ADC-20 PICO TECHNOLOGY, ADC-20 Datasheet - Page 24

• 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

21
5.4.6
adc20.en
This function retrieves the reading when the
called.
Arguments
handle
value
overflow
Returns
1
0
Sample code
Code extract to get a single value reading without blocking the calling thread:
HRDLGetSingleValueAsync
short HRDLGetSingleValueAsync (
void main()
{
BOOL
short channelNo;
long
short handle;
// open and initialise the unit
// set the channel parameters
channelNo = HRDL_ANALOG_IN_CHANNEL_1;
range = HRDL_2500_MV;
singleEnded = TRUE;
bConversionFinished = FALSE;
while (true)
{
short handle,
long
short * overflow )
if a valid handle is passed and the function succeeds
if not
PollSingleValue(handle,
if(bConversionFinished == TRUE)
{
.
.
.
// do something with the value
channelNo++;
Handle returned by
Pointer to a long where the ADC value will be written
Pointer to a value that indicates when the voltage on a channel has
exceeded the upper or lower limits.
Bit 0: Channel 1
...
Bit 15: Channel 16
bConversionFinished = FALSE;
value;
* value,
&bConversionFinished,
&value,
channelNo,
range,
singleEnded);
HRDLOpenUnit
HRDLCollectSingleValueAsync
Copyright © 2005-2010 Pico Technology Ltd. All rights reserved.
Programmer's reference
has been