Interrupt driven SPI - IRQ pin for NRF52832

[Pradeep Chl]

I am trying to make communication between STM32F407ZET6 and NRF52832 chipsets using an SPI interface.

One is master and another is slave. If I take NRF chip as master, I should have a way to let the data come to STM32 using SPI interrupt. I cannot keep checking everytime at the STM32 whether data has come or not.

Is there a pin on NRF52832 that tells that radio data has arrived to it, So that I can use it to tell STM32 and read the SPI data.

When I worked with NRF24L01+ chip, it has an IRQ pin that tells if radio packets have come to it. I am looking for a similar pin configuration with NRF52832.

Thanks,

[awneil]

But, surely, if the nRF chip is the master - then this is exactly what the Slave Select signal does??

[Pradeep Chl]

Yes, I think SS can be used as IRQ pin.

Thanks.

[awneil]

My point is that you don't need an IRQ at all: it is the SS which starts the peripheral hardware receiving automatically - no need for anything else.