3980xpi Users Manual - Data I/O Corporation

Messages
Probable Cause Solution
Additional Information
An illegal bit error indicates that at least one location in the device contains data
(programmed state) while its corresponding location in RAM has no data
(unprogrammed state). For example, the unprogrammed state of a PROM is 0,
while its programmed state is 1.
If a particular 8-bit PROM's memory location contains 09 hex (00001001 binary),
and the corresponding memory location in RAM contains F0 hex (11110000
binary), then an illegal bit error occurs because the programmer is not able to
unprogram the first and fourth least significant bits.
I/O Timeout Error
Probable Cause Solution
Wrong download
command sent to host
Wrong I/O translation
format code selected
Unrecognized characters
in beginning of file
No recognizable end-offile
character or record in
file
Additional Information
Workaround: On your programmer's Device List, find the earliest
version of programmer software that supports the device, boot your
programmer with this version, and attempt the operation again. If the
operation is successful, you've found a temporary workaround.
Note: Contact Data I/O and report your findings.
Your host machine (PC-DOS, Sun, VAX, etc.) will transfer a file upon
receipt of the proper command. Under HiTerm, for example, the
Download Host Command must begin with tr or transfer followed by
the appropriate drive letter, path, and filename. Refer to your
programmer's User Manual, the HiTerm User Manual, or your host
machine's documentation for more information.
The format of the file being transferred must match the description in
the programmer's User Manual. If it doesn't, enter the proper I/O
translation format number and transfer the file again.
The data file must begin with characters that match the appropriate
format described in the programmer's User Manual. Remove any
characters in the data file that the programmer will not recognize. In
general, ensure that the format of the data file conforms to the
description in the Translation Formats chapter of your User Manual.
The data file must end with the proper end-of-file character or record,
as described in the programmer's User Manual under the I/O
translation format type selected. Add the end-of-file character or
record, if it is missing. Of course, this does not apply to binary files,
which have no end-of-file character or record.
This error occurs when a file is transferred from systems such as a PC, Sun, or VAS
over RS-232, or when transfer occurs via the programmer disk drive (using More/
Transfer/Input from disk). If Data sum = 00000000 is displayed, no data was
transferred. Other hex values indicate the file transferred partially or completely.
The I/O translation format parameter is selected in the download screen. I/O
translation formats are described in Chapter 7. To tell which format your data file
corresponds to, view the file with an ASCII editor (or hex editor for a binary file).
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