Hi Matias,
On 9/11/20, Matias N. wrote:
> A bit related but maybe not so much: as you may have seen in my workshop
> presentation, I'm working on a tiny BLE mouse using BlackBerry trackpad
> sensor,
> based on the nRF52832. As part of this, I built a Feather Wing format board
> just for the senso
But yeah all the touch screen and backlight logic is behind the
STMP811 touch/gpio expander.
https://www.solder.party/docs/keyboard-featherwing/schematics_keyboard_featherwing.png
That shouldn't be too bad. I wrote the STMPE811 driver. It is a
multi-function chip and does GPIO, ADC,
ey dropped the SAM20 in there to kind of hide
the IO expander logic behind a i2c keyboard interface, so it might
actually be easier in some ways. At least via polling the FIFO to
start with.
https://www.solder.party/docs/keyboard-featherwing/schematics_keyboard_featherwing_keyboard.png
But yeah all the
A bit related but maybe not so much: as you may have seen in my workshop
presentation, I'm working on a tiny BLE mouse using BlackBerry trackpad sensor,
based on the nRF52832. As part of this, I built a Feather Wing format board
just for the sensor:
https://twitter.com/protobits/status/13037335349
I actually just got one of these FeatherWing boards. I was thinking
about using it with the nRF52 Bluefruit LE - nRF52832. Seemed like a
cool way to add a UX for interacting with the bluetooth stuff.
Cool! That could be useful if you need a complete handheld UI. There are
already an ILI93
> Are you still working a the Giant Board? This would be a good companion
> board:
> https://www.tindie.com/products/arturo182/keyboard-featherwing-qwerty-keyboard-26-lcd/
>
> There is a "Solder Party" channel forum on discord.com. Groguard
> discusses using the Giant
Matias, Greg,
Ok, I got it to boot to NSH. For some reason it doesn't work every time, so
I need to track that down. Sometimes it goes into a stack dump. But when it
does boot, it seems reliable.
Code is here for now:
https://github.com/starcat-io/incubator-nuttx/tree/feature/sama5d27-giantboard
Matias,
Thanks for the help. It was an incorrect master clock setting for the
board. I updated the Giant Board clock settings, and while I still can't
fully boot NuttX, but I am getting some logging lines and stack traces on
the serial port now. No garbage. :)
-adam
On Wed, Aug 19, 2020 at 10:
Matias,
Thanks, I have a logic analyzer and will try that when I pick it up again.
The weird thing about this is that I can use U-Boot on the serial console
on the Giant Board – it knows how to use the UART correctly. But NuttX
doesn't.
Ah, that might be it– the two boards run at different freque
When I had this problem of the serial giving garbage I used a logic analyzer
with pulseview and then try to hunt for a baud rate on the uart protocol
decoder which would give a valid interpretation. Often I found the rate to be a
multiple of the expected one which helped me figure out what was s
t; On Wed, Aug 19, 2020 at 10:33 AM Matias N. wrote:
>>
>>> Just looked up the Giant Board. Seems also a good target for Linux+NuttX
>>> framework presented at the workshop.
>>>
>>> On Wed, Aug 19, 2020, at 12:36, Gregory Nutt wrote:
>>> > Adam,
>> On Wed, Aug 19, 2020, at 12:36, Gregory Nutt wrote:
>> > Adam,
>> >
>> > Are you still working a the Giant Board? This would be a good
>> companion
>> > board:
>> >
>> https://www.tindie.com/products/arturo182/keyboard-featherwing-qwerty-key
rget for Linux+NuttX
> framework presented at the workshop.
>
> On Wed, Aug 19, 2020, at 12:36, Gregory Nutt wrote:
> > Adam,
> >
> > Are you still working a the Giant Board? This would be a good companion
> > board:
> >
> https://www.tindie.com/produc
ie.com/products/arturo182/keyboard-featherwing-qwerty-keyboard-26-lcd/
>
> There is a "Solder Party" channel forum on discord.com. Groguard
> discusses using the Giant Boards with the keyboard FeatherWing there.
>
> That could be a lot of fun. I am considering one myself,
Adam,
Are you still working a the Giant Board? This would be a good companion
board:
https://www.tindie.com/products/arturo182/keyboard-featherwing-qwerty-keyboard-26-lcd/
There is a "Solder Party" channel forum on discord.com. Groguard
discusses using the Giant Boards with th
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