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More IO
I have an old home built 486 that I want to bring down from the attic to use to control a robot project.
The existing single parallel port is a bit limited, can I add more IO cards to get more ports, or is there a card I can get that provides an array of parallel ports ???
The existing single parallel port is a bit limited, can I add more IO cards to get more ports, or is there a card I can get that provides an array of parallel ports ???
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No problem with adding more parallel port. Even old BIOS's usually have support for three LPT ports. FYI standard I/O addresses & interrupts settings for parallel us:
LPT1 = 3BC-3BFh IRQ7
LPT2 = 378-37Ah IRQ5
LPT3 = 278h-27Ah IRQ5
To configure parallel ports in ISA/PCI bus systems, you usually use the BIOS setup program for ports built into the motherboard or maybe set jumpers or switches for adapter-based ports. Each board on the market is different so you will need to consult the manual for specific card installs.
Finally, MS-DOS and Windows 9x & 2000 now support up to 128 parallel ports.
Hope this helps & good luck!
LPT1 = 3BC-3BFh IRQ7
LPT2 = 378-37Ah IRQ5
LPT3 = 278h-27Ah IRQ5
To configure parallel ports in ISA/PCI bus systems, you usually use the BIOS setup program for ports built into the motherboard or maybe set jumpers or switches for adapter-based ports. Each board on the market is different so you will need to consult the manual for specific card installs.
Finally, MS-DOS and Windows 9x & 2000 now support up to 128 parallel ports.
Hope this helps & good luck!
LPT1 = 3BC-3BFh IRQ7
LPT2 = 378-37Ah IRQ5
LPT3 = 278h-27Ah IRQ5
To configure parallel ports in ISA/PCI bus systems, you usually use the BIOS setup program for ports built into the motherboard or maybe set jumpers or switches for adapter-based ports. Each board on the market is different so you will need to consult the manual for specific card installs.
Finally, MS-DOS and Windows 9x & 2000 now support up to 128 parallel ports.
Hope this helps & good luck!