DWIN迪文串口屏使用

参考

GB2312简体中文编码表
GB2312、Unicode编码等
RGB565颜色表，附RGB888转RGB565工具，RGB24转RGB565工具
图解RGB565、RGB555、RGB16、RGB24、RGB32、ARGB32等格式的区别

更新图片资源

目的是改掉开机画面，首先制作自己屏幕尺寸相同的图片，480x272，打开迪文资料带的jpgconvert，运行，win10需要先安装.NET3.5，我的图片大小超了32KB，用软件可以生成32KB以下的图片，在windows格式化的时候必须手动选择4KB扇区，不能默认。

根目录

方法

（1）确定型号DMT48270C050_04WN，官网下载手册，
（2） 确定屏幕驱动芯片类型，T5UIC1，下载该芯片的使用手册，

（3）目前只需要显示汉字和数值，所以只需要这两天命令，对于传输的16进制数，为了显示浮点数，设置了，Num_I和Num_F来设置小数点前和小数点后的位数，

（4）在键盘设置参数时，需要数值的某一位闪烁，可利用下面的指令，XOR方式，

乱码

Keil编辑器设置Ascii编码，字符串中输入中文直接显示，发现汉字待和过乱码，这两个字均包含0xfd，在字符串中添加0xfd即可，

  "待\xfd机            ", 

后续发现这是Keil的bug，需要打补丁，

测试

代码

c语言，

#include "uart.h"
#include "disp.h"

/*480*272*/
char dispBuf[256];

#define COLOR_BLACK   0x0000
#define COLOR_RED     0xf800
#define COLOR_GREEN   0x07e0
#define COLOR_BLUE    0x001f
#define COLOR_WHITE   0xffff

#define BACKGROUND_COLOR    COLOR_BLACK

#define CHAR_WIDTH    24
#define CHAR_HEIGHT   48

void DispClear(void)
{
  unsigned char i = 0;
  disp[i] = 0xaa;i++;
  disp[i] = 0x01;i++;/*cmd*/
  disp[i] = BACKGROUND_COLOR >> 8;i++;/*MSB first*/
  disp[i] = BACKGROUND_COLOR;i++;/*MSB first*/
  disp[i] = 0xcc;i++;
  disp[i] = 0x33;i++;
  disp[i] = 0xc3;i++;
  disp[i] = 0x3c;i++;
  Uart2SendBuf(dispBuf, i);
}

void DispShowString(unsigned short color, unsigned short x, unsigned short y, char* p)
{
  unsigned char i = 0;
  disp[i] = 0xaa;i++;
  disp[i] = 0x11;i++;/*cmd*/
  disp[i] = 0x07;i++;/*mode: without background color, 24x48*/
  disp[i] = color >> 8;i++;/*MSB first*/
  disp[i] = color;i++;/*MSB first*/
  disp[i] = BACKGROUND_COLOR >> 8;i++;/*MSB first*/
  disp[i] = BACKGROUND_COLOR;i++;/*MSB first*/
  disp[i] = x >> 8;i++;/*MSB first*/
  disp[i] = x;i++;/*MSB first*/
  disp[i] = y >> 8;i++;/*MSB first*/
  disp[i] = y;i++;/*MSB first*/
  while (*p != 0) {
    disp[i] = *p;
    i++;
    p++;
  }
  disp[i] = 0xcc;i++;
  disp[i] = 0x33;i++;
  disp[i] = 0xc3;i++;
  disp[i] = 0x3c;i++;
  Uart2SendBuf(dispBuf, i);
}
/*
n: disp num
i, f: fraction, radix point, n = 169 i = 2 f = 1 -> 16.9
*/
void DispShowNum(unsigned short color, unsigned char i, unsigned char f, unsigned short x, unsigned short y, unsigned long n)
{
  unsigned char i = 0;
  disp[i] = 0xaa;i++;
  disp[i] = 0x14;i++;/*cmd*/
  disp[i] = 0x07;i++;/*mode: without background color, 24x48*/
  disp[i] = color >> 8;i++;/*MSB first*/
  disp[i] = color;i++;/*MSB first*/
  disp[i] = BACKGROUND_COLOR >> 8;i++;/*MSB first*/
  disp[i] = BACKGROUND_COLOR;i++;/*MSB first*/
  disp[i] = x >> 8;i++;/*MSB first*/
  disp[i] = x;i++;/*MSB first*/
  disp[i] = y >> 8;i++;/*MSB first*/
  disp[i] = y;i++;/*MSB first*/
  disp[i] = n >> 24;i++;
  disp[i] = n >> 16;i++;
  disp[i] = n >> 8;i++;
  disp[i] = n;i++;
  disp[i] = 0xcc;i++;
  disp[i] = 0x33;i++;
  disp[i] = 0xc3;i++;
  disp[i] = 0x3c;i++;
  Uart2SendBuf(dispBuf, i);
}

void DispSelectChar(unsigned short color, unsigned short x, unsigned short y)
{
  unsigned char i = 0;
  disp[i] = 0xaa;i++;
  disp[i] = 0x05;i++;/*cmd*/
  disp[i] = 0x02;i++;/*mode: color XOR*/
  disp[i] = color >> 8;i++;/*MSB first*/
  disp[i] = color;i++;/*MSB first*/
  disp[i] = x >> 8;i++;/*MSB first*/
  disp[i] = x;i++;/*MSB first*/
  disp[i] = y >> 8;i++;/*MSB first*/
  disp[i] = y;i++;/*MSB first*/
  disp[i] = (x + CHAR_WIDTH) >> 8;i++;/*MSB first*/
  disp[i] = (x + CHAR_WIDTH);i++;/*MSB first*/
  disp[i] = (y + CHAR_HEIGHT); >> 8;i++;/*MSB first*/
  disp[i] = (y + CHAR_HEIGHT);i++;/*MSB first*/
  disp[i] = 0xcc;i++;
  disp[i] = 0x33;i++;
  disp[i] = 0xc3;i++;
  disp[i] = 0x3c;i++;
  Uart2SendBuf(dispBuf, i);  
}