Search found 172 matches

by marfis
Thu Feb 14, 2019 12:08 pm
Forum: Other Boards
Topic: Where can I see the internal reference buffer settings for STM32 in micropython?
Replies: 1
Views: 75

Re: Where can I see the internal reference buffer settings for STM32 in micropython?

you can always check the HW registers... e.g. stm.mem32[stm.VREFBUF]

assigning 5 for example activates the 2.5v reference
by marfis
Thu Jan 03, 2019 2:35 am
Forum: Other Boards
Topic: NRF52: NFC support?
Replies: 2
Views: 244

Re: NRF52: NFC support?

thanks for the reply. What if have figured out so far is that nordic has updated their nrfx lib with nfc support. And with some minor mods i was able to compile it with micropython (static assert macros must be defined). Where I‘m stuck at the moment is how to use the different nrfx nfc functions - ...
by marfis
Thu Dec 20, 2018 6:57 am
Forum: Programs, Libraries and Tools
Topic: BMI160 9DOF IMU with pyboardV11
Replies: 7
Views: 262

Re: BMI160 9DOF IMU with pyboardV11

Do you mean with the bosch sensor? No I cant give recommendations there. The SenseHat though is great value for getting things to work quickly. It may be a bit big though. I‘m not sure if the lsm9ds1 sensor from ST on the SenseHat is a bit outdated now since the board has been around for some time. ...
by marfis
Wed Dec 19, 2018 4:57 pm
Forum: Programs, Libraries and Tools
Topic: BMI160 9DOF IMU with pyboardV11
Replies: 7
Views: 262

Re: BMI160 9DOF IMU with pyboardV11

I used the 9DOF sensor on the SenseHat and managed to use it together with peters fusion library that you have linked.

viewtopic.php?f=5&t=1693
by marfis
Fri Nov 16, 2018 3:51 pm
Forum: Other Boards
Topic: NRF52: NFC support?
Replies: 2
Views: 244

NRF52: NFC support?

I wonder if there is some work being done on the NFC support for the nRF52. Other users seems to have asked the same questions so I thought I open a separate topic.

I'm willing to join or help on this issue but need some pointers within the nRF SDK on where / how a possible integration could be done.
by marfis
Fri Nov 16, 2018 3:31 pm
Forum: Other Boards
Topic: [nRF52] How do I increase the amount of flash allocated to micropython's micro file system?
Replies: 7
Views: 553

Re: [nRF52] How do I increase the amount of flash allocated to micropython's micro file system?

@c45713 The the experiements it was basically found that FATFS on internal flash used a bit to much in overhead, at least for nrf51 and in practice also for nrf52. The findings were that 50 pages had to be reserved in order to even make the FATFS structures, then the file storage came on top of this...
by marfis
Thu Nov 08, 2018 5:17 am
Forum: Hardware Projects
Topic: BrainPad running MicroPython
Replies: 4
Views: 386

Re: BrainPad running MicroPython

there is the mboot bootloader module in the stm32 port, from damien https://github.com/micropython/micropython/tree/master/ports/stm32/mboot basically implements DFU over USB and I2C, with support to write external SPI chips. I think he might use this one in his upcoming new pyboard devices, thats w...
by marfis
Mon Oct 29, 2018 5:04 am
Forum: Other Boards
Topic: [nRF52] How to get rshell to work with an nRF52?
Replies: 28
Views: 906

Re: [nRF52] How to get rshell to work with an nRF52?

What I‘ve figured is that the nRF port has the micro:bit FS enabled as default which only supports flat file hirarchies (no directories). Also, I see that os.listdir(‚.‘) reports an error about an argument given... both of which might relate to the problems you see. There is a small section in the r...
by marfis
Tue Oct 23, 2018 4:16 am
Forum: Other Boards
Topic: [nRF52] Here is tested and working "proprietary" radio demo code
Replies: 10
Views: 453

Re: [nRF52] Here is tested and working "proprietary" radio demo code

It doesn't rely upon nor use softdevice.
What I meant to ask was that *if* the softdevice is included (in case you want to use standard Btle functionality too), doesn‘t it interfere with your code (because you are directly manipulating hw registers)?
by marfis
Mon Oct 22, 2018 4:46 am
Forum: Other Boards
Topic: [nRF52] Here is tested and working "proprietary" radio demo code
Replies: 10
Views: 453

Re: [nRF2] Here is tested and working "proprietary" radio demo code

I‘m wondering how the softdevice coorporate with this... do you include it in your flash output at all?

And just a small thing: please rephrase the title of this thread so it reads correctly („nRF52“) - makes it a lot easier to search.