500-003111-000
4-23
BEGIN SEQUENCE:
AUTOCALIBRATION
INITIALIZE REGISTERS
END OF SEQUENCE
Figure 4.8.2-1. Program Flowchart - Converter Autocalibration
YES
M3111/F4.8.2-1
SET NEXT BIT IN ZERO
CALIBRATION DAC
DELAY
DO CONVERSION OF ZERO TEST REF
AND STORE THE READING
COMPARE TO CORRECT VALUE
IS ERROR
NOW
NEGATIVE?
LSB OF
CORRECTION
REGISTER
CHECKED?
CLEAR THIS BIT
NO
YES
NO
YES
SET NEXT BIT IN GAIN
CALIBRATION DAC
DELAY
DO CONVERSION OF POS TEST REF
AND STORE THE READING
COMPARE TO CORRECT VALUE
IS ERROR
NOW
NEGATIVE?
LSB OF
CORRECTION
REGISTER
CHECKED?
CLEAR THIS BIT
NO
YES
NO
DECREMENT BIT COUNTER
DECREMENT BIT COUNTER
SET BIT COUNTER TO START
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