call getcw + movwf ELEMENT + movf CHAR,w + call getcwlen + movwf ELECNT + movf ELECNT,f + btfsc STATUS,Z + return + movf CHAR,w + xorwf PARITY,f + +char_next_element + bsf PORTA,CW_OUT + btfss ELEMENT,7 + movf DOT,w + btfsc ELEMENT,7 + movf DASH,w + call dottime + bcf PORTA,CW_OUT + + rlf ELEMENT,f + + decfsz ELECNT,f + goto char_espace + return + +char_espace + movf ESPACE,w + call dottime + goto char_next_element + + ;; ------------------------------------- +send_callsign + movlw .6 + movwf CHARCNT + +callsign_next_char + call callsign + call send_char + decfsz CHARCNT,f + goto callsign_cspace + return + +callsign_cspace + movf CSPACE,w + call dottime + movf CHARCNT,w + goto callsign_next_char + + ;; ------------------------------------- +send_base32 + movwf PENTLECNT + +case0 + rrf INDF0,w + movwf PENTLE0 + rrf PENTLE0,f + rrf PENTLE0,w + andlw b'00011111' + call base32 + call send_char + decfsz PENTLECNT,f + goto case1 + return + +case1 + movf CSPACE,w + call dottime + rlf INDF0,w + movwf PENTLE0 + rlf PENTLE0,w + andlw b'00011100' + movwf PENTLE0 + incf FSR0L,f + swapf INDF0,w + movwf PENTLE1 + rrf PENTLE1,f + rrf PENTLE1,w + andlw b'00000011' + iorwf PENTLE0,w + call base32 + call send_char + decfsz PENTLECNT,f + goto case2 + return + +case2 + movf CSPACE,w + call dottime + rrf INDF0,w + andlw b'00011111' + call base32 + call send_char + decfsz PENTLECNT,f + goto case3 + return + +case3 + movf CSPACE,w + call dottime + swapf INDF0,w + andlw b'00010000' + movwf PENTLE0 + incf FSR0L,f + swapf INDF0,w + andlw b'00001111' + iorwf PENTLE0,w + call base32 + call send_char + decfsz PENTLECNT,f + goto case4 + return + +case4 + movf CSPACE,w + call dottime + rlf INDF0,w + andlw b'00011110' + movwf PENTLE0 + incf FSR0L,f + btfsc INDF0,7 + bsf PENTLE0,0 + movf PENTLE0,w + call base32 + call send_char + decfsz PENTLECNT,f + goto case5 + return + +case5 + movf CSPACE,w + call dottime + rrf INDF0,w + movwf PENTLE0 + rrf PENTLE0,w + andlw b'00011111' + call base32 + call send_char + decfsz PENTLECNT,f + goto case6 + return + +case6 + movf CSPACE,w + call dottime + swapf INDF0,w + movwf PENTLE0 + rrf PENTLE0,w + andlw b'00011000' + movwf PENTLE0 + incf FSR0L,f + swapf INDF0,w + movwf PENTLE1 + rrf PENTLE1,w + andlw b'00000111' + iorwf PENTLE0,w + call base32 + call send_char + decfsz PENTLECNT,f + goto case7 + return + +case7 + movf CSPACE,w + call dottime + movf INDF0,w + andlw b'00011111' + call base32 + call send_char + decfsz PENTLECNT,f + goto caseend + return + +caseend + movf CSPACE,w + call dottime + incf FSR0L,f + goto case0 + + ;; ------------------------------------- +send_cnt + rlf BEACONCNTL,w + movwf TMP2 + rlf BEACONCNTH,w + movwf TMP1 + movlw TMP1 + movwf FSR0L + clrf FSR0H + movlw .3 + call send_base32 + return + + ;; ------------------------------------- +send_parity + movf PARITY,w + btfsc PARITY,5 + xorlw b'00000001' + andlw b'00011111' + call base32 + call send_char + + movf WSPACE,w + call dottime + return + + ;; ------------------------------------- +send_beacon + bsf PORTA,CW_ENABLE + movf TUNE,w + call dottime + clrf PARITY + + movlw START_CHAR + call send_char + + movf WSPACE,w + call dottime + + call send_callsign + + movf WSPACE,w + call dottime + + call send_cnt + + movf WSPACE,w + call dottime + + call send_parity + + incfsz BEACONCNTL,f + goto beacon_end + incf BEACONCNTH,f + ;; TODO write new cnt value to EEPROM + +beacon_end + bcf PORTA,CW_ENABLE + return + ;; ------------------------------------- |