Argo seriako

[Alexios Chouchoulas]

On Wed, 17 Nov 1999, Kekes Stamatis wrote:

> E oxi kai winpc
> 
> > Den einai ligo trabigmeno na min exei uart ? Kai pos stelnei dedomena
> > seiriaka ? Thiladi ti einai winpc ? ;))))
> 
> Apla mporei na einai kana ksexasmeno 486 me apli seiriaki pou oti modem kai na
> exeis epikoinonei me taxytites <= 9.600

  Akoma kai to Intel 8250 kai ta metepeita cloned 16450 einai UARTs
(Universal Asynchronous Received/Transmitter [1]). Esy ennoouses oti den
exei 16550A (h kalytero) UART, to allo paidi ekane plaka epeidh eipes oti h
seiriakh den exei katholou UART. :-)

  Xm, epishs to 8250 nai men einai *recommended* gia 9600 kai katw (kyriws
epeidh eydokimei se kati IBM XT), alla mporei na shkwsei arketa megalyteres
taxythtes, mexri kai 19200. To 16450 trabaei (epishmws) mexri 38400, alla to
exw dei na anebainei sta 115200 (an kai yphrxan peristasiaka lathi sthn
epikoinwnia [2]). Me 16550A kai panw den mporeis na kseperaseis ta 115200
epeidh to oloklhrwmeno den to epitrepei (to bit rate sto hardware
kanonizetai me diairetikh methodo, 115200/N, opou N akeraios >=1).

[1] Xm, de bazw kai to kefali sto koutsouro gia thn akribh shmasia (paei
    kairos pou exw na to dw), alla einai kati tetoio.

[2] To kalwdio htan makry, xwris handshaking shmata kai athwrakisto. Ti
    perimeneis; :-)

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