ChibiOS Free Embedded RTOS

Thanks for you description.

It works perfectly.

I haven't really deep a deep dive in the code yet, but I was looking into NIL.

Does NIL support registering a thread with an event and then having a thread wait until an event was posted. For example, could I use the sdu driver with NIL.
I noticed events are a little bit different betwen NIL and RT ...

I agree that the RM is not clear about the change they made to the USB peripheral.
Sorry I forgot to mention that the USB RAM buffer is shared with the CAN memory. I knew this and did not implement it because I wasn't sure how you handled situations like this in ChibiOS.

Once again, thank you for ...

Sorry for the delay,

Here is some test code that should work for STM32F072-Discovery. When USB is working this example should enumerate as a USB mouse device and move the mouse back and forth.
Here are the steps I suggest for showing that a patch is needed to support USB on STM32[F|L]0 devices.

0 ...

We will have to have a USB application that works on the STM32F072 Discovery. After that I would like to see if the application runs without applying a specific patch. I believe it will not work.
I can give more detailed instructions later, either sometime today or tomorrow.

I have created my own ...

Hello,

Without this patch the F0 series USB won't work. I wonder if anyone on this forum has an STM32F072B-DISCOVERY to give you a second datapoint that this change needs to be made for the F0 series to support USB.

Unfortunately, the documentation shows this difference in a very subtle way and is ...

Giovanni,

Sorry about this extra #endif. I have know clue how it got pass my testing, yet alone compiling.

Thanks,
Michael

Makes sense. Although, I believe the new L0 series also has the new access mode.

By the way, I believe I kind of found a bug in the USBv1 driver. BTABLE is multiplied by 2, looking at the datasheet I do not know why this occurs. Anyways, it doesn't matter because currently BTABLE is defined to be 0 ...

Thanks for this open source project and working with me. Your easy to work with and make working with this project an enjoyable experience.

When the new #define flag is set to FALSE there should be no changes to existing products, but yes I understanding when changing existing code there is a risk ...

As for part "last byte for odd numbers" and checking for 2 3 4 with uint32:

To summarize what I have read from the ST reference manuals:
The USB data in ST parts is always 16 bits wide. This patch just accounts for the difference between how ST packs the data differently between modes(different ...