[USRP-users] UHD4 Replay block on E31x

[Cédric Hannotier via USRP-users]

Dear all,

I would like to build a FPGA image with a replay block for E312.
However, there is no dram_clk on this device.
How should I instantiate my replay in my .yml?

My modification so far:

diff --git a/fpga/usrp3/top/e31x/e310_rfnoc_image_core.yml 
b/fpga/usrp3/top/e31x/e310_rfnoc_image_core.yml
index aa464454e..3e649caa1 100644
--- a/fpga/usrp3/top/e31x/e310_rfnoc_image_core.yml
+++ b/fpga/usrp3/top/e31x/e310_rfnoc_image_core.yml
@@ -20,12 +20,21 @@ stream_endpoints:
     ctrl: False                     # Endpoint passes control traffic
     data: True                      # Endpoint passes data traffic
     buff_size: 16384                # Ingress buffer size for data
+  ep4:                       # Stream endpoint name
+    ctrl: False                     # Endpoint passes control traffic
+    data: True                      # Endpoint passes data traffic
+    buff_size: 4096                 # Ingress buffer size for data
 
 # A list of all NoC blocks in design
 # ----------------------------------
 noc_blocks:
   radio0:                            # NoC block name
     block_desc: 'radio_2x64.yml'     # Block device descriptor
+  replay0:
+    block_desc: 'replay.yml'
+    parameters:
+      NUM_PORTS: 1
+      MEM_ADDR_W: 30
 
 # A list of all static connections in design
 # ------------------------------------------
@@ -42,6 +51,10 @@ connections:
   - { srcblk: radio0, srcport: ctrl_port, dstblk: _device_, dstport: 
ctrlport_radio }
   - { srcblk: _device_, srcport: x300_radio, dstblk: radio0, dstport: 
x300_radio }
   - { srcblk: _device_, srcport: time_keeper, dstblk: radio0, dstport: 
time_keeper }
+  # ep4 & replay0
+  - { srcblk: ep4,     srcport: out0,  dstblk: replay0, dstport: in_0 }
+  - { srcblk: replay0, srcport: out_0, dstblk: ep4,     dstport: in0  }
+  - { srcblk: replay0, srcport: axi_ram, dstblk: _device_, dstport: dram }
 
 # A list of all clock domain connections in design
 # ------------------------------------------------
@@ -52,3 +65,4 @@ connections:
 #         - dstport = Clock domain on the destination block to connect
 clk_domains:
   - { srcblk: _device_, srcport: radio, dstblk: radio0, dstport: radio }
+  - { srcblk: _device_, srcport: dram,  dstblk: replay0, dstport: mem  }

-- 

Cédric Hannotier
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