Arduino for STM32

I am more hardware related so i build my own G474 board.
No sensors, because i have never used the sensors of the development boards.
The "front" of the pcb is designed to mount it with two bracket at the front plate with USB, LEDs and network accessible.
RTC battery backup.
Connector for the ...

Thank you fpiSTM, that was what i am asking for but i did not found by myself.

ok, it was easier than i thought.

#define VREFBUF (*(volatile uint32_t *)(0x40010030)) // address of the VREF register

To use the internal Reverence:

Bit0 (ENVR) must be set to 1. That swithes to internal reference mode.
Bit1 (HIZ) must be set to 0. That connects the VREF+ pin internally with the ...

Yes, there are register(s) to set it, but if anybody made it before and got it running then it would be helpful.

I had the same problem with the 2.42" Display. With the small one (0.96") all worked fine, but with the bigger one it stopped some time or did'nt tranfer the graphic complete in SPI and I2C mode and with both librarys u8g2 and adafruit.
I added a 100uF directly at the display power and made a ...

Hello,

did anybody set the stm32G4xx to internal Vref of 2.048, 2.5 or 2.9 V or other STM32 with internal reference which can be used?

Thanks in advance

So the timer/counter in external clock mode 1 is running.
It seems that the register setting is a bit differnt compared to the F103.

Thanks for help.

So the first thing with the ADC is solved.
Today i began from scratch testing the ADC. Sometime it was working randomly, but after a power off the same configuration did not work. When it was on for a while it began to work :). Sounds like charging or leakage current.
The G474 has an internal ...

so all updated, same result, but it seems, that other used modules are influence the configuration.

I have tried it with the full code which includes webserver over w5500 spi modul, Oled over I2C and some other pins. That works with the old CPU but not with G474. using only the counter it works ...

Yes ce and re are quite the same for internal use but maybe some pins have different mappings but it seems working for you.

Meanwhile i have seen that there is a new version. i will test it and report.