I am using FS6500. I just want to use it as CAN transceiver. I don't want to implement any safety related features.
Should I need to configure or check any registers in FS6500 through SPI?
If any, pls give your advice.
Hi Murugesh ,
Thank you for the question,
First, CAN_5V voltage regulator is not a safety regulator:
Secondly, when you use FS1b, you should refer to INIT_FAULT register to configure FS1B_CAN_IMPACT to 0, which will be configured in the initial phase.
for more detailed, please refer to https://www.nxp.com/webapp/sps/download/mod_download.jsp?colCode=FS6500-FS4500&appType=moderatedWithoutFAE&Parent_nodeId=1453846783634702268130&Parent_pageType=product
Help this will help you
Thanks for the reply.
I would like to just elaborate my question..
Previously i was working with NXP evaluation board and used FlexCAN0 in MPC5744P. The CAN transceiver used in that board was MC33901. It's a standalone CAN transceiver. CAN communication was working good enough.
Now instead of MC33901, i used FS6500 and made the CAN interface connections as depicted in the application note. But the CAN communication is not working.
My question is... Should i need to configure any of the registers in the FS6500 through SPI before starting the CAN communication?
I just only want to have CAN communication. I am not interested in any of the safety related features right now.
OK, got it , you should configure CAN_LIN_MODE register, configure CAN_MODE_1:0 to "11",
the default CAN state is sleep;
if the problem is still exist please check DIAG_VSUP_VCAN and DIAG_CAN_FD registers to find if there are CAN power supply and physical connection errors.
Help this will help you.
I am trying to write the FS6500 registers. But it is unsuccessful.
I want to know about the SPI wave format to be used..
1. Classical SPI or Modified SPI transfer format?
2. About the Clock polarity and phases?
some registers of FS6500 can only be configured in the initial phase; some can be configured in normal mode;
please see the picture below about the SPI:
for more details, please refer to the datasheet of FS4500~FS6500 in the https://www.nxp.com/webapp/sps/download/mod_download.jsp?colCode=FS6500-FS4500&appType=moderatedWithoutFAE&Parent_nodeId=1453846783634702268130&Parent_pageType=product
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