Search found 50 matches

by badi
Tue Jul 02, 2019 4:56 am
Forum: Pyboard D-series
Topic: Availability of F723 Board
Replies: 1
Views: 281

Availability of F723 Board

Hello

The F723 is currently out of stock. When will there be a new batch?

Greetings
Tobias
by badi
Thu Jul 26, 2018 8:50 am
Forum: Development of MicroPython
Topic: Debug build of libm_dbl fails (missing copysign)
Replies: 0
Views: 399

Debug build of libm_dbl fails (missing copysign)

Hi I was playing around with the x7 ports for STM32. I tried to debug on my Nucleo H743 board so I ssued the command: make BOARD=NUCLEO_H743ZI DEBUG=1 -j4 which resulted (after deactivate the MICROPY_HW_HAS_SDCARD #define in mpconfigboard.h) in the error: build-NUCLEO_H743ZI/py/objfloat.o: In functi...
by badi
Fri May 18, 2018 2:56 pm
Forum: Other Boards
Topic: [STM32L496] Building firmware for a new board
Replies: 10
Views: 3977

Re: [STM32L496] Building firmware for a new board

Hi there
The board is now supported in MASTER. :D
I am looking for feedback.
by badi
Sun Apr 29, 2018 2:53 pm
Forum: Other Boards
Topic: [STM32L496] Building firmware for a new board
Replies: 10
Views: 3977

Re: [STM32L496] Building firmware for a new board

See PR #3745
Looking forward to test results and feedback.
by badi
Thu Jan 04, 2018 12:04 pm
Forum: Other Boards
Topic: STM32F407 Disc: ADC value not reaching 4095
Replies: 2
Views: 640

Re: STM32F407 Disc: ADC value not reaching 4095

Running your script on my STM32F407G-disc and connecting the PA0 to 3V works and gives me the value 4095. As VREF+ is - more or less - connected to VDD (~2.95V) I assume that you only connected 2.5 V to PA0?
by badi
Sun Dec 10, 2017 2:05 pm
Forum: Other Boards
Topic: [STM32L476DISCO] RTC not ticking
Replies: 5
Views: 1616

Re: [STM32L476DISCO] RTC not ticking

The #define fix does not work on my board. However after a longer debug session I discovered, that calling the init() from MicroPython on the RTC starts the clock - which is not needed on the F4 - even without the #define in the header file. If you look on the clock-tree of the L4 (eg. CubeMx or ref...
by badi
Sat Oct 29, 2016 12:14 pm
Forum: Other Boards
Topic: Porting to STM32L476Discovery/LimiFrog
Replies: 44
Views: 18814

Re: Porting to STM32L476Discovery/LimiFrog

I moved the stuff in a new, more general repo:
https://github.com/tobbad/micropython_lib
by badi
Sun Aug 14, 2016 2:08 pm
Forum: Other Boards
Topic: Porting to STM32L476Discovery/LimiFrog
Replies: 44
Views: 18814

Re: Porting to STM32L476Discovery/LimiFrog

Have a look at the STM32L476-discovery design:
http://www.st.com/content/st_com/en/pro ... overy.html
Use it as starting point for your design.
by badi
Fri Aug 12, 2016 7:49 am
Forum: Other Boards
Topic: Porting to STM32L476Discovery/LimiFrog
Replies: 44
Views: 18814

Re: Porting to STM32L476Discovery/LimiFrog

@bobricius: The presentation you mentions is from September 2014 and discusses USB clock recovery on F0/L0 done in a way as @marfis described. BTW there is an application note by NXP (AN4905) describing crystall less operation on Kinetis MCUs. Further in the Marketing presentation you mention they s...
by badi
Thu Aug 11, 2016 9:38 am
Forum: Other Boards
Topic: Porting to STM32L476Discovery/LimiFrog
Replies: 44
Views: 18814

Re: Porting to STM32L476Discovery/LimiFrog

Clock for USB: On STM32L4-Disco I configured the clock in the "Hardware auto calibration with LSE (PLL-mode)" as described in AN4555 of STM. In this mode the external 32768 crystal is used with a pll to produce via MSI a clock accurate enough for USB *Full Speed*. See as well the STM32L4 reference m...