68K System Monitor

User's Guide

GE Energy Services

DL - Download

Platform

Description

Syntax

!

WARNING

þ CPM þ D20

þ D20 ME

þ D20/200

þ D20/200 ME

þ D25

D20 Base

D20 Base

CCU Base

CCU Base

 

Use this command to download data (typically configuration files (all platforms) or D25 and CCUME application (FLASH) code).

Note: When downloading application code files, this command must be used only when executing from the BootROM. This will be indicated by the D25A>, or the D20MEA> prompts for the D25 or D20ME-based systems, respectively.

The Monitor accepts S1, S2 and S3 data records, and S7, S8 and S9 end records, and optional S0 comment records in the downloaded file. The monitor rejects all other types of records.

Once the command verifies the checksum within the record, the contents of data records (S1, S2 or S3) are stored in memory. When it receives an S7, S8 or S9 end record, the DOWNLOAD command returns control to the Monitor’s command line.

Below is usage and syntax information for this command

Command Format

D25 / CCUME:

dl [/o offset]

 

CPM / D20 / CCU:

dl

 

 

 

Variables

offset

= the offset at which to download

 

 

 

Parameters

/o

= specifies that an offset follows

 

 

 

Example

Type dl and press ENTER.

 

 

Results: This prepares the monitor to receive Motorola S-

 

 

records over the serial port. The monitor does not

 

 

echo any further until it encounters an end record

 

 

(the prompt returns at this point) or a format or

 

 

record checksum error (this returns an error

 

 

message before returning the prompt).

 

 

Special

Each S-record, terminated by a carriage return or line feed,

Considerations

cannot exceed 80 decimal bytes in length.

 

Application code download works ONLY when:

 

• The BootROM code is being executed AND

 

• The FLASH region has been erased.

 

 

 

 

Executing this command modifies the memory of the system, and can cause operational disruption.

Use caution before proceeding.

General

SWM0023-1.00 -2

Full Release

3-27

 

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GE 68K System manual DL Download