S32KのトピックRe: S32K146 CAN FD

S32K146 CAN FD

gravity_one — Mon, 17 May 2021 14:40:00 GMT

Q1: CAN-FD data phase only set max 1000kbit/s ？

Q2 : CAN-FD:

if the CAN bus is connected when the machine is started, the transceiver is normal;

but cannot send out data return BUSY while hot-plug.

if (state->mbs[mb_idx].state != FLEXCAN_MB_IDLE)

{ return STATUS_BUSY; }

Re: S32K146 CAN FD

PetrS — Tue, 18 May 2021 08:38:05 GMT

Hi,

1) theoretically up to 8Mbps is supported, but this is also limited by used PE clock, transceiver and real bus.

2) there should not be problem with hot-plug. If the MB cannot still be used for transmission, try to first AbortTransfer and then send message normally.

BR, Petr

Re: S32K146 CAN FD

gravity_one — Wed, 19 May 2021 10:01:10 GMT

hello，

set Data phase to MAX 1600kbit/s by ProcessorExpert.pe

Re: S32K146 CAN FD

PetrS — Tue, 25 May 2021 05:59:17 GMT

Hi,

use crystal with higher frequency or select system clock as PE clock source.

BR, Petr