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Transclusion: Debian: iMX7: CAN Bus - Revision history
2026-04-17T18:41:19Z
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https://www.mediawiki.compulab.com/w/index.php?title=Transclusion:_Debian:_iMX7:_CAN_Bus&diff=4362&oldid=prev
imported>Uri.mashiach at 15:17, 10 December 2018
2018-12-10T15:17:15Z
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 15:17, 10 December 2018</td>
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<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <del class="diffchange diffchange-inline">Software </del>to install {{filename|can-utils}}</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">===== Software installation =====</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <ins class="diffchange diffchange-inline">Use the following command </ins>to install {{filename|can-utils}}<ins class="diffchange diffchange-inline">:</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>root@cl-rootfs:~# apt-get install --no-install-recommends can-utils</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>root@cl-rootfs:~# apt-get install --no-install-recommends can-utils</div></td></tr>
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imported>Uri.mashiach
https://www.mediawiki.compulab.com/w/index.php?title=Transclusion:_Debian:_iMX7:_CAN_Bus&diff=3371&oldid=prev
Ilya at 11:43, 14 June 2017
2017-06-14T11:43:57Z
<p></p>
<p><b>New page</b></p><div>* Software to install {{filename|can-utils}}<br />
<pre><br />
root@cl-rootfs:~# apt-get install --no-install-recommends can-utils<br />
</pre><br />
<br />
===== Loading CAN modules =====<br />
If the FLEXCAN driver and/or Raw CAN protocol compiled as module(s), they must be loaded prior to enabling CAN interface.<br />
<br />
* The FLEXCAN driver gets loaded automatically. Make sure it is loaded: <br />
<pre><br />
root@cl-rootfs:~# lsmod | grep can<br />
flexcan 102 0<br />
</pre><br />
:The FLEXCAN driver can be loaded manually:<br />
<pre><br />
root@cl-rootfs:~# modprobe flexcan<br />
30a00000.can supply xceiver not found, using dummy regulator<br />
flexcan 30a00000.can: device registered (reg_base=f5a00000, irq=277)<br />
30a10000.can supply xceiver not found, using dummy regulator<br />
flexcan 30a10000.can: device registered (reg_base=f5a10000, irq=278)<br />
</pre><br />
* Load Raw CAN protocol module:<br />
<pre><br />
root@cl-rootfs:~# modprobe can-raw<br />
can: raw protocol (rev 20120528)<br />
</pre><br />
<br />
===== CAN interface configuration =====<br />
It is recommended configure the CAN interface, with the {{filename|iproute2}} utilities.<br />
<br />
* To make sure the right {{filename|ip}} utility is used, run:<br />
<pre><br />
root@cl-rootfs:~# ip -V<br />
ip utility, iproute2-ss151103<br />
</pre><br />
* Configure the CAN interface bit-rate to 125 Kbits/sec (values of up to 1Mbit/sec are supported):<br />
<pre><br />
root@cl-rootfs:~# ip link set can0 type can bitrate 125000<br />
</pre><br />
* Enable the CAN interface:<br />
<pre><br />
root@cl-rootfs:~# ip link set can0 up<br />
flexcan 30a00000.can can0: writing ctrl=0x0b312005<br />
</pre><br />
<br />
===== Send/Receive packets =====<br />
Use {{filename|cansend}} and {{filename|candump}} utilities to send and receive packets via CAN interface.<br />
<br />
* Send standard CAN frame (on the first device):<br />
<pre><br />
root@cl-rootfs:~# cansend can0 111#1122334455667788<br />
</pre><br />
<br />
* Send extended CAN frame (on the first device):<br />
<pre><br />
root@cl-rootfs:~# cansend can0 11111111#1122334455667788<br />
</pre><br />
<br />
* Dump all received data frames as well as error frames (on the second device):<br />
<pre><br />
root@cl-rootfs:~# candump any,0:0,#FFFFFFFF<br />
can0 111 [8] 11 22 33 44 55 66 77 88<br />
can0 11111111 [8] 11 22 33 44 55 66 77 88<br />
</pre></div>
Ilya