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<p>Zdravim,<br>
ve visual studiu toto funguje pomoci union jak tu psal p. Mraz. <br>
</p>
<p>Milan<br>
</p>
<div class="moz-cite-prefix">Dne 16.5.2017 v 08:00 Zuffa Jan
napsal(a):<br>
</div>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">divne, skusil som vo visual studiu a tam to bez
explicitneho pretypovania
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">na int skoci na chybe illegal, left operand has
type 'double<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Arial Unicode
MS","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Arial Unicode
MS","sans-serif"">j.</span><span
style="font-size:11.0pt;font-family:"Arial Unicode
MS","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Hw-list [<a class="moz-txt-link-freetext" href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Miroslav Draxal<br>
<b>Sent:</b> Monday, May 15, 2017 9:26 PM<br>
<b>To:</b> 'HW-news'<br>
<b>Subject:</b> RE: C xc8 rozkald double na byty<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">Mohu potvrdit, že XC8 ver 1.38
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">#define CelkovyVykon_kWh_rokDb_EEPROM 596.250<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">__EEPROM_DATA(0, // byt0 CelkovyVykon_kWh_denDb<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"> 0, // byt1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"> 0, // byt3<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"> 0, // byt4 CelkovyVykon_kWh_denDb -
4bytová přesnost<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"> CelkovyVykon_kWh_rokDb_EEPROM &
0xff, // byt0 CelkovyVykon_kWh_rokDb<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"> (CelkovyVykon_kWh_rokDb_EEPROM
>> 8) &0xff, // byt2
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"> (CelkovyVykon_kWh_rokDb_EEPROM
>> 16) &0xff, // byt3
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"> (CelkovyVykon_kWh_rokDb_EEPROM
>> 24) &0xff); // byt4 CelkovyVykon_kWh_rokDb
4bytová přesnost<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">To uloží správně do eeprom jako 596.25<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">Nic se násobit nemusí.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">Míra<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="CS">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="CS"> Hw-list [<a moz-do-not-send="true"
href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Zuffa Jan<br>
<b>Sent:</b> Monday, May 15, 2017 11:08 AM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> RE: C xc8 rozkald double na byty<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Zdravim,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">nezabudnite
pred ulozenim vynasobit 10 lebo inak pridete<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">o
cast za desatinnou ciarkou :) neskusal som ale typujem ze
kompilator<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">to
interne pretypuje na int.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">j.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Hw-list [<a moz-do-not-send="true"
href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Miroslav Draxal<br>
<b>Sent:</b> Friday, May 12, 2017 5:45 PM<br>
<b>To:</b> 'HW-news'<br>
<b>Subject:</b> RE: C xc8 rozkald double na byty<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">Teď jsem se dostal k PC, tohle funguje . Díky za
nakopnutí panu Zuffovi.
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">Velice pomohlo.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">Je to v podstatě jednoduchý, nějak mě tohle
nenapadlo.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">Míra
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="CS">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="CS"> Hw-list [<a moz-do-not-send="true"
href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Zuffa Jan<br>
<b>Sent:</b> Friday, May 12, 2017 1:05 PM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> RE: C xc8 rozkald double na byty<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">Zdravim,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">skuste takto:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">#define _NR 560.0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">double x = _NR;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">#define byt1 _NR & 0xff<br>
#define byt2 (_NR >> 8) &0xff<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS">#define byt3 (_NR >> 16) &0xff<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">...<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">j<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Hw-list [<a moz-do-not-send="true"
href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Miroslav Draxal<br>
<b>Sent:</b> Friday, May 12, 2017 12:18 PM<br>
<b>To:</b> 'HW-news'<br>
<b>Subject:</b> RE: C xc8 rozkald double na byty<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">Dá se nastavit přesnost 3 (dokonce) nebo 4 byty
v XC8 linker/Memory model
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">Potřebuju to dostat do define, protože to pak
ukládám do eeprom v době vývoje.</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="CS"><br>
<br>
#define byt1 0x44<br>
#define byt2 0x0C<br>
#define byt3 0x00<br>
#define byt4 0x00 // což je prezentace 0x440C0000 což
je 560.0<span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS">__EEPROM_DATA(byt1, byt2, byt3, byt4, 0, 0,0, 0);<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="CS"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="CS">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""
lang="CS"> Hw-list [<a moz-do-not-send="true"
href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Tomáš Hamouz<br>
<b>Sent:</b> Friday, May 12, 2017 12:09 PM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> Re: C xc8 rozkald double na byty<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.0pt;font-family:"Courier New""
lang="CS">Možná se znemožním, ale opravdu má double v xc8
jen 4 byty?<br>
<br>
Šlo by to udělat tak že si konstantu definujete opravdu jako
konstantní proměnnou.<br>
<br>
const double x = 560.0;<br>
<br>
uint8_t byte0 = ((uint8_t*)&x)[0];<br>
uint8_t byte1 = ((uint8_t*)&x)[1];<br>
<br>
a tak dál<br>
<br>
Tomáš</span><span lang="CS"><o:p></o:p></span></p>
<table class="MsoNormalTable" cellpadding="0" cellspacing="3"
border="0">
<tbody>
<tr>
<td style="width:1.2pt;background:blue;padding:.75pt .75pt
.75pt .75pt" width="2">
<br>
</td>
<td style="width:690.6pt;padding:.75pt .75pt .75pt .75pt"
width="921">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Dobrý
den,<br>
Jde nějak v C ve zdrojáku rozložit číslo ve tvaru
double na 4 byty?<br>
<br>
Potřeboval bych tvar<br>
<br>
Double x = 560.0;<br>
<br>
Rozložit do tvaru<br>
<br>
#define byt1 0x44<br>
#define byt2 0x0C<br>
#define byt3 0x00<br>
#define byt4 0x00 // což je prezentace
0x440C0000 což je 560.0<br>
<br>
560.0 je konstanta, která se mění při každém
programování zařízení a pokaždé to musím
přepočítávat do byt1 ~ byt 4. Nějakou automatizaci
bych potřeboval, protože těch konstant je vícero.<br>
Díky za nápady. Míra</span><o:p></o:p></p>
</td>
</tr>
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</table>
<p class="MsoNormal"><span lang="CS"><o:p> </o:p></span></p>
</div>
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