K2805 INSTRUCTION MANUAL

This software is copyright by James Rickard 1998.

This software is available for free distribution except that it
cannot be distributed by Dick Smith Electronics.

This software drives the DSE K-2805 Parallel Port Interface Kit.
The K-2805 provides 12 analogue inputs of 0-5V, 2 analogue outputs
of 0-5V, and an 8 port binary output interface. Unlike the original 
16 bit DOS only software provided with the K-2805, this software runs
under Windows-95/98 in full 32 bit mode.

INSTALLING THE K2805 PROGRAM ON WINDOWS95: -
If installing from floppy disk -
1. Insert the floppy disk into the A: drive of the computer.
2. Double click My Computer.
3. Double click A drive.
4. Double click on INSTALL. 

If installing from hard drive -
1. Unzip the distribution file into a spare directory.
2. Open the directory that the distribution file was extracted to.
3. Double click on INSTALL.

The .DLL files will be installed in the appropriate system directories, and the K2805 program will be installed in the C:\K2805 directory.

INSTALLING THE K2805 DATA ACQUISITION UNIT: -
1. Shut down Windows95
2. Turn off the power to the computer.
3. Disconnect the power cord.
4. Install the cable from the K2805 into the parallel port on the computer. Make sure the connector is seated correctly. Note which port the K2805 is connected to.
5. Reconnect the power cord.
6. Turn on the power to the computer.
7. Start up Windows95.

TO ACTIVATE THE K2805 PROGRAM: -

There are several ways of activating the program. 

The simplest way is to double click on the K2805 Icon, which should be on the Desktop.

Another way to activate the program is: -
1. Double Click on My Computer
2. Double Click on the K2805 Folder.
3. Double click on the K2805 program.

WHEN THE K2805 PROGRAM IS RUNNING, THE FIRST STEP IS TO SET UP SOME OF THE CONTROL PARAMETERS: -
1. Click on EDIT/OPTIONS. 
2. Select the particular line printer port to which the K2805 is connected.
3. Set the sampling interval for the Analogue to Digital Converter (ADC). This is the time between samples. The minimum value should be about 0.1 seconds because the K2805 ADC can only take about 10 samples per second maximum.
4. Select the path and file name to be used for storing the samples from the ADC.
5. Click on OK.

N.B. It is absolutely essential to select a LPT port as in step 2 above before starting sampling. If you do not select an LPT, the program will hang! You have been warned....

SETTING THE BINARY OUTPUTS: -
1. Click on the buttons for the binary output. A tick will appear to show if the bit is set or ON, and the tick will disappear to show the bit is cleared or OFF.

SETTING THE DIGITAL TO ANALOGUE OUTPUTS: -
1. The K2805 has a 2 channel Digital to Analogue Converted (DAC). Select channel 0 or 1.
2. Type in a value between O and 4.98 Volts. ( O volts corresponds to 0 binary, and 4.98 volts corresponds to 255 binary)
3. Click on the 'Write to DAC' to have both DACs updated to the new values. This can be done at any time.

SETTING THE ANALOGUE TO DIGITAL CONVERTERS (ADC): -
1. Use the slider bar to select the number of channels which it is required to sample. Channel 10 is the power supply voltage to the K2805. Channel 11 is a check channel and should always read 2.5.
2. If it is required to record the data to a file then click on the 'Recording On' button.
3. Type in the number of samples which is required to be taken into the  'Samples to Go' text box. Values from 0 to 32767 are acceptable.
4. When ready to start ADC sampling, click on the 'ADC Sampling Start' button. If Recording was selected in step 2 then samples will be written to the selected file.
5. Sampling will stop when the counter reaches 0, or the user clicks on the 'ADC Sampling Stop' button.
6. The data file can by imported into a Microsoft Excel Spreadsheet, or other data processing applications.


Send queries to James Rickard at drickard@technet2000.com.au
