Texas Instruments 990 User Manual page 137

Appl icati ons Uti 1 i ti es
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Download start and complete messages are wri tten to the
system log at the beginning and end of the download
process.
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If the downloader is aborted (due to an error from whi ch
recovery is not p::>ssi ble), an abort message is wri tten
to the syst em log.
5.3.2
Downloader U til i ty EXecuti on
This paragraph contains instructions for the activation and
termination of the downloader utility,as follows:
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Downloader acti va ti on • D ownl oadi ng can be acti va ted in
ei ther of two ways:
When a secondary station transmits a request to be
downloaded by the pr im ar y stat ion
When the user has completed the process of
identifying the secondary station and download
file via the prompts displayed on the screen
Downloader operation. The download tas k transf ers an
obj ect file via the communications line to a secondary
station. It uses the secondary ID or alias and option
nunbers to wild the filename, assign a logical uni t
nunber (LtNO) ,and open the file. The task then sends a
download command to the selected secondary station to
set it to the download state, (that is, ready to receive
a transmission from the primary station). The file is
then transmitted to the secondary station. When the
download operation is complete, the download task closes
the file, releases the LUNO, and removes the secondary
f rom the download que ue •
As many as 32 secondaries can be downloaded simultaneously.
5. 3. 3 Downloader Prom pt sand Res pons es
The downloader utility presents only two prompts when the SCI
command DOWNLOAD is entered, as follows:
[] DOWNLOAD
DOWNLOAD SECDNDARY
SECDNDARY 10 OR AL IAS: (nnnn) or (al ias)
OPTICN NUMBER: (m)
2270526-9701 5-15