> -----Ursprüngliche Nachricht----- > Von: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> > Gesendet: Sonntag, 6. Dezember 2020 11:33 > Better add the overlays statically in the bootloader via config.txt: > > | dtoverlay=mcp251xfd,spi0-0,interrupt=18 This did the trick, thanks a lot. I mixed up the interrupts, so here is the complete setup from config.txt dtoverlay=mcp251xfd,spi0-0,interrupt=25 dtoverlay=spi1-1cs,cs0_pin=18 dtoverlay=mcp251xfd,spi1-0,interrupt=24 and dmesg shows: [ 4.970974] CAN device driver interface [ 4.975933] spi_master spi0: will run message pump with realtime priority [ 4.986175] mcp251xfd spi0.0 can0: MCP2518FD rev0.0 (-RX_INT -MAB_NO_WARN +CRC_REG +CRC_RX +CRC_TX +ECC -HD c:40.00MHz m:20.00MHz r:17.00MHz e:0.00MHz) successfully initialized. [ 4.986950] spi_master spi1: will run message pump with realtime priority [ 4.994958] mcp251xfd spi1.0 can1: MCP2518FD rev0.0 (-RX_INT -MAB_NO_WARN +CRC_REG +CRC_RX +CRC_TX +ECC -HD c:40.00MHz m:20.00MHz r:17.00MHz e:0.00MHz) successfully initialized. Sven -- Sven Schuchmann Schleißheimer Soft- und Hardwareentwicklung GmbH Am Kalkofen 10 61206 Nieder-Wöllstadt GERMANY Phone: +49 6034 9148 711 Fax: +49 6034 9148 91 Email: schuchmann@xxxxxxxxxxxxxxxxx