MicroPython Forum (Archive)

Thanks very much for the kind responses and help. I am eagerly awaiting delivery of the boards, and can't wait to try them out1

Hi, I have no experience building firmware files...I have been fortunate to find ready made MicroPython firmware for all the boards I've used. So I have a newbie question - if I use the nucleo board firmware for the STM32F411, will it be at all useable with the black pill boards? Or is this just a f...

Thank you very much! Clear and accurate description, worked first time out.

Thanks for the encouragement...actually, just rebooting my pc was the answer. I should have known

Odyssey ended in my bricking the board. With boot to 3.3 jumper installed, blue and red LEDs are on, but does not show up in DfuSe or as STM32 port in device manager. No worries, I've got a few more boards, but would love to get this one back working again.

When I load pybv11-20170611-v1.9.1.dfu, board boots up to 1.9.1, but when I follow this by loading pybv11-20180205-v1.9.3-278-gcc92c057.dfu, it reverts to 1.8.7. With pybv10-20171101-v1.9.3.dfu, the serial port doesn't load in my device manager, nor does it with the 1.9.2. With 1.9.2 I get a message...

I am using PyBoard V1.1, with v1.8.7 firmware. I tried to update to 1.9.3-2 with dfu file, following instructions for DfuSeDemo, windows 10. File transferred properly, download verified, but when I rebood the PyBoard, it still comes up with 1.8.7. Tried rebooting in all possible modes, still no luck...

Thanks. I'm new to this, so will take some doing!

I am trying to get a waveform on one dac channel, and a sync pulse on the second. The two should be synchronized to about 1 microsecond or so. Here's the code: dac1 = DAC(1) dac1.write_timed(buf_s,pyb.Timer(6, freq = fr* (l_buf)), mode=DAC.CIRCULAR) dac2 = DAC(2) dac2.write_timed(buf_t,pyb.Timer(7, ...

I have the same problem. Made the change on line 89 from:
from _collections import namedtuple
to:
from ucollections import namedtuple

I still get the error message: AttributeError: 'module' object has no attribute 'open'