Arduino for STM32

Miguel wrote: Tue Dec 03, 2024 8:19 am I have no idea what ''stm32_i2s' is not a namespace-name' does mean, since is defined at the begining of the 'stm32-i2s.cpp'.

PS: OK, now the code compiles, if I make this code work I will mark it as 'solved'.

Does error disappaer after restarting ArduinoIDE?

I never made something with I2s on STM32.
Do you know this: https://github.com/pschatzmann/stm32-i2s ?
Do you connect SD-card on ESP32 as SPI or SD-MMC?

---> https://github.com/stm32duino/Arduino_C ... nt-(board)

Where I'm now stuck is the I2C for OLED control . I've been reading many different post around the subject, but could not find any solution simple enough to run my screen as easily as if it was with a UNO or ESP32 board.
If you're using ArduinoIDE and STM32duino, methods of graphic libraries ...

I don't used registers directly. So I can't say, if your example works or not. Have you tried it?

My code is like this:

#include <STM32RTC.h>
#include <stm32g0xx_hal_rcc_ex.h>

uint8_t ret;
STM32RTC& rtc = STM32RTC::getInstance();

void setup() {
rtc.setClockSource(STM32RTC::LSE_CLOCK);
rtc ...

k008 wrote: Sun Oct 06, 2024 6:59 am But what is the correct way to do calibration if you use STM32RTC.h?

STM32RTC-libaray can't do it by itself.

You have to use getHandle() and then use this handle in HAL_RTCEx_SetSmoothCalib().

A crystal with 20 ppm should have a deviation of 1,7 s per day. May be more, if board is not working at room temperature.
You are not the first here with LSE problems on a STM32F103 ...

1. Sure you activated LSE?
2. May be crystal is damaged?
3. Stray capacity can have an effect. I would guess ...

BTW:
I don't think it's the reason for the problem. But if you want to use a BlackPill, you should select a BlackPill and not a generic F411.

I am using WeActStudio.MiniDebugger ST-LINK V2.1.
Yes it has flexible wires ...

I have impression, that MiniDebugger is getting really warm under shrinking tube when a STM32Hxxx is connected.
First upload works, after a while running the sketch a new upload don't work, second try don't work ...