Jumper - bylo - Problem so spojenim HD na SCSI a IDE

[Petr Krc]

> Petr Krc wrote:
> > Cable Select (jak uz nazev napovida) funguje trosku jinak - pomoci
> > preruseneho vodice v kabelu. K jednomu IDE konektoru na kabelu vedou
> > vsechny vodice (MASTER), ale u druheho je jeden vodic prerusen (SLAVE).
> > V praxi se to provadi prostrizenim vodice v plochem kabelu mezi konektory.
> > Tusim je to vodic c.28.

Boris Wolfgang Dobak wrote:
>  Mohli by ste to s tym prerusenim vodica vysvetlit
> trochu podrobnejsie? Este som sa totiz nestretol s tym,
> ze by bol rozdiel, na ktory konektor na ksande pripojim
> HD, alebo CD, vzdy zalezalo na jumprovani, teda ktory
> device bol master a ktory slave.

V 'beznych' noname PC se to nepouziva (alespon jsem to taky nikdy
nevidel). V nekterych znackovych strojich (treba HP Vectra) byva(l)
IDE kabel s prostrizenou dirkou mezi konektory a disky nastavene
na Cable Select. Ktery z nich bude Master ci Slave pak zalezi na tom,
ke kteremu konektoru je pripojen.

Citace z T13 Working Draft rev.1c:
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Special cabling may be used to selectively ground CSEL. CSEL of
Device 0 is connected to the CSEL conductor in the cable, and is
grounded, thus allowing the device to recognize itself as Device 0.
CSEL of Device 1 is not connected to CSEL because the conductor is
removed, thus the device recognizes itself as Device 1.
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-- 
Regards
           Petr Krc