On Thu, 10 May 2007 15:55, you wrote: > On 10/05/07, Andrew Errington <[EMAIL PROTECTED]> wrote: > > Very much OT, but does anyone have any 8251 USART chips from the 80s? > > New or pulled would be fine I think. I'm looking for one, ideally two. > > What sort of obsolete equipment might these be found in?
Maybe *old* PCs, old non-PCs (Apples etc.), add-on serial interface boards, microprocessor experimenter kits, student projects. Anything (but not everything) with a serial interface and a microprocessor from the late 80s/early 90s. Sicom have them for about $20 each, but I'd hate to think of one sitting in someone's junk drawer needing to be given a new lease of life. Besides, for $20 it's worth rising to the challenge of emulating an 8251 with a $5 PIC (which would be fine because then I could lose the two support chips and XTAL oscillator for the 8251 too). It is entirely not Linux related... until the chips are found and installed into the target device, then I can try talking to it from a serial port on a Linux box. A
