changed to zynq ODDR and minor fixes in to file sensor/sensor_spi_io.v

sensor/sensor_spi_io.v

@@ -37,7 +37,7 @@
  * with at least one of the Free Software programs.
  */
 //v0.0 working on s6lx4-3 10-40MHz clock with PCB CS01, not passing to datasheet CMV300 - extra clock to end spi enable period
-//to do v0.1 change ODDR2(s6) to ODDR(zynq)
+//v0.1 change ODDR2(s6) to ODDR(zynq)
  
 `timescale 1ns/1ps
 
@@ -50,6 +50,7 @@ input	rd_en,			//read from sensor enable, one clock period input signal
 input	wr_en,				//write to sensor enable, one clock period input signal
 input	[7:0] wr_data,		//data to spi address be write
 output reg [7:0] reg_data,	//data from spi address will read
+output reg spi_ready,  //spi available for command
 input	pin_spi_out,		//SPI interface pin: data out, direction from sensor to FPGA 
 output reg pin_spi_in,		//SPI interface pin: data in, direction from FPGA to sensor 
 output reg pin_spi_en,		//SPI interface pin: data enable, direction from FPGA to sensor 
@@ -59,7 +60,8 @@ output pin_spi_clk		//SPI interface pin: data clock, direction from FPGA to sens
 
 reg [7:0] sfst;
 reg [3:0] sfst_ciklu;
-reg [15:0] spi_word;
+reg [15:0] spi_word_rd;
+reg [15:0] spi_word_wr;
 reg read_bit;
 reg [3:0] sfst_bits;
 reg [7:0] sfst_byte;
@@ -87,6 +89,7 @@ if ( reset ) begin
 	sfst_bits[3:0] <= 4'b0000;
 	sfst_byte[7:0] <= 8'h00;
 	reg_data[7:0] <= 8'h00;
+	spi_ready <= 1'b1;
 
 end else begin 
 
@@ -96,24 +99,29 @@ end else begin
 				pin_spi_in <= 1'b0;
 				sfst_ciklu[3:0] <= 4'hf;
 				read_bit <= 1'b0;
-				if (rd_en)
+                spi_word_rd[15:0] <= {1'b0, addr[6:0], 8'h00};
+                spi_word_wr[15:0] <= {1'b1, addr[6:0], wr_data[7:0]};
+				if (rd_en) begin
+                    spi_ready <= 1'b0;
 					sfst <= `S_FST_RD0;
-				if (wr_en)
+					end
+				if (wr_en) begin
+                    spi_ready <= 1'b0;
 					sfst <= `S_FST_WR0;
 				end
+			end
 			`S_FST_RD0 : begin
 				pin_spi_en <= 1'b0;
 				pin_spi_in <= 1'b0;
 				sfst_ciklu[3:0] <= 4'hf;
 				read_bit <= 1'b0;
-				spi_word[15:0] <= {1'b0, addr[6:0], 8'h00};
 				sfst <= `S_FST_RD1;
 			end
 			`S_FST_RD1 : begin
 				pin_spi_en <= 1'b1;
 				read_bit <= 1'b0;
-				pin_spi_in <= spi_word[15];
-				spi_word[15:1] <= spi_word[14:0];
+				pin_spi_in <= spi_word_rd[15];
+				spi_word_rd[15:1] <= spi_word_rd[14:0];
 				if ( sfst_ciklu[3:0] == 4'b0000) begin
 					read_bit <= 1'b0;
 					sfst <= `S_FST_END;
@@ -131,13 +139,12 @@ end else begin
 				pin_spi_en <= 1'b0;
 				pin_spi_in <= 1'b0;
 				sfst_ciklu[3:0] <= 4'hf;
-				spi_word[15:0] <= {1'b1, addr[6:0], wr_data[7:0]};
 				sfst <= `S_FST_WR1;
 			end
 			`S_FST_WR1 : begin
 				pin_spi_en <= 1'b1;
-				pin_spi_in <= spi_word[15];
-				spi_word[15:1] <= spi_word[14:0];
+				pin_spi_in <= spi_word_wr[15];
+				spi_word_wr[15:1] <= spi_word_wr[14:0];
 				if ( sfst_ciklu[3:0] == 4'b0000) begin
 					sfst <= `S_FST_END;
 				end else begin
@@ -149,6 +156,7 @@ end else begin
 				pin_spi_in <= 1'b0;
 				sfst_ciklu[3:0] <= 4'hf;
 				read_bit <= 1'b0;
+                spi_ready <= 1'b1;
 				sfst <= `S_FST_000;
 			end
 		endcase
@@ -169,17 +177,21 @@ end //if
 end //always
 
 
-ODDR2 #(
-	.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1" 
+ODDR #(
+//	.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1"
+    .DDR_CLK_EDGE("SAME_EDGE"), 
 	.INIT(1'b0),    // Sets initial state of the Q output to 1'b0 or 1'b1
 	.SRTYPE("SYNC") // Specifies "SYNC" or "ASYNC" set/reset
 ) ODDR2_sens (
 	.Q(pin_spi_clk),   // 1-bit DDR output data
-	.C0(clk0),   // 1-bit clock input
-	.C1(!clk0),   // 1-bit clock input
+    .C(clk0),   // 1-bit clock input
+//	.C0(clk0),   // 1-bit clock input
+//	.C1(!clk0),   // 1-bit clock input
 	.CE(1'b1), // 1-bit clock enable input
-	.D0(1'b0), // 1-bit data input (associated with C0)
-	.D1(1'b1), // 1-bit data input (associated with C1)
+//	.D0(1'b0), // 1-bit data input (associated with C0)
+//	.D1(1'b1), // 1-bit data input (associated with C1)
+    .D1(1'b0), // 1-bit data input 
+    .D2(1'b1), // 1-bit data input 
 	.R(1'b0),   // 1-bit reset input
 	.S(1'b0)    // 1-bit set input
 );