Specifications

149

BASE+9 to clear FIFO. Then to set the A/D range as 0 V to 10 V,

and to set the D/A range as 0 V to 10 V. Next, writing 0xFFFF to

corresponding D/A registers (BASE+10 and BASE+12).

3. Writing the value from 0x0400 to 0x04FF sequentially to

Calibration Command and Data register (BASE+18), and get

each bipolar range’s data by software trigger A/D method. Be

noted that to repeat this procedure 1000 times then to average

those data for each value. After that, to see whether the average

data is close to 65534.6. If so, to go to next step. Otherwise, you

must change the value and repeat all the procedure in this step

again until the average data close to 65534.6.

4. Adjust GAIN 5V calibration. First, writing any value to BASE+9

to clear FIFO. Then to set the A/D range as -5 V to +5 V, and to

set the D/A range as 0 V to 5 V. Next, writing 0xFFFF to

corresponding D/A registers (BASE+10 and BASE+12).

5. Writing the value fro m 0x0500 to 0x05FF sequentially to