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PG4UW
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Automatic negative offset option is not available for some kinds of special devices, that
require HEX files with exactly specified blocks used for the devices - for example Microchip
PICmicro devices. For these special devices, there are available only manual offset settings
(None, Positive offset, Negative offset)
.
Example for negative offset using:
A file contains data by Motorola S - format.
A data block started at address FFFF0H.
It is a S2 format with length of address array of 3 bytes.
For all data reading you can set Negative offset option and value of negative offset to FFFF0H.
It means that the offset will be subtracted from current real addresses and so data will be
written from buffer address 0.
List of file format codes and error codes
There are some errors can occur 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
File / Save
This command saves data in the buffer which has been created, modified or read from a
device onto a specified disk. The file format of saved file can be chosen from supported
formats list box. There can be also entered the Buffer start and Buffer end addresses which
exactly specify part of buffer to save to file. Supported file formats now are
binary ,
MOTOROLA , MOS Technology , Tektronix , Intel (extended) HEX , ASCII space , JEDEC
and POF .
If the checkbox Swap bytes is displayed, the user can activate function of swapping bytes
within 16bit words (or 2-byte words) during writing to file. This feature is useful especially when
saving files with Motorola representation of byte order in file (big endian). Standard save file
operation is using little endian byte order.