stm32外设驱动库、

# 示例 ## 基本使用 包含头文件： ```c #include "lcd_spi_drv.h" ``` 初始化屏幕： ```c lcd_init(); ``` 清屏： ```c lcd_clear(WHITE); ``` ## 画线示例 ```c lcd_draw_color_line(0,120,240,120,RED); //画水平线 lcd_draw_color_line(0,0,240,240,BLUE); //画斜线(从左到右，45°) lcd_draw_color_line(0,240,240,0,GREEN); //画斜线(从右到左，45°) lcd_draw_color_line(120,0,120,240,YELLOW); //画垂直线 lcd_draw_color_line(180,0,60,240,RED); //画斜线(从左到右，120°) lcd_draw_color_line(60,0,180,240,RED); //画斜线(从右到左，60°) lcd_draw_color_line(0,60,240,180,RED); //画斜线(从左到右，180°) lcd_draw_color_line(0,180,240,60,RED); //画斜线(从左到右，30°) LCD_Draw_ColorRect(60,60,180,180,PINK); //画矩形 LCD_Draw_ColorCircle(120,120,85, GBLUE); //画圆 ``` ## 字符示例 需要开启字符显示： ```c #define USE_ASCII_FONT_LIB 1 // Whether to enable character display ``` 测试代码： ```c //以下9行测试12/16/24/32四种字符和字符串显示 lcd_show_char(6,12,'B',BLACK,YELLOW,16); lcd_show_char(14,28,'C',BLACK,GREEN,24); lcd_show_char(0,0,'A',BLACK,BLUE,12); lcd_show_char(26,52,'D',BLACK,PINK,32); lcd_show_str(60,240-32-24-24-24,"Powerd BY",BLACK,GREEN,24); lcd_show_str(36,240-32-24-24,"TencentOS-tiny",BLACK,YELLOW,24); lcd_show_str(28,240-32-24,"Mculover666",BLACK,BLUE,32); lcd_show_str(12,240-24,"Copyright (c) 2019",BLACK,PINK,24);= ``` ## 六芒星示例 ```c lcd_draw_color_sixpointstar(150,65,40,RED); ``` ## 图片示例 需要开启字符显示： ```c #define USE_ASCII_FONT_LIB 1 // Whether to enable character display ``` 包含图片头文件： ```c #include "bear.h" ``` 图片显示测试： ```c //以下2行测试图片显示，需要bear.h头文件的支持 lcd_show_image(0,0,240,240,gImage_bear); lcd_show_str(70,240-24,"Starting...",WHITE,BLUE,24); ``` ## 刷屏示例 ```c start_time = HAL_GetTick(); lcd_color_set(GREEN, WHITE); lcd_clear(); end_time = HAL_GetTick(); printf("clear time is %d ms\r\n", end_time - start_time); ```