yiancar 619d2ffcb6 Correct ARM STM32 I2C frequency. (#7080) ...

It was beleaved that this setting result in a 400Khz I2C bus.

This was incorrect, actual frequency measure with a logic analyzer was around 150Khz.

This is derived from the excel sheet linked in the .h file.
Also confirmed with the ST IDE.

2020-01-09 08:57:11 +09:00

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