Motorola CPU32 User's Guide download pdf (Page 96)

Preprocessor Problems

This section lists problems that you might encounter when using a

preprocessor. If the solutions suggested here do not correct the

problem, you may have a damaged preprocessor. Contact your local

Hewlett-Packard Sales Office if you need further assistance.

Target system will not boot up

If the target system will not boot up after connecting the preprocessor

interface, the microprocessor (if socketed) or the preprocessor interface may

not be installed properly, or they may not be making electrical contact.

Ensure that you are following the correct power-on sequence for the

preprocessor and target system.

1 Power up the analyzer and preprocessor.

2 Power up the target system.

If you power up the target system before you power up the preprocessor,

interface circuitry in the preprocessor may latch up and prevent proper

target system operation.

Verify that the microprocessor and the preprocessor interface are

properly rotated and aligned, so that the index pin on the

microprocessor (pin A1) matches the index pin on the preprocessor

interface.

Verify that the microprocessor and the preprocessor interface are

securely inserted into their respective sockets.

Verify that the logic analyzer cables are in the proper sockets of the

preprocessor interface and are firmly inserted.

E2480A Motorola CPU32 Preprocessor Interface 5–5

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Motorola CPU32 User's Guide Page 96