projects/fmcomms8/zcu102: Fix intermittent fail with timing violation

analogdevicesinc · Aug 7, 2023 · 04cba86 · 04cba86
1 parent 961b860
commit 04cba86
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Showing 3 changed files with 14 additions and 9 deletions.
diff --git a/projects/fmcomms8/zcu102/Makefile b/projects/fmcomms8/zcu102/Makefile
@@ -6,14 +6,14 @@
 
 PROJECT_NAME := fmcomms8_zcu102
 
-M_DEPS += ../common/fmcomms8_spi.v
 M_DEPS += ../common/fmcomms8_bd.tcl
 M_DEPS += ../../scripts/adi_pd.tcl
 M_DEPS += ../../common/zcu102/zcu102_system_constr.xdc
 M_DEPS += ../../common/zcu102/zcu102_system_bd.tcl
 M_DEPS += ../../common/xilinx/dacfifo_bd.tcl
 M_DEPS += ../../../library/jesd204/scripts/jesd204.tcl
 M_DEPS += ../../../library/common/ad_iobuf.v
+M_DEPS += ../../../library/common/ad_3w_spi.v
 
 LIB_DEPS += axi_dmac
 LIB_DEPS += axi_sysid

diff --git a/projects/fmcomms8/zcu102/system_project.tcl b/projects/fmcomms8/zcu102/system_project.tcl
@@ -38,7 +38,7 @@ adi_project fmcomms8_zcu102 0 [list \
 adi_project_files  fmcomms8_zcu102 [list \
   "system_top.v" \
   "system_constr.xdc"\
-  "../common/fmcomms8_spi.v" \
+  "$ad_hdl_dir/library/common/ad_3w_spi.v" \
   "$ad_hdl_dir/library/common/ad_iobuf.v" \
   "$ad_hdl_dir/projects/common/zcu102/zcu102_system_constr.xdc" ]
 

diff --git a/projects/fmcomms8/zcu102/system_top.v b/projects/fmcomms8/zcu102/system_top.v
@@ -176,13 +176,18 @@ module system_top (
   assign spi_csn_adrv9009_d = spi_3_to_8_csn[1];
   assign spi_csn_hmc7044 = spi_3_to_8_csn[2];
 
-  fmcomms8_spi i_spi (
-    .spi_csn(spi_3_to_8_csn),
-    .spi_clk(spi_clk),
-    .spi_mosi(spi_mosi),
-    .spi_miso_i(spi_miso),
-    .spi_miso_o(spi0_miso),
-    .spi_sdio(spi_sdio));
+  ad_3w_spi #(
+    .NUM_OF_SLAVES(1)
+  ) fmcomms8_spi (
+    .spi_csn (spi_3_to_8_csn[2]),
+    .spi_clk (spi_clk),
+    .spi_mosi (spi_mosi),
+    .spi_miso (fmcomms8_miso_3w),
+    .spi_sdio (spi_sdio),
+    .spi_dir ());
+
+  assign spi0_miso = ~spi_3_to_8_csn[2] ? fmcomms8_miso_3w : spi_miso;
+  assign spi_sdio =  ~&spi_3_to_8_csn[1:0] ? spi_mosi : 1'bz;
 
   assign tx_sync = tx_sync_c & tx_sync_d;