Motorola M68CPU32BUG Manuel d'utilisateur télécharger pdf (Page 38)

OPERATING INSTRUCTIONS

M68332BCC/D 3-10 MOTOROLA

REV 1

3.4.4 Diagnostic Monitor

The diagnostic monitor is a series of self-tests for the MC68332 MCU device. The diagnostic

monitor is programmed into the BCC EPROM. For more information on the diagnostic monitor,

refer to Chapter 6 of the M68CPU32BUG Debug Monitor User’s Manual,

M68CPU32BUG/AD1. The diagnostic monitor commands are:

• HE (help) command displays a menu of the top level directory.

• ST (self test) command executes self-test diagnostics.

• SD (switch directories) command toggles between the CPU32Bug directory and the

CPU32Diag directory.

• LE (loop-on-error) endlessly repeats a test at the point where an error is detected.

• SE (Stop-On-Error) halts a test at the point where an error is detected.

• LC (loop-continue) endlessly repeats a test or series of tests.

• NV (non-verbose)suppresses all error messages except PASSED or FAILED.

• DE (display error counters) displays the results of a particular test.

• ZE (clear error counters) resets all error counters to zero.

• DP (display pass count) is the number of passes in loop-continue mode. Under this

command the count is displayed with other information at the conclusion of each

pass.

• ZP (zero pass count) resets the pass counter to zero.

Available utilities are:

– WL - Write Loop

– RL - Read Loop

– WR - Read/Write Loop

CPU tests are a series of diagnostics provided to test the CPU portion of the MC68332

MPU:

– CPU A - Register Test

– CPU B - Instruction Test

– CPU C - Address Mode Test

– CPU D - Exception Processing Test

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Motorola M68CPU32BUG Manuel d'utilisateur Page 38