Your question is very poorly written. I think you are asking if you can make a combinational SPI interface to communicate with an RF module that has a SPI interface.
No, SPI requires a clock (SCLK) along with other signals that have timing relationships to that clock. If you don't have any clocks then you need to start over with the architectural design.
You may like to check existing SPI code ( in verilog or VHDL as the case may be) and see how you can use it to interface with the RF nodule. SPI interface comes under sequential circuits and a combinational only device will not work.
You may like to check existing SPI code ( in verilog or VHDL as the case may be) and see how you can use it to interface with the RF nodule. SPI interface comes under sequential circuits and a combinational only device will not work.
yes I got your idea, what I'm planing to design is a circuit that is connected to an RF transceiver, and that acts like a mirror. which means when RF module receives a signal, the circuit must compare it to a stored signal, then send back the same signal. I want it to be fast that's why I chose it to be combinationnal, I don't want to use any clock that would create a delay for me, but I came to realize that most of the RF module have SPI as an interface, so I must use the clock.
if I insert the SPI code (from opencores) that has a lot of Flip-Flops that would really decrease the speed of my intended application.