Motorola M68CPU32BUG Manuel d'utilisateur télécharger pdf (Page 33)

OPERATING INSTRUCTIONS

M68332BCC/D 3-5 MOTOROLA

REV 1

3.3 OPERATING PROCEDURE

A Power On Reset (POR) occurs when power is applied to the BCC. This POR condition resets

the MCU and user I/O port circuitry. After a POR occurs, processing control passes to the

monitor program. All MC68332 registers are set to their reset state during monitor power-up.

The input serial format for the BCC terminal I/O port must be configured for 8 data bits, 1 stop

bit, no parity, and 9600 baud.

The terminal then displays this message:

CPU32Bug Debugger/Diagnostics - Version X.XX

CPU32Bug>

where:

X.XX is the software revision level

After initialization or return of control to the monitor, the terminal displays the prompt

"CPU32Bug>" and waits for a response. If an incorrect response is entered, the terminal displays

"Invalid command" followed by the prompt "CPU32Bug>".

CPU32Bug waits for a command line input from the user terminal. When a proper command is

entered, the operation continues in one of two basic modes. If the command causes execution of

a user program, the monitor may or may not be reentered, depending upon the desire of the user.

For the alternate case, the command is executed under the control of the monitor, and the system

returns to a waiting condition after the command is completed. During command execution,

additional user input may be required, depending on the command function.

The user can use any of the commands supported by the monitor. A standard input routine

controls the BCC operation while the user types a command line. Command processing begins

only after the command line has been terminated by pressing the keyboard carriage return <CR>

key.

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Motorola M68CPU32BUG Manuel d'utilisateur Page 33