Power ManagementのトピックRe: FS6523 CAN Transceiver in LISTEN Mode

FS6523 CAN Transceiver in LISTEN Mode

Shailendrag — Mon, 13 Sep 2021 08:30:46 GMT

Hi All

I am using FS6523C as power chip and set the CAN mode as NORMAL Mode during initialization. When am set CAN mode as Normal mode am able to Rx and TX data successfully on Canalyzer. But when am set the CAN mode as LISTEN mode, Tx is off but am unable to Rx any signal also. Is this correct ?

Or any other configuration is required for CAN LISTEN mode.?

what is the expected behavior when we set CAN Mode as LISTEN mode ?

Thanks

Re: FS6523 CAN Transceiver in LISTEN Mode

guoweisun — Tue, 14 Sep 2021 02:17:40 GMT

When the CAN mode bit configuration is ’01’ (CAN in listen only), the device is only
able to report the bus level to the RXD pin. The TXD driver is off and the device is not
able to transmit information from TXD to the bus. TXD is maintained high by an internal
pull-up resistor TXDPULL-UP connected to VDDIO

Re: FS6523 CAN Transceiver in LISTEN Mode

Shailendrag — Tue, 14 Sep 2021 09:41:54 GMT

Means when we set the CAN to LISTEN Mode then we should only able to receive the RXD signal. Is this understanding correct ?