10 bus analyzer, 1 introduction to the bus analyzer, Bus analyzer – Freescale Semiconductor Target Interface MMDS0508 User Manual

Page 37: Introduction to the bus analyzer, 10 bus analyzer, 1 introduction to the bus analyzer

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MMDS Target Comp onent

4.10 Bus Analyzer

4–37

MMDS0508 Target Interface

For a PC: Any valid communication device (COM1,COM2,etc.).

Example:COMDEV=COM2

For SUN:Any valid communication device (/dev/ttya, etc.).

Example:comdev=/dev/ttyb

4.9.1.2 BAUDRATE

This parameter specifies the communication baud rate between the host computer and
the target system. The debugger default is 9600 baud, but you may set any of these
baud rates:

1200, 2400, 4800, 9600, 19200, 28800,

38400, 57600, 115200.

Example:BAUDRAUTE=19200

4.9.1.3 SHOWPROT

This parameter specifies whether to report commands and responses in the command
line window. To have the system report the commands and responses, give this
parameter the value 1. To have the system not do this reporting, give this parameter
the value 0. (Another way to specify reporting is checking the Show Protocol
checkbox of the Communication Device Specification dialog box.)

Please see the section Communication Configuration, Communication Device
Specification.

4.10 Bus Analyzer

4.10.1 Introduction to the Bus Analyzer

Except for emulating the target-system MCU, the most important feature that a
microcontroller development tool can offer is analyzing program execution activities
on the target MCU bus. This analysis lets you determine what is occurring in a system,
without actually affecting the system.

NOTE

The MMDS0508 bus analyzer shows the logical state of the MCU
bus. It does not show signal hold or setup times.

Freescale Semiconductor, Inc.

For More Information: www.freescale.com

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