DESK-XZ7-L/Peripherals/CAN
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| History | |||
|---|---|---|---|
| Issue Date | Notes | ||
| DESK-XZ7-L-1.x.x release | |||
| Add CAN message usage information | |||
| 2024/11/26 | Add PCAN-USB example use case | ||
Contents
Peripheral CAN[edit | edit source]
CAN is routed through the PL using the TCL scripts for the Vivado project example here below:
recreate_prj_bora_BASE.tclrecreate_prj_boralite_BASE.tclrecreate_prj_boralite_NAND.tclrecreate_prj_borax_BASE.tcl
Accessing the peripheral[edit | edit source]
Linux messages at boot time[edit | edit source]
root@bora:~# dmesg | grep -i can [ 0.545770] CAN device driver interface [ 0.752012] can: controller area network core [ 0.761010] can: raw protocol [ 0.763989] can: broadcast manager protocol [ 0.768236] can: netlink gateway - max_hops=1
Enable the interface and check status[edit | edit source]
The following commands can be issued from the command line to enable the CAN interface on BORA:
root@bora:~# ip link set can0 type can bitrate 500000 root@bora:~# ifconfig can0 up
To test the CAN interface it is possible to use a PCAN-USB device connected to the DESK-XZ7-L-MVM. The following commands can be issued from the command line to enable the CAN interface on the MVM:
dvdk@vagrant:~# sudo ip link set can0 type can bitrate 500000 dvdk@vagrant:~# sudo ifconfig can0 up
Usage with can-utils[edit | edit source]
cansend[edit | edit source]
This is an example of using a BORA Evaluation Kit to send data connected to a PCAN-USB device (that receives the data).
- the following commands can be issued from the command line on BORA to send data to PCAN-USB
root@bora:~# cansend can0 -i 0x7ff 00 01 02 03 04 05 06 07 interface = can0, family = 29, type = 3, proto = 1 <0x7ff> [8] 00 01 02 03 04 05 06 07
- the following commands can be issued from the command line on MVM to receive data from BORA with PCAN-USB
dvdk@vagrant:~# candump can0 can0 7FF [8] 00 01 02 03 04 05 06 0
candump[edit | edit source]
This is an example of using a PCAN-USB device to send data to a connected BORA Evaluation Kit (that receives the data).
- the following commands can be issued from the command line on MVM to send data with PCAN-USB
dvdk@vagrant:~# cansend can0 7ff#0001020304050607 can0 7FF [8] 00 01 02 03 04 05 06 07
- the following commands can be issued from the command line on BORA to receive data from PCAN-USB
root@bora:~# candump can0 interface = can0, family = 29, type = 3, proto = 1 <0x7ff> [8] 00 01 02 03 04 05 06 07
