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6 years ago

CAN data length sometimes wrong

Hi We use the Altera CAN IP and HPS CAN API on the Cyclone V SoC. Even though we always send the same data length (DLC) on a given CAN ID, it is sometimes sent with an incorrect DLC. Just for ref...

EBERLAZARE_I_Intel

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Regular Contributor

6 years ago

Hi Thomas,

Is the CAN bus enabled in device tree?

Regards.

TJesp1
New Contributor
6 years ago
Hi el.ign I’m not sure what you mean with “Device Tree”? We are running uC/OS-III as OS on ARM0 with two threads (one for RX and one TX) utilizing the Altera HPS CAN Controller API. Thomas Jespersen Senior Firmware Engineer, B.Sc.E.E. Secure Power Kolding Building & IT Business Schneider Electric D +45 72 19 02 40 F +45 72 19 03 50 E thomas.jespersen@se.com<mailto:thomas.jespersen@se.com> Silcon Allé 1 6000 Kolding Denmark [http://www.schneider-electric.com/b2b/en/campaign/life-is-on/life-is-on.jsp#xtor=CS4-112-[Mixed]-[lifeison]-[]-[]]<http://www.schneider-electric.com/b2b/en/campaign/life-is-on/life-is-on.jsp#xtor=CS4-112-[Mixed]-[lifeison]-[]-[]> *Please consider the environment before printing this e-mail [Blog]<https://www.facebook.com/SchneiderElectric> [Blog] <https://www.linkedin.com/company/schneider-electric> [Blog] <http://blog.schneider-electric.com/> [Blog] <https://www.twitter.com/SchneiderElec> [Blog] <https://www.youtube.com/schneidercorporate> [Blog] <https://plus.google.com/+schneiderelectric> [Blog] <https://instagram.com/schneiderelectric>
- EBERLAZARE_I_Intel
  Regular Contributor
  6 years ago
  Hi Thomas,
  The CAN is enabled in the device tree using Linux;
  I highly suggest you refer here;
  https://rocketboards.org/foswiki/Documentation/LinuxCANBusOnTheCyclone5
  Regards.
- EBERLAZARE_I_Intel
  Regular Contributor
  6 years ago
  Hi,
  I would recommend that you configure the CAN bus in the Linux Kernel to make sure your design is working there.
  Regards.
- TJesp1
  New Contributor
  6 years ago
  Hi We don’t use Linux… Thomas Jespersen Senior Firmware Engineer, B.Sc.E.E. Secure Power Kolding Building & IT Business Schneider Electric D +45 72 19 02 40 F +45 72 19 03 50 E thomas.jespersen@se.com<mailto:thomas.jespersen@se.com> Silcon Allé 1 6000 Kolding Denmark [http://www.schneider-electric.com/b2b/en/campaign/life-is-on/life-is-on.jsp#xtor=CS4-112-[Mixed]-[lifeison]-[]-[]]<http://www.schneider-electric.com/b2b/en/campaign/life-is-on/life-is-on.jsp#xtor=CS4-112-[Mixed]-[lifeison]-[]-[]> *Please consider the environment before printing this e-mail [Blog]<https://www.facebook.com/SchneiderElectric> [Blog] <https://www.linkedin.com/company/schneider-electric> [Blog] <http://blog.schneider-electric.com/> [Blog] <https://www.twitter.com/SchneiderElec> [Blog] <https://www.youtube.com/schneidercorporate> [Blog] <https://plus.google.com/+schneiderelectric> [Blog] <https://instagram.com/schneiderelectric>