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Texas Instruments TMS370 User Manual

Page 77

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Using the Master Mode Menu

3-27

3.15 Using the Master Mode Menu—the Master Command

The master command mode allows you to program and manipulate data with
a master device as the source of the data manipulation. This command brings
up a menu simliar to the display window command menu. All the commands,
except program, upload, and copy, work identically to the display window
commands; however, the operations are performed on the master device only.
The differences among the program, upload, and copy commands are de-
scribed below:

Program

The program command allows you to program a

blank master

device. You are prompted for address ranges, just as you are
with the display window program command. After programming
the ranges, the programmer programs the header information
into the first 256 bytes of the master device. The programmer
then calculates and programs the checksum into the last byte of
header information.

Upload

The upload command has two options—

data only or configura-

tion and data.

Data only allows you to load the data specified by the master
device header information but does not upload the header infor-
mation.

Configuration and data replaces the currently selected device
information with the header information from the master device
and also uploads the programmed data of the device. The de-
vice that was chosen in the configuration window is no longer
valid. Before you return to the configuration window, you will be
prompted to see if you would like to add the new configuration
that was uploaded to the device table.

Copy

The copy command copies the defined ranges from the master
EPROM to all 16 devices. The necessary data should have been
previously programmed in the master device using the program
command in to the master menu. Because the copy is done in
firmware without software intervention, no message showing
the address being programmed is seen on the PC screen.