On 13.01.2022 22:10:18, Marc Kleine-Budde wrote: > On 13.01.2022 21:30:04, Marc Kleine-Budde wrote: > > > Recently we did few experiments with our CANFD network. Stuff error > > > observed with different Nominal and Dataphase prescaler configuration > > > values, which we get from the frame work. > > > > > > For lower baud rates separate prescalers are working good, but when we > > > switch to high baud rates(like 4Mbps and 5Mbps) observed the BUSOFF > > > state(Due to stuff errors) on IP(Xilinx). > > > > > > With shared prescaler(low prescalers) we are not seeing the > > > issue.. Can you please provide me: - the bit timing constants of the IP core for the arbitration and data phase - the bit rate for the arbitration and data phase (especially where the framework calculates not common prescalers) - the clock rate of the CAN bus clock Can you also provide the hand calculated bit timing parameters for the above scenarios? regards, 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 |
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