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</o:shapelayout></xml><![endif]--></head><body lang=CS link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>Nevím, co na tom je k nepochopení. Například první v pořadí MCP7940M nemá vstup na zálohování baterií, má pouze vstup na hlavní napájení. DS1302 má oddělené piny a záložní baterii umí v případě hlavního napájení nabíjet.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>DS1302 neumí přerušovat po nastaveném čase. MCP7940 má MFP pin, kterému lze přiřadit CLKOUT….takže bych je potřeboval spárovat.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>Předpokládám, že něco bude existovat, proto odpověď „bude jich hromada“ je fajn, ale čekal jsem něco konkrétního, že někdo něco používá. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>Jdu se tedy prohrabat datasheety.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>RK<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:CS'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:CS'> Hw-list [mailto:hw-list-bounces@list.hw.cz] <b>On Behalf Of </b>Tomas Urbanek<br><b>Sent:</b> Saturday, January 5, 2019 1:09 PM<br><b>To:</b> HW-news<br><b>Subject:</b> Re: RTCC obvod<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Moc to nechapu??? Vsechny rtc ic maji zalohovani baterii/scap. S periodickym nebo event vystupem preruseni je jich taky hromada. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>T <o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>5. 1. 2019 v 12:35, Radek Koutský <<a href="mailto:radek.koutsky@gmail.com">radek.koutsky@gmail.com</a>>:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>Zdravím,</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>hledání nějaký obvod RTCC, který by měl vlastnosti:</span><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:"Verdana","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Verdana","sans-serif";color:black'>Jednoduchá sběrnice I2C, SPI</span><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:"Verdana","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Verdana","sans-serif";color:black'>Provoz na záložní baterii</span><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:"Verdana","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Verdana","sans-serif";color:black'>nabíjení záložní baterie</span><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:"Verdana","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Verdana","sans-serif";color:black'>SMD provedení</span><o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:"Verdana","sans-serif"'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Verdana","sans-serif";color:black'>nejlépe 8pin (SOIC, TSSOP, …) ale to až taková podmínka být nemusí</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>v podstatě až sem to splňuje můj oblíbený DS1302.</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>Ale potřeboval bych ještě jednu funkci a to je volba přerušení do MCU. Stačilo by mi každou vteřinu, nebo jsou i různé, ale na tom netrvám. Nicméně toto už nesplňuje DS1302, u něj je potřeba si čas vždy vytáhnout. Koukal jsem zatím na nějaké obyčejné RTCC obvody a hromada z nich umí přerušení, ale zase třeba nemají provoz na baterii.</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>Než se zabořím do hledání, neměl by někdo tip na vhodný RTCC obvod?</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Verdana","sans-serif";color:black'>Díky RK </span><o:p></o:p></p></div></blockquote><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:CS'>_______________________________________________<br>HW-list mailing list - sponsored by <a href="http://www.HW.cz">www.HW.cz</a><br><a href="mailto:Hw-list@list.hw.cz">Hw-list@list.hw.cz</a><br><a href="http://list.hw.cz/mailman/listinfo/hw-list">http://list.hw.cz/mailman/listinfo/hw-list</a><o:p></o:p></span></p></div></blockquote></div></body></html>