How to overclock TWI Manager past 400 KHz

RE: How to overclock TWI Manager past 400 KHz

Simonr — Fri, 16 Aug 2019 07:00:57 GMT

You can try setting the frequency register to a higher value than it is. Please see the TWI_FREQUENCY_FREQUENCY defines in the nrf52840_bitfields.h header in the SDK (lines 13966-13971). Please note that I haven't tested this, so I don't know the outcome. Please see this thread for more info on the baud rate generator. All peripherals use the same one, so don't mind it saying UART.

Best regards,

Simon

RE: How to overclock TWI Manager past 400 KHz

arjun123 — Thu, 15 Aug 2019 14:48:49 GMT

Would you be able to lead us in any direction to try increasing the TWI rate even though it may not work?

RE: How to overclock TWI Manager past 400 KHz

Simonr — Thu, 15 Aug 2019 08:12:51 GMT

Hi Arjun

I'm sorry, but we do not recommend nor support using the TWI at a faster rate than 400kHz. The chip has not been tested for the usage of higher frequencies than this, so there's no telling what will happen if you choose to do so.

Best regards,

Simon