blockPhysicalDataWrite
Extends from Modelica_DeviceDrivers.Utilities.Icons.BaseIcon (Base icon for blocks providing access to external devices), Modelica_DeviceDrivers.Utilities.Icons.PartialClockedDeviceDriverIcon, Modelica_DeviceDrivers.Utilities.Icons.LinuxTuxBlockIcon (Icon for blocks that are only supported under Linux (Tux from JZA placed into the public domain, http://openclipart.org/detail/168653/tux-enhanced-by-jza).).
Information
The parameter comedi needs to be set to a valid Comedi device handle, i.e., needs to be set to the record member dh of a ComediConfig record instance.
Uses the Comedi function comedi_from_phys(..) to support providing a physical value (volts or milliamps) as input to the DAC. See the Comedi documentation for the meanings of the parameters subDevice, channel, range, aref.
Note
Only supported for Linux, since Comedi is only available for linux (http://www.comedi.org/). Requires that Comedilib is installed and that the simulation process has sufficient privileges to access the intended device (usually that means "root" privileges).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Comedi | comedi | Handle to comedi device | |
| Integer | subDevice | 1 | Subdevice |
| Integer | channel | 0 | Channel |
| Integer | range | 0 | Range |
| Types.Aref | aref | Types.Aref.AREF_GROUND | (ground) Reference to use |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | u |