On 6/22/20 2:43 PM, Kurt Van Dijck wrote: > I get RX-0: FIFO overflows in listen-only mode (back-to-back burst of > the single other node). Single other node? Who's ACKing the CAN frames? > The SPI peripheral does not use DMA :-(. The SPI messages are quite small, so DMA wont help either. Getting rid of the IRQ and polling for completion is the way to go. > Do you have, by accident, some freescale SPI fixes lying around? nope > It's not the biggest problem on my side, but is proves the system not > being guarded against load. Do you have freq scaling activated? Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
