US 12,332,821 B2
Circuit, method and device for addressing can nodes
Changying Peng, Hefei (CN); Jie Yang, Hefei (CN); Lin Wang, Hefei (CN); and Fei Chen, Hefei (CN)
Assigned to Sungrow Energy Storage Technology Co., Ltd., Anhui (CN)
Filed by Sungrow Energy Storage Technology Co., Ltd., Hefei (CN)
Filed on Nov. 27, 2023, as Appl. No. 18/520,149.
Claims priority of application No. 202310730757.5 (CN), filed on Jun. 16, 2023.
Prior Publication US 2024/0419620 A1, Dec. 19, 2024
Int. Cl. G06F 3/00 (2006.01); G06F 13/40 (2006.01)
CPC G06F 13/404 (2013.01) 15 Claims
OG exemplary drawing
 
1. A circuit for addressing CAN nodes, comprising a fuse adapter board, a first CMU and a second CMU; wherein
the fuse adapter board comprises a short-circuited circuit;
the first CMU comprises a first MCU and a first CAN identification circuit, wherein a first terminal of the first MCU is connected to a CAN interface in the fuse adapter board through a CAN interface, and a second terminal of the first MCU is connected to the first CAN identification circuit;
the second CMU comprises a second MCU and a second CAN identification circuit, wherein a first terminal of the second MCU is connected to a CAN interface in the fuse adapter board through the CAN interface, and a second terminal of the second MCU is connected to the second CAN identification circuit;
the fuse adapter board is connected to the first MCU or the second MCU through the short-circuited circuit, and is configured to control the short-circuited circuit to be shorted to enable a level on a GPIO pin of the first MCU or a GPIO pin of the second MCU connected to the short-circuited circuit to be a low level;
the first MCU is configured to set a CAN addressing based on a level on the GPIO pin of the first MCU; and
the second MCU is configured to set a CAN addressing based on a level on the GPIO pin of the second MCU.