https://community.nxp.com/t5/Drones-and-Rovers/RDDRONE-BMS772-I2C-crashes-after-a-while/m-p/1423536#M38 <P>Hi there,</P><P>I'm using the SMBUS implementation to retrieve values from the RDDRONE-BMS772 (FW bms5.0-10.1).<BR />After a random time (usually more then 20 minutes) the I2C-communicaiton crashes until I reboot the BMS from CLI.<BR /><BR />I use a simple pyhton script on NVIDIA Xavier NX dev-kit using "smbus2 0.4.1".<BR />The devkit has <SPAN class=""><SPAN>2.2KΩ pull-ups integrated and the BMS is the only slave on the I2C_2.</SPAN></SPAN></P><P>Rebooting the Xavier doesn't help but rebooting the BMS works. So I think the problem is on the BMS side. As I'm not familiar with the BMS and nuttx yet I need some help getting started for debuging here.</P> Sun, 06 Mar 2022 16:41:22 GMT thetruthishere 2022-03-06T16:41:22Z https://community.nxp.com/t5/Drones-and-Rovers/RDDRONE-BMS772-I2C-crashes-after-a-while/m-p/1423536#M38 <P>Hi there,</P><P>I'm using the SMBUS implementation to retrieve values from the RDDRONE-BMS772 (FW bms5.0-10.1).<BR />After a random time (usually more then 20 minutes) the I2C-communicaiton crashes until I reboot the BMS from CLI.<BR /><BR />I use a simple pyhton script on NVIDIA Xavier NX dev-kit using "smbus2 0.4.1".<BR />The devkit has <SPAN class=""><SPAN>2.2KΩ pull-ups integrated and the BMS is the only slave on the I2C_2.</SPAN></SPAN></P><P>Rebooting the Xavier doesn't help but rebooting the BMS works. So I think the problem is on the BMS side. As I'm not familiar with the BMS and nuttx yet I need some help getting started for debuging here.</P> Sun, 06 Mar 2022 16:41:22 GMT https://community.nxp.com/t5/Drones-and-Rovers/RDDRONE-BMS772-I2C-crashes-after-a-while/m-p/1423536#M38 thetruthishere 2022-03-06T16:41:22Z