Re: Keyboard FeatherWing

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

Re: Keyboard FeatherWing

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, Touch,

Re: Keyboard FeatherWing

On Fri, Sep 11, 2020 at 10:24 AM Gregory Nutt wrote: > > > > 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 us

Re: Keyboard FeatherWing

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

Re: Keyboard FeatherWing

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

Re: Keyboard FeatherWing

Greg, 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. --Brennan On Wed, Aug 19, 2020 at 8:37 AM Gregory Nutt wrote: > > Adam, > > Are you sti

Re: Keyboard FeatherWing

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

Re: Keyboard FeatherWing

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:

Re: Keyboard FeatherWing

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

Re: Keyboard FeatherWing

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

Re: Keyboard FeatherWing

I worked on the Giant Board some more today. Its lack of JTAG debugging is maddening. I can't get the console UART1 to work, so I'm not sure how to proceed. I'm just guessing, and swapping SD cards a lot. Urgh. I think it has something to do with the device tree that the Giant Board uses with U-Bo

Re: Keyboard FeatherWing

Greg, That keyboard/screen combo looks pretty cool. I'll see if I can come up with a use for it. :) -adam On Wed, Aug 19, 2020 at 10:52 AM Adam Feuer wrote: > Greg, Matias, > > Yes, I'm still working on NuttX for Giant Board, and the ACME RoadRunner > ...

Re: Keyboard FeatherWing

Greg, Matias, Yes, I'm still working on NuttX for Giant Board, and the ACME RoadRunner ... should have something to show soon. -adam 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+Nut

Re: Keyboard FeatherWing

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, > > Are you still working a the Giant Board? This would be a good companion > board: > https://www.tindie.com/products/artu