The read will always request 8 bytes of data even if there are only 2 bytes in the canbus messages

[amigob]

The read will always request 8 bytes of data even if there are only 2 bytes in the canbus messages.
This completely messes up the read comunication after a 2 byte data data package
it is like this

if(dtaLen <= 32)
    {
        CANI2C.beginTransmission(0x41);
        CANI2C.write(canNum ? 0x17 : 0x07);
        CANI2C.endTransmission();

        CANI2C.requestFrom(0x41, 8);

        for(int i=0; i<8; i++)
        {
            str[i]= CANI2C.read();
        }
    }

and it needs to be

if(dtaLen <= 32)
    {
        CANI2C.beginTransmission(0x41);
        CANI2C.write(canNum ? 0x17 : 0x07);
        CANI2C.endTransmission();

        CANI2C.requestFrom(0x41, dtaLen);

        for(int i=0; i<dtaLen; i++)
        {
            str[i]= CANI2C.read();
        }
    }

After this change I could use the CANBED dual in my sprinter to sniff the internal CANBUS's. before this changes it was even starting to think that there were extended CAN message on the CANBUS. Please fix this in your code, I am not the only one having this problem.

[kaipyroami]

@amigob thank you for the hanging RX fix.

[hpfiend-CAN]

@amigob Could you please reach out to me at hpfiend at gmail dot com I would love to speak with you about your fix!