Search found 4 matches

by JacquesC
Sat Feb 23, 2019 9:46 am
Forum: Other Boards
Topic: Black STM32F407VE6 : access to the SD card and modify root files.
Replies: 4
Views: 341

Re: Black STM32F407VE6 : access to the SD card and modify root files.

I anderstand the problem But if I want to write to the SD card I ve got an error : >>> paste mode; Ctrl-C to cancel, Ctrl-D to finish === import pyb === import os === os.mount(pyb.SDCard(), '/sd') === os.chdir('/sd') === Traceback (most recent call last): File "<stdin>", line 3, in <module> Attribut...
by JacquesC
Fri Feb 22, 2019 8:25 pm
Forum: Other Boards
Topic: Black STM32F407VE6 : How to use the C libraries of a sensor ?
Replies: 2
Views: 249

Black STM32F407VE6 : How to use the C libraries of a sensor ?

Hello, I have to use sensors in I2C and others for which I have only libraries in C ++ (arduino). I know how to use them in C but I have to find a way to use them with micropython for my students. I thought I saw that it was possible to call libraries in C would there be a tutorial somewhere? Thank ...
by JacquesC
Fri Feb 22, 2019 8:19 pm
Forum: Other Boards
Topic: Black STM32F407VE6 : access to the SD card and modify root files.
Replies: 4
Views: 341

Black STM32F407VE6 : access to the SD card and modify root files.

Hello, For several days I have been blocking on several issues: I have to save the data of a sensor in a file on the SD card. 1 - How to access the SD card reader? 2 - On the same subject: how to modify files on the "partition" which contains Root.py and main.py. As for writing there is no problem b...
by JacquesC
Sun Feb 17, 2019 8:25 am
Forum: Other Boards
Topic: MCUDev Black STM32F407VET6 + STM32F407ZET6 dev boards
Replies: 134
Views: 40165

Re: Black STM32F407VET6 + STM32F407ZET6 dev boards

Thank you very much mcauser I spent two days finding the right files and installing the various tools (arm, st-util, ...) but I learned a lot of things ;-) The first tests I had compilation errors with the message "impossible to select the USB port" (something like that) when compiling usb.c, same m...