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- UART 1.2 tells COMx: hex i/o port, type of UART, and IRQ.
- usage: UART Com4:
- returns:
- COM4: is at hex port address: 02E8.
- AT style 16450 unbuffered UART.
- Port correctly configured to IRQ 3.
-
- Works on Com1: through Com4: It can discriminate XT style 8250,
- AT unbuffered 16450, AT buffered 16550AF, and PS/2 style Type 3
- DMA. It displays a message and sets the errorlevel.
-
- It can be fooled by OS/2 which virtualizes all chips to look
- like the old 8250. DESQview can prevent UART from accessing COM
- ports if you don't give permission in the PIF. Don't use UART
- on com ports that are actively being used by a mouse or modem.
- UART works by temporarily reprogramming the port and sending it
- a NUL character.
-
- UART will tell if the hex port address configured is correct and
- what it should be.
-
- Copyrighted by Roedy Green of Canadian Mind Products. May be
- distributed freely for non-military use only. OPTASM/MASM
- included. Version 1.2 now tells you if the IRQ is correctly
- configured, and provides more detailed information on use and
- troubleshooting.
-