Delta 36-R31 User Manual download pdf (Page 26)

ACC-36E Manual

USing acc-36E with power umac 26

ADC Automatic Read Example 1

Setting up Power UMAC with an ACC-36E at I/O base address offset $A00000 to automatically read all

16 ADCs, allowing the user to choose unipolar or bipolar mode:

1. A/D Ring Pointers:

AdcDemux.Address[0] = $A00000; // ADC Pair #1 (ADC#1 & #09)

AdcDemux.Address[1] = $A00000; // ADC Pair #2 (ADC#2 & #10)

AdcDemux.Address[2] = $A00000; // ADC Pair #3 (ADC#3 & #11)

AdcDemux.Address[3] = $A00000; // ADC Pair #4 (ADC#4 & #12)

AdcDemux.Address[4] = $A00000; // ADC Pair #5 (ADC#5 & #13)

AdcDemux.Address[5] = $A00000; // ADC Pair #6 (ADC#6 & #14)

AdcDemux.Address[6] = $A00000; // ADC Pair #7 (ADC#7 & #15)

AdcDemux.Address[7] = $A00000; // ADC Pair #8 (ADC#8 & #16)

2. A/D Convert Codes:

Pair #

Unipolar

Bipolar

AdcDemux.ConvertCode[0]=$000000;

AdcDemux.ConvertCode[0]=$800800;

AdcDemux.ConvertCode[1]=$100100;

AdcDemux.ConvertCode[1]=$900900;

AdcDemux.ConvertCode[2]=$200200;

AdcDemux.ConvertCode[2]=$A00A00;

AdcDemux.ConvertCode[3]=$300300;

AdcDemux.ConvertCode[3]=$B00B00;

AdcDemux.ConvertCode[4]=$400400;

AdcDemux.ConvertCode[4]=$C00C00;

AdcDemux.ConvertCode[5]=$500500;

AdcDemux.ConvertCode[5]=$D00D00;

AdcDemux.ConvertCode[6]=$600600;

AdcDemux.ConvertCode[6]=$E00E00;

AdcDemux.ConvertCode[7]=$700700;

AdcDemux.ConvertCode[7]=$F00F00;

3. A/D Processing Ring Size:

AdcDemux.Enable = 8; // Demux 8 ADC pairs

4. Accessing the A/D Registers:

The resulting data is found in AdcDemux.ResultLow[i], containing the ADC result for the

lower-numbered ADC in the pair (e.g. ADC #1 in the pair consisting of ADCs #1 and #9), and

AdcDemux.ResultHigh[i], containing the ADC result for the higher-numbered ADC in the pair

(e.g. ADC #9 in the pair consisting of ADCs #1 and #9).

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Delta 36-R31 User Manual Page 26