diff options
Diffstat (limited to 'rtl/bus_master.sv')
| -rw-r--r-- | rtl/bus_master.sv | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/rtl/bus_master.sv b/rtl/bus_master.sv index 7775e42..0c6af55 100644 --- a/rtl/bus_master.sv +++ b/rtl/bus_master.sv @@ -9,6 +9,7 @@ module bus_master output logic ready, output logic[31:0] data_rd, input logic[31:0] data_wr, + input logic[3:0] data_be, output logic cpu_clk, cpu_rst_n, irq, @@ -34,7 +35,6 @@ module bus_master assign cpu_rst_n = rst_n; assign data_rd = avl_readdata; - assign avl_byteenable = 4'b1111; //TODO always_comb unique case(state) @@ -56,12 +56,14 @@ module bus_master avl_write <= 0; avl_address <= 0; avl_writedata <= 0; + avl_byteenable <= 0; end else if((state == IDLE || !avl_waitrequest) && start) begin state <= WAIT; avl_read <= ~write; avl_write <= write; avl_address <= {addr, 2'b00}; avl_writedata <= data_wr; + avl_byteenable <= write ? data_be : 4'b1111; end else if(state == WAIT && !avl_waitrequest) begin state <= IDLE; avl_read <= 0; |