Part Number: AM3359
Other Parts Discussed in Thread: ISO1050
Tool/software: Linux
Hello Experts,
For CAN interface validation, I am using two beagleboneblack (BBB) boards and using the latest processor SDK.
I have connected CAN_H(BBB1) to CAN_H(BBB2) and CAN_L(BBB1) to CAN_L(BBB2)
1) Here is my dts change.
&dcan0 {
pinctrl-names = "default";
pinctrl-0 = <&dcan0_pins>;
status = "okay";
};
dcan0_pins: pinmux_dcan0_pins {
pinctrl-single,pins = <
0x17c ( 0x32 ) //(D17) uart1_rtsn.dcan0_rx
0x178 ( 0x12 ) /* (D18) uart1_ctsn.dcan0_tx */
>;
};
// 0x178 ( PIN_OUTPUT | MUX_MODE2 ) // (D18) uart1_ctsn.dcan0_tx
// 0x17c ( PIN_INPUT | MUX_MODE2 ) //(D17) uart1_rtsn.dcan0_rx
I am getting nothing while doing candump.
2) Also I suspect on CAN connections.
One wiki says that we should connect CAN_H to CAN_H and CAN_L to CAN_L, but another wiki says, CAN_L to CAN_L and CAN_H to GND.
Which is correct and any special purpose for these connections /
Thanks for the help.
