Hello there, sorry for not writing for so long. What would you recommend as the next step now? As I told Miguel privately, I was thinking of getting an STM32 evaluation board (they're really cheap, <15€ IIRC) and building the USB controller prototype. Once we have the STM32 reading all the values from the potentiometers, pushbuttons, etc. and reporting them over USB as a HID we would go ahead and design PCBs 2 and 3. How does this sound? Should we skip the eval board thing and go straight to designing the PCBs?

2015-09-23 19:44 GMT+02:00 Luke Kenneth Casson Leighton <lkcl@lkcl.net>:
On Wed, Sep 23, 2015 at 4:31 PM, GaCuest <gacuest@gmail.com> wrote:
> En 23 de septiembre de 2015 en 17:13:37, Luke Kenneth Casson Leighton (lkcl@lkcl.net) escrito:
>> On Wed, Sep 23, 2015 at 4:07 PM, GaCuest wrote:
>> > En 23 de septiembre de 2015 en 16:55:18, Luke Kenneth Casson Leighton (lkcl@lkcl.net)
>> escrito:
>> >> On Wed, Sep 23, 2015 at 2:59 PM, GaCuest wrote:
>> >>
>> >> > I’m using AirMail. It has plain text editing, but not line-wrap.
>> >> > I will do that manually.
>> >>
>> >> appreciated.
>> >>
>> >> > I updated the block diagram:
>> >> > http://rhombus-tech.net/community_ideas/games_console/news/pcb_block_diagram_updated2_23sep2015/
>> >> >
>> >> > Anything more to change?
>> >>
>> >> yes, one thing that's important: 1st USB is mandated to be >= speed
>> >> than 2nd USB. so you need to swap 1st USB with 2nd USB.
>> >>
>> >> reason: the STM32F is connected to the port that may end up being
>> >> 480mbit/sec and the USB Hub is connected to the port that may end up
>> >> being only 11mbit/sec.
>> >>
>> >> certainly, for the jz4775 CPU Card (which i am sending off very
>> >> shortly), it *DEFINITELY* has USB 2.0 for the 1st port and *ONLY* USB
>> >> 1.1 for the 2nd.
>> >>
>> >> and i am certainly not going to increase the cost of the jz4775 CPU
>> >> Card by an extra $2 worth of components to put in a USB2 Hub when the
>> >> SOC itself is only $2.50!!!
>> >>
>> >
>> > I think that you have not properly seen the block diagram.
>>
>> wiggle wiggle follow the lines with my finger pointing at the screen
>> this time... :)
>>
>> > The STM32 is connected to the second USB, the USB HUB is connected
>> > to the first USB.
>> >
>> > This right?
>>
>> yes! :)
>>
>
> Then, anything to change?

 no

> Is this right?:

 i did say yes

>  http://rhombus-tech.net/community_ideas/games_console/news/pcb_block_diagram_updated2_23sep2015/
>
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