Mercurial > public > hwos_code
diff src/adc_lightsensor.asm @ 37:0e1723f2761e
use four additional data points for the battery monitor
| author | mh@mh-THINK.fritz.box |
|---|---|
| date | Thu, 15 Aug 2013 12:39:05 +0200 |
| parents | 11d4fc797f74 |
| children | 18fe4e668baa |
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--- a/src/adc_lightsensor.asm Sun Aug 04 18:13:18 2013 +0200 +++ b/src/adc_lightsensor.asm Thu Aug 15 12:39:05 2013 +0200 @@ -102,11 +102,59 @@ cpfslt lo movwf lo ; lo will be between 100 (Full) and 0 (empty) + +; use 3,6V battery sensing based on 50mA load +; 75% + movff batt_voltage+0,sub_b+0 + movff batt_voltage+1,sub_b+1 + movlw LOW lithium_36v_75 + movwf sub_a+0 + movlw HIGH lithium_36v_75 + movwf sub_a+1 + call subU16 ; sub_c = sub_a - sub_b + btfsc neg_flag + bra get_battery_voltage3a + movlw .75 + movwf lo +get_battery_voltage3a: +; 50% + movlw LOW lithium_36v_50 + movwf sub_a+0 + movlw HIGH lithium_36v_50 + movwf sub_a+1 + call subU16 ; sub_c = sub_a - sub_b + btfsc neg_flag + bra get_battery_voltage3b + movlw .50 + movwf lo +get_battery_voltage3b: + ; 25% + movlw LOW lithium_36v_25 + movwf sub_a+0 + movlw HIGH lithium_36v_25 + movwf sub_a+1 + call subU16 ; sub_c = sub_a - sub_b + btfsc neg_flag + bra get_battery_voltage3c + movlw .25 + movwf lo +get_battery_voltage3c: + ; 10% + movlw LOW lithium_36v_10 + movwf sub_a+0 + movlw HIGH lithium_36v_10 + movwf sub_a+1 + call subU16 ; sub_c = sub_a - sub_b + btfsc neg_flag + bra get_battery_voltage3d + movlw .10 + movwf lo +get_battery_voltage3d: movf batt_percent,W cpfsgt lo ; keep batt_percent on the lowest value found movff lo,batt_percent ; store value - btfsc battery_is_36v ; but always use computed value for 3,6V battery - movff lo,batt_percent ; store value +; btfsc battery_is_36v ; but always use computed value for 3,6V battery +; movff lo,batt_percent ; store value bcf adc_running ; =1: The ADC is in use return