[5]正点原子-领航者.ZYNQ_PL_LCD

ALTIUM2

  原子哥的4.3寸的屏幕显示效果还是刚刚的，800*480的高清屏。

  在RGB通信端口中，通过检测R7,G7,B7三个配置来识别相应的屏幕；



  并配置不同的时钟，相应的驱动

1. always @(*) begin
   
2.     case(lcd_id)
   
3.         16'h4342 : lcd_pclk = clk_12_5m;
   
4.         16'h7084 : lcd_pclk = clk_25m;      
   
5.         16'h7016 : lcd_pclk = clk;
   
6.         16'h4384 : lcd_pclk = clk_25m;
   
7.         16'h1018 : lcd_pclk = clk;
   
8.         default :  lcd_pclk = 1'b0;
   
9.     endcase      
   
10. end

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绘制“电路城”，生成字模


lcd_display.v

1. always @(posedge lcd_pclk) begin
   
2.     char[0 ]  <= 128'h00000000000000000000000000000000;
   
3.     char[1 ]  <= 128'h00000000000000000000000000000000;
   
4.     char[2 ]  <= 128'h00000000000000000000000000000000;
   
5.     char[3 ]  <= 128'h00000000000000000000000000000000;
   
6.     char[4 ]  <= 128'h00000000000000000000000000000000;
   
7.     char[5 ]  <= 128'h00000000000000000000000000000000;
   
8.     char[6 ]  <= 128'h00000000000000000000000000001000;
   
9.     char[7 ]  <= 128'h000000000000C0000000040000001800;
   
10.     char[8 ]  <= 128'h000000000001C00000001C0000000840;
    
11.     char[9 ]  <= 128'h000000000001C00000183300000008E0;
    
12.     char[10]  <= 128'h0003F80000018000067C3F8000C008E0;
    
13.     char[11]  <= 128'h001FFF000001800005FC7F8001C00C40;
    
14.     char[12]  <= 128'h001FFF000001BF000F8CE30001C00400;
    
15.     char[13]  <= 128'h001FFF000067FF800F08830003000600;
    
16.     char[14]  <= 128'h003FFF8000EFFF800E11C60003673F80;
    
17.     char[15]  <= 128'h003FFF8000EF81800E61FC0007F7FF00;
    
18.     char[16]  <= 128'h003FFF8001D3018006F078000FF6C600;
    
19.     char[17]  <= 128'h003FFF800183E18007E03E001F840B00;
    
20.     char[18]  <= 128'h003FFF800187E18003C06FE01E0C1360;
    
21.     char[19]  <= 128'h003FFF80018FC30000C8C3FC0C0E7960;
    
22.     char[20]  <= 128'h003FFF8000E3860000D9807C0C0DFD60;
    
23.     char[21]  <= 128'h001FFF0000E70C001CF607800417FDC0;
    
24.     char[22]  <= 128'h001FFF00006FF8001CEC9FE0042F9CC0;
    
25.     char[23]  <= 128'h001FFF00003FF18018D17CE0044818C0;
    
26.     char[24]  <= 128'h0003F800001F838008FB604004C819C0;
    
27.     char[25]  <= 128'h00000000000700C008FB40C003887340;
    
28.     char[26]  <= 128'h00000000000700800FF380800388F640;
    
29.     char[27]  <= 128'h00000000000301800F818F800100CC20;
    
30.     char[28]  <= 128'h000000000001FE000800BF8000001038;
    
31.     char[29]  <= 128'h000000000000300000005F0000002018;
    
32.     char[30]  <= 128'h00000000000000000000000000000000;
    
33.     char[31]  <= 128'h00000000000000000000000000000000;
    
34. end

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最后，仿真走起