J1 is a JTAG port designed for this purpose. Users simply connect the UltraISR or C3ISR programming cable between J1 and the PC, load the JEDEC file, and program the device (see Listing 2).

I have recently learned a little bit of Visual Basic. I came up with an idea just a few minutes ago about a circuit that i could build that plugs into the parallel port that would control the ...

So I'm trying to detect through Visual Basic 6.0 when a voltage change occurs on one of the pins of the serial/parallel port. The whole thing is pretty simple; no data transfer/handshaking/etc ...

Because the PC parallel port in standard parallel port (SPP) mode is a real bidirectional port, you can use it to emulate the peripheral processor.

Such an offering is [Serdef]’s Tiny Parallel Port General MIDI Synthesizer for DOS PCs, a very professionally produced synth that you might have paid a lot of money to own three decades ago.

The Advantages of USB Ports Over Parallel Ports. First introduced in 1970, parallel ports were originally designed to connect business computers to printers. With their inclusion on the IBM PC in ...