Technical data

Utility Software for MS-DOS
88 VIPA GmbH CP486 ⋅ 00/14
5.1.3 Silicon Disk Generator
With the program SDGEN binary files for the EPROMs, FLASH-PROMS and PEROMS of the
program storage are generated. The program is called in the following way:
[c:][path] SDGEN
The program requires the following parameters:
EPROM size in bit(0,512,1M,2M,4M,8M):
The size of the EPROMs is to be specified (e.g. 1M for
EPROM 27C010). Files of the appropriate size will be generated for a
EPROM programming device. If a value of 0 is entered, one single file
will be created, in the way SDLOAD needs.
split (Y/N) Split files are required for 16 bit silicon disks. The silicon disk of the
CP486 has a width of 16 bit, the memory card has a width of 8Bit. In the
silicon disk with a width of 16 bit 2 EPROMS (odd and even byte) are
always parallel.
source drive created mother drive for the silicon disk
target file name file name for the binary files for EPROM programming
Corresponding to the EPROM size several binary files are generated with the specified target file
name. The extension of single files is provided with a subsequent number (target file name.xxx). In
the case of splitted files, ODD- and EVEN files are marked by an O or an E in the first character of
the extension (target file name.Oxx or target file name.Exx).
Attention:
If a bootable silicon disk is to be generated by means of MS-DOS-Ramdisk RAMDRIVE.SYS, first
the label must be removed from this RAM-disk by means of the system program LABEL.
Accordingly, the operating system files (IO.SYS, MSDOS.SYS and COMMAND.COM) must be
copied to the empty RAM-disk before the other files of the user. Then SDGEN must be applied. If
the data are to be transmitted via SDLOAD, a large file has to be generated with SDGEN which is
loaded then with SDLOAD. Direct transfer of the MS-DOS-Ramdisk with SDLOAD does not
function in this case. The temporary file is always required!