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ad9643: delay changes

main
Rejeesh Kutty 2015-05-19 12:34:44 -04:00
parent c8d3c04a05
commit 13156593f8
2 changed files with 54 additions and 109 deletions
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70
library/axi_ad9643/axi_ad9643.v
View File

@ -34,8 +34,6 @@
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
@ -97,7 +95,6 @@ module axi_ad9643 (
parameter PCORE_DEVICE_TYPE = 0;
parameter PCORE_ADC_DP_DISABLE = 0;
parameter PCORE_IODELAY_GROUP = "adc_if_delay_group";
parameter C_S_AXI_MIN_SIZE = 32'hffff;
// adc interface (clk, data, over-range)
@ -163,6 +160,7 @@ module axi_ad9643 (
wire adc_rst;
wire up_rstn;
wire up_clk;
wire delay_rst;
// internal signals
@ -180,17 +178,13 @@ module axi_ad9643 (
wire adc_ddr_edgesel_s;
wire adc_pin_mode_s;
wire adc_status_s;
wire delay_rst_s;
wire delay_sel_s;
wire delay_rwn_s;
wire [ 7:0] delay_addr_s;
wire [ 4:0] delay_wdata_s;
wire [ 4:0] delay_rdata_s;
wire delay_ack_t_s;
wire [14:0] up_dld_s;
wire [74:0] up_dwdata_s;
wire [74:0] up_drdata_s;
wire delay_locked_s;
wire [31:0] up_rdata_s[0:2];
wire up_rack_s[0:2];
wire up_wack_s[0:2];
wire [31:0] up_rdata_s[0:3];
wire up_rack_s[0:3];
wire up_wack_s[0:3];
wire up_wreq_s;
wire [13:0] up_waddr_s;
wire [31:0] up_wdata_s;
@ -221,9 +215,9 @@ module axi_ad9643 (
up_status_pn_err <= up_status_pn_err_s[0] | up_status_pn_err_s[1];
up_status_pn_oos <= up_status_pn_oos_s[0] | up_status_pn_oos_s[1];
up_status_or <= up_status_or_s[0] | up_status_or_s[1];
up_rdata <= up_rdata_s[0] | up_rdata_s[1] | up_rdata_s[2];
up_rack <= up_rack_s[0] | up_rack_s[1] | up_rack_s[2];
up_wack <= up_wack_s[0] | up_wack_s[1] | up_wack_s[2];
up_rdata <= up_rdata_s[0] | up_rdata_s[1] | up_rdata_s[2] | up_rdata_s[3];
up_rack <= up_rack_s[0] | up_rack_s[1] | up_rack_s[2] | up_rack_s[3];
up_wack <= up_wack_s[0] | up_wack_s[1] | up_wack_s[2] | up_wack_s[3];
end
end
@ -305,14 +299,12 @@ module axi_ad9643 (
.adc_status (adc_status_s),
.adc_ddr_edgesel (adc_ddr_edgesel_s),
.adc_pin_mode (adc_pin_mode_s),
.up_clk (up_clk),
.up_dld (up_dld_s),
.up_dwdata (up_dwdata_s),
.up_drdata (up_drdata_s),
.delay_clk (delay_clk),
.delay_rst (delay_rst_s),
.delay_sel (delay_sel_s),
.delay_rwn (delay_rwn_s),
.delay_addr (delay_addr_s),
.delay_wdata (delay_wdata_s),
.delay_rdata (delay_rdata_s),
.delay_ack_t (delay_ack_t_s),
.delay_rst (delay_rst),
.delay_locked (delay_locked_s));
// common processor control
@ -325,21 +317,15 @@ module axi_ad9643 (
.adc_ddr_edgesel (adc_ddr_edgesel_s),
.adc_pin_mode (adc_pin_mode_s),
.adc_status (adc_status_s),
.adc_sync_status (1'd0),
.adc_status_ovf (adc_dovf),
.adc_status_unf (adc_dunf),
.adc_clk_ratio (32'd1),
.adc_start_code (),
.adc_sync (),
.up_status_pn_err (up_status_pn_err),
.up_status_pn_oos (up_status_pn_oos),
.up_status_or (up_status_or),
.delay_clk (delay_clk),
.delay_rst (delay_rst_s),
.delay_sel (delay_sel_s),
.delay_rwn (delay_rwn_s),
.delay_addr (delay_addr_s),
.delay_wdata (delay_wdata_s),
.delay_rdata (delay_rdata_s),
.delay_ack_t (delay_ack_t_s),
.delay_locked (delay_locked_s),
.drp_clk (1'd0),
.drp_rst (),
.drp_sel (),
@ -364,6 +350,26 @@ module axi_ad9643 (
.up_rdata (up_rdata_s[2]),
.up_rack (up_rack_s[2]));
// adc delay control
up_delay_cntrl #(.IO_WIDTH(15), .IO_BASEADDR(6'h02)) i_delay_cntrl (
.delay_clk (delay_clk),
.delay_rst (delay_rst),
.delay_locked (delay_locked_s),
.up_dld (up_dld_s),
.up_dwdata (up_dwdata_s),
.up_drdata (up_drdata_s),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq_s),
.up_waddr (up_waddr_s),
.up_wdata (up_wdata_s),
.up_wack (up_wack_s[3]),
.up_rreq (up_rreq_s),
.up_raddr (up_raddr_s),
.up_rdata (up_rdata_s[3]),
.up_rack (up_rack_s[3]));
// up bus interface
up_axi i_up_axi (

93
library/axi_ad9643/axi_ad9643_if.v
View File

@ -69,14 +69,12 @@ module axi_ad9643_if (
// delay control signals
up_clk,
up_dld,
up_dwdata,
up_drdata,
delay_clk,
delay_rst,
delay_sel,
delay_rwn,
delay_addr,
delay_wdata,
delay_rdata,
delay_ack_t,
delay_locked);
// This parameter controls the buffer type based on the target device.
@ -109,14 +107,12 @@ module axi_ad9643_if (
// delay control signals
input up_clk;
input [14:0] up_dld;
input [74:0] up_dwdata;
output [74:0] up_drdata;
input delay_clk;
input delay_rst;
input delay_sel;
input delay_rwn;
input [ 7:0] delay_addr;
input [ 4:0] delay_wdata;
output [ 4:0] delay_rdata;
output delay_ack_t;
output delay_locked;
// internal registers
@ -136,13 +132,9 @@ module axi_ad9643_if (
reg [13:0] adc_data_b = 'd0;
reg adc_or_a = 'd0;
reg adc_or_b = 'd0;
reg [14:0] delay_ld = 'd0;
reg delay_ack_t = 'd0;
reg [ 4:0] delay_rdata = 'd0;
// internal signals
wire [ 4:0] delay_rdata_s[14:0];
wire [13:0] adc_data_p_s;
wire [13:0] adc_data_n_s;
wire adc_or_p_s;
@ -204,61 +196,6 @@ module axi_ad9643_if (
end
end
// delay write interface, each delay element can be individually
// addressed, and a delay value can be directly loaded (no inc/dec stuff)
always @(posedge delay_clk) begin
if ((delay_sel == 1'b1) && (delay_rwn == 1'b0)) begin
case (delay_addr)
8'h0e: delay_ld <= 15'h4000;
8'h0d: delay_ld <= 15'h2000;
8'h0c: delay_ld <= 15'h1000;
8'h0b: delay_ld <= 15'h0800;
8'h0a: delay_ld <= 15'h0400;
8'h09: delay_ld <= 15'h0200;
8'h08: delay_ld <= 15'h0100;
8'h07: delay_ld <= 15'h0080;
8'h06: delay_ld <= 15'h0040;
8'h05: delay_ld <= 15'h0020;
8'h04: delay_ld <= 15'h0010;
8'h03: delay_ld <= 15'h0008;
8'h02: delay_ld <= 15'h0004;
8'h01: delay_ld <= 15'h0002;
8'h00: delay_ld <= 15'h0001;
default: delay_ld <= 15'h0000;
endcase
end else begin
delay_ld <= 15'h0000;
end
end
// delay read interface, a delay ack toggle is used to transfer data to the
// processor side- delay locked is independently transferred
always @(posedge delay_clk) begin
case (delay_addr)
8'h0e: delay_rdata <= delay_rdata_s[14];
8'h0d: delay_rdata <= delay_rdata_s[13];
8'h0c: delay_rdata <= delay_rdata_s[12];
8'h0b: delay_rdata <= delay_rdata_s[11];
8'h0a: delay_rdata <= delay_rdata_s[10];
8'h09: delay_rdata <= delay_rdata_s[ 9];
8'h08: delay_rdata <= delay_rdata_s[ 8];
8'h07: delay_rdata <= delay_rdata_s[ 7];
8'h06: delay_rdata <= delay_rdata_s[ 6];
8'h05: delay_rdata <= delay_rdata_s[ 5];
8'h04: delay_rdata <= delay_rdata_s[ 4];
8'h03: delay_rdata <= delay_rdata_s[ 3];
8'h02: delay_rdata <= delay_rdata_s[ 2];
8'h01: delay_rdata <= delay_rdata_s[ 1];
8'h00: delay_rdata <= delay_rdata_s[ 0];
default: delay_rdata <= 5'd0;
endcase
if (delay_sel == 1'b1) begin
delay_ack_t <= ~delay_ack_t;
end
end
// data interface
generate
@ -273,11 +210,12 @@ module axi_ad9643_if (
.rx_data_in_n (adc_data_in_n[l_inst]),
.rx_data_p (adc_data_p_s[l_inst]),
.rx_data_n (adc_data_n_s[l_inst]),
.up_clk (up_clk),
.up_dld (up_dld[l_inst]),
.up_dwdata (up_dwdata[((l_inst*5)+4):(l_inst*5)]),
.up_drdata (up_drdata[((l_inst*5)+4):(l_inst*5)]),
.delay_clk (delay_clk),
.delay_rst (delay_rst),
.delay_ld (delay_ld[l_inst]),
.delay_wdata (delay_wdata),
.delay_rdata (delay_rdata_s[l_inst]),
.delay_locked ());
end
endgenerate
@ -294,11 +232,12 @@ module axi_ad9643_if (
.rx_data_in_n (adc_or_in_n),
.rx_data_p (adc_or_p_s),
.rx_data_n (adc_or_n_s),
.up_clk (up_clk),
.up_dld (up_dld[14]),
.up_dwdata (up_dwdata[74:70]),
.up_drdata (up_drdata[74:70]),
.delay_clk (delay_clk),
.delay_rst (delay_rst),
.delay_ld (delay_ld[14]),
.delay_wdata (delay_wdata),
.delay_rdata (delay_rdata_s[14]),
.delay_locked (delay_locked));
// clock