Sienovo TI AM5728 DCAN Driver Deep Dive

Device Tree DTS:

       can @481cc000 {
           compatible = "ti,dra7-d_can";
           ti,hwmods = "dcan1";
           reg = <0x4ae3c000 0x2000>;
           syscon-raminit = <0x9 0x558 0x0>;
           interrupts = <0x0 0xde 0x4>;
           clocks = <0x10d>;
           status = "disabled";
           phandle = <0x209>;
       };

       can@481d0000 {
           compatible = "ti,dra7-d_can";
           ti,hwmods = "dcan2";
           reg = <0x48480000 0x2000>;
           syscon-raminit = <0x9 0x558 0x1>;
           interrupts = <0x0 0xe1 0x4>;
           clocks = <0x11>;
           status = "disabled";
           phandle = <0x20a>;
       };

CAN Bus Testing Method

Execute the following commands in the development board's file system to configure CAN0 bus (CAN0 in software corresponds to CAN1 in hardware) with a bitrate of 1MHz and start the CAN bus:

Target# canconfig can0 bitrate 1000000

Target# canconfig can0 start

Execute the following command to monitor data sent from the PC:

Target# candump can0

Driver automatically installed on PC

Then open the debugging instrument software

First, set the COM port and bitrate to 1MHz.
Select any data point to send or send in a loop.

Example Screenshots

Reference Article: Sienovo AM5728 CAN Bus Testing and SDK Upgrade https://blog.csdn.net/YEYUANGEN/article/details/94588789