首页应用案例 › 第七讲 单片机驱动彩色液晶屏 显示文字:Part3.自建字库

第七讲 单片机驱动彩色液晶屏 显示文字:Part3.自建字库

2024-01-15

目录

第一讲 单片机最小系统STM32F103C6T6通过RA8889驱动彩色液晶屏播放视频

第二讲 单片机最小系统STM32F103C6T6控制RA8889驱动彩色液晶屏硬件框架

第三讲 单片机驱动彩色液晶屏 控制RA8889软件:如何初始化

第四讲 单片机驱动彩色液晶屏 控制RA8889软件:绘图

第五讲 单片机驱动彩色液晶屏 控制RA8889软件:显示文字:Part1.内部字库

第六讲 单片机驱动彩色液晶屏 控制RA8889软件:显示文字:Part2.外接字库

第七讲 单片机驱动彩色液晶屏 控制RA8889软件:显示文字:Part3.自建字库

第八讲 单片机驱动彩色液晶屏 控制RA8889软件:显示图片

第九讲 单片机驱动彩色液晶屏 控制RA8889软件:认识显存并进行读、写、复制

第十讲 单片机驱动彩色液晶屏 控制RA8889软件:图像运算

第十一讲 单片机驱动彩色液晶屏 控制RA8889软件:播放avi视频

第十二讲 单片机驱动彩色液晶屏 如何打包bin档

第十三讲 单片机驱动彩色液晶屏 bin档的烧录方法

 

如何通过RA8889 / RA8876来显示文字?

UI界面需求最大的两个功能,第一个是显示图形,第二个是显示文字。文字部分有ASCII和中文,或者是多国语言,下面我们就专门针对RA8889如何显示文字展开介绍。
本章要介绍如何自建中文字库,以及单片机如何控制RA8889进行调用并显示。

本篇要展现的内容比较丰富,篇幅较长,需要多些耐心阅读。

三种文字显示方法的优缺比较:

通过上图比较,自建字库除了显示速度会慢一些,优势还是很大,设计灵活度也很高,同时还可以节省专用字库芯片的成本,具有一定的经效益,值得多加参考!

下面开始介绍单片机如何控制RA8889来驱动彩屏显示文字,这里主要是针对显示中文字体进行展开说明,若还有其他国家的字体也可以借鉴该方法进行设计,有兴趣的C友们可留言进行探讨。

一、需求的中文字数不多,采用以下方法

自建点阵字码表;

单片机获取字码数据,按点写入显存,同时指定前景、背景及透明色。

框架图:

调用函数:

**
void User_Font_Demo(void)

{

    Show_User_Font(25, 32, 350, 180, 0, color65k_red, color65k_green, "菱致电子瑞佑科技");

    Show_User_Font(25, 32, 260, 260, 1, color65k_black, color65k_red, "单片机驱动彩色液晶屏极简方案");

    delay_seconds(3);

}

子函数:

**
void Show_User_Font(

    unsigned int font_lib_size // 自建字库数组的文字个数

    ,

    unsigned int font_size // 字模大小,比如32*32点阵写32

    ,

    unsigned short x // 显示窗口的x轴坐标

    ,

    unsigned short y // 显示窗口的y轴坐标

    ,

    int Chroma_key // 是否透明:0-不透明 1-透明色

    ,

    unsigned long Foreground_color // 前景色

    ,

    unsigned long Background_color // 背景色

    ,

    const unsigned char *str // 字符串

)

{

    unsigned int i, j = 0;

    unsigned int k, len; // len;字符串的长度

    unsigned char hanziCode[128];

    unsigned char strfont_0, strfont_1, Index_0, Index_1;

    Goto_Pixel_XY(x, y);

    strcpy((char *)hanziCode, str);

    len = strlen(hanziCode) / 2; // 一个中文汉字占两个字节

    for (k = 0; k < len; k++) {

        strfont_0 = *(hanziCode + j); // 字符值

        j++;

        strfont_1 = *(hanziCode + j);

        j++;

        for (i = 0; i < font_lib_size; i++) {

            Index_0 = code_GB_32[i].Index[0]; // 取出字库数组中汉字内码索引值

            Index_1 = code_GB_32[i].Index[1];

            if (strfont_0 == Index_0 && strfont_1 == Index_1) // 比较字符值与汉字内码索引值

            {

                if (Chroma_key == 1)

                    BTE_MCU_Write_ColorExpansion_Chroma_key_MCU_8bit(0, canvas_image_width, x + font_size * k, y, font_size, font_size, Foreground_color, code_GB_32[i].Msk); // 透明色

                if (Chroma_key == 0)

                    BTE_MCU_Write_ColorExpansion_MCU_8bit(0, canvas_image_width, x + font_size * k, y, font_size, font_size, Foreground_color, Background_color, code_GB_32[i].Msk); // 非透明色

                break;

            }

        }

    }

}

上例中BTE_MCU_Write_ColorExpansion_Chroma_key_MCU_8bit和BTE_MCU_Write_ColorExpansion_MCU_8bit为瑞佑官方API接口程序,本文暂不缀述。实例显示效果如下图:

自建汉字每个字皆可单独取模,因此可展现不同字体。

附上自建汉字字模数组,汉字取模软件为横向8点左高位,从左到右,从上到下排列。取模的软件可以和我们联络获取。

**
// ------------------  汉字字模的数据结构定义 ------------------------ //

typedef struct typFNT_GB32                // 汉字字模数据结构

{

       signed char Index[2];              // 汉字内码索引

       char Msk[128];                     // 点阵码数据:32*32/8=128

};

/////////////////////////////////////////////////////////////////////////

// 汉字字模表                                                           //

// Font:32,横向取模左高位,数据排列:从左到右从上到下                       //

////////////////////////////////////////////////////////////////////////

struct typFNT_GB32 code_GB_32[] =   // 菱致电子瑞佑科技单片机驱动彩色液晶屏极简方案

{

"菱", 0x00,0x00,0x00,0x00,0x00,0x60,0x06,0x00,

      0x00,0x60,0x06,0x00,0x00,0x60,0x06,0x00,

      0x3F,0xFF,0xFF,0xFC,0x00,0x60,0x06,0x00,

      0x00,0x61,0x06,0x00,0x00,0x41,0x84,0x00,

      0x0F,0xFF,0xFF,0xF0,0x0F,0xFF,0xFF,0xF0,

      0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,

      0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,

      0x00,0x00,0x00,0x00,0x00,0x60,0x0E,0x00,

      0x00,0xE0,0x07,0x00,0x03,0x88,0x01,0xC0,

      0x07,0x18,0x00,0x70,0x3C,0x30,0x00,0x38,

      0x30,0x7F,0xFF,0x0C,0x01,0xE0,0x03,0x00,

      0x03,0xB0,0x07,0x00,0x0E,0x18,0x0C,0x00,

      0x1C,0x0E,0x38,0x00,0x00,0x03,0xE0,0x00,

      0x00,0x03,0xC0,0x00,0x00,0x1F,0x78,0x00,

      0x01,0xF8,0x0F,0xE0,0x3F,0x80,0x00,0xFE,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"致", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x10,0x00,0x3F,0xFF,0x10,0x00,

      0x3F,0xFF,0x10,0x00,0x03,0x00,0x30,0x00,

      0x02,0x08,0x3F,0xFC,0x06,0x0C,0x30,0x20,

      0x04,0x0C,0x30,0x20,0x0C,0x04,0x20,0x20,

      0x08,0x06,0x20,0x20,0x18,0x1E,0x70,0x20,

      0x3F,0xFF,0x70,0x60,0x10,0xC3,0x50,0x60,

      0x00,0xC1,0x50,0x60,0x00,0xC0,0xD8,0x40,

      0x00,0xC0,0x18,0x40,0x00,0xC0,0x08,0xC0,

      0x00,0xC0,0x0C,0xC0,0x3F,0xFE,0x0D,0x80,

      0x00,0xC0,0x07,0x80,0x00,0xC0,0x07,0x00,

      0x00,0xC0,0x03,0x00,0x00,0xC0,0x07,0x80,

      0x00,0xC0,0x0D,0x80,0x00,0xC7,0x18,0xC0,

      0x00,0xFE,0x30,0x60,0x03,0xF0,0x60,0x30,

      0x3F,0x01,0xC0,0x18,0x30,0x01,0x80,0x0C,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"电", 0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,

      0x00,0x03,0x00,0x00,0x00,0x03,0x00,0x00,

      0x00,0x03,0x00,0x00,0x0F,0xFF,0xFF,0xE0,

      0x1F,0xFF,0xFF,0xE0,0x10,0x03,0x00,0x20,

      0x10,0x03,0x00,0x20,0x10,0x03,0x00,0x20,

      0x10,0x03,0x00,0x20,0x10,0x03,0x00,0x20,

      0x1F,0xFF,0xFF,0xE0,0x1F,0xFF,0xFF,0xE0,

      0x10,0x03,0x00,0x20,0x10,0x03,0x00,0x20,

      0x10,0x03,0x00,0x20,0x10,0x03,0x00,0x20,

      0x10,0x03,0x00,0x20,0x10,0x03,0x00,0x20,

      0x10,0x03,0x00,0x20,0x1F,0xFF,0xFF,0xE0,

      0x07,0xFF,0xFF,0x80,0x00,0x03,0x00,0x06,

      0x00,0x03,0x00,0x06,0x00,0x03,0x00,0x06,

      0x00,0x03,0x00,0x04,0x00,0x03,0x00,0x0C,

      0x00,0x01,0xFF,0xFC,0x00,0x00,0xFF,0xF0,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"子", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x07,0xFF,0xFF,0x80,0x07,0xFF,0xFF,0x80,

      0x00,0x00,0x03,0x80,0x00,0x00,0x06,0x00,

      0x00,0x00,0x1C,0x00,0x00,0x00,0x38,0x00,

      0x00,0x00,0xE0,0x00,0x00,0x03,0x80,0x00,

      0x00,0x07,0x00,0x00,0x00,0x03,0x00,0x00,

      0x00,0x01,0xC0,0x00,0x00,0x00,0xE0,0x00,

      0x3F,0xFF,0xFF,0xFE,0x3F,0xFF,0xFF,0xFE,

      0x00,0x00,0x30,0x00,0x00,0x00,0x18,0x00,

      0x00,0x00,0x18,0x00,0x00,0x00,0x18,0x00,

      0x00,0x00,0x18,0x00,0x00,0x00,0x08,0x00,

      0x00,0x00,0x08,0x00,0x00,0x00,0x08,0x00,

      0x00,0x00,0x18,0x00,0x00,0x00,0x18,0x00,

      0x01,0x00,0x18,0x00,0x01,0xC0,0x70,0x00,

      0x00,0xFF,0xE0,0x00,0x00,0x1F,0x80,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"瑞", 0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,

      0x00,0x00,0x3F,0x00,0x00,0x07,0xBF,0x7C,

      0x3F,0xF7,0xBF,0x7C,0x7F,0xF7,0xBF,0x7C,

      0x7F,0xFF,0xBF,0x7C,0x7F,0xF7,0xFF,0xFC,

      0x3F,0xF7,0xFF,0xFC,0x0F,0xE7,0xFF,0xFC,

      0x0F,0xCF,0xFF,0xF8,0x0F,0xC0,0x00,0x00,

      0x0F,0xDF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFE,

      0x3F,0xFF,0xFF,0xFE,0x3F,0xFF,0xFF,0xFE,

      0x3F,0xDF,0xFF,0xFC,0x3F,0xC0,0x7E,0x00,

      0x1F,0xCF,0xFF,0xF8,0x0F,0xDF,0xFF,0xFC,

      0x0F,0xDF,0xFF,0xFC,0x0F,0xEF,0xFF,0xFC,

      0x3F,0xF7,0x77,0x7C,0x7F,0xF7,0x77,0x7C,

      0x7F,0xF7,0x77,0x7C,0x7F,0xF7,0x77,0x7C,

      0x7F,0xFF,0x76,0xFC,0x10,0x1F,0x75,0xFC,

      0x00,0x1F,0x75,0xFC,0x00,0x1F,0x75,0xFC,

      0x00,0x1F,0x75,0xFC,0x00,0x00,0x00,0x00,

"佑", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x01,0xF8,0x7F,0x00,0x01,0xF8,0x7F,0x00,

      0x03,0xF8,0x7F,0x00,0x03,0xE0,0x7F,0x00,

      0x03,0xCF,0xFF,0xFE,0x07,0xDF,0xFF,0xFF,

      0x07,0xDF,0xFF,0xFF,0x07,0xDF,0xFF,0xFF,

      0x0F,0xDF,0xFF,0xFF,0x1F,0xCF,0xFF,0xFE,

      0x1F,0xE3,0xFC,0x00,0x3F,0xE3,0xF8,0x00,

      0x3F,0xE7,0xC0,0x00,0x3F,0xEF,0x9F,0xF8,

      0x1F,0xCF,0xBF,0xFE,0x0F,0x9F,0xBF,0xFE,

      0x07,0xBF,0xBF,0xFE,0x07,0xBF,0xBF,0xFE,

      0x07,0xBF,0xBF,0xFE,0x07,0x9F,0x38,0x7E,

      0x07,0xCE,0x78,0x7E,0x07,0xE0,0xF8,0x7E,

      0x07,0xE1,0xF8,0x7E,0x07,0xE1,0xFF,0xFE,

      0x07,0xE1,0xFF,0xFE,0x07,0xE1,0xFF,0xFE,

      0x07,0xE1,0xFF,0xFE,0x07,0xE1,0xFF,0xFE,

      0x07,0xE0,0xFF,0xFC,0x00,0x00,0x00,0x00,

"科", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x1F,0xFE,0x01,0xF0,0x3F,0xFE,0x63,0xF8,

      0x3F,0xFC,0xF9,0xF8,0x3F,0xFD,0xFC,0xF8,

      0x3F,0xFD,0xFE,0x78,0x1F,0xF9,0xFF,0x78,

      0x07,0xF1,0xFF,0x78,0x3F,0xFE,0x3E,0x78,

      0x7F,0xFE,0x0C,0xF8,0x7F,0xFD,0xF1,0xF8,

      0x7F,0xFD,0xF9,0xF8,0x7F,0xFB,0xFE,0xF8,

      0x3F,0x81,0xFE,0x78,0x07,0x31,0xFE,0x78,

      0x0E,0xF8,0x7E,0xF8,0x0E,0xFC,0x1C,0xF8,

      0x1E,0xFE,0x01,0xFC,0x3E,0x7E,0x07,0xFE,

      0x7F,0x7E,0xFF,0xFE,0x7F,0xBC,0xFF,0xFE,

      0x7F,0x89,0xFF,0xFE,0x7F,0xE7,0xFF,0xFE,

      0x3F,0xF7,0xFF,0xF8,0x07,0xF3,0x83,0xF8,

      0x07,0xF0,0x03,0xF8,0x07,0xF0,0x03,0xF8,

      0x07,0xF0,0x03,0xF8,0x07,0xF0,0x03,0xF8,

      0x03,0xE0,0x01,0xF8,0x00,0x00,0x00,0x00,

"技", 0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,

      0x07,0xC0,0x3F,0x00,0x07,0xE0,0x3F,0x00,

      0x07,0xE0,0x3F,0x00,0x07,0xE0,0x7F,0x80,

      0x0F,0xE7,0xFF,0xFC,0x3F,0xEF,0xFF,0xFE,

      0x7F,0xEF,0xFF,0xFE,0x7F,0xEF,0xFF,0xFE,

      0x7F,0xEF,0xFF,0xFC,0x7F,0xF3,0xFF,0xF8,

      0x1F,0xF0,0x3F,0x00,0x07,0xE1,0xFF,0xF0,

      0x07,0xE7,0xFF,0xF8,0x07,0xF7,0xFF,0xFC,

      0x3F,0xF7,0xFF,0xFC,0x7F,0xF7,0xFF,0xFC,

      0x7F,0xF7,0xF1,0xF8,0x7F,0xF3,0xF1,0xF8,

      0x7F,0xF3,0xFF,0xF8,0x3F,0xE1,0xFF,0xF0,

      0x07,0xE1,0xFF,0xE0,0x07,0xE0,0xFF,0xC0,

      0x07,0xE3,0xFF,0xF0,0x3F,0xCF,0xFF,0xFC,

      0x3F,0xDF,0xFF,0xFE,0x7F,0xDF,0xFF,0xFE,

      0x7F,0xDF,0xF3,0xFE,0x7F,0xDF,0xE0,0xFE,

      0x3F,0xCF,0x80,0x7C,0x00,0x00,0x00,0x00,

"单", 0x00,0x00,0x00,0x00,0x00,0x01,0x38,0x00,

      0x00,0x03,0x3C,0x00,0x00,0x3E,0x38,0x00,

      0x00,0x3E,0x70,0x00,0x00,0x3C,0xE0,0x00,

      0x00,0x1C,0xE0,0x00,0x00,0x1D,0xFC,0x00,

      0x00,0x07,0xFE,0x00,0x00,0x0F,0xCF,0x00,

      0x00,0xB3,0x8F,0x00,0x00,0xC3,0xCF,0x00,

      0x00,0xEF,0xFE,0x00,0x00,0x7F,0xDC,0x00,

      0x00,0x7F,0x9C,0x00,0x00,0x63,0xF8,0x00,

      0x00,0x7F,0xF8,0x00,0x00,0x3F,0xF0,0x00,

      0x00,0x1F,0x9F,0xC0,0x00,0x07,0xFF,0xE0,

      0x00,0x3F,0x80,0x60,0x01,0xFB,0x80,0x00,

      0x0F,0xC3,0x80,0x00,0x0F,0x03,0x80,0x00,

      0x0C,0x03,0x80,0x00,0x00,0x03,0x80,0x00,

      0x00,0x03,0x80,0x00,0x00,0x01,0x80,0x00,

      0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,

      0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,

"片", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0xE0,0x00,0x00,0x00,0x78,0x00,

      0x00,0x00,0x38,0x00,0x00,0x20,0x38,0x00,

      0x00,0x38,0x30,0x00,0x00,0x1C,0x30,0x00,

      0x00,0x1C,0x7C,0x00,0x00,0x1C,0x7E,0x00,

      0x00,0x1B,0xFE,0x00,0x00,0x1F,0xF0,0x00,

      0x00,0x19,0xC0,0x00,0x00,0x1A,0x00,0x00,

      0x00,0x18,0x1F,0x80,0x00,0x19,0xFF,0xC0,

      0x00,0x1F,0xD8,0x00,0x00,0x1E,0x18,0x00,

      0x00,0x18,0x18,0x00,0x00,0x38,0x18,0x00,

      0x00,0x30,0x18,0x00,0x00,0x30,0x18,0x00,

      0x00,0x70,0x18,0x00,0x00,0xE0,0x18,0x00,

      0x00,0xC0,0x18,0x00,0x00,0x40,0x18,0x00,

      0x00,0x00,0x18,0x00,0x00,0x00,0x18,0x00,

      0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"机", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x30,0x00,0x00,0x00,0x18,0x00,0x00,

      0x00,0x18,0x00,0x00,0x00,0x18,0x06,0x00,

      0x00,0x38,0x0F,0x00,0x00,0x3D,0x1F,0x80,

      0x00,0x3E,0xBF,0x00,0x00,0xFC,0xC7,0x00,

      0x01,0xF0,0xC6,0x00,0x2F,0xF0,0xC6,0x00,

      0x1F,0xB4,0xC6,0x00,0x1F,0x34,0x8E,0x00,

      0x06,0x78,0x8C,0x00,0x00,0x70,0x8C,0x40,

      0x00,0xF1,0x8C,0x20,0x03,0xE1,0x8C,0x30,

      0x07,0xE1,0x8C,0x10,0x07,0xE1,0x8C,0x18,

      0x03,0x61,0x0E,0x1C,0x00,0x63,0x07,0xFE,

      0x00,0x62,0x01,0xF8,0x00,0x60,0x00,0x00,

      0x00,0x20,0x00,0x00,0x00,0x20,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"驱", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x1E,0x03,0xC0,0x00,0xFF,0x1F,0xC0,

      0x00,0x7F,0x0F,0x80,0x00,0x3F,0x10,0x00,

      0x00,0x0E,0x20,0x00,0x00,0x8E,0x31,0xC0,

      0x00,0x8E,0x30,0xE0,0x01,0x8C,0x30,0xE0,

      0x01,0x9C,0x38,0xE0,0x01,0x9C,0x3E,0xC0,

      0x01,0x9C,0x3F,0xC0,0x01,0xFF,0x23,0xE0,

      0x03,0xFF,0xA3,0xE0,0x03,0xC3,0xA7,0xF0,

      0x01,0x83,0xBF,0x70,0x00,0x33,0x6C,0x30,

      0x03,0xE3,0x60,0x00,0x1F,0xC7,0x60,0x70,

      0x1F,0x87,0x7F,0xF8,0x0E,0x8E,0x3F,0xFC,

      0x08,0x7E,0x18,0x00,0x00,0x1C,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"动", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x00,

      0x00,0x7E,0x07,0x00,0x00,0x7F,0x07,0x00,

      0x00,0x3F,0x0B,0x00,0x00,0x1E,0x0B,0x00,

      0x00,0x38,0x07,0xC0,0x00,0x60,0x1F,0xE0,

      0x01,0xC7,0x3F,0xE0,0x03,0x3F,0xFE,0x60,

      0x04,0xFE,0x4C,0x60,0x0F,0xFC,0xDC,0x60,

      0x0F,0xFC,0x9C,0x60,0x0F,0xFB,0x98,0xC0,

      0x07,0x73,0x98,0xC0,0x00,0xE7,0xB8,0xC0,

      0x01,0xDF,0xB8,0xC0,0x01,0xFD,0xE8,0xC0,

      0x01,0xF0,0x6D,0x80,0x00,0xE0,0x47,0x80,

      0x00,0x40,0xC7,0x80,0x00,0x00,0x87,0x00,

      0x00,0x01,0x02,0x00,0x00,0x02,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"彩", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,

      0x00,0x07,0x80,0x00,0x00,0x0F,0x84,0x00,

      0x00,0x3F,0x87,0x00,0x00,0x70,0x07,0xC0,

      0x00,0xC7,0xC3,0xC0,0x00,0x7C,0xC3,0xC0,

      0x01,0x99,0xC7,0x80,0x01,0x8B,0x8E,0x00,

      0x01,0xCF,0x1E,0x00,0x00,0xDF,0x9F,0x80,

      0x00,0x7F,0xA1,0x80,0x01,0xFC,0x21,0xC0,

      0x07,0xEC,0x43,0x80,0x1F,0x8E,0x47,0x00,

      0x7F,0x0C,0x8F,0x00,0x7C,0x1D,0x1F,0xC0,

      0x00,0x3E,0x18,0xE0,0x00,0x7C,0x10,0xE0,

      0x03,0xF8,0x00,0xE0,0x07,0xF8,0x01,0xC0,

      0x07,0x98,0x03,0x80,0x00,0x08,0x07,0x00,

      0x00,0x08,0x0E,0x00,0x00,0x08,0x18,0x00,

      0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"色", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x03,0x00,0x00,0x00,0x03,0x80,0x00,

      0x00,0x07,0x80,0x00,0x00,0x0F,0x80,0x00,

      0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,

      0x00,0x38,0xF0,0x00,0x00,0x31,0xC0,0x00,

      0x00,0x23,0x80,0x00,0x00,0x07,0xF8,0x00,

      0x00,0x0F,0xFC,0x00,0x00,0x3F,0x1E,0x00,

      0x00,0xFF,0x9C,0x00,0x00,0xF3,0x98,0x00,

      0x00,0x63,0x38,0x00,0x00,0x67,0xF0,0x00,

      0x00,0x7F,0xF8,0x00,0x00,0xFC,0x00,0x00,

      0x00,0xF0,0x00,0x20,0x00,0xC0,0x00,0x20,

      0x00,0xC0,0x00,0x20,0x00,0xC0,0x00,0x60,

      0x00,0xC0,0x00,0x60,0x00,0x70,0x03,0xF0,

      0x00,0x3F,0xFF,0xF0,0x00,0x0F,0xFF,0xC0,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"液", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x01,0xC0,0x00,0x00,0x03,0xF0,0x00,

      0x00,0x83,0xF0,0x00,0x00,0xC2,0xF0,0x00,

      0x00,0xE3,0x90,0x00,0x00,0x76,0x38,0x00,

      0x00,0x71,0xFC,0x00,0x00,0xFF,0xFC,0x00,

      0x00,0x0F,0xF0,0x00,0x08,0x07,0xE0,0x00,

      0x18,0x01,0xFF,0x00,0x18,0x03,0x9F,0x00,

      0x1E,0x0F,0x3B,0x80,0x0F,0x1E,0x33,0x00,

      0x07,0x2E,0x77,0x00,0x07,0x3E,0xFE,0x00,

      0x07,0x3E,0xDC,0x00,0x06,0x77,0x9C,0x00,

      0x06,0xEF,0xF8,0x00,0x07,0x4C,0x78,0x00,

      0x07,0x0C,0x7C,0x00,0x07,0x0C,0x1F,0x00,

      0x07,0x0C,0x0F,0xE0,0x07,0x0C,0x07,0xF8,

      0x02,0x0C,0x01,0xFC,0x00,0x04,0x00,0x1C,

      0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"晶", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x01,0xF8,0x00,

      0x00,0x07,0xFC,0x00,0x00,0x3F,0x9C,0x00,

      0x00,0x30,0x1C,0x00,0x00,0x18,0x1C,0x00,

      0x00,0x1F,0xD8,0x00,0x00,0x1F,0xD8,0x00,

      0x00,0x1E,0x18,0x00,0x00,0x18,0x18,0x00,

      0x00,0x1F,0xF8,0x00,0x00,0x1F,0xF0,0x00,

      0x00,0x08,0x7F,0x80,0x00,0x00,0x3F,0x80,

      0x00,0x0C,0xF3,0xC0,0x00,0x3E,0xC3,0xC0,

      0x01,0xC6,0xC3,0x80,0x01,0x86,0xFB,0x80,

      0x01,0xFE,0xFF,0x80,0x01,0xF6,0xC3,0x80,

      0x00,0xC6,0xC3,0x80,0x00,0xC6,0xFB,0x80,

      0x00,0xFE,0xFF,0x80,0x00,0xFE,0x43,0x80,

      0x00,0xE6,0x03,0x00,0x00,0x44,0x03,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"屏", 0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x00,

      0x00,0x01,0xFE,0x00,0x00,0x07,0xFE,0x00,

      0x00,0x0B,0xFE,0x00,0x00,0x1C,0x9C,0x00,

      0x00,0x0C,0x38,0x00,0x00,0x1F,0xF8,0x00,

      0x00,0x1F,0xFC,0x00,0x00,0x3F,0x08,0x00,

      0x00,0x34,0x7E,0x00,0x00,0x37,0x8C,0x00,

      0x00,0x67,0x18,0x00,0x00,0x63,0x7C,0x00,

      0x00,0xC3,0xFC,0x00,0x00,0xDF,0xFC,0x00,

      0x01,0x87,0xCC,0x00,0x01,0x87,0x0C,0xC0,

      0x01,0x06,0xFF,0xE0,0x03,0x0F,0xFD,0xF0,

      0x07,0x3F,0x0C,0x00,0x06,0xFE,0x0C,0x00,

      0x0E,0xF6,0x0C,0x00,0x0C,0x06,0x0C,0x00,

      0x18,0x0E,0x0C,0x00,0x30,0x0E,0x0C,0x00,

      0x60,0x0C,0x0C,0x00,0x00,0x08,0x0C,0x00,

      0x00,0x00,0x0C,0x00,0x00,0x00,0x0C,0x00,

      0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,

"极", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,

      0x00,0x38,0x00,0x00,0x00,0x1C,0x06,0x00,

      0x00,0x1C,0x0F,0x00,0x00,0x1C,0x3D,0x80,

      0x00,0x3E,0x79,0x80,0x00,0xFE,0xF1,0x80,

      0x01,0xFD,0xF9,0x80,0x27,0xF8,0xF3,0x00,

      0x1F,0xF9,0x73,0x00,0x1F,0xBA,0x67,0x00,

      0x0F,0x3C,0xE3,0x80,0x06,0x38,0xC3,0x80,

      0x00,0x39,0xC0,0xC0,0x00,0x71,0xC0,0xC0,

      0x00,0xFF,0xF0,0xC0,0x01,0xF3,0xFD,0xC0,

      0x03,0xE3,0x1F,0x80,0x03,0xE7,0x0F,0xC0,

      0x01,0xE6,0x0F,0xE0,0x01,0x37,0x3F,0xF0,

      0x00,0x34,0xF8,0xF8,0x00,0x34,0x20,0x3C,

      0x00,0x10,0x00,0x1C,0x00,0x10,0x00,0x04,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"简", 0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x00,

      0x00,0x00,0x0E,0x00,0x00,0x10,0x0E,0x00,

      0x00,0x18,0x1E,0x00,0x00,0x3C,0xBF,0xC0,

      0x00,0x79,0xBF,0xC0,0x00,0xFF,0x3F,0x80,

      0x01,0xFF,0x16,0x00,0x01,0xF6,0x1C,0x00,

      0x01,0xC0,0x7E,0x00,0x00,0x01,0xFF,0x00,

      0x00,0x07,0xCF,0x00,0x00,0x1C,0x07,0x80,

      0x00,0x18,0x07,0x80,0x00,0x3B,0xC3,0x80,

      0x00,0xA3,0xE3,0x80,0x00,0xCC,0x63,0x80,

      0x00,0xCC,0x63,0x80,0x00,0x8F,0xE3,0x80,

      0x00,0x4F,0x63,0x80,0x00,0x4C,0x67,0x80,

      0x00,0x8F,0xE7,0x80,0x00,0x8F,0xC7,0x80,

      0x00,0x86,0xC7,0x80,0x01,0x80,0x47,0x80,

      0x01,0x80,0x3F,0x80,0x00,0x80,0x1F,0x80,

      0x00,0x00,0x07,0x80,0x00,0x00,0x03,0x00,

      0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,

"方", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x03,0x80,0x00,0x00,0x03,0xE0,0x00,

      0x00,0x01,0xE0,0x00,0x00,0x00,0xF0,0x00,

      0x00,0x01,0xF0,0x00,0x00,0x03,0x80,0x00,

      0x00,0x1C,0x3F,0xE0,0x00,0x0F,0xE3,0xF0,

      0x00,0xFF,0xCE,0x00,0x0F,0xF8,0xF0,0x00,

      0x0F,0xE0,0xE0,0x00,0x0F,0x81,0xF8,0x00,

      0x06,0x01,0xFE,0x00,0x00,0x03,0x87,0x00,

      0x00,0x07,0x07,0x00,0x00,0x0E,0x07,0x00,

      0x00,0x1C,0x0E,0x00,0x00,0x3A,0x0E,0x00,

      0x00,0x72,0x1C,0x00,0x00,0xE2,0x38,0x00,

      0x01,0x83,0x78,0x00,0x01,0x03,0xF0,0x00,

      0x00,0x01,0xE0,0x00,0x00,0x01,0xC0,0x00,

      0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

"案", 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0xE0,0x00,0x00,0x00,0x60,0x00,

      0x00,0x00,0x7C,0x00,0x00,0x00,0xCF,0x00,

      0x00,0x09,0x8F,0x00,0x00,0x0F,0x9E,0x00,

      0x00,0x1F,0xBC,0x00,0x00,0x3E,0xF8,0x00,

      0x00,0x1D,0x7B,0xE0,0x00,0x19,0xFF,0xF0,

      0x00,0x0F,0x70,0x00,0x01,0xFE,0x70,0x00,

      0x0F,0xCF,0xE0,0x00,0x1F,0x0F,0xF8,0x00,

      0x00,0x03,0xFE,0x00,0x00,0x0F,0x8E,0x00,

      0x00,0xFF,0xE3,0x00,0x00,0x00,0xFF,0x00,

      0x00,0x3F,0xE0,0x00,0x00,0x1C,0x60,0x00,

      0x00,0x00,0x60,0x00,0x00,0x02,0x67,0x00,

      0x00,0x3C,0x63,0x80,0x00,0x38,0xE1,0x80,

      0x00,0x31,0xE0,0x80,0x00,0x20,0xC0,0x00,

      0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,

      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00

};

二、需求全套中文,字数多必然需要更多存储空间,那么可以存放到FLASH中。

这里所讲的FLASH是与RA8889 / RA8876连接的,一般是用来存放UI所需的图资,也可以将字库存放于此,这样不需要增加成本,但可节省掉外接字库芯片的成本!

框架图:

自建字库不限套数,单套占用容量不大,比如24x24点是576KB。这里提供的算法是通过RA8889 / RA8876的DMA(Direct Memory Access)功能获取到字符数据,再通过BTE(Block Transfer Engine)功能将文字显示出来。经过优化,目前显示速度还算不错,参考下方展示视频:

调用代码范例:

**
    // 演示自建字库调用

    BTE_Solid_Fill(display_address, canvas_image_width, 0, 0, 0x01, LCD_width, LCD_height); // 缓存显示区域:填充底色0x01;display_address此处自定义为canvas_image_width*LCD_height*24/8

    SPI_NOR_initial_DMA(0, Font_BUS, Font_CS, 1, 0);    //FLASH初始化

    User_Def_Font_Initial();    //显示自定义文字初始化

    Font_Size_ChromaKey_ForeColor_BackColor(24, 1, color256_red, color256_white);    //字体参数设定(最多256色)

    Show_User_Def_String("自建汉字库:宋体16x16演示", songti16, 16, 2, 50, 20);    //显示字符串

    Show_User_Def_String("自建汉字库:楷体16x16演示", kaiti16, 16, 2, 50, 45);    //显示字符串

    Show_User_Def_String("自建汉字库:黑体16x16演示", heiti16, 16, 2, 50, 70);    //显示字符串

    Font_Size_ChromaKey_ForeColor_BackColor(24, 1, color256_blue, color256_white);    //字体参数设定(最多256色)

    Show_User_Def_String("自建汉字库:宋体24x24演示", songti24, 24, 2, 50, 100);    //显示字符串

    Show_User_Def_String("自建汉字库:楷体24x24演示", kaiti24, 24, 2, 50, 125);    //显示字符串

    Show_User_Def_String("自建汉字库:黑体24x24演示", heiti24, 24, 2, 50, 150);    //显示字符串

    Font_Size_ChromaKey_ForeColor_BackColor(32, 0, color256_yellow, color256_black);    //字体参数设定(最多256色)

    Show_User_Def_String("自建汉字库:宋体32x32演示", songti32, 32, 0, 50, 200);    //显示字符串

    Show_User_Def_String("自建汉字库:楷体32x32演示", kaiti32, 32, 0, 50, 240);    //显示字符串

    Show_User_Def_String("自建汉字库:黑体32x32演示", heiti32, 32, 0, 50, 280);    //显示字符串

 // 图层S0色深恢复初始化状态

 #if defined(MCU_8bit_ColorDepth_8bpp)

  BTE_S0_Color_8bpp();

 #endif

 #if defined(MCU_8bit_ColorDepth_16bpp) || defined(MCU_16bit_ColorDepth_16bpp)

  BTE_S0_Color_16bpp();

 #endif

 #if defined(MCU_8bit_ColorDepth_24bpp) || defined(MCU_16bit_ColorDepth_24bpp_Mode_1) || defined(MCU_16bit_ColorDepth_24bpp_Mode_2)

  BTE_S0_Color_24bpp();

 #endif

    BTE_Memory_Copy_Chroma_key(display_address, canvas_image_width, 0, 0, 0, canvas_image_width, 0, 0, 0x01, LCD_width, LCD_height); // 缓存写好的文字搬移到显示层,剔除底色0x01

 

上方代码显示实例:

RA8889内建128Mb SDRAM作为显存,显存是自由定义的,这里我们设定为画布宽度(canvas_image_width)为800,测试的屏宽(LCD_width)为800,屏高(LCD_height)为480,将显存规划为主显示层、缓冲层S0、缓冲层S1…如下图示:

实际操作分为三步:

DMA(线性):RA8889寻址获取字符数据并通过DMA方式写入缓存S1;

转置:MCU对缓存S1的数据转置后写入缓存S0,同时给文字加上前景、背景色或者透明色;

BTE剔除底色:RA8889内建BTE功能,可将底色剔除后再复制到主显示层,因此可以形成文字的透明效果。

附上算法程序供参考:

 

**
_/***************************************************************************************

 * @file RA8889_Show_User_Def_FontLib_bitPic.c

 * @author Weran

 * @version 3.0

 * @date 2023/08/16

 * @brief   显示用户自定义字库或者单色位图,宽度为8的倍数,字形长宽相等,位图不限高度

 * @copyright [www.lcdvision.com.cn](/)

 ****************************************************************************************/

#include "RA8889.h"

#include "RA8889_MCU_IF.h"

#include "RA8889_API.h"

#include "delay.h"

#include "RA8889_Show_User_Def_FontLib_bitPic.h"

#include "string.h"_

_/*****************************************

// 自建汉字库初始化

******************************************/

void User_Def_Font_Initial(void)

{

    SPI_Clock_Period(2);

    Select_SFI_Single_Mode_Dummy_8T_0Bh();

    Enable_SFlash_SPI();_

_    #ifdef Over_128Mb // FLASH大小超过128Mb,切换为32位寻址

        switch_24bits_to_32bits(Font_BUS, Font_CS);

        Select_SFI_32bit_Address();

    #else

        Select_SFI_24bit_Address();

    #endif_

_    switch (Font_CS) {

        case 0:

            Select_SFI_0();

            break;

        case 1:

            Select_SFI_1();

            break;

        case 2:

            Select_SFI_2();

            break;

        case 3:

            Select_SFI_3();

            break;

    }_

_    Select_SFI_DMA_Mode();

    SFI_DMA_Destination_Start_Address(cache_address);_

_    BTE_S0_Memory_Start_Address(cache_address); // 缓存图层

    BTE_S0_Image_Width(main_image_width);

    BTE_S0_Color_8bpp(); // 缓存色深固定8bit,不可变更_

_    BTE_Destination_Memory_Start_Address(display_address); // 显示到目的图层

    BTE_Destination_Image_Width(main_image_width);_

_    // 目的窗口色深

    #if defined(MCU_8bit_ColorDepth_8bpp)

        BTE_Destination_Color_8bpp();

    #endif

    #if defined(MCU_8bit_ColorDepth_16bpp) || defined(MCU_16bit_ColorDepth_16bpp)

        BTE_Destination_Color_16bpp();

    #endif

    #if defined(MCU_8bit_ColorDepth_24bpp) || defined(MCU_16bit_ColorDepth_24bpp_Mode_1) || defined(MCU_16bit_ColorDepth_24bpp_Mode_2)

        BTE_Destination_Color_24bpp();

    #endif_

_    BTE_Window_Size(8, 1); // 每次延展的区块大小:8x1

    BTE_ROP_Code(15);

}_

_/*****************************************

// 字体显示效果设定函数

// Font_Size:字型大小

// ChromaKey:0-不透明;1-透明

// Foreground_color:前景色,最多256色

// Foreground_color:背景色,最多256色

******************************************/

void Font_Size_ChromaKey_ForeColor_BackColor(unsigned short Font_Size, unsigned char ChromaKey, unsigned char Foreground_color, unsigned char Background_color)

{

    SFI_DMA_Transfer_Number(Font_Size * Font_Size / 8); // DMA单个汉字字节数_

_    Foreground_color_256(Foreground_color);_

_    if (ChromaKey == 1 && Foreground_color == Background_color)

        Background_color_256(Background_color >> 1); // 当选择透明色时前景色与背景色不能一样,移1位区别

    else

        Background_color_256(Background_color);_

_    if (ChromaKey == 0)

        BTE_Operation_Code(14); // 背景非透明

    else if (ChromaKey == 1)

        BTE_Operation_Code(15); // 背景透明

}_

_/*****************************************************

// 显示字符串函数

// str:字符串

// Font_Lib_Offset:汉字库在FLASH中地址偏移,宏定义预设

// Font_Size:字型大小

// Font_Gap:字符间距

// x & y:字符串显示坐标

******************************************************/

void Show_User_Def_String(char *str, unsigned int Font_Lib_Offset, unsigned short Font_Size, unsigned char Font_Gap, unsigned short x, unsigned short y)

{

    unsigned char i, len;

    unsigned short hanziIndex;

    const char hanziCode[200];_

_    strcpy((char *)hanziCode, str);

    len = strlen(&*hanziCode) / 2;_

_    for (i = 0; i < len; i++) {

        hanziIndex = 94 * (hanziCode[2 * i] - 0xA1) + (hanziCode[2 * i + 1] - 0xA1); // 汉字区码、位码均起始0xA1

        Show_User_Def_Font(hanziIndex, Font_Lib_Offset, Font_Size, x + Font_Size * i + Font_Gap * (i - 1), y);

    }

}_

_/**********************************************************

// 显示自定义汉字函数

// 注意:字宽必须为8的倍数

// hanziIndex:汉字在国标码中的位置

// Font_Lib_Offset:汉字库在FLASH中地址偏移,宏定义预设

// Font_Size:字型大小

// x & y:字符显示坐标

**********************************************************/

void Show_User_Def_Font(unsigned short hanziIndex, unsigned int Font_Lib_Offset, unsigned short Font_Size, unsigned short x, unsigned short y)

{

    unsigned char i, j;

    unsigned short Width_Byte = Font_Size / 8; // 宽度按字节数

    unsigned short Font_Byte  = 0;             // 单个字体字节计数_

_    Memory_Linear_Mode(); // 线性模式

    SFI_DMA_Source_Start_Address(Font_Size * Font_Size / 8 * hanziIndex + Font_Lib_Offset);

    Start_SFI_DMA();

    Check_Busy_SFI_DMA();

    Memory_XY_Mode(); // 区块模式_

_    /*在8bpp模式下先进行转置并延展,再上色*/

    for (i = 0; i < Font_Size; i++) // 字高,每次处理1bit=1点

    {

        for (j = 0; j < Width_Byte; j++) // 字宽

        {

            BTE_S0_Window_Start_XY(Font_Byte++, 0);            // 每次处理1byte=8点

            BTE_Destination_Window_Start_XY(x + 8 * j, y + i); // 转置+延展

            BTE_Enable();

            Check_BTE_Busy();

        }

    }

}_

_/*****************************************

// 单色位图显示初始化

// Pic_Width:图片宽度

// Pic_Height:图片高度

// ChromaKey:0-不透明;1-透明

// Foreground_color:前景色,最多256色

// Foreground_color:背景色,最多256色

******************************************/

void Bit_Picture_Initial(unsigned short Pic_Width, unsigned short Pic_Height, unsigned char ChromaKey, unsigned char Foreground_color, unsigned char Background_color)

{_

_    SPI_Clock_Period(2);

    Select_SFI_Single_Mode_Dummy_8T_0Bh();

    Enable_SFlash_SPI();_

_    #ifdef Over_128Mb // FLASH大小超过128Mb,切换为32位寻址

        switch_24bits_to_32bits(Font_BUS, Font_CS);

        Select_SFI_32bit_Address();

    #else

        Select_SFI_24bit_Address();

    #endif_

_    switch (Font_CS) {

        case 0:

            Select_SFI_0();

            break;

        case 1:

            Select_SFI_1();

            break;

        case 2:

            Select_SFI_2();

            break;

        case 3:

            Select_SFI_3();

            break;

    }_

_    Select_SFI_DMA_Mode();

    SFI_DMA_Destination_Start_Address(cache_address);_

_    BTE_S0_Memory_Start_Address(cache_address); // 缓存图层

    BTE_S0_Image_Width(main_image_width);

    BTE_S0_Color_8bpp(); // 缓存色深固定8bit,不可变更_

_    BTE_Destination_Memory_Start_Address(display_address); // 显示到目的图层

    BTE_Destination_Image_Width(main_image_width);_

_    // 目的窗口色深

    #if defined(MCU_8bit_ColorDepth_8bpp)

        BTE_Destination_Color_8bpp();

    #endif

    #if defined(MCU_8bit_ColorDepth_16bpp) || defined(MCU_16bit_ColorDepth_16bpp)

        BTE_Destination_Color_16bpp();

    #endif

    #if defined(MCU_8bit_ColorDepth_24bpp) || defined(MCU_16bit_ColorDepth_24bpp_Mode_1) || defined(MCU_16bit_ColorDepth_24bpp_Mode_2)

        BTE_Destination_Color_24bpp();

    #endif_

_    BTE_Window_Size(8, 1);                               // 每次延展的区块大小:8x1

    SFI_DMA_Transfer_Number(Pic_Width * Pic_Height / 8); // DMA单张图片字节字节数_

_    Foreground_color_256(Foreground_color);_

_    if (ChromaKey == 1 && Foreground_color == Background_color)

        Background_color_256(Background_color >> 1); // 当选择透明色时前景色与背景色不能一样,移1位区别

    else

        Background_color_256(Background_color);_

_    BTE_ROP_Code(15);

    if (ChromaKey == 0)

        BTE_Operation_Code(14); // 背景非透明

    else if (ChromaKey == 1)

        BTE_Operation_Code(15); // 背景透明

}_

_/**********************************************************

// 显示单色位图函数

// 注意:图片宽度必须为8的倍数

// Pic_Offset:图片在FLASH中地址偏移

// Pic_Width:图片宽度(必须为8的倍数)

// Pic_Height:图片高度

// x & y:图片显示坐标

**********************************************************/

void Show_Bit_Picture(unsigned int Pic_Offset, unsigned short Pic_Width, unsigned short Pic_Height, unsigned short x, unsigned short y)

{

    unsigned char i, j;

    unsigned short Pic_Width_Byte = Pic_Width / 8; // 宽度按字节数

    unsigned short Pic_Byte       = 0;             // 单张图片字节计数_

_    Memory_Linear_Mode(); // 线性模式

    SFI_DMA_Source_Start_Address(Pic_Offset);

    Start_SFI_DMA();

    Check_Busy_SFI_DMA();

    Memory_XY_Mode(); // 区块模式_

_    /*在8bpp模式下先进行转置并延展,再上色*/

    for (i = 0; i < Pic_Height; i++) // 图片高,每次处理1bit=1点

    {

        for (j = 0; j < Pic_Width_Byte; j++) // 图片宽度,按字节数

        {

            BTE_S0_Window_Start_XY(Pic_Byte++, 0);             // 每次处理1byte=8点

            BTE_Destination_Window_Start_XY(x + 8 * j, y + i); // 转置+延展

            BTE_Enable();

            Check_BTE_Busy();

        }

    }

}_

函数声明及宏定义:

**
/****************************************************************************************

  * @file  RA8889_Show_User_Def_FontLib_bitPic.h

  * @author  Weran

  * @version 3.0

  * @date  2023/08/16

  * @brief   显示用户自定义字库或者单色位图,宽度为8的倍数,字形长宽相等,位图不限高度

  * @copyright [www.lcdvision.com.cn](/)

*****************************************************************************************/

#ifndef __RA8889_SHOW_USER_DEF_FONTLIB_BITPIC_H

#define __RA8889_SHOW_USER_DEF_FONTLIB_BITPIC_H

 

#include "UserDef.h"

#define display_address    canvas_image_width*LCD_height*24/8  //延展后目标显示地址

#define cache_address    canvas_image_width*LCD_height*24/8*2 //缓存地址 (8bpp),宽x高满足单字容量即可

#define Font_BUS 1     //自建字库总线地址

#define Font_CS  2     //自建字库片选地址

//#define Over_128Mb     //FLASH容量超过128Mb

/*字库可以多套合并,套数不限,但字宽必须为8的倍数,bin档可使用PackagingTool等软件合并*/

#define heiti16   0x00000000   //黑体16x16起始地址

#define heiti24   0x0003FE40   //黑体24x24起始地址

#define heiti32   0x000CFA50   //黑体32x32起始地址

#define songti16   0x001CF350   //宋体16x16起始地址

#define songti24   0x0020F190   //宋体24x24起始地址

#define songti32   0x0029EDA0   //宋体32x32起始地址

#define kaiti16   0x0039E6A0   //楷体16x16起始地址

#define kaiti24   0x003DE4E0   //楷体24x24起始地址

#define kaiti32   0x0046E0F0   //楷体32x32起始地址

#define pic  0x0056D9F0     //范例图片起始地址

#define bit_pic  0x00BE35F0   //范例单色位图起始地址,数字0~9

void User_Def_Font_Initial(void);

void Font_Size_ChromaKey_ForeColor_BackColor(unsigned short Font_Size,unsigned char ChromaKey,unsigned char Foreground_color,unsigned char Background_color);

void Show_User_Def_String(char *str,unsigned int Font_Lib_Offset,unsigned short Font_Size,unsigned char Font_Gap,unsigned short x,unsigned short y);

void Show_User_Def_Font(unsigned short hanziIndex, unsigned int Font_Lib_Offset, unsigned short Font_Size, unsigned short x, unsigned short y);

void Bit_Picture_Initial(unsigned short Pic_Width, unsigned short Pic_Height, unsigned char ChromaKey,unsigned char Foreground_color,unsigned char Background_color);

void Show_Bit_Picture(unsigned int Pic_Offset, unsigned short Pic_Width, unsigned short Pic_Height, unsigned short x, unsigned short y);

#endif /*__RA8889_SHOW_USER_DEF_FONTLIB_BITPIC_H*/

 

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第七讲 THE END

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