nRF52840 - Using several serial peripherals at the same time, for my specific projects

[Abomin3v3l]

Hello.

I have 2 designs of PCB to make, I have their schematics almost complete. Both use the nRF52840.

My doubt is if for each PCB, if I will be able to use at the same time all the communication peripherals.

PCB 1:

- QSPI
- 1x 4-wire SPI
- 2x I2C
- 2x UART (TX/RX only)

PCB 2:

- QSPI
- 1x 4-wire SPI
- 2x I2C
- 1x UART (TX/RX only)
- 1x UART (TX/RX/RTS/CTS)

Regards.

[Kenneth]

Hello,

Please take a look at the Instantiation table in the datasheet:
https://docs.nordicsemi.com/bundle/ps_nrf52840/page/memory.html#ariaid-title5 

So peripherals that share ID/Base address can only have one function, so for instance you can find that 3/0x40003000 means that the specific hardware can either be an SPI0, TWI0 or UART0 (not a combination of those 3).

It may help to know that SPIM3 don't share any ID/Base address with other.

Kenneth

[Abomin3v3l]

Thank you, Kenneth.

As I see, I can do it.

For example:

ID = Peripheral

3 = TWIM0
4 = TWIM1
2 = UARTE0
40 = UARTE1
47 = SPIM3
41 = QSPI

Because I need QSPI, 1x SPI master, 2x I2C master, 2x UART.

Regards.