i2c frequency on rpi 3b v1.2

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i2c frequency on rpi 3b v1.2

Postby flexbex » Tue Mar 21, 2023 4:18 pm

Hi I try to figure out how I might change the i2c freuqency. At default it's set to 100khz. But I'd like to set it to 400k any leads for that?

I tried allready setting it in

/boot/config.txt

and

sudo fdtput -t u /boot/bcm2710-rpi-3-b.dtb /soc/i2c@7e804000 clock-frequency 400000

both where recommended somewhere else. But it didn't work
flexbex
 
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