nrf52 high data rate

RE: nrf52 high data rate

gkovelman_tap — Mon, 17 Jul 2017 13:12:45 GMT

Sounds like TX at 2/4/8 Mbps is possible. I'll also play with the TWI frequency. I'll see what's the actual limit.

RE: nrf52 high data rate

Turbo J — Mon, 17 Jul 2017 12:19:29 GMT

For UART, see: this answer here

RE: nrf52 high data rate

Turbo J — Mon, 17 Jul 2017 12:08:15 GMT

The 1 MHz I²C hardware uses faster transmitters with current souces. These are not present in NRF5x chips.

RE: nrf52 high data rate

endnode — Mon, 17 Jul 2017 11:17:49 GMT

To make it longer: the only trick which seems to be possible is to go with TWIM->FREQUENCY and UARTE->BAUDRATE registers outside of their spec. The values are not "locked" in the controller (at least according to specification here and here) however it's very unlikely that they would be stable so much out of tested and design range. Even if you get lucky on one of 5/10/100 chips to get it significantly higher then 400kHz/1MHz you won't be able to keep this across large batch of chips. There were similar questions on this forum, see what Nordic team says...

RE: nrf52 high data rate

gkovelman_tap — Mon, 17 Jul 2017 11:09:48 GMT

Cool. 10Chars

RE: nrf52 high data rate

endnode — Mon, 17 Jul 2017 11:05:43 GMT

No and No.