boxxofrobots
Well-known member
I'm looking at an i2c dac chip that works up to 3.4MHz on its clock. Does the teensy 4.1 support such high speed operation on its i2c?
max clock speed on teensy 4.1 i2c
- Thread starter boxxofrobots
- Start date
PaulStoffregen
Well-known member
The Wire library definitely does not support 3.4 MHz.
This speed isn't just a matter of clocking faster. It involves a special protocol. There is currently no software support.
As far as I know from NXP's documentation, the hardware is theoretically supposed to be capable. It's only a small matter of programming! (currently no plans to add this)
Oh, and special constant current pullup circuitry might be needed instead of ordinary cheap resistors. Maybe?
This speed isn't just a matter of clocking faster. It involves a special protocol. There is currently no software support.
As far as I know from NXP's documentation, the hardware is theoretically supposed to be capable. It's only a small matter of programming! (currently no plans to add this)
Oh, and special constant current pullup circuitry might be needed instead of ordinary cheap resistors. Maybe?