DS87000 Datasheet, PDF (3/10 Pages) Dallas Semiconductor – Microcontroller Programmer

DS87000
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.
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