[solved] Teensy 4.1 call setClock AFTER mcp.begin to increase SCL-Cock-frequency

[StefanL38]

@gfvalvo

The processor on the T4.1 does support it, but it appears to require different configuration of the various control registers. So, you should start by reading the I2C chapter of the processor's datasheet. Then open up the T4.1's implementation of the Wire library and see if it accommodates High-Speed Mode.

Somewhere I have read a posting that the the frequencies 100 kHz, 400 kHz and 1,7 MHz are implenented in the wire-library for the I2C-bus.

If this is right why did they not implement it properly?
best regards Stefan