do256: lda #$C9
jsr lcdcmdo ;position LCD cursor at the right spot
lda CNT
deca
jsr lcdbyto
;display current iteration $FF downto $00
lda #':'
jsr lcdchro
jsr adcbyti ;get reading
add RA
sta RA
lda RB
adc #$00
sta RB ;add into RB:RA (16 bit add)
jsr lcdbyto ;show RB
lda RA
jsr lcdbyto ;then RA
dbnz CNT,do256 ;and do 256x
lsl RA ;get bit7 into carry
bcc nochg ;if C=0 then no need to round up
inc RB ;otherwise round up
nochg: lda RB ;we can discard RA: average value is in RB
ldhx #N1 ;point to flash location
jsr wrflash ;burn it in!
ldhx #msg05c ;ask for 160mm
jsr lcdstro
waitPB2: brset 2,porta,waitPB2 ;wait for ENT
ldhx #msg05d ;2nd point cal: show values
jsr lcdstro
clr CNT ;ditto as 1st point cal
clr RB
clr RA
do256b: lda #$C9
jsr lcdcmdo
lda CNT
deca
jsr lcdbyto
lda #':'
jsr lcdchro
jsr adcbyti
add RA
sta RA
lda RB
adc #$00
sta RB
jsr lcdbyto
lda RA
jsr lcdbyto
dbnz CNT,do256b
lsl RA
bcc nochg2
inc RB
nochg2: lda RB
cmp N1 ;compare N2 to N1
bne validcal ;if different, we are OK
ldhx #msg05e ;otherwise warn of INVALID CAL!
jsr lcdstro
jsr del1s
jsr del1s
jsr del1s ;wait 2s
jmp CALIB ;try cal again
AN1950
Sensors
10
Freescale Semiconductor
相关PDF资料
KN500B1/4 SWITCH KNOB STRAIGHT .50" BLACK
KN5700B1/4 SWITCH KNOB STRAIGHT .75" BLACK
KN700B1/4 SWITCH KNOB STRAIGHT .75" BLACK
KS-100 PROTECTIVE COVER FOR RELAYS
KTKK-0500 CONN HEAT SHRINK TUBE SZ 8 STR
KTKK-0674 CONN HEAT SHRINK TUBE SZ E STR
KTKK-1123 CONN HEAT SHRINK TUBE SZ D ANG
KTR10EZPJ302 RES 3.0K OHM 1/8W 5% 0805 SMD
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