spi pins in nrf52840

RE: spi pins in nrf52840

Prasad A — Sun, 05 May 2024 08:11:32 GMT

Hi, I am a similar question. Can I use the above pins as QSPI in nrf52840dk board?

Another question regarding spi in the same board: for cs pin can I use any gpio pin apart from "standard drive, low frequency I/O only"?

RE: spi pins in nrf52840

Balu Varkala — Tue, 23 Jun 2020 12:35:58 GMT

Yes. I am planning to use QSPI

RE: spi pins in nrf52840

Balu Varkala — Tue, 23 Jun 2020 12:35:35 GMT

yes i am planning to use QSPI.

RE: spi pins in nrf52840

Jørgen Holmefjord — Tue, 23 Jun 2020 12:00:46 GMT

No issue, I was just asking since you only mention SPI is the original post, while the pin-connections indicate QSPI usage.

RE: spi pins in nrf52840

Balu Varkala — Tue, 23 Jun 2020 11:39:52 GMT

Yes. As of now am not planning to use QSPI.. if i use is there any issues?

RE: spi pins in nrf52840

Jørgen Holmefjord — Tue, 23 Jun 2020 11:23:09 GMT

Yes, those are not marked as "Standard drive, low frequency I/O only". Are you planning to use QSPI?

RE: spi pins in nrf52840

Balu Varkala — Tue, 23 Jun 2020 11:20:27 GMT

Hello,

Thank you..!

Should i use below signals as SPI signal .

P0.17 -- CS

P0.26 -- SCK

P0.20 -- DIO0/SI

P0.04 -- DIO1

P0.22 -- DIO2

P0.06 -- DIO3

Kindly suggest ASAP.

RE: spi pins in nrf52840

Jørgen Holmefjord — Tue, 23 Jun 2020 10:34:26 GMT

Hi,

Any GPIO can be used, but you should avoid the pins marked with "Standard drive, low frequency I/O only" in the Pin assignments specifications.

Best regards,
Jørgen