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;;
;; mur.sat
;;
;; Somewhen in the year 20xx, 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) 2011-2015 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/>.
;;
;; -------------------------------------
;; DEFINES
;; constants
sol_calc_power_single
clrf SOL_CALC_0
clrf SOL_CALC_1
clrf SOL_CALC_2
movlw .4
movwf SOL_CALC_CNT
;; sum up all currents -> SOL_CALC_0:2
sol_sum_current
movf INDF,w
bcf STATUS,C
addwf SOL_CALC_0,f
btfsc STATUS,C
incf SOL_CALC_1,f
incf FSR,f
decfsz SOL_CALC_CNT,f
goto sol_sum_current
movf INDF,w
movwf SOL_CALC_9
clrf SOL_CALC_3
clrf SOL_CALC_4
clrf SOL_CALC_5
;; multiply SOL_CALC_0:2 with SOL_CALC_9 -> SOL_CALC_3:5
movlw .8
movwf SOL_CALC_CNT
sol_mula_vc
btfss SOL_CALC_9,0
goto sol_mula_rotate
bcf STATUS,C
movf SOL_CALC_0,w
addwf SOL_CALC_3,f
btfss STATUS,C
goto sol_mula_vc1
bcf STATUS,C
movlw .1
addwf SOL_CALC_4,f
btfsc STATUS,C
incf SOL_CALC_5,f
sol_mula_vc1
bcf STATUS,C
movf SOL_CALC_1,w
addwf SOL_CALC_4,f
btfsc STATUS,C
incf SOL_CALC_5,f
movf SOL_CALC_2,w
addwf SOL_CALC_5,f
sol_mula_rotate
rrf SOL_CALC_9,f
bcf STATUS,C
rlf SOL_CALC_0,f
rlf SOL_CALC_1,f
rlf SOL_CALC_2,f
decfsz SOL_CALC_CNT,f
goto sol_mula_vc
return
;; -------------------------------------
solar_calc_power
;; calc power of power line 1
movlw ADC_SOLAR_C0
movwf FSR
call sol_calc_power_single
;; move SOL_CALC_3:5 -> SOL_CALC_6:8
movf SOL_CALC_3,w
movwf SOL_CALC_6
movf SOL_CALC_4,w
movwf SOL_CALC_7
movf SOL_CALC_5,w
movwf SOL_CALC_8
;; calc power of power line 2
movlw ADC_SOLAR_C4
movwf FSR
call sol_calc_power_single
;; add SOL_CALC_3:5 to SOL_CALC_6:8 -> SOL_CALC_6:8
bcf STATUS,C
movf SOL_CALC_3,w
addwf SOL_CALC_6,f
btfss STATUS,C
goto solar_calc_power1
bcf STATUS,C
movlw .1
addwf SOL_CALC_7,f
btfsc STATUS,C
incf SOL_CALC_8,f
solar_calc_power1
movf SOL_CALC_4,w
addwf SOL_CALC_7,f
btfsc STATUS,C
incf SOL_CALC_8,f
movf SOL_CALC_5,w
addwf SOL_CALC_8,f
;; SOL_CALC_6:8 << 1 -> SOL_CALC_6:8
rlf SOL_CALC_6,f
rlf SOL_CALC_7,f
rlf SOL_CALC_8,f
;; if(SOL_CALC_6 & 0x80) SOL_CALC_7:8+=1
bcf STATUS,C
movlw .1
btfsc SOL_CALC_6,7
addwf SOL_CALC_7,f
btfsc STATUS,C
incf SOL_CALC_8,f
;; SOL_CALC_7 -> SOL_POWERL, SOL_CALC_8 -> SOL_POWERH
movf SOL_CALC_7,w
movwf SOL_POWERL
movf SOL_CALC_8,w
movwf SOL_POWERH
return
;; -------------------------------------
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