Многострадальный модуль, задача которого генерировать сигналы строчной и кадровой развертки с необходимыми параметрами.
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module generete_row_and_col_for_cheap ( input CLK_50MHZ, input CLK_20MHZ, input [7:0] adress_from_UART, input [15:0]UART_to_SPI, input D1, output D2, //resV input D3, output reg D4, output D5, //clkV output D6, //rstH output reg D7, output D8, //ClkH input D9, output reg D10, output reg [11:0]numRow =0, output reg [11:0]numCol =0, input [15:0]D4_start, input [15:0]D4_stop, input [15:0]countRow, input [15:0]countCol, input COM_TX_ON, input clk960, input [15:0]D10_start ); //reg [15:0]countRow = 323; //823; //423 //reg [15:0]countCol = 585;//2896;// 1896 reg clkH; reg clkV; reg resH; reg resV; reg userD4; reg userD7; reg userD10; reg [1:0] D4mux =0; reg [1:0] D7mux =0; reg [1:0] D10mux =0; reg [15:0] countStrob = 0; reg [15:0] countStrob_start = 400; reg [15:0] countStrob_end = 600; reg [15:0] countDeadTime = 0; reg [15:0] countDeadTime_end = 200; reg [15:0] maxTimeresH = 0; reg [17:0] clkCounter = 0; reg [17:0] count100Mhz; reg strob = 0; reg DeadTime = 0; //reg [15:0]D4_start ; //reg [15:0]D4_stop ; reg [15:0]D7_start ; reg [15:0]D7_stop ; //reg [15:0]D10_start; reg [15:0]D10_stop ; reg [7:0]CLOCK_divider = 10; reg clk_H_last; reg [15:0] col_max; reg [15:0] col_max_last; reg col_max_update; reg [15:0] row_max; reg [15:0] row_max_last; reg [15:0] row_max_update; assign D8 = clkH ; assign D5 = clkV ; assign D6 = resH ; assign D2 = resV ; always @ (posedge CLK_20MHZ) clkV <= ~clkV; //// задание определенных значений по UART always @ (posedge CLK_20MHZ) begin case(adress_from_UART) 113: case(UART_to_SPI) 0: D4 <= 0; 1: D4 <= 1; 2: D4 <= strob; 3: D4 <= userD4; endcase 114: case(UART_to_SPI) 0: D7 <= 0; 1: D7 <= 1; 2: D7 <= strob; 3: D7 <= userD7; endcase 115: case(UART_to_SPI) 0: D10 <= 0; 1: D10 <= 1; 2: D10 <= strob; 3: D10 <= userD10; endcase endcase /////////////////////////////////////// генерация нужного клока if (clkCounter < 100) begin //38 clkCounter <= clkCounter + 1; end else begin if (~DeadTime) begin clkCounter <= 0; //clkV_from_100 <= ~clkV_from_100; end end ////////////////////////////////////// генерация строба if (resH && clkH) // generate strob countStrob <= countStrob + 1; else countStrob <= 0; if (countStrob > countStrob_start && countStrob < countStrob_end) strob <= 1; else strob <= 0; ///////////////////////////////////// мертвое время if (resH && ~clkH) countDeadTime <= countDeadTime + 1; else countDeadTime <= 0; if (countDeadTime < countDeadTime_end && countDeadTime ) DeadTime <= 1; else DeadTime <= 0; //////////////////////////////////////////////// определение параметров if (countStrob > maxTimeresH ) begin maxTimeresH <= countStrob; countStrob_end <= maxTimeresH - 5; countStrob_start <= maxTimeresH - 205; end ////////////////////////////////////////////// генерация resV if(clkV) begin if (numRow == countRow)begin numRow <= 0; resV <=1; end else begin numRow <= numRow + 1; resV <= 0; end /////////////////////////////////////////////// генерация clkH if (numRow == countRow[11:1]) clkH <= 1; else if (numRow == countRow) clkH <= 0; end clk_H_last <= clkH; /////////////////////////////////////////////// генерация resH if (clk_H_last && ~clkH) if (numCol == countCol)begin numCol <= 0; resH <=1; end else begin numCol <= numCol + 1; resH <= 0; end end endmodule |
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