Checking the check box
Erase buffer before loading
tells the program to erase all buffer
data using entered Erase value. Buffer erase is performed immediately before reading file
content to buffer and it is functional for binary and all HEX file formats. Using this one-shot
setting disables current setting of
Erase buffer before loading
option in menu
Options /
General options
at tab
Hex file options
.
If the checkbox
Swap bytes
is displayed, the user can activate function of swapping bytes
within 16bit words (or 2-byte words) during reading of file. This feature is useful especially
when loading files with Motorola representation of byte order in file (big endian). Standard
load file is using little endian byte order.
Note: Big-endian and little-endian are terms that describe the order in which a sequence of
bytes are stored in computer memory. Big-endian is an order in which the "big end" (most
significant value in the sequence) is stored first (at the lowest storage address). Little-endian
is an order in which the "little end" (least significant value in the sequence) is stored first. For
example, in a big-endian computer, the two bytes required for the hexadecimal number 4F52
would be stored as 4F52H in storage address 1000H as: 4FH is stored at storage address
1000H, and 52H will be at address 1001H. In a little-endian system, it would be stored as
524FH (52H at address 1000H, and 4FH at address 1001H).
Number 4F52H is stored in memory:
Address
Big endian system
Little endian system
1000H 4FH
52H
1001H 52H
4FH
The reserved key
<F3>
will bring out this menu from any menu and any time.
List of file format codes and error codes
There can occur some errors during file download in some of supported formats. The error is
written to LOG window in face "Warning: error #xxy in line rrr", xx is file format code, y is error
code and rrr is line number in decimal.
File format codes:
#00y - binary
#10y - ASCII Space
#20y - Tektronix
#30y - Extended Tektronix
#40y - Motorola
#50y - MOS Technology
#60y - Intel HEX
Load file error codes:
#xx1 - bad first character - header
#xx2 - bad character in current line
#xx3 - bad CRC
#xx4 - bad read address
#xx5 - bad length of current line
#xx6 - too big negative offset
#xx7 - address is out of buffer range
#xx8 - bad type of selected file format
#xx9 - the file wasn't loaded all
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Summary of Contents for 844USB
Page 7: ...Introduction 7 ...
Page 12: ...Quick Start 12 ...
Page 15: ...Detailed description 15 ...
Page 16: ...859 16 ...
Page 28: ...866B 28 ...
Page 41: ...844USB 41 ...
Page 50: ...848A 50 ...
Page 56: ...Setup 56 ...
Page 67: ...Pg4uw 67 ...
Page 117: ...Pg4uwMC 117 ...
Page 127: ...Common notes 127 ...
Page 134: ...Troubleshooting and warranty 134 ...