Hello guys,
I am having problems setting the correct I2C clock on the STM32G4xx in Master Mode.
The example configuration from the data sheet for 400 kHz at 16 MHz f_I2CCLK generates 432 kHz (RM0440-Rev4: P1892 Table 381). I use the __LL_I2C_CONVERT_TIMINGS() function, to convert the values from Datasheet.
An unchanged example from the CubeIDE also generates an incorrect frequency on my Nucleoboard. (CubeIDE version 1.15.0)
By trial and error I have now managed to generate almost exactly 400 kHz. In the TIMINGR I write 0x00100716, analogfilter enabled and digitalfilter disabled. Unfortunately I cannot reproduce this number with the information in the data sheet. So I can't get through the code review.
I was able to find a configuration tool for other controllers, is there such a tool for the STM32G4xx?
Can someone please help me to calculate the I2C timing correctly and comprehensibly?
