ChibiOS Free Embedded RTOS

Posted: **Mon Sep 26, 2016 2:51 pm**

Hello.

After a few days of fight with the F446 and USB stack, we found the following:

F446 has a different USB hardware then other F4 micros. F446 has a OTG core identical with F7 series. :shock:

After few changes in "defines" in the F7 manner now we have a success to enumarate the device. This is our progress for the moment.

So just to know - If you are using F446 - the USB must be threated like in F7!

Posted: **Mon Sep 26, 2016 2:53 pm**

Hi,
If I remember well this problem has been solved on trunk.

Posted: **Mon Sep 26, 2016 2:53 pm**

Hi,

Moving in the bug reports section.

Giovanni

Posted: **Mon Sep 26, 2016 2:56 pm**

Code: Select all

/*===========================================================================*/
/* STM32F446xx.                                                              */
/*===========================================================================*/
#if defined(STM32F446xx)
....

/* USB attributes.*/
#define STM32_OTG_STEPPING                  2
#define STM32_HAS_OTG1                      TRUE
#define STM32_HAS_OTG2                      TRUE

Indeed we introduced STM32_OTG_STEPPING to handle this differences. Can you confirm you are not using trunk?

Edit: take a look here.

Posted: **Tue Sep 27, 2016 11:16 am**

Sure, we are using official 16.1.5.

I will check the trunk, thanks.

ChibiOS Free Embedded RTOS

USB on STM32F446 issues

USB on STM32F446 issues

Re: USB on STM32F446 issues

Re: USB on STM32F446 issues

Re: USB on STM32F446 issues

Re: USB on STM32F446 issues