User guide

AN89
6 AN89Rev2
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* Program Code
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ORG $0100
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* Routine - Main
* Input - none
* Output - none
* This is the entry point to the program.
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MAIN EQU * ; Start from Reset Vector
******** Initialize System and Perform SELF OFFSET Calibration
JSR initialize ; Initialize the system
JSR calibrate ; Calibrate the ADC Offset
******** Write to the GAIN Register
LDA #$82 ; Prepare COMMANDBYTE
STA COMMANDBYTE
LDA #$80 ; Prepare HIGHBYTE
STA HIGHBYTE
CLR MIDBYTE ; Prepare MIDBYTE
CLR LOWBYTE ; Prepare LOWBYTE
JSR write_register ; Write to Gain Register
******** Read from the GAIN Register
LDA #$92 ; Prepare COMMANDBYTE
STA COMMANDBYTE
JSR read_register ; Read the Gain Register
******** Perform Single Conversions
LOOP JSR convert ; Convert Analog input
JMP LOOP ; Repeat Loop
******** End MAIN