how to use FDCAN for nucleo-n657x0-Q

[sujeong]

hi 
I’m using the board named NUCLEO-N657X0-Q 

and I want to use feature of FDCAN

but I couldn’t find pin map for that 

where is the pin number for FDCAN? 

Thanks

[mƎALLEm]

Hello ​@sujeong and welcome to the ST community,

FDCAN pins are available as the following on the board:

FDCAN1_Rx / PD0 available on CN15 pin 33

FDCAN1_Tx / PA12 available on ARDUINO® Uno V3 (CN4) pin 4 or PH2 available on CN3 pin 38.

FDCAN3_Rx / PE12 on CN15 pin 1 

FDCAN3_Tx / PE11 on CN15 pin 23 

FDCAN2_Rx is overlapping with the serial wire debug pin SWO pin. 

How to check that?: need to refer to the datasheet of the product, find the FDCAN pins you need to use and finally check on wihch board that pin is available by referring to the user manual of the board:  UM3417 especially the sections: 8.5 ARDUINO® Uno V3 V3 connectors (CN4, CN5, CN13, CN14) and 8.6 ST morpho connectors (CN2, CN3, CN15, CN16)

You need to add a CAN or FDCAN transceiver (depending on the mode) externally to that board to connect it to a CAN bus.

Hope that helps.

[sujeong]

thanks a lot :) it was big helps thank you 

[Andrew Neil]

I couldn’t find pin map for that 

As ​@mƎALLEm said, the User Manual for the board tells you how the processor pins map to the connectors of the board:

(see also the board schematics)

 

And the chip Datasheet tells you which pins have FDCAN functions:

 

[sujeong]

I have to study that how to use datasheet more anyway thank you so much :)