# Uavcan communication between bms and px4

**URL:** <https://discuss.px4.io/t/uavcan-communication-between-bms-and-px4/39202>\
**Category:** PX4 Autopilot\
**Created:** [June 12, 2024, 7:48am UTC](https://discuss.px4.io/t/uavcan-communication-between-bms-and-px4/39202 "2024-06-12T07:48:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![yd\_Auvidea](https://discuss.px4.io/letter_avatar_proxy/v4/letter/y/c4cdca/32.png) [@yd\_Auvidea](https://discuss.px4.io/u/yd_Auvidea)\
**Post date:** [June 12, 2024, 7:48am UTC](https://discuss.px4.io/t/uavcan-communication-between-bms-and-px4/39202/1 "2024-06-12T07:48:57Z")

</div>

Hello,

We connected

NXP-BMS772 (J3) with actual firmware from git to

orange cube (can1) with PX4 Pro v1.14.3.

On CAN we logged 18 frames per second but in QGroundControl the LiPo pack is not visible ?

Are there any setting required ?

PS:

Can log with HL-340 ( 1000000 Baud )

82.096391 dlc=4 0139041f 00 00 00 df  
82.147965 dlc=8 0139041f 3c 35 f6 00 00 f8 00 00  
82.149184 dlc=8 0139041f 00 f7 ff df fe 00 00 00  
82.195299 dlc=2 01204e10 00 f7  
82.196054 dlc=4 0139041f 00 f8 00 df  
82.297600 dlc=4 0139041f 00 00 00 df  
82.396399 dlc=4 0139041f 00 f8 00 df  
82.406055 dlc=8 01550110 59 02 00 00 00 00 00 00  
82.407121 dlc=8 01040001 88 f2 cd 23 00 00 00 00  
82.495493 dlc=4 0139041f 00 00 00 23  
82.597262 dlc=4 0139041f 00 f8 00 23  
82.645951 dlc=8 0139041f 3c 35 f6 00 00 f8 00 00  
82.647112 dlc=8 0139041f 00 f7 ff df fe 00 00 00  
82.696385 dlc=2 01204e10 00 f7  
82.697188 dlc=4 0139041f 00 00 00 df  
82.795498 dlc=4 0139041f 00 f8 00 df  
82.897469 dlc=4 0139041f 00 00 00 df  
82.996337 dlc=4 0139041f 00 f8 00 df