From 64b4d0177ecd5e3fc2ef60fcc643a050fe3005d7 Mon Sep 17 00:00:00 2001
From: Istvan Csomortani <istvan.csomortani@analog.com>
Date: Mon, 24 Nov 2014 17:55:19 +0200
Subject: [PATCH] ad9467_zed: Using ad_iobuf module for IO buffer
 instantiations on top

No functional changes, we just try to keep consistency.
---
 projects/ad9467_fmc/zed/system_project.tcl |  1 +
 projects/ad9467_fmc/zed/system_top.v       | 30 ++++++++++++----------
 2 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/projects/ad9467_fmc/zed/system_project.tcl b/projects/ad9467_fmc/zed/system_project.tcl
index 40df1ec55..3b8dd0ee4 100644
--- a/projects/ad9467_fmc/zed/system_project.tcl
+++ b/projects/ad9467_fmc/zed/system_project.tcl
@@ -7,6 +7,7 @@ set project_name ad9467_fmc_zed
 adi_project_create $project_name
 
 adi_project_files $project_name [list "../common/ad9467_spi.v" \
+                                      "$ad_hdl_dir/library/common/ad_iobuf.v" \
                                       "system_top.v" \
                                       "system_constr.xdc" \
                                       "$ad_hdl_dir/projects/common/zed/zed_system_constr.xdc"]
diff --git a/projects/ad9467_fmc/zed/system_top.v b/projects/ad9467_fmc/zed/system_top.v
index 98f1746cf..b41f45859 100644
--- a/projects/ad9467_fmc/zed/system_top.v
+++ b/projects/ad9467_fmc/zed/system_top.v
@@ -175,21 +175,23 @@ wire    [15:0]  ps_intrs;
 
 // instantiations
 
-genvar n;
-generate
-for (n = 0; n <= 31; n = n + 1) begin: g_iobuf_gpio_bd
-IOBUF i_iobuf_gpio_bd (
-   .I (gpio_o[n]),
-   .O (gpio_i[n]),
-   .T (gpio_t[n]),
-   .IO (gpio_bd[n]));
-end
-endgenerate
+  ad_iobuf #(.DATA_WIDTH(32)) i_iobuf_gpio (
+    .dt ({gpio_t[31:0]}),
+    .di ({gpio_o[31:0]}),
+    .do ({gpio_i[31:0]}),
+    .dio(gpio_bd));
 
-IOBUF i_iic_mux_scl_0 (.I(iic_mux_scl_o_s[0]), .O(iic_mux_scl_i_s[0]), .T(iic_mux_scl_t_s), .IO(iic_mux_scl[0]));
-IOBUF i_iic_mux_scl_1 (.I(iic_mux_scl_o_s[1]), .O(iic_mux_scl_i_s[1]), .T(iic_mux_scl_t_s), .IO(iic_mux_scl[1]));
-IOBUF i_iic_mux_sda_0 (.I(iic_mux_sda_o_s[0]), .O(iic_mux_sda_i_s[0]), .T(iic_mux_sda_t_s), .IO(iic_mux_sda[0]));
-IOBUF i_iic_mux_sda_1 (.I(iic_mux_sda_o_s[1]), .O(iic_mux_sda_i_s[1]), .T(iic_mux_sda_t_s), .IO(iic_mux_sda[1]));
+   ad_iobuf #(.DATA_WIDTH(2)) i_iobuf_iic_scl (
+    .dt ({iic_mux_scl_t_s,iic_mux_scl_t_s}),
+    .di (iic_mux_scl_o_s),
+    .do (iic_mux_scl_i_s),
+    .dio(iic_mux_scl));
+
+   ad_iobuf #(.DATA_WIDTH(2)) i_iobuf_iic_sda (
+    .dt ({iic_mux_sda_t_s,iic_mux_sda_t_s}),
+    .di (iic_mux_sda_o_s),
+    .do (iic_mux_sda_i_s),
+    .dio(iic_mux_sda));
 
 assign spi_csn_adc = spi_csn[0];
 assign spi_csn_clk = spi_csn[1];