MicroPython Forum (Archive)

Initial value of SPI3 baud-rate is 100MHz. As I know, SPI baud-rate is changed when baud-rate value set when SPI initialization. But, Baud-rate is never changed and fixed with 100MHz. What am I missing? >>> import pyb >>> spi = pyb.SPI(3, pyb.SPI.MASTER, baudrate=2000000, polarity=1, phase=0) >>> sp...

Thanks it works.

shaoziyang wrote: ↑

Wed Jun 17, 2020 1:41 am

You need set EWUP1 bit in registry PWR_CR3.

Code: Select all

import stm

A0 = Pin('A0', Pin.IN, pull=Pin.PULL_DOWN) 
stm.mem32[stm.PWR+0x08] |= 1

How can I make STM32L476 wake-up from deepsleep by pull-up the PA0 port.

I think additional register setting need like a pyboard (https://github.com/micropython/micropython/issues/3834).

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