关于OV7725的分辨率设置问题

boufbou · 发表于 2023-11-25 09:32:32

always @(*)
begin
case(und_reg)
  7'd0: sccb_tmp<={24'h42_12_80}; //COM7 BIT[7]:复位所有的寄存器
  7'd1: sccb_tmp<={24'h42_3d_03}; //COM12 模拟过程直流补偿
  7'd2: sccb_tmp<={24'h42_15_00}; //COM10 href/vsync/pclk/data信号控制
  7'd3: sccb_tmp<={24'h42_17_26}; //HSTART 水平起始位置
  7'd4: sccb_tmp<={24'h42_18_a0}; //HSIZE 水平尺寸
  7'd5: sccb_tmp<={24'h42_19_07}; //VSTRT 垂直起始位置
  7'd6: sccb_tmp<={24'h42_1a_f0}; //VSIZE 垂直尺寸
  7'd7: sccb_tmp<={24'h42_32_00}; //HREF 图像开始和尺寸控制，控制低位
  7'd8: sccb_tmp<={24'h42_29_a0}; //HOutSize 水平输出尺寸
  7'd9: sccb_tmp<={24'h42_2a_00}; //EXHCH 虚拟像素MSB
  7'd10: sccb_tmp<={24'h42_2b_00}; //EXHCL 虚拟像素LSB
  7'd11: sccb_tmp<={24'h42_2c_f0}; //VOutSize 垂直输出尺寸
  7'd12: sccb_tmp<={24'h42_0d_41}; //COM4 PLL倍频设置(multiplier)
  7'd13: sccb_tmp<={24'h42_11_00}; //CLKRC 内部时钟配置
  7'd14: sccb_tmp<={24'h42_12_06}; //06=VGA640x480 RGB565 46=QVGA 320X240 RGB565
  7'd15: sccb_tmp<={24'h42_0c_10}; //COM3 Bit[0]: 0:图像数据 1:彩条测试
  7'd16: sccb_tmp<={24'h42_42_7f}; //TGT_B 黑电平校准蓝色通道目标值
  7'd17: sccb_tmp<={24'h42_4d_09}; //FixGain 模拟增益放大器
  7'd18: sccb_tmp<={24'h42_63_f0}; //AWB_Ctrl0 自动白平衡控制字节0
  7'd19: sccb_tmp<={24'h42_64_ff}; //DSP_Ctrl1 DSP控制字节1
  7'd20: sccb_tmp<={24'h42_65_00}; //DSP_Ctrl2 DSP控制字节2
  7'd21: sccb_tmp<={24'h42_66_00}; //DSP_Ctrl3 DSP控制字节3
  7'd22: sccb_tmp<={24'h42_67_00}; //DSP_Ctrl4 DSP控制字节4
  7'd23: sccb_tmp<={24'h42_13_ff}; //COM8
  7'd24: sccb_tmp<={24'h42_0f_c5}; //COM6
  7'd25: sccb_tmp<={24'h42_14_11};
  7'd26: sccb_tmp<={24'h42_22_98};
  7'd27: sccb_tmp<={24'h42_23_03};
  7'd28: sccb_tmp<={24'h42_24_40};
  7'd29: sccb_tmp<={24'h42_25_30};
  7'd30: sccb_tmp<={24'h42_26_a1};
  7'd31: sccb_tmp<={24'h42_6b_aa};
  7'd32: sccb_tmp<={24'h42_13_ff};
  7'd33: sccb_tmp<={24'h42_90_0a}; //EDGE1 边缘增强控制1
  7'd34: sccb_tmp<={24'h42_91_01}; //DNSOff
  7'd35: sccb_tmp<={24'h42_92_01}; //EDGE2 锐度(边缘增强)强度上限
  7'd36: sccb_tmp<={24'h42_93_01}; //EDGE3 锐度(边缘增强)强度下限
  7'd37: sccb_tmp<={24'h42_94_5f}; //MTX1 矩阵系数1
  7'd38: sccb_tmp<={24'h42_95_53}; //MTX1 矩阵系数2
  7'd39: sccb_tmp<={24'h42_96_11}; //MTX1 矩阵系数3
  7'd40: sccb_tmp<={24'h42_97_1a}; //MTX1 矩阵系数4
  7'd41: sccb_tmp<={24'h42_98_3d}; //MTX1 矩阵系数5
  7'd42: sccb_tmp<={24'h42_99_5a}; //MTX1 矩阵系数6
  7'd43: sccb_tmp<={24'h42_9a_1e}; //MTX_Ctrl 矩阵控制
  7'd44: sccb_tmp<={24'h42_9b_3f}; //BRIGHT 亮度
  7'd45: sccb_tmp<={24'h42_9c_25}; //CNST 对比度
  7'd46: sccb_tmp<={24'h42_9e_81};
  7'd47: sccb_tmp<={24'h42_a6_06}; //SDE 特殊数字效果控制
  7'd48: sccb_tmp<={24'h42_a7_65}; //USAT "U"饱和增益
  7'd49: sccb_tmp<={24'h42_a8_65}; //VSAT "V"饱和增益
  7'd50: sccb_tmp<={24'h42_a9_80}; //VSAT "V"饱和增益
  7'd51: sccb_tmp<={24'h42_aa_80}; //VSAT "V"饱和增益
  7'd52: sccb_tmp<={24'h42_7e_0c};
  7'd53: sccb_tmp<={24'h42_7f_16};
  7'd54: sccb_tmp<={24'h42_80_2a};
  7'd55: sccb_tmp<={24'h42_81_4e};
  7'd56: sccb_tmp<={24'h42_82_61};
  7'd57: sccb_tmp<={24'h42_83_6f};
  7'd58: sccb_tmp<={24'h42_84_7b};
  7'd59: sccb_tmp<={24'h42_85_86};
  7'd60: sccb_tmp<={24'h42_86_8e};
  7'd61: sccb_tmp<={24'h42_87_97};
  7'd62: sccb_tmp<={24'h42_88_a4};
  7'd63: sccb_tmp<={24'h42_89_af};
  7'd64: sccb_tmp<={24'h42_8a_c5};
  7'd65: sccb_tmp<={24'h42_8b_d7};
  7'd66: sccb_tmp<={24'h42_8c_e8};
  7'd67: sccb_tmp<={24'h42_8d_20};
  7'd68: sccb_tmp<={24'h42_0e_65};
  7'd69: sccb_tmp<={24'h42_09_00};
default:;
endcase
end
上面是原子哥教程里提供的部分设置代码，问一下各位网友如何设置分辨率为320*240输出的，在寄存器 12 中设置成 46 后，好像没反应哦！还是480个行信号，谢谢关注！