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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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MPXM2010GS Datasheet(PDF) 17 Page - Freescale Semiconductor, Inc |
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MPXM2010GS Datasheet(HTML) 17 Page - Freescale Semiconductor, Inc |
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17 / 24 page  AN1950 Sensors Freescale Semiconductor 17 uPB2: bclr 4,porta ;***ENT*** confirms menu choice bclr 5,porta ;LEDs off lda RA ;get menu choice bne SelIN SelCM: ldhx #$A014 ;initialize default units to cm ($A0=cm, $3F=in) sthx UnitType ;UnitType set to $A0; UnitDiv set to $14 ldhx #$039E sthx UnitEmpt ;UnitEmpt set to $03; UnitFull set to $9E lda #$01 jsr lcdcmdo ;clear LCD ldhx #msg03a jsr lcdstro ;and show choice selection to be cm jsr del1s ;wait 1s jmp LEVEL ;let's do LEVEL now... SelIN: ldhx #$3F08 ;initialize default units to in ($A0=cm, $3F=in) sthx UnitType ;UnitType set to $3F; UnitDiv set to $08 ldhx #$033D sthx UnitEmpt ;UnitEmpt set to $03; UnitFull set to $3D lda #$01 jsr lcdcmdo ;clear LCD ldhx #msg03b jsr lcdstro ;and show choice selection to be in jsr del1s ;wait 1s jmp LEVEL ;let's do LEVEL now... ;__________________________________________________________ ;__________________________________________________________ ;__________________________________________________________ ;******************************************************************** ;******************************************************************** ;******** GENERAL Routines ****************************************** ;******************************************************************** ;******************************************************************** ;-------- INITIALIZATION Routines ----------------------------------- ; ALLINIT: initializes HC08, sets I/O, resets LCD and LEDs ; ------- ALLINIT: bset 0,config1 ;disable COP mov #$38,ddra ;PTA0=MPAK,PTA1=SEL,PTA2=ENT,PTA3=E,PTA4=RS,PTA5=clk mov #$30,adiclk ;ADC clock /2 bclr 3,porta ;E=0 bclr 4,porta ;grn=OFF; RS=0 bclr 5,porta ;red=OFF; CLK=0 rts ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; WARMUP: waits half a second while it flashes LEDs, and allows LCD to get ready ; ------ WARMUP: bclr 4,porta bclr 5,porta ;LEDs off lda #$0A ;prepare to do this 10x tenx: jsr del25ms ;delay bclr 4,porta bset 5,porta ;alternate on/off jsr del25ms bset 4,porta bclr 5,porta ;and off/on dbnza tenx ;10 times so the LCD can get ready (slow startup) jsr lcdinit ;now initialize it |
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