<div dir="ltr">Jo, myslim, ze jste tu moji matlaninu poc;hopil tak jak jsem ji myslel. Diky za odpoved, pomohla.<div>Marek</div></div><br><div class="gmail_quote"><div dir="ltr">On Sun, May 20, 2018 at 7:34 PM Jaroslav Buchta <<a href="mailto:jaroslav.buchta@hascomp.cz">jaroslav.buchta@hascomp.cz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_-34259254467678523moz-cite-prefix">Nevim, jestli uplne chapu vas dotaz,
ale myslim, ze to obecne lze, pokud mate na mysli jednou treba
pouzivat verzi s poolingem, jednou IT a pak treba DMA. Ono se to
vzdycky kompletne nakonfiguruje, jen je potreba to prislusne
nastavit v CubeMX na maximalni variantu, tedy DMA.<br>
Taky HAL nemam rad ale asi neni jina cesta pro F7 a vyse, na
takove ty nekriticke aplikace to funguje a snadno se to pouzije.<br>
Co se tyce kombinace preruseni od periferie a od DMA, tak to asi
bude trosku HW zavisle ale IMHO to netreba resit, proste pouzit
API tak jak je to v prikladech a bude to nejak fungovat. V tom HAL
jsou ruzne FSM pro periferie a co jsem zatim potreboval zkoumat,
tak to vzdycky po dokonceni operace skonci v nejakem vychozim
stavu. Jen implementovat prislusne callback funkce pro indikaci
dokonceni prenosu.<br>
Ted jsem zprovoznoval QSPI a tam me stve jina vec, strasna rezije
pro jednotlive operace, kdyz kouknu osciloskopem na signaly tak je
to jako noty na buben. Zase ale operace E/W trvaji z principu
dlouho, tak to tolik nevadi ale narocnejsi cteni by uz bylo dost
zdrzovane. Vim, ze to lze namapovat do pametoveho prostoru a bude
po problemu, ale u ostatnich periferii to asi nebude lepsi.<br>
<br>
Dne 20.05.2018 v 18:00 Marek Sembol napsal(a):<br>
</div>
<blockquote type="cite">
<div dir="ltr">Zdravim,
<div>zacal jsem si hrat s STM32, pouzivam (minimalne zatim)
projekt vygenerovany STM32CubeMX, HAL drivery.</div>
<div><br>
</div>
<div>Otazku smeruji na I2C, ale predpokladam, ze to plati pro
vsechny periferie.</div>
<div>Hraji si s STM32F407, ale predpokladam, ze to plati pro
vsechny STM32Fxxx)</div>
<div><br>
</div>
<div>Zajimalo by mne, zda mohu kombinovat pooled/IRQ/DMA operace
pro jednu periferii (napr I2C1) V dokumentaci jsem nic
rozumneho nenasel (ale nerikam, ze to tam neni, mozna jen
neumim hledat) Rekneme, ze "naklikam" I2C kanal pro DMA
transfer. Pak mohu pouzit funkci HAL_I2C_Master_Transmit_DMA.
Mohu pouzit i "pouze IRQ" verzi
<span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">HAL_I2C_Master_Transmit_IT
pripadne poolovanou
<span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">HAL_I2C_Master_Transmit?</span></span></div>
<div><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br>
</span></span></div>
<div><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">A
druha vec: vcera jsem hodne casu stravil nez se mi
podarilo I2C DMA prenosy rozjet. Problem byl v tom, ze pri
nastaveni DMA
<span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">STM32CubeMX
vynuti irq pro DMA (a ten nejde ani vypnout), ne vsak
pro samotny I2C. Delam neco spatne a ty I2C preruseni
nemusim zapinat, nebo je to nedopatreni v
<span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">STM32CubeMX,
ze je taky nevynuti?</span></span></span></span></div>
<div><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br>
</span></span></span></span></div>
<div><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">predem
diky,</span></span></span></span></div>
<div><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Marek</span></span></span></span></div>
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