周公你好，我现在用LPC2478驱动一款夏普640*480的彩色液晶屏，发现驱动起来后屏幕很闪，我参数调了很久，都没有什么效果。液晶屏的型号是LQ104V1DG51_SHARP，以下是我的参数：
/* Structure containing the parameters for the LCD panel */
typedef struct {
INT8U h_back_porch; /* Horizontal back porch in clocks */
INT8U h_front_porch; /* Horizontal front porch in clocks */
INT8U h_sync_pulse_width; /* HSYNC pulse width in clocks */
INT16U pixels_per_line; /* Pixels per line (horizontal resolution) */
INT8U v_back_porch; /* Vertical back porch in clocks */
INT8U v_front_porch; /* Vertical front porch in clocks */
INT8U v_sync_pulse_width; /* VSYNC pulse width in clocks */
INT16U lines_per_panel; /* Lines per panel (vertical resolution) */
INT8U invert_output_enable; /* Invert output enable, 1 = invert*/
INT8U invert_panel_clock; /* Invert panel clock, 1 = invert*/
INT8U invert_hsync; /* Invert HSYNC, 1 = invert */
INT8U invert_vsync; /* Invert VSYNC, 1 = invert */
INT8U ac_bias_frequency; /* AC bias frequency in clocks */
INT8U bits_per_pixel; /* Maximum bits per pixel the display supports */
INT32U optimal_clock; /* Optimal clock rate (Hz) */
LCD_PANEL_T lcd_panel_type; /* LCD panel type */
INT8U dual_panel; /* Dual panel, 1 = dual panel display */
} LCD_PARAM_T;
const LCD_PARAM_T dh240 =
{
60,//48, /* Horizontal back porch */
10,//16, /* Horizontal front porch */
10,//96, /* HSYNC pulse width */
640, /* Pixels per line */
33,//33, /* Vertical back porch */
10,//10, /* Vertical front porch */
10,//2, /* VSYNC pulse width */
480, /* Lines per panel */
0, /* Do not invert output enable */
0,//0, /* Invert panel clock */
0,//0, /* Do not Invert HSYNC */
0, /* Do not invert VSYNC */
1, /* AC bias frequency (not used) */
16, /* Bits per pixel */
6500000, /* Optimal clock rate (Hz) */
TFT, /* LCD panel type */
0, /* Single panel display */
}; |
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