have a look at the Ft board

dheijl · Feb 11, 2025 · 3ecdf6b · 3ecdf6b
1 parent 8a97511
commit 3ecdf6b
Show file tree

Hide file tree

Showing 3 changed files with 47 additions and 5 deletions.
diff --git a/test0/constraint/SPI.acf b/test0/constraint/SPI.acf
@@ -1,4 +1,6 @@
-pin sck A5
-pin sdi A6
-pin sdo A9
-pin cs A2
+STANDARD(LVCMOS33) {
+    pin sck A5
+    pin sdi A6
+    pin sdo A9
+    pin cs A2
+}
diff --git a/test0/source/alchitry_top.luc b/test0/source/alchitry_top.luc
@@ -7,7 +7,16 @@ module alchitry_top (
     input sck,     // spi clock
     input sdi,     // spi mosi
     output sdo,    // spi miso
-    input cs        // spi slave select
+    input cs,        // spi slave select
+    input ft_clk,           // Ft 100MHz clock
+    input ft_rxf,           // Ft Rx Full (0 = data in rx buffer)
+    input ft_txe,           // Ft Tx Empty (0 = space in tx buffer)
+    inout ft_data[16],      // Ft data bus
+    inout ft_be[2],         // Ft byte enable
+    output ft_rd,           // Ft read flag (0 = read)
+    output ft_wr,           // Ft write flag (0 = write)
+    output ft_oe            // Ft output enable (0 = Ft, 1 = FPGA drives bus)
+
 ) {
     /*
     SPI Mode 0 = CPOL 0 CPHA 0
@@ -30,6 +39,7 @@ module alchitry_top (
             spi_peripheral spi (#CPOL(0), #CPHA(0), .cs(cs), .sck(sck), .sdi(sdi))
             dff have_char[1]
             dff next_char[8]
+            ft ft(#BUS_WIDTH(16), #TX_BUFFER(256), #RX_BUFFER(256), .ft_clk(ft_clk), .ft_data(ft_data), .ft_be(ft_be))            
         }
     }
 
@@ -42,6 +52,18 @@ module alchitry_top (
         rx.rx = usb_rx
         usb_tx = tx.tx
 
+        ft.ft_rxf = ft_rxf
+        ft.ft_txe = ft_txe
+        ft_rd = ft.ft_rd
+        ft_wr = ft.ft_wr
+        ft_oe = ft.ft_oe
+
+        // echo data back
+        ft.ui_dout_get = !ft.ui_din_full
+        ft.ui_din_valid = !ft.ui_dout_empty
+        ft.ui_din = ft.ui_dout
+        ft.ui_din_be = ft.ui_dout_be
+
         // connect spi
         spi.data_in = 8h00
         sdo = spi.sdo

diff --git a/test0/test0.alp b/test0/test0.alp
@@ -118,6 +118,18 @@
                     "type": "DiskFile",
                     "path": "source/spi_peripheral.luc"
                 }
+            },
+            {
+                "file": {
+                    "type": "Component",
+                    "path": "Memory/async_fifo.luc"
+                }
+            },
+            {
+                "file": {
+                    "type": "Component",
+                    "path": "Interfaces/ft.luc"
+                }
             }
         ],
         "constraintFiles": [
@@ -132,6 +144,12 @@
                     "type": "DiskFile",
                     "path": "constraint/SPI.acf"
                 }
+            },
+            {
+                "file": {
+                    "type": "Component",
+                    "path": "Constraints/ft_v1.acf"
+                }
             }
         ],
         "ipCores": []