FPGA中怎么对芯片进行初始化

花开花落 · 发表于 2014-7-10 11:25:36

就是说我有一个液晶的芯片，我怎么对控制它的读写时序，还有就是初始化如何控制，我看别人写的都是一堆case什么的，完全看不懂啊

花开花落 · 发表于 2014-7-12 08:56:43

laokai 发表于 2014-7-11 14:39
看不懂贴出来帮你解释！

好的，我贴出来

module I2C_OV7670_Config
(
input [7:0] LUT_INDEX,
output reg [15:0] LUT_DATA
);

parameter Read_DATA = 0; //Read data LUT Address
parameter SET_OV7670 = 2; //SET_OV LUT Adderss
///////////////////// Config Data LUT    //////////////////////////
always@(*)
begin
case(LUT_INDEX)
//Audio Config Data
//Read Data Index
// Read_DATA + 0 : LUT_DATA = {8'h0A, 8'h76}; //PID ���̸�λʶ���� ��ֻ���
// Read_DATA + 1 : LUT_DATA = {8'h0B, 8'h73}; //VER ���̵�λʶ���� ��ֻ���
Read_DATA + 0 : LUT_DATA = {8'h1C, 8'h7F}; //MIDH ����ʶ���ֽ�-�ߣ�ֻ���
Read_DATA + 1 : LUT_DATA = {8'h1D, 8'hA2}; //MIDL ����ʶ���ֽ�-�ͣ�ֻ���
//OV7670 : VGA RGB565
SET_OV7670 + 0 : LUT_DATA = 16'h3a04; //16'h3a04
SET_OV7670 + 1 : LUT_DATA = 16'h40d0;
SET_OV7670 + 2 : LUT_DATA = 16'h1204; //[4]������ʽ��QVGA [2]������ʽ��RGB {COM7[2], COM7[0]}={1,0} RGB  COM7[4]=1 ������ʹ��һ֡ͼ��ֻ�ɼ�240�У��൱��ֻ�ɼ��泡����ʱ��ͼ
SET_OV7670 + 3 : LUT_DATA = 16'h32b6; //16'h32b6
SET_OV7670 + 4 : LUT_DATA = 16'h1713; //
SET_OV7670 + 5 : LUT_DATA = 16'h1801; //
SET_OV7670 + 6 : LUT_DATA = 16'h1902; //
SET_OV7670 + 7 : LUT_DATA = 16'h1a7a; //
SET_OV7670 + 8 : LUT_DATA = 16'h030a; //
SET_OV7670 + 9 : LUT_DATA = 16'h0c00;
SET_OV7670 + 10 : LUT_DATA = 16'h3e00;
SET_OV7670 + 11 : LUT_DATA = 16'h7000; //00:Normal, 80:��λ1, 00:����, 80:��������
SET_OV7670 + 12 : LUT_DATA = 16'h7100; //00:Normal, 00:��λ1, 80:����, 80����������
SET_OV7670 + 13 : LUT_DATA = 16'h7211;
SET_OV7670 + 14 : LUT_DATA = 16'h7300;
SET_OV7670 + 15 : LUT_DATA = 16'ha202;
SET_OV7670 + 16 : LUT_DATA = 16'h1180; //F���ڲ�ʱ�ӣ�=F������ʱ�ӣ�/��bit[5:0]+1��  range [00000]:[11111]
SET_OV7670 + 17 : LUT_DATA = 16'h7a20;
SET_OV7670 + 18 : LUT_DATA = 16'h7b1c;
SET_OV7670 + 19 : LUT_DATA = 16'h7c28;
SET_OV7670 + 20 : LUT_DATA = 16'h7d3c;
SET_OV7670 + 21 : LUT_DATA = 16'h7e55;
SET_OV7670 + 22 : LUT_DATA = 16'h7f68;
SET_OV7670 + 23 : LUT_DATA = 16'h8076;
SET_OV7670 + 24 : LUT_DATA = 16'h8180;
SET_OV7670 + 25 : LUT_DATA = 16'h8288;
SET_OV7670 + 26 : LUT_DATA = 16'h838f;
SET_OV7670 + 27 : LUT_DATA = 16'h8496;
SET_OV7670 + 28 : LUT_DATA = 16'h85a3;
SET_OV7670 + 29 : LUT_DATA = 16'h86af;
SET_OV7670 + 30 : LUT_DATA = 16'h87c4;
SET_OV7670 + 31 : LUT_DATA = 16'h88d7;
SET_OV7670 + 32 : LUT_DATA = 16'h89e8;
SET_OV7670 + 33 : LUT_DATA = 16'h13e0;
SET_OV7670 + 34 : LUT_DATA = 16'h0000;
SET_OV7670 + 35 : LUT_DATA = 16'h1000;
SET_OV7670 + 36 : LUT_DATA = 16'h0d00;
SET_OV7670 + 37 : LUT_DATA = 16'h1428; //
SET_OV7670 + 38 : LUT_DATA = 16'ha505;
SET_OV7670 + 39 : LUT_DATA = 16'hab07;
SET_OV7670 + 40 : LUT_DATA = 16'h2475;
SET_OV7670 + 41 : LUT_DATA = 16'h2563;
SET_OV7670 + 42 : LUT_DATA = 16'h26a5;
SET_OV7670 + 43 : LUT_DATA = 16'h9f78;
SET_OV7670 + 44 : LUT_DATA = 16'ha068;
SET_OV7670 + 45 : LUT_DATA = 16'ha103;
SET_OV7670 + 46 : LUT_DATA = 16'ha6df;
SET_OV7670 + 47 : LUT_DATA = 16'ha7df;
SET_OV7670 + 48 : LUT_DATA = 16'ha8f0;
SET_OV7670 + 49 : LUT_DATA = 16'ha990;
SET_OV7670 + 50 : LUT_DATA = 16'haa94;
SET_OV7670 + 51 : LUT_DATA = 16'h13ef; //
SET_OV7670 + 52 : LUT_DATA = 16'h0e61;
SET_OV7670 + 53 : LUT_DATA = 16'h0f4b;
SET_OV7670 + 54 : LUT_DATA = 16'h1602;
// SET_OV7670 + 55 : LUT_DATA = 16'h1e01;//======16'h1e37

SET_OV7670 + 56 : LUT_DATA = 16'h2102;
SET_OV7670 + 57 : LUT_DATA = 16'h2291;
SET_OV7670 + 58 : LUT_DATA = 16'h2907;
SET_OV7670 + 59 : LUT_DATA = 16'h330b;
SET_OV7670 + 60 : LUT_DATA = 16'h350b;
SET_OV7670 + 61 : LUT_DATA = 16'h371d;
SET_OV7670 + 62 : LUT_DATA = 16'h3871;
SET_OV7670 + 63 : LUT_DATA = 16'h392a;
SET_OV7670 + 64 : LUT_DATA = 16'h3c78;
SET_OV7670 + 65 : LUT_DATA = 16'h4d40;
SET_OV7670 + 66 : LUT_DATA = 16'h4e20;
SET_OV7670 + 67 : LUT_DATA = 16'h6900;
// SET_OV7670 + 68 : LUT_DATA = 16'h6b60;//========16'h6b60;
SET_OV7670 + 69 : LUT_DATA = 16'h7419;
SET_OV7670 + 70 : LUT_DATA = 16'h8d4f;
SET_OV7670 + 71 : LUT_DATA = 16'h8e00;
SET_OV7670 + 72 : LUT_DATA = 16'h8f00;
SET_OV7670 + 73 : LUT_DATA = 16'h9000;
SET_OV7670 + 74 : LUT_DATA = 16'h9100;
SET_OV7670 + 75 : LUT_DATA = 16'h9200;
SET_OV7670 + 76 : LUT_DATA = 16'h9600;
SET_OV7670 + 77 : LUT_DATA = 16'h9a80;
SET_OV7670 + 78 : LUT_DATA = 16'hb084;
SET_OV7670 + 79 : LUT_DATA = 16'hb10c;
SET_OV7670 + 80 : LUT_DATA = 16'hb20e;
SET_OV7670 + 81 : LUT_DATA = 16'hb382;
SET_OV7670 + 82 : LUT_DATA = 16'hb80a;

SET_OV7670 + 83  : LUT_DATA = 16'h4314;
SET_OV7670 + 84  : LUT_DATA = 16'h44f0;
SET_OV7670 + 85  : LUT_DATA = 16'h4534;
SET_OV7670 + 86  : LUT_DATA = 16'h4658;
SET_OV7670 + 87  : LUT_DATA = 16'h4728;
SET_OV7670 + 88  : LUT_DATA = 16'h483a;
SET_OV7670 + 89  : LUT_DATA = 16'h5988;
SET_OV7670 + 90  : LUT_DATA = 16'h5a88;
SET_OV7670 + 91  : LUT_DATA = 16'h5b44;
SET_OV7670 + 92  : LUT_DATA = 16'h5c67;
SET_OV7670 + 93  : LUT_DATA = 16'h5d49;
SET_OV7670 + 94  : LUT_DATA = 16'h5e0e;
SET_OV7670 + 95  : LUT_DATA = 16'h6404;
SET_OV7670 + 96  : LUT_DATA = 16'h6520;
SET_OV7670 + 97  : LUT_DATA = 16'h6605;
SET_OV7670 + 98  : LUT_DATA = 16'h9404;
SET_OV7670 + 99  : LUT_DATA = 16'h9508;
SET_OV7670 + 100 : LUT_DATA = 16'h6c0a;
SET_OV7670 + 101 : LUT_DATA = 16'h6d55;
SET_OV7670 + 102 : LUT_DATA = 16'h6e11;
SET_OV7670 + 103 : LUT_DATA = 16'h6f9f;
SET_OV7670 + 104 : LUT_DATA = 16'h6a40;
SET_OV7670 + 105 : LUT_DATA = 16'h0140;
SET_OV7670 + 106 : LUT_DATA = 16'h0240;
SET_OV7670 + 107 : LUT_DATA = 16'h13e7;
SET_OV7670 + 108 : LUT_DATA = 16'h1500;

SET_OV7670 + 109 : LUT_DATA = 16'h4f80;
SET_OV7670 + 110 : LUT_DATA = 16'h5080;
SET_OV7670 + 111 : LUT_DATA = 16'h5100;
SET_OV7670 + 112 : LUT_DATA = 16'h5222;
SET_OV7670 + 113 : LUT_DATA = 16'h535e;
SET_OV7670 + 114 : LUT_DATA = 16'h5480;
SET_OV7670 + 115 : LUT_DATA = 16'h589e;

SET_OV7670 + 116 : LUT_DATA = 16'h4108;
SET_OV7670 + 117 : LUT_DATA = 16'h3f00;
SET_OV7670 + 118 : LUT_DATA = 16'h7505;
SET_OV7670 + 119 : LUT_DATA = 16'h76e1;
SET_OV7670 + 120 : LUT_DATA = 16'h4c00;
SET_OV7670 + 121 : LUT_DATA = 16'h7701;
SET_OV7670 + 122 : LUT_DATA = 16'h3dc2;
SET_OV7670 + 123 : LUT_DATA = 16'h4b09;
SET_OV7670 + 124 : LUT_DATA = 16'hc960;
SET_OV7670 + 125 : LUT_DATA = 16'h4138;
SET_OV7670 + 126 : LUT_DATA = 16'h5640;

SET_OV7670 + 127 : LUT_DATA = 16'h3411;
SET_OV7670 + 128 : LUT_DATA = 16'h3b02;
SET_OV7670 + 129 : LUT_DATA = 16'ha489; //
SET_OV7670 + 130 : LUT_DATA = 16'h9600;
SET_OV7670 + 131 : LUT_DATA = 16'h9730;
SET_OV7670 + 132 : LUT_DATA = 16'h9820;
SET_OV7670 + 133 : LUT_DATA = 16'h9930;
SET_OV7670 + 134 : LUT_DATA = 16'h9a84;
SET_OV7670 + 135 : LUT_DATA = 16'h9b29;
SET_OV7670 + 136 : LUT_DATA = 16'h9c03;
SET_OV7670 + 137 : LUT_DATA = 16'h9d4c;
SET_OV7670 + 138 : LUT_DATA = 16'h9e3f;
SET_OV7670 + 139 : LUT_DATA = 16'h7804;

SET_OV7670 + 140 : LUT_DATA = 16'h7901;
SET_OV7670 + 141 : LUT_DATA = 16'hc8f0;
SET_OV7670 + 142 : LUT_DATA = 16'h790f;
SET_OV7670 + 143 : LUT_DATA = 16'hc800;
SET_OV7670 + 144 : LUT_DATA = 16'h7910;
SET_OV7670 + 145 : LUT_DATA = 16'hc87e;
SET_OV7670 + 146 : LUT_DATA = 16'h790a;
SET_OV7670 + 147 : LUT_DATA = 16'hc880;
SET_OV7670 + 148 : LUT_DATA = 16'h790b;
SET_OV7670 + 149 : LUT_DATA = 16'hc801;
SET_OV7670 + 150 : LUT_DATA = 16'h790c;
SET_OV7670 + 151 : LUT_DATA = 16'hc80f;
SET_OV7670 + 152 : LUT_DATA = 16'h790d;
SET_OV7670 + 153 : LUT_DATA = 16'hc820;
SET_OV7670 + 154 : LUT_DATA = 16'h7909;
SET_OV7670 + 155 : LUT_DATA = 16'hc880;
SET_OV7670 + 156 : LUT_DATA = 16'h7902;
SET_OV7670 + 157 : LUT_DATA = 16'hc8c0;
SET_OV7670 + 158 : LUT_DATA = 16'h7903;
SET_OV7670 + 159 : LUT_DATA = 16'hc840;
SET_OV7670 + 160 : LUT_DATA = 16'h7905;
SET_OV7670 + 161 : LUT_DATA = 16'hc830;
SET_OV7670 + 162 : LUT_DATA = 16'h7926;

SET_OV7670 + 163 : LUT_DATA = 16'h0903;
SET_OV7670 + 164 : LUT_DATA = 16'h3b42;
default         : LUT_DATA = 0;
endcase
end

endmodule
这个是通过SCCB对ov7670进行初始化，有些寄存器不知道如何配置，我看了datasheet只需要配置16个就行了

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