ENGLISH:
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DOS OS operation any serial port (INT 14H) and parallel (INT 17H) by BIOS service commonly,
BUT DOS OS can only support 4 serial port (3F8h, 2F8h, 3E8h, 2E8h) and 3 parallel port
(3BCh/378h/278h).
I. File explain:
1.CH35SDOS.EXE -- The tool of install the driver support 1S card for DOS
2.ReadMe.txt -- The document to explain how to install the driver
II. Option:
-a -- Add port of CH35X
-r -- The por of CH35X remapped to legacy port of DOS OS
-d -- Delete the add port of CH35X
-s -- Hidden install, show no install information
-h -- Clue on install option
III. Install approach:
1. -- Copy the CH35SDOS to DOS OS.
2. -- Input "CH35SDOS" to check the device.
-- If the card has found, it will display:
Find CH352 1 Serial Card
Serial Port1 at 9000 (IRQ9)
3. -- Input "CH35SDOS -a", then press "Enter", install the port of CH35SDOS to DOS OS,
it will display:
===========================
COM1 exists at 3FB
===========================
4. -- Input "CH35SDOS -a -r", then press "Enter", install the port of CH35SDOS to legacy
port of DOS OS, it will display:
===========================
COM1 exists at 3FB
===========================
5. -- If you want install the driver at Reboot every time, please add this line into AUTOEXEC.BAT:
CH35SDOS -a -s ( or CH35SDOS -a -r -s)