STM32F469I-Disco CAN Interfaces connections

Posted on May 19, 2016 at 11:43

Hi nk,

As mentioned in the user manual's schematic of the STM32F469I-Disco

http://www.st.com/content/ccc/resource/technical/document/user_manual/b7/34/4d/b8/bc/ae/47/1f/DM00218846.pdf/files/DM00218846.pdf/jcr:content/translations/en.DM00218846.pdf

, the PA11 and PA12 pin are used for USB peripheral connections.

You have other alternative pins dedicated for CAN1 alternate function which are ( as mentioned in table 10 ''pin and ball definitions in the

http://www.st.com/content/ccc/resource/technical/document/datasheet/2f/48/57/b4/79/f7/4f/65/DM00219980.pdf/files/DM00219980.pdf/jcr:content/translations/en.DM00219980.pdf

) :

Rx/Tx: (PI9, PH13)  or (PB8, PB9) pins

-Hannibal-

Posted on May 19, 2016 at 12:21

Thanks Hannibal, I will try those. But in general, the port assignment is quite unclear, especially in relation to F407Discovery. 

As I've seen the PB8 is in CN5->D15 and PB9 is in CN5->D14.

I hope this does not mess up the other peripherals that I'm using.

Thanks again.

Posted on May 19, 2016 at 13:40

Hi,

You also an other alternative : (PD0, PD1). Yes, you should manage the used peripherals' pins in you project in way that you avoid concurrency.

-Hannibal-

Posted on May 19, 2016 at 18:00

But in general, the port assignment is quite unclear, especially in relation to F407Discovery. 

The board User Manual, and the part Data Sheet, do provide a sufficiently complete breakdown of the available pins, ports, and functionality. The peripherals are covered in the Reference Manual.

Posted on May 20, 2016 at 08:35

Hi Clive,

yes indeed they do. But as I've mentioned in my statement: ''in relation to F407'' that I've been previously working on. Where the ports and pins are corresponding to the onboard labels.

Thanks again for the help!