Search found 16 matches

by RWLTOK
Tue May 21, 2019 2:08 am
Forum: MicroPython pyboard
Topic: frequency counter
Replies: 6
Views: 2036

Re: frequency counter

Dave,

Thanks for the suggestions. I will report back on my progress. Copy the 32-bit timer. Since I am measuring a known frequency and just tweaking to get better that 5ppm, a 16-bit would work, but 32-bit would be more robust and allow for testing with unknown frequencies.

Take care,

Rich
by RWLTOK
Sun May 12, 2019 9:25 pm
Forum: MicroPython pyboard
Topic: frequency counter
Replies: 6
Views: 2036

Re: frequency counter

Dave, I am doing something similar. My application is crystal calibration of a BLE radio. I can set up a 6MHz output on one of the radio IO pins to input to a pyboard as a clock input, hence, using the PYBOARD as a frequency counter gated by a one pulse per second (1pps) output from a GPS receiver. ...
by RWLTOK
Mon Apr 08, 2019 12:20 am
Forum: Pyboard D-series
Topic: Where's the source?
Replies: 1
Views: 147

Where's the source?

I would like to build MP for the Pyboard D. I have lots of code that I can only run if I "freeze" it as well as small changes I need to make for my environment. I don't see it in the main MP repo. Is it in plain sight or not yet available?

Thanks
by RWLTOK
Sat Sep 22, 2018 10:42 pm
Forum: Other Boards
Topic: Porting to Nordic Semiconductor nRF52
Replies: 45
Views: 20907

NFC Tag, was Re: Porting to Nordic Semiconductor nRF52

Does anyone know if there has been any work in exposing the NFC type 4 tag interface of the nRF528240 within micropython?

Thanks

Rich
by RWLTOK
Thu Aug 09, 2018 12:07 am
Forum: Other Boards
Topic: Anyone working on a port to Nordics PCA10059 Dongle?
Replies: 11
Views: 1472

Re: Anyone working on a port to Nordics PCA10059 Dongle?

If anyone else views this thread and can make a suggestion, I am all ears. I copied the nrf/boards/pca10056 directory and made a pca10059 directory. I can build the package. Next, I ran: nrfutil pkg generate --debug-mode --hw-version 52 --sd-req 0xA9 --application build-pca10059/firmware.hex build-p...
by RWLTOK
Sat Aug 04, 2018 4:32 pm
Forum: Other Boards
Topic: Anyone working on a port to Nordics PCA10059 Dongle?
Replies: 11
Views: 1472

Re: Anyone working on a port to Nordics PCA10059 Dongle?

NM. I started from scratch, followed the instructions again and all the build steps worked. Trying to target the PCA10059 board now. I think I started from an old clone.

Thanks to you both for answering my question.

Rich
by RWLTOK
Sat Aug 04, 2018 2:48 pm
Forum: Other Boards
Topic: Anyone working on a port to Nordics PCA10059 Dongle?
Replies: 11
Views: 1472

Re: Anyone working on a port to Nordics PCA10059 Dongle?

Oh well. My boards came, but I am dead ending on how to build it. I followed the build instructions you provided a link to Peter. There is stuff missing, because when I go to build (following the example), I get fatal errors indicating nrfx.h is not available. I downloaded the drivers. Any suggestio...
by RWLTOK
Wed Aug 01, 2018 1:53 am
Forum: Other Boards
Topic: Anyone working on a port to Nordics PCA10059 Dongle?
Replies: 11
Views: 1472

Re: Anyone working on a port to Nordics PCA10059 Dongle?

I ordered both PCA10056 and PCA10059 boards so maybe I can see what needs to be done when the boards arrive. The nice thing about the PCA10059 is that it takes DFU image downloads over USB like the PYBoards.

Rich
by RWLTOK
Wed Aug 01, 2018 1:50 am
Forum: Other Boards
Topic: Anyone working on a port to Nordics PCA10059 Dongle?
Replies: 11
Views: 1472

Re: Anyone working on a port to Nordics PCA10059 Dongle?

Hmm. I only see 10056. There is not a directory in the boards folder. I'll keep looking.
by RWLTOK
Sun Jul 29, 2018 8:24 pm
Forum: Other Boards
Topic: Anyone working on a port to Nordics PCA10059 Dongle?
Replies: 11
Views: 1472

Anyone working on a port to Nordics PCA10059 Dongle?

Is anyone working on a port to Nordic's PCA10059 Dongle? Looks like a great platform for developing Micropython BLE applications. http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52%2Fdita%2Fnrf52%2Fdevelopment%2Fnrf52840_dongle%2Fkit_hw_content.html&resultof=%22%50%43%41...