Texas Instruments 990 User Manual page 124

Applications Utili ti es
5.2 DomLOAD PREProCESSOR UTILITY
The download preprocessor utili ty converts a standard DXIO obj ect
file into a downloadable memory image for a specified secondary
station. This binary formatted image is stored in a download
directory. A maximum of eight file entries (called options) can
be maintained for each' secondary. These files may contain
operating systems or stand-alone programs (such as di agnostics)
for downloadi ng to that station.
The download preprocessor utility performs the following:
*
Alias functions, including:
Assignment of an alias, that is, assignment of an
alternate name, to a secondary station.
Deletion of an alias previously assigned
Modi fi cation of an al i as previously assigned
*
Preprocessed file functions, i ncl udi ng:
F il e cr eat ion
File deletion
File oontents dumping
File patching or modification
*
Download file listing functions, including:
Listi ng by st ati on identi ty num her
Listi ng by stati on al i as es
Listing of optional download files by station
The relocation value of the binary object file
The size of each record in each file assigned
The utility supports a variable length record in order to provide
downloadable mOdules sui table for a wide range of secondary
station requi rements. A s}?eci
al
DXIO HDLC Canmunications ROM
Loader must
be
installed in Model 990/5 Canputers to accept
preprocessed obj ect records. This ROM Loader interfaces to a
local-line module (LLM) board to load preprocessed data into
990/5 complter memory. The LLM must
be
at CRU address >20. Each
preprocess ed record is formatted as follows:
5-2 2270526-9701