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Receiving no packages #8

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benedikt-bartscher opened this issue Sep 20, 2018 · 3 comments
Open

Receiving no packages #8

benedikt-bartscher opened this issue Sep 20, 2018 · 3 comments
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@benedikt-bartscher
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I am trying to send and receive a package between two Arduino Nanos. I am using the SeedStudio CAN_BUS_Shield library (your fork is marked as deprecated). Sending and receiving is no problem with send_Blink and receive_Blink from SeedStudios library. But with your library i am only able to send packages...
@adlerweb
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adlerweb commented Nov 3, 2018

No problems receiving packages over here. Keep in mind only valid aSysBus-Packages are parsed/processed.

@adlerweb adlerweb added the feedback Waiting for feedback label Nov 4, 2018
@adlerweb adlerweb added bug and removed feedback Waiting for feedback labels Dec 4, 2018
@adlerweb
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adlerweb commented Dec 4, 2018

Upstream readMsgBufID doesn't work as expected in some situations

adlerweb added a commit that referenced this issue Dec 4, 2018
@adlerweb
Drop reading rtr/ext due to a problem with extended readMsgBufID
fa46752 
Currently using readMsgBufID will not correctly signal "no packet" and runs into a loop
Ref #8
@graynet-dev
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The problem is in the CAN_BUS_Shield library. If in the example send_Blink.ino set CAN.sendMsgBuf (0x70, 1, 8, stmp); RX is missing. The solution is to change mcp2515_initCANBuffers. I used the code from the library MCP_CAN coryjfowler.

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@adlerweb @benedikt-bartscher @graynet-dev