https://community.nxp.com/t5/LPC-Microcontrollers/Fast-data-transfer-to-pc-with-lpc-82x/m-p/1728361#M54189 <P>Hello,</P><P>I am using the adc of the lpc824 microcntroller and I would like to send the samples to my pc for post processing. Currently I am using an interrupt generated by the mrt to get a data from the adc and send this data through the uart. So far I am running the interrupt at 1ms and everything works fine. I would like to go up to 50 us (20kS/s <LI-EMOJI id="lia_disappointed-face" title=":disappointed_face:"></LI-EMOJI> the ADC is rated for 1MS/s so there should not be a problem for that.. but I am afraid that the Uart code and communication could take too much time and cannot be executed in 50us. Is there a better way to have fast data transfer with the LPC82x microcontrollers?&nbsp;</P><P>&nbsp;</P> Sun, 24 Sep 2023 12:45:53 GMT topspin 2023-09-24T12:45:53Z https://community.nxp.com/t5/LPC-Microcontrollers/Fast-data-transfer-to-pc-with-lpc-82x/m-p/1728361#M54189 <P>Hello,</P><P>I am using the adc of the lpc824 microcntroller and I would like to send the samples to my pc for post processing. Currently I am using an interrupt generated by the mrt to get a data from the adc and send this data through the uart. So far I am running the interrupt at 1ms and everything works fine. I would like to go up to 50 us (20kS/s <LI-EMOJI id="lia_disappointed-face" title=":disappointed_face:"></LI-EMOJI> the ADC is rated for 1MS/s so there should not be a problem for that.. but I am afraid that the Uart code and communication could take too much time and cannot be executed in 50us. Is there a better way to have fast data transfer with the LPC82x microcontrollers?&nbsp;</P><P>&nbsp;</P> Sun, 24 Sep 2023 12:45:53 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Fast-data-transfer-to-pc-with-lpc-82x/m-p/1728361#M54189 topspin 2023-09-24T12:45:53Z https://community.nxp.com/t5/LPC-Microcontrollers/Fast-data-transfer-to-pc-with-lpc-82x/m-p/1728470#M54193 <P>Hi,</P> <P>If the sampling frequency is 20KHz, the required baut-rate will be</P> <P>20K*2*(2+8)bits=400000.</P> <P>From data sheet of LPC82x, the Maximum bit rates of 1.875 Mbit/s in asynchronous mode is okay. But I suggest you use external crystal which has accurate clock frequency and have a try</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="xiangjun_rong_0-1695611332237.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/242390i81E3443E6BBC9A56/image-size/medium?v=v2&amp;px=400" role="button" title="xiangjun_rong_0-1695611332237.png" alt="xiangjun_rong_0-1695611332237.png" /></span></P> <P>&nbsp;</P> <P>&nbsp;</P> <P>BR</P> <P>XiangJun Rong</P> Mon, 25 Sep 2023 03:09:34 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Fast-data-transfer-to-pc-with-lpc-82x/m-p/1728470#M54193 xiangjun_rong 2023-09-25T03:09:34Z