Specifications

Comedi
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Configuration options:
[0] - I/O port base
[1] - unused
[2] - Analog input reference
0 = single ended
1 = differential
[3] - Analog input encoding (must match jumpers)
0 = straight binary
1 = two’s complement
5.5.90 pcmda12 -- A driver for the Winsystems PCM-D/A-12
Author: Calin Culianu <[e-mail]>
Status: works
Manufacturer Device Name
Winsystems PCM-D/A-12 pcmda12
A driver for the relatively straightforward-to-program PCM-D/A-12.
This board doesn’t support commands, and the only way to set its
analog output range is to jumper the board. As such,
comedi_data_write() ignores the range value specified.
The board uses 16 consecutive I/O addresses starting at the I/O port
base address. Each address corresponds to the LSB then MSB of a
particular channel from 0-7.
Note that the board is not ISA-PNP capable and thus
needs the I/O port comedi_config parameter.
Note that passing a nonzero value as the second config option will
enable "simultaneous xfer" mode for this board, in which AO writes
will not take effect until a subsequent read of any AO channel. This
is so that one can speed up programming by preloading all AO registers
with values before simultaneously setting them to take effect with one
read command.
Configuration Options:
[0] - I/O port base address
[1] - Do Simultaneous Xfer (see description)
5.5.91 pcmmio -- A driver for the PCM-MIO multifunction board
Author: Calin Culianu <[e-mail]>
Status: works