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Jestli jsem to pochopil spravne ja, tak jeden signal je reset co
resetuje mechaniku - ten je vyveden ze Sharpa z vyvodu reset. Dalsi
signal je z RSTB a ten "nuluje" dekoder signalu smerem z mechaniky
do radice. Posledni je ten signal co spousti motor a tim padem muze
mechanika se tocit a hlavicka se presunovat po mediu.<br>
<br>
Radek<br>
<br>
<div class="moz-cite-prefix">Dne 15.08.2019 v 11:39 Michal Hučík -
ORDOZ napsal(a):<br>
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cite="mid:2c590d1d-4c18-b89c-67c4-4ee04093a4d6@ordoz.com">
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<p><br>
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<p>A ten reset mechaniky se da udelat jen prostrednictvim vyp./za.
motoru, ze?</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Dne 13.8.2019 v 8:35 Radek Suk
napsal(a):<br>
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<blockquote type="cite"
cite="mid:6c5fdc67-33a6-caa2-0268-6028c8b39c62@radeksuk.cz">
Ahoj Michale <br>
<br>
Opravuji se ten RSTB nedela cely reset ale jen reset dekoderu.<br>
<br>
Radek <br>
<br>
<div class="moz-cite-prefix">Dne 12.08.2019 v 20:08 Radek Suk
napsal(a):<br>
</div>
<blockquote type="cite"
cite="mid:a5e33f6c-9a06-7a54-9c29-2e1eb0159265@radeksuk.cz">
Ahoj Michale<br>
<br>
To RTS dela /RESET citacu pro cteni a mechaniky. Ma to delat
to, ze pri log0 mechanika nechava hlavicku na zacatku media a
az potom co se to da do log1 se zacne hlavicka pohybovat.<br>
<br>
RXCA je opravdu signal hodin pro prijem znaku. Mel by jsi tam
videt frekvenci 101,562 kHz. Prijem funguje tak, ze RAW signal
z mechaniky se synchronizuje do casove domeny radice. Pak se
synchronizuje s vnitrnim generatorem frekvence co vychazi z
oscilatoru 6,5MHz. Pak to jde do dekoderu a z nej vychazeji
dva vodice. Jeden jsou ty hodiny RXCA a druhy jsou data na
RXDA.<br>
<br>
Radek<br>
<br>
<div class="moz-cite-prefix">Dne 12.08.2019 v 10:42 Michal
Hučík - ORDOZ napsal(a):<br>
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<blockquote type="cite"
cite="mid:0dda1bbe-82f0-6870-3c92-6615ff09f47d@ordoz.com">
<p>Ahoj,</p>
<p>potreboval bych se ujistit, zda dobre rozumim zapojeni
SIO v QD radici. Jde mi konkretne o kanal B, kterym se
pres DTR (zapis do CTRL 7. bit) spousti motor. Ovsem k
cemu tam slouzi signal RTS (zapis do CTRL 1. bit)? <br>
</p>
<p>Jde to do nejake logiky, ktera je pak pripojena na RXC
kanalu A. Podle datasheetu k SIO se jedna o Receiver
Clocks - predpokladam tedy, ze aktivaci RTSB se rozkmitaji
hodiny, ktere rikaji kanalu A casovani toho, jak ma
scanovat prijem dat z QD.</p>
<p>Pokud jsem to identifikoval spravne, tak by mne zajimalo
k cemu je to dobre? Myslim tim to samostatne ovladani toho
signalu RXCA. Nebylo by lepsi mit to ovladane rovnou s
motorem? <br>
</p>
<p>Predpokladam spise, ze mi neco unika...</p>
<p>Michal<br>
</p>
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