On 02/29/2016 11:00 AM, Marc Kleine-Budde wrote: > I think it's better to fix the algorithm. I'll look into it.
What about: > ./can-calc-bit-timing -c 39999998 rcar_can > > Bit timing parameters for rcar_can with 39.999998 MHz ref clock > nominal real Bitrt nom real SampP > Bitrate TQ[ns] PrS PhS1 PhS2 SJW BRP Bitrate Error SampP SampP Error > CiBCR > 1000000 125 2 3 2 1 5 999999 0.0% 75.0% 75.0% 0.0% > 0x40040100 > 800000 125 3 4 2 1 5 799999 0.0% 80.0% 80.0% 0.0% > 0x60040100 > 500000 125 6 7 2 1 5 499999 0.0% 87.5% 87.5% 0.0% > 0xc0040100 > 250000 250 6 7 2 1 10 249999 0.0% 87.5% 87.5% 0.0% > 0xc0090100 > 125000 500 6 7 2 1 20 124999 0.0% 87.5% 87.5% 0.0% > 0xc0130100 > 100000 625 6 7 2 1 25 99999 0.0% 87.5% 87.5% 0.0% > 0xc0180100 > 50000 1250 6 7 2 1 50 49999 0.0% 87.5% 87.5% 0.0% > 0xc0310100 > 20000 3125 6 7 2 1 125 19999 0.0% 87.5% 87.5% 0.0% > 0xc07c0100 > 10000 6250 6 7 2 1 250 9999 0.0% 87.5% 87.5% 0.0% > 0xc0f90100 But I've to port the algorithm from can-calc-bit-timing to the kernel. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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