Testing and Diagnosing PDA/Smart Phone Boards

The Processor-Controlled Test (PCT) processor board test solutions from ASSET InterTech can be used to test all types of CPU-based boards. This application brief shows how the solution can be configured to test a PDA/Smart Phone.

In Figure 1 above, the tester consists of a host PC (7) with a Functional Test Controller Card (1), and a Processor Control POD (2). The tester takes control of the UUT's processor via its debug port (4). Once in control, test programs and diagnostics can be directed and sequenced under the control of the host PC. Additionally an I/O Emulator (3) is available, which provides the facilities to stimulate and/or measure activity on the board's I/O connector (5). Using this top-down and bottom-up approach full testing of the UUT (6) can take place in seconds, rather than minutes.

Figure 2 above shows an optional fixture, which can be used to automate the connection of UUT to the test instruments - ideal for high volume production test.

Figure 3 below shows how the tester's hardware components are configured for an example PDA application, and the following table shows the test sequence and program, which is run by the tester. Results returned are pass/fail, or pass/fail with full diagnostics to bus and component level.