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    T113 Framebuffer编程 LCD无法显示字符

    创龙科技专区
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    • zznzzn
      zznzzn LV 6 last edited by

      2adcc97776951487cd924c97b9dd1191d4f55b35_2_375x500.jpeg

      无论怎么改显示字符的程序(中英文都无法显示),lcd_put_pixel函数中颜色的参数,屏幕都没有变化,位置的参数更改是有变化的,现在的问题就是无法更改颜色,求解

      程序是用git下载韦老师的例程

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      • livpo
        livpo LV 6 last edited by

        修改一下lcd_put_ascii函数

        void lcd_put_ascii(int x, int y, unsigned char c)
        {
        	unsigned char *dots = (unsigned char *)&fontdata_8x16[c*16];
        	int i, b;
        	unsigned char byte;
        
        	for (i = 0; i < 16; i++)
        	{
        		byte = dots[i];
        		for (b = 7; b >= 0; b--)
        		{
        			if (byte & (1<<b))
        			{
        				/* show */
        				lcd_put_pixel(x+7-b, y+i, 0xffffffff); /* 白 */
        			}
        			else
        			{
        				/* hide */
        				lcd_put_pixel(x+7-b, y+i, 0); /* 黑 */
        			}
        		}
        	}
        }
        
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        • Moved from 代码下载问题专区 by  xiaowenge xiaowenge 
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