[Arm-netbook] stm32f072 usb firmware

[Luke Kenneth Casson Leighton]

On Sun, Oct 18, 2015 at 12:13 PM, Peter Bouda <peter at ubrew.it> wrote:
>
>>> Any ideas what I could have done wrong?
>>
>>   it's not amazingly hard, this, there's not actually a lot to do, so
>> the number of things wrong will be very small.
>>
>>    can you take a picture and make it available online, also compare
>> against the photo here:
>>
>> http://rhombus-tech.net/community_ideas/laptop_15in/news/PCB2_prototype_progress_14oct2015/
>>
>>   btw if you haven't re-flashed the firmware at all, then by default it
>> will come up with LD2 blinking happily.  check first that that's what
>> happens by returning the U5V jumper and plugging in a mini-usb cable.
>>
>>   btw you should *NOT* plug in a mini-usb cable at the same time as the
>> USB cable across PA12 and PA11!
>>
>>   also make sure BOOT0 is shorted to E5V *before* pressing reset, then
>> hold reset for at least 0.5 seconds, *then* release reset, then
>> release BOOT0 screwdriver-short.
>
>
> hey, I got it finally. I think I made something wrong with the screwdriver
> (noob!), but after some more attempts it worked and I got the miniblink
> working.

 yaaaa sounds familiar :)

> I will go on with the usb-rewrite stuff now, and see how it works.

 you should actually be able to use libopencm3 master, now, because
some usb commits for stm32f072 were made last week.

l.