Other NXP ProductsのトピックRe: Interfacing PCA9548A with CC3200 https://community.nxp.com/t5/Other-NXP-Products/Interfacing-PCA9548A-with-CC3200/m-p/654904#M4527 <HTML><HEAD></HEAD><BODY><P>Hello Harish,</P><P></P><P>You mentioned that the same configuration works properly using the Arduino Uno R3, in this case, are you using the same I2C configuration at the CC3200? Does the firmware changed?</P><P></P><P>In this case, I assume it is a timing issue. Are you within the dynamic characteristics mentioned on the Table 9 from the</P><P><A href="http://cache.nxp.com/documents/data_sheet/PCA9548A.pdf">PACA9548A datasheet</A>?</P><P></P><P>Regards,</P><P>David</P></BODY></HTML> Thu, 13 Apr 2017 16:31:33 GMT david_diaz 2017-04-13T16:31:33Z Interfacing PCA9548A with CC3200 https://community.nxp.com/t5/Other-NXP-Products/Interfacing-PCA9548A-with-CC3200/m-p/654903#M4526 <HTML><HEAD></HEAD><BODY><P>I am using Energia IDE to program my RBL CC3200 wifi micro. I am trying to interface multiple IMUs through a PCA9548APW. My circuit looks something the one below. There seems to a communication issue between the CC3200 and the MUX.</P><P>The exact same circuit works well with an Arduino Uno R3 but not with the CC3200. I have tried using a variety of Pull up Resistors from 1k to 10k.</P><P>On connecting the SDA and SCL to an oscilloscope, I came to notice that there is a constant digital signal on the SDA line and no signal on the SCL pin.&nbsp;</P><P>When I plugged in an MPU6050 directly to the CC3200, without the MUX in between, there is no problem.</P><P>I am pretty clueless on where I am going wrong. What could be the issue and how can I get it working?<span class="lia-inline-image-display-wrapper" image-alt="Block Diagram.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/18223i3904D0213A885ECE/image-size/large?v=v2&amp;px=999" role="button" title="Block Diagram.png" alt="Block Diagram.png" /></span></P></BODY></HTML> Thu, 06 Apr 2017 08:45:42 GMT https://community.nxp.com/t5/Other-NXP-Products/Interfacing-PCA9548A-with-CC3200/m-p/654903#M4526 harishjayanth 2017-04-06T08:45:42Z Re: Interfacing PCA9548A with CC3200 https://community.nxp.com/t5/Other-NXP-Products/Interfacing-PCA9548A-with-CC3200/m-p/654904#M4527 <HTML><HEAD></HEAD><BODY><P>Hello Harish,</P><P></P><P>You mentioned that the same configuration works properly using the Arduino Uno R3, in this case, are you using the same I2C configuration at the CC3200? Does the firmware changed?</P><P></P><P>In this case, I assume it is a timing issue. Are you within the dynamic characteristics mentioned on the Table 9 from the</P><P><A href="http://cache.nxp.com/documents/data_sheet/PCA9548A.pdf">PACA9548A datasheet</A>?</P><P></P><P>Regards,</P><P>David</P></BODY></HTML> Thu, 13 Apr 2017 16:31:33 GMT https://community.nxp.com/t5/Other-NXP-Products/Interfacing-PCA9548A-with-CC3200/m-p/654904#M4527 david_diaz 2017-04-13T16:31:33Z