topic Re: Is it possible to use DMA for both I2C0 and I2C3 simultaneosly on Kinetis MK66? in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Is-it-possible-to-use-DMA-for-both-I2C0-and-I2C3-simultaneosly/m-p/818347#M49550 <HTML><HEAD></HEAD><BODY><P>Hi mikebez&nbsp;</P><P></P><P>If you are using I2C0 and I2C3 with DMA enabled, it could cause unpredictable behavior, because if a DMA request is triggered, you would not be able to know the true source of the DMA request (module 0 or 3). So, I wouldn't recommend enabling DMA support in both I2C modules.</P><P></P><P>Best regards</P><P>Jorge Alcala</P></BODY></HTML> Sat, 01 Dec 2018 00:00:06 GMT jorge_a_vazquez 2018-12-01T00:00:06Z Is it possible to use DMA for both I2C0 and I2C3 simultaneosly on Kinetis MK66? https://community.nxp.com/t5/Kinetis-Microcontrollers/Is-it-possible-to-use-DMA-for-both-I2C0-and-I2C3-simultaneosly/m-p/818346#M49549 <HTML><HEAD></HEAD><BODY><P>Hi :smileyhappy:</P><P></P><P>Screenshot from the Reference Manual (<SPAN class="">K66P144M180SF5RMV2</SPAN>, <SPAN class="">Rev. 3, 04/2017</SPAN>, page 474):</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/78562i9BF7D0753EDC17EB/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P></BODY></HTML> Thu, 29 Nov 2018 12:52:33 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Is-it-possible-to-use-DMA-for-both-I2C0-and-I2C3-simultaneosly/m-p/818346#M49549 mikebez 2018-11-29T12:52:33Z Re: Is it possible to use DMA for both I2C0 and I2C3 simultaneosly on Kinetis MK66? https://community.nxp.com/t5/Kinetis-Microcontrollers/Is-it-possible-to-use-DMA-for-both-I2C0-and-I2C3-simultaneosly/m-p/818347#M49550 <HTML><HEAD></HEAD><BODY><P>Hi mikebez&nbsp;</P><P></P><P>If you are using I2C0 and I2C3 with DMA enabled, it could cause unpredictable behavior, because if a DMA request is triggered, you would not be able to know the true source of the DMA request (module 0 or 3). So, I wouldn't recommend enabling DMA support in both I2C modules.</P><P></P><P>Best regards</P><P>Jorge Alcala</P></BODY></HTML> Sat, 01 Dec 2018 00:00:06 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Is-it-possible-to-use-DMA-for-both-I2C0-and-I2C3-simultaneosly/m-p/818347#M49550 jorge_a_vazquez 2018-12-01T00:00:06Z