diff options
| -rw-r--r-- | usrp2/top/safe_u1e/safe_u1e.v | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/usrp2/top/safe_u1e/safe_u1e.v b/usrp2/top/safe_u1e/safe_u1e.v index 3f16d941c..ddd203cf9 100644 --- a/usrp2/top/safe_u1e/safe_u1e.v +++ b/usrp2/top/safe_u1e/safe_u1e.v @@ -7,7 +7,7 @@ module safe_u1e output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk, // GPMC - input EM_CLK, input [15:0] EM_D, input [10:1] EM_A, + input EM_CLK, inout [15:0] EM_D, input [10:1] EM_A, input EM_WAIT0, input EM_NCS4, input EM_NWP, input EM_NWE, input EM_NOE, input EM_NADV_ALE ); @@ -27,5 +27,11 @@ module safe_u1e assign debug_clk = { EM_CLK, clk_fpga }; assign debug = { { EM_WAIT0, EM_NADV_ALE, EM_NWP, EM_NCS4, EM_NWE, EM_NOE, EM_A[10:1] }, { EM_D } }; - + + wire EM_output_enable = (~EM_NOE & ~EM_NCS4); + wire [15:0] EM_D_out = 16'hBEEF; + wire [15:0] EM_D_in = EM_D; + + assign EM_D = EM_output_enable ? EM_D_out : 16'bz; + endmodule // safe_u2plus |