fpga: lib: add handshake to replace FIFO for ctrlport CDC

The clock crossing of the ctrlport used FIFOs to transfer requests and responses
between clock domains. This commit adds a handshake based on the pulse
synchronizer to reduce the resource usage for ctrlport clock domain crossing.
Data is stored in a single register while the pulse synchronizer handles the
signaling of valid flags.


Original-commit: 2c2bb3a0b7269dcbd8b5933ce1c0c29ca17f599d

This commit is contained in:

Max Köhler

2020-08-13 07:46:14 -05:00

committed by

Wade Fife

parent c91315d857

commit ec70691e84

3 changed files with 143 additions and 48 deletions

									
										lib/control/Makefile.srcs
									
		+1
		
												View File
												
				@@ -59,4 +59,5 @@ map/cam.v \

				map/kv_map.v \

				map/axis_muxed_kv_map.v \

				axil_ctrlport_master.v\

				handshake.v\

				))