Kinetis Microcontrollers中的主题 DMA performance https://community.nxp.com/t5/Kinetis-Microcontrollers/DMA-performance/m-p/660333#M40522 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>what performance (MB/s)&nbsp;should I expect,&nbsp;when transferring&nbsp;data from GPIO (8-bit width GPIO0 - GPO7) on edge event on another GPIO pin to RAM using DMA?</P><P></P><P>Is 12 MB/s reachable when system clock = 96 MHz?&nbsp;</P></BODY></HTML> Wed, 01 Feb 2017 12:38:40 GMT martindusek 2017-02-01T12:38:40Z DMA performance https://community.nxp.com/t5/Kinetis-Microcontrollers/DMA-performance/m-p/660333#M40522 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>what performance (MB/s)&nbsp;should I expect,&nbsp;when transferring&nbsp;data from GPIO (8-bit width GPIO0 - GPO7) on edge event on another GPIO pin to RAM using DMA?</P><P></P><P>Is 12 MB/s reachable when system clock = 96 MHz?&nbsp;</P></BODY></HTML> Wed, 01 Feb 2017 12:38:40 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/DMA-performance/m-p/660333#M40522 martindusek 2017-02-01T12:38:40Z Re: DMA performance https://community.nxp.com/t5/Kinetis-Microcontrollers/DMA-performance/m-p/660334#M40523 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Please let me know the part number you mentioned. Thanks.</P></BODY></HTML> Fri, 10 Feb 2017 09:08:40 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/DMA-performance/m-p/660334#M40523 miduo 2017-02-10T09:08:40Z Re: DMA performance https://community.nxp.com/t5/Kinetis-Microcontrollers/DMA-performance/m-p/660335#M40524 <HTML><HEAD></HEAD><BODY><P>Hello, I am just trying to do the same thing as you. And I use the SCTimer match mode to send DMA trigger (in Burst Mode). It seems to me that the max frequency in this mode is about 10 MHz.&nbsp;</P><P>Did you realize the transmission with a greater frequency? If yes, how?</P></BODY></HTML> Tue, 23 May 2017 02:38:58 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/DMA-performance/m-p/660335#M40524 kaiyuewang 2017-05-23T02:38:58Z