topic Re: Clear EnetTx buffer in FRDM-K64F board in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Clear-EnetTx-buffer-in-FRDM-K64F-board/m-p/643011#M38984 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>This flag is set as long as last packet is not sent (or ACKed on a TCP transmission). Stack (in your case, lwIP) should handle the logic to change TxPointers once these message are sent.</P><P></P><P>In other words, you should not clear this flag manually until lwIP defines if previous packet was sent correctly</P><P></P><P>What application are you using? Did you try to use a sniffer to check if data is sent/receive correctly?</P><P></P><P>Regards,</P><P>Isaac</P></BODY></HTML> Thu, 20 Oct 2016 20:51:52 GMT isaacavila 2016-10-20T20:51:52Z Clear EnetTx buffer in FRDM-K64F board https://community.nxp.com/t5/Kinetis-Microcontrollers/Clear-EnetTx-buffer-in-FRDM-K64F-board/m-p/643010#M38983 <HTML><HEAD></HEAD><BODY><P>Hello everybody! <BR /><SPAN class="" lang="en"><SPAN>Sometimes</SPAN> <SPAN>when working</SPAN> <SPAN>with the FRDM-K64F board</SPAN><SPAN>,</SPAN> <SPAN>there is a situation</SPAN> <SPAN>when</SPAN> <SPAN>the transmit buffer</SPAN> <SPAN>may</SPAN> <SPAN>not</SPAN> <SPAN class="">be cleared "ENET_DRV_CleanupTxBuffDescrip(enetIfPtr);"</SPAN><SPAN class="">.<BR /></SPAN></SPAN></P><P><SPAN class="" lang="en"><SPAN class=""></SPAN></SPAN></P><P><SPAN class="" lang="en"><SPAN class="">Flag enetIfPtr-&gt;bdContext.isTxBdFull&nbsp; <SPAN>is always set</SPAN>.<BR /><SPAN>How do I fix</SPAN> this error?<BR />Thanks.<BR /><BR />PS: Sorry form my English.<BR /><BR /></SPAN></SPAN></P><P><SPAN class="" lang="en"><SPAN class=""></SPAN></SPAN></P></BODY></HTML> Tue, 18 Oct 2016 06:26:55 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Clear-EnetTx-buffer-in-FRDM-K64F-board/m-p/643010#M38983 maksim_lipskiy 2016-10-18T06:26:55Z Re: Clear EnetTx buffer in FRDM-K64F board https://community.nxp.com/t5/Kinetis-Microcontrollers/Clear-EnetTx-buffer-in-FRDM-K64F-board/m-p/643011#M38984 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>This flag is set as long as last packet is not sent (or ACKed on a TCP transmission). Stack (in your case, lwIP) should handle the logic to change TxPointers once these message are sent.</P><P></P><P>In other words, you should not clear this flag manually until lwIP defines if previous packet was sent correctly</P><P></P><P>What application are you using? Did you try to use a sniffer to check if data is sent/receive correctly?</P><P></P><P>Regards,</P><P>Isaac</P></BODY></HTML> Thu, 20 Oct 2016 20:51:52 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Clear-EnetTx-buffer-in-FRDM-K64F-board/m-p/643011#M38984 isaacavila 2016-10-20T20:51:52Z