Delta 36-R31 User Manual download pdf (Page 24)

ACC-36E Manual

USing acc-36E with power umac 24

Automatic ADC Read

The automatic read function demultiplexes the data into individual registers and stores them once every

AdcDemux.Enable phase cycles in accessible memory locations. It can handle up to a total of 32 ADC

channels (16 pairs). There are 16 ADCs (8 pairs) per base address (or ACC-36E card) for a maximum of 2

base addresses (i.e. two ACC-36E cards) as follows:

Pair #

ACC-36E

Pair #

ACC-36E

ADC#1

ADC#9

ADC#1

ADC#9

ADC#2

ADC#10

ADC#2

ADC#10

ADC#3

ADC#11

ADC#3

ADC#11

ADC#4

ADC#12

ADC#4

ADC#12

ADC#5

ADC#13

ADC#5

ADC#13

ADC#6

ADC#14

ADC#6

ADC#14

ADC#7

ADC#15

ADC#7

ADC#15

ADC#8

ADC#16

ADC#8

ADC#16

These are the necessary steps for setting up the automatic read function:

1. Configure A/D Ring Pointers: AdcDemux.Address[i].

For each pair with index i, AdcDemux.Address[i] must be set to the Power PMAC I/O base

offset as specified in the Addressing section of this manual. Typically, pairs 1 – 8 are assigned to

the first ACC-36E, pairs 9 – 16 are assigned to the second ACC-36E.

Ring Pointers

Pair #

Ring Pointers

Pair #

AdcDemux.Address[0]

AdcDemux.Address[8]

AdcDemux.Address[1]

AdcDemux.Address[9]

AdcDemux.Address[2]

AdcDemux.Address[10]

AdcDemux.Address[3]

AdcDemux.Address[11]

AdcDemux.Address[4]

AdcDemux.Address[12]

AdcDemux.Address[5]

AdcDemux.Address[13]

AdcDemux.Address[6]

AdcDemux.Address[14]

AdcDemux.Address[7]

AdcDemux.Address[15]

2. Configure A/D Ring Convert Codes: AdcDemux.ConvertCode[i].

The convert code allows the user to select the input mode, whether unipolar or bipolar, as well as

the number of the ADC pair (Hardware Pair#) to sample.

Setup Structures

Definition of n

Mode

Voltage Input

AdcDemux.ConvertCode[i]=$n00n00

n = (Hardware Pair #) - 1

Unipolar

Positive Only

n = (Hardware Pair #) +7

Bipolar

Positive/Negative

Note

Hardware Pair# in this case assumes per-card pairs (i.e., Hardware

Pair# can only run from 1 to 8, because there are only 8 pairs per card,

whereas Software Pair# can run from 0 to 15, since those are the

indices of the AdcDemux structures).

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 83 84

Comments to this Manuals

No comments

Delta 36-R31 User Manual Page 24

Comments to this Manuals

Related products and manuals for Circular saws Delta 36-R31