https://community.nxp.com/t5/LPC-Microcontrollers/No-sound-from-codec-LINEOUT/m-p/1944676#M56757 <P>Im using LPC55s36 and example i2s_dma_transfer. I changed pins neccesary, yet i hear no sound out of LINEOUT. How i can fix it or i got faulty board?</P> Fri, 30 Aug 2024 18:53:45 GMT CzyzyK 2024-08-30T18:53:45Z https://community.nxp.com/t5/LPC-Microcontrollers/No-sound-from-codec-LINEOUT/m-p/1944676#M56757 <P>Im using LPC55s36 and example i2s_dma_transfer. I changed pins neccesary, yet i hear no sound out of LINEOUT. How i can fix it or i got faulty board?</P> Fri, 30 Aug 2024 18:53:45 GMT https://community.nxp.com/t5/LPC-Microcontrollers/No-sound-from-codec-LINEOUT/m-p/1944676#M56757 CzyzyK 2024-08-30T18:53:45Z https://community.nxp.com/t5/LPC-Microcontrollers/No-sound-from-codec-LINEOUT/m-p/1946796#M56777 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/237129">@CzyzyK</a>&nbsp;</P> <P>You can observe the output effect through an oscilloscope.</P> <P>According to the schematic, you can measure these three signals.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="HangZhang_0-1725418210792.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/296957i1809C2700B06297A/image-size/medium?v=v2&amp;px=400" role="button" title="HangZhang_0-1725418210792.png" alt="HangZhang_0-1725418210792.png" /></span></P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="HangZhang_1-1725418354977.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/296960i702678A10C7F45BC/image-size/medium?v=v2&amp;px=400" role="button" title="HangZhang_1-1725418354977.png" alt="HangZhang_1-1725418354977.png" /></span></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="HangZhang_2-1725418408573.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/296961i31E6E0B1CDBBF6C3/image-size/medium?v=v2&amp;px=400" role="button" title="HangZhang_2-1725418408573.png" alt="HangZhang_2-1725418408573.png" /></span></P> <P>The above is the result of my test, you can refer to it.</P> <P>BR</P> <P>Hang</P> Wed, 04 Sep 2024 02:54:07 GMT https://community.nxp.com/t5/LPC-Microcontrollers/No-sound-from-codec-LINEOUT/m-p/1946796#M56777 Harry_Zhang 2024-09-04T02:54:07Z