diff options
| -rw-r--r-- | techlibs/xilinx/xc7_brams_map.v | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/techlibs/xilinx/xc7_brams_map.v b/techlibs/xilinx/xc7_brams_map.v index 2b6ad0da6..982a5a07e 100644 --- a/techlibs/xilinx/xc7_brams_map.v +++ b/techlibs/xilinx/xc7_brams_map.v @@ -16,8 +16,9 @@ module \$__XILINX_RAMB36_SDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, input [71:0] B1DATA; input [7:0] B1EN; - wire [15:0] A1ADDR_16 = {A1ADDR, 6'b0}; - wire [15:0] B1ADDR_16 = {B1ADDR, 6'b0}; + // Set highest address bit to 1, as stated in UG473 (v1.14) July 3, 2019 + wire [15:0] A1ADDR_16 = {1'b1, A1ADDR, 6'b0}; + wire [15:0] B1ADDR_16 = {1'b1, B1ADDR, 6'b0}; wire [7:0] DIP, DOP; wire [63:0] DI, DO; @@ -153,8 +154,9 @@ module \$__XILINX_RAMB36_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, input [CFG_DBITS-1:0] B1DATA; input [CFG_ENABLE_B-1:0] B1EN; - wire [15:0] A1ADDR_16 = A1ADDR << (15 - CFG_ABITS); - wire [15:0] B1ADDR_16 = B1ADDR << (15 - CFG_ABITS); + // Set highest address bit to 1, as stated in UG473 (v1.14) July 3, 2019 + wire [15:0] A1ADDR_16 = {1'b1, A1ADDR} << (15 - CFG_ABITS); + wire [15:0] B1ADDR_16 = {1'b1, B1ADDR} << (15 - CFG_ABITS); wire [7:0] B1EN_8 = B1EN; wire [3:0] DIP, DOP; |