DS87000

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Drive

This command allows the user to select another disk drive for the files used in the buffer menu’s load and

save commands.

Compare

This command compares the contents of the buffer with the contents of the selected file. Every byte

contained in the file is compared to the corresponding byte (same device address) in the buffer.

Fill

Fill the programmer's buffer with a specific value or a random number. When unsure of the buffer memory

contents, this command can be used to initialize the buffer to a known value. Also, by using the random

option to fill the buffer with random numbers before loading a program, the encryption function will provide

more security. The user is prompted to enter the beginning and ending address of the range to be filled. The

default range is displayed, and may be modified or accepted as is. The user is also prompted to enter a value

(in hex) to use for filling. Entering an “R” will cause a series of random numbers to be used.

Edit

This command provides full screen edit capability of the programmer's data buffer memory. The cursor keys

allow character by character movement within the buffer. In addition, page up, page down, home, end, and

their control key combinations allow movement in larger increments.

The information contained in the buffer memory is presented in hex format in the center of the screen, and

the ASCII representation on the right. If the hex value cannot be represented in printable ASCII, a period (.)

is displayed. The cursor may be placed over either the hex or ASCII value and a new value entered. When

exiting the edit function after modifying one or more bytes of the buffer, the user will be asked if the changes

should be saved.

Encryption Menu

Load

Load an encryption vector from a PC file to the programmer. The PC file is a standard ASCII file

representing hex values, and may be created using any ASCII text editor. The file must include exactly 64

hex values (separated by spaces), which will be read and stored sequentially. During a load, if the file does

not contain exactly 64 hex values, the programmer’s encryption vector will not be modified, and an error

message will be displayed. Note that this command simply loads an encryption vector into the programmer. It

is the Write Encryption Vector command of the Device menu that actually stores the vector into the device.

Save

Save the current encryption vector contained in the programmer to a PC file. This information is stored as

standard ASCII representing 64 hex values.

Drive

This command allows the user to select another disk drive for the files used in the encryption menu’s load

and save commands.