https://forge.codesys.com/forge/talk/Engineering/thread/3406e092d8/2025-03-27T14:05:36.409000ZRecent posts to Problem with MCP2515 and library CANbus2025-03-27T14:05:36.409000Z2025-03-27T14:05:36.409000Zczekhttps://forge.codesys.com/u/buczekj/https://forge.codesys.comf4b6ae7e08656fafeceaa952c2a97f98a35a7677

<div class="markdown_content"><p>Hello, <br/> I encountered this same error. I was able to resolve it by allocating more messages when I open the network driver (ctMessages:= 100). By default it is set to 25.</p></div>

2021-11-25T17:19:56.402000Z2021-11-25T17:19:56.402000Zchrismelhttps://forge.codesys.com/u/chrismel/https://forge.codesys.com675e4ef06277faededcb4640ebe15d32d36f502d

<div class="markdown_content"><p>Hi guys,<br/> I'm starting a project with a raspberry pi and MCP2515 CAN-module.</p> <p>I've implemented code to open and send message to "can0" and apparently it work.</p> <p>However, when I try to send more then 10 messages each 100ms, the module block all trasmission.</p> <p>I've noticed CL2.CreateMessage(...., ....) return the error message "30112" I believe it is "queue error".</p> <p>After that I tried to change the "txqueuelen" of the device using the command "ifconfig can0 txqueuelen 10000"<br/> but the issue it's the same.</p> <p>I can send little more than 20 messages for a few minutes before I generate the same error.</p> <p>How do I transmit hundred messages on the CAN?<br/> Should I change other settings on the raspberry?</p> <p>I append the code I made to send messages.</p> <p>Let me know if you have any advice to give me to make it work.</p> <p>Thank you.</p></div>