### Using Digi's Diagnostic Program for ISA Adapters

Use the diagnostics tool provided by Digi to help you verify the operation of your Digi adapter. The DOS-based diagnostic runs a series of tests on the adapter.

#### Accessing the Program

The diagnostics program must be downloaded from the Digi Technical Support web site, then copied to a blank diskette. For instructions, see Creating Diagnostics Diskettes.

#### Procedure

1. Start MS-DOS.
2. Insert the diskette containing the diagnostic software in the diskette drive.
3. Enter one of the following commands, depending on the model of adapter you have:

   (Xr, Xem, EPC/X adapters) | `A:\RISC\UD-RISC.EXE`
   (Xe, C/X adapters) | `A:\CISC\UD-CISC.EXE`

4. Select an adapter family from the list.
5. Now you need to enter two parameters: the adapter's I/O address (as set on the DIP switches), and the Base Memory Address. If you are unsure of what Base Memory Address to use, the Digi Memory Map Utility can help you find available address space. See Memory Map Utility: ISA Adapters.

   The other parameters are automatically filled in with default values similar to the following:

   Window Size: | 32K
   IRQ: | Disabled
   Machine Environment: | ISA
   Port: | 1
   EIA-232/422: | 232
   Loopback: | No
   Continuous Test: | Yes
   Stop on first: | Yes

6. Press R to start the tests. The tests run consecutively, and pass/fail status is indicated on the right hand side of your screen.
7. If all the tests pass, the adapter is functioning correctly and you are ready to install the device driver software. Make a note of the Base Memory Address and I/O address before exiting the diagnostic program (you will need to specify these when you install the device driver software).

   If failures occur, the most likely cause is a memory conflict. Try a different Base Memory Address and execute the diagnostics again. If you get a Hardware Reset Error, try a different I/O address (be sure to set the DIP switches for the new address).