ADC-20 PICO TECHNOLOGY, ADC-20 Datasheet - Page 37

• Manufacturer Part Number: ADC-20
• Description: DATALOGGER, HI-RES
• Manufacturer: PICO TECHNOLOGY

Specifications of ADC-20

• Connector Type: D25 Female
• Interface: USB 1.1 (USB 2.0 Compatible)
• No. Of Channels: 8
• Power Supply: From USB
• Resolution: 20 Bits
• Interface Type: USB 1.1 (USB 2.0 Compatible)
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na

ADC-20/ADC-24 User's Guide
Copyright © 2005-2010 Pico Technology Ltd. All rights reserved.
Examples:
Example bit patterns for
The above is a selection of the 16 different options available for the
parameter. When a digital channel has been selected as an output, it can then be set
on or off with the
to represent the different digital channels.
The default setting for the digital channels is "output, off".
Decimal Bit
1
10
12
13
To set digital channels 1 and 2 to input and digital channels 3 and 4 to output:
directionOut =
HRDL_DIGITAL_IO_CHANNEL_4 (8) + HRDL_DIGITAL_IO_CHANNEL_3 (4) = 12
To set digital channel 4 high and digital channel 3 low:
digitalOutPinState = HRDL_DIGITAL_IO_CHANNEL_4 (8) = 8
To set only digital channel 3 high:
digitalOutPinState = HRDL_DIGITAL_IO_CHANNEL_3 (4) = 4
To turn both digital channels 3 and 4 on:
digitalOutPinState =
HRDL_DIGITAL_IO_CHANNEL_4 (8) + HRDL_DIGITAL_IO_CHANNEL_3 (4) = 12
Pattern
0001
1010
1100
1101
digitalOutputPinState
Digital
Channel 4
Input
Output
Output
Output
directionOut
Digital
Channel 3
Input
Input
Output
Output
parameter:
parameter, again using binary bit patterns
Digital
Channel 2
Input
Output
Input
Input
Digital
Channel 1
Output
Input
Input
Output
directionOut
adc20.en
34