Establishing SPI between XIAO nrf52840 and Arduino nano

[PJ_Glasso]

Hi there,
This was a good thread I have referred to in the past.

XIAO SPI Speed slower than a UNO

“SPI.h” and “SPI.cpp” are located at C:\Users\xxxxxxxxxxxx\AppData\Local\Arduino15\packages\Seeeduino\hardware\samd\1.8.3\libraries\SPI “SPI.h” should be editable by notepad.exe. Find and change the following location around line 50. #if defined(__SAMD51__) // SAMD51 has configurable MAX_SPI, else use peripheral clock default. // Update: changing MAX_SPI via compiler flags is DEPRECATED, because // this affects ALL SPI peripherals including some that should NOT be // changed (e.g. a…

HTH
GL PJ