diff options
Diffstat (limited to 'usrp2')
| -rw-r--r-- | usrp2/control_lib/fifo_to_wb.v | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/usrp2/control_lib/fifo_to_wb.v b/usrp2/control_lib/fifo_to_wb.v index 21d3945da..5be865a83 100644 --- a/usrp2/control_lib/fifo_to_wb.v +++ b/usrp2/control_lib/fifo_to_wb.v @@ -39,7 +39,9 @@ module fifo_to_wb localparam RESP_WAIT_READ = 6; localparam RESP_RCMD = 7; localparam RESP_RLEN = 8; - localparam RESP_READ = 9; + localparam RESP_RADDR_LSW = 9; + localparam RESP_RADDR_MSW = 10; + localparam RESP_READ = 11; reg [3:0] resp_state; reg rd, wr; @@ -111,6 +113,12 @@ module fifo_to_wb resp_state <= RESP_RLEN; RESP_RLEN : if(resp_dst_rdy) + resp_state <= RESP_RADDR_LSW; + RESP_RADDR_LSW : + if(resp_dst_rdy) + resp_state <= RESP_RADDR_MSW; + RESP_RADDR_MSW : + if(resp_dst_rdy) resp_state <= RESP_READ; RESP_READ : if(resp_dst_rdy & wb_ack_i) @@ -127,6 +135,8 @@ module fifo_to_wb case(resp_state) RESP_RCMD : resp_data <= { 2'b01, 8'hAA, seqnum }; RESP_RLEN : resp_data <= { 2'b00, length }; + RESP_RADDR_LSW : resp_data <= { 2'b00, base_addr }; + RESP_RADDR_MSW : resp_data <= { 2'b00, 16'd0 }; default : resp_data <= { (count==1), 1'b0, wb_dat_miso }; endcase // case (resp_state) @@ -139,6 +149,8 @@ module fifo_to_wb assign resp_src_rdy = (resp_state == RESP_RCMD) | (resp_state == RESP_RLEN) | + (resp_state == RESP_RADDR_LSW) | + (resp_state == RESP_RADDR_MSW) | ((resp_state == RESP_READ) & wb_ack_i); assign wb_dat_mosi = ctrl_data[15:0]; |