i just wanted to know the usage of SPI.h library of arduino while using external interrupts.
some sorts of code based explanation will be really helpful.
SPI has its own internal interrupts to let the code know when the incoming buffer is full and when the outgoing buffer is empty. External interrupts are not impacted, and are serviced when interrupt currently being addressed is done.
so will this internal interrupts have an impact on normal operation of SPI communication?