topic Is safe lpc11u24 WriteEP simultaniously? in LPC Microcontrollers

topic Is safe lpc11u24 WriteEP simultaniously? in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Is-safe-lpc11u24-WriteEP-simultaniously/m-p/888878#M35620 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I</P><P>I read UM10462 but not found answer.</P><P></P><P>case1</P><P>Is safe lpc11u24 WriteEP simultaniously into different endpoint ?</P><P></P><P>{</P><P>uint8_t tmpTxBuf[64];</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 84, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 83, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 81, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 80, tmpTxBuf, 64);</P><P>}</P><P></P><P></P><P>case2</P><P>Is safe lpc11u24 WriteEP simultaniously?</P><P>I think it not safe, because buffer can bee corrupted. Is it true?</P><P>Is occur error interrupt?</P><P>{</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>}</P><P></P><P>Maybe exist detailed  information (application notes) about using USB hardware block?</P><P></P><P>BR.</P><P>Darius Babrauskas</P></BODY></HTML> Mon, 21 Jan 2019 11:27:53 GMT darius_b 2019-01-21T11:27:53Z Is safe lpc11u24 WriteEP simultaniously? https://community.nxp.com/t5/LPC-Microcontrollers/Is-safe-lpc11u24-WriteEP-simultaniously/m-p/888878#M35620 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I</P><P>I read UM10462 but not found answer.</P><P></P><P>case1</P><P>Is safe lpc11u24 WriteEP simultaniously into different endpoint ?</P><P></P><P>{</P><P>uint8_t tmpTxBuf[64];</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 84, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 83, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 81, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 80, tmpTxBuf, 64);</P><P>}</P><P></P><P></P><P>case2</P><P>Is safe lpc11u24 WriteEP simultaniously?</P><P>I think it not safe, because buffer can bee corrupted. Is it true?</P><P>Is occur error interrupt?</P><P>{</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>pUsbApi->hw->WriteEP(pUsbHandle, 82, tmpTxBuf, 64);</P><P>}</P><P></P><P>Maybe exist detailed  information (application notes) about using USB hardware block?</P><P></P><P>BR.</P><P>Darius Babrauskas</P></BODY></HTML> Mon, 21 Jan 2019 11:27:53 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Is-safe-lpc11u24-WriteEP-simultaniously/m-p/888878#M35620 darius_b 2019-01-21T11:27:53Z Re: Is safe lpc11u24 WriteEP simultaniously? https://community.nxp.com/t5/LPC-Microcontrollers/Is-safe-lpc11u24-WriteEP-simultaniously/m-p/888879#M35621 <HTML><HEAD></HEAD><BODY><P>Hi <A _jive_internal="true" class="" data-content-finding="Community" data-userid="332384" data-username="darius.b@8devices.com" href="https://community.nxp.com/people/darius.b@8devices.com">Darius Babrauskas</A></P><P>Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.<BR />In my opinion, neither of these two ways are properly. You can learn how to call the USB ROM API appropriately by referring to USB ROM demo.<BR />Have a great day,<BR />TIC</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 22 Jan 2019 02:46:10 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Is-safe-lpc11u24-WriteEP-simultaniously/m-p/888879#M35621 jeremyzhou 2019-01-22T02:46:10Z