STM32调试OV7670,用的奋斗V5开发板+3寸屏,YUYV输出,灰度值读取正确,并且能在LCD上正确显示,本想二值化后显示到LCD上,但二值化后,LCD不是全黑,阈值调过,无效,所以把灰度值送给上位机,上位机显示不正常,求大神相助 USART_SendData(USART1,0xff ); for(y=0;y<240;y++) { for(x=0;x<320;x++) { FIFO_RCLK_L(); CMOS_Data = ((GPIOC->IDR<<8) & 0xff00); grey=GPIOC->IDR&0X00FF ; FIFO_RCLK_H(); FIFO_RCLK_L(); //CMOS_Data |= (((GPIOC->IDR) & 0x00ff)); FIFO_RCLK_H(); if (grey==0xff) grey=0xfe; USART_SendData(USART1,grey ); color_r = CMOS_Data&0xf800; color_b = CMOS_Data>>11; CMOS_Data >>=5; color_g =CMOS_Data&0x07e0; Y_565=color_r + color_g + color_b; //YUV转RGB565数据写入显示区 *(__IO uint16_t *) (Bank1_LCD_D)=(Y_565); } } Vsync = 0; |
g847279681 发表于 2016-6-11 20:25
上位机和下位机协议对么
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