jlx12864G_300（带中文字库）+stm32f103c8t6

123HHY · 发表于 2019-11-17 19:20:11

目前再用stm32f103c8t6控制jlx12864G_300带字库，不调用字库使用函数Lcd_Dis16x16(u8,u8,u8*)可以正常显示（用字模提取软件）16x16，但是调用字库显示汉字16x16就出问题，问题在于不能一直正常显示，有时候可以显示出来，照着官网的程序做出改变
调用函数display_GB2312_string(u8,u8,u8*)显示汉字16x16,先是找在字库中的地址找寻24位地址，在发送读取命令（0x03）后送入24位地址，接着读取32位数据
就是不知道是函数IC_Receive()——给字库发送命令，还是IC_Transmit()——从字库读取数据出错，

void Lcd_Config() //初始化LED串口引脚
{
  GPIO_InitTypeDef GPIO_InitStructure;
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB, ENABLE);

  GPIO_InitStructure.GPIO_Pin = Lcd_RS;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = Lcd_SCK; //时钟
  GPIO_Init(GPIOB, &GPIO_InitStructure);
  Lcd_SCK_Reset;

  GPIO_InitStructure.GPIO_Pin = Lcd_PS; //串行选择
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  Lcd_PS_Reset;

  GPIO_InitStructure.GPIO_Pin = Lcd_CS; //片选选择
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = Lcd_RST; //复位
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  Lcd_RST_Set;

  GPIO_InitStructure.GPIO_Pin = Lcd_BG; //背光脚
  GPIO_Init(GPIOB, &GPIO_InitStructure);
  Lcd_BG_Set;

  GPIO_InitStructure.GPIO_Pin = Lcd_SID; //数据脚
  GPIO_Init(GPIOB, &GPIO_InitStructure);
}

void Lcd_WriteData(u8 data) //写数据到LCD
{
  u8 i;

  Lcd_RS_Set; //选择发送数据
  Lcd_CS_Reset;

  for(i=0; i<8; i++)
  {
Lcd_SCK_Reset; //上升沿写入数据
if(data & 0x80)
   Lcd_SID_Set;
else
   Lcd_SID_Reset;
Lcd_SCK_Set;
data <<= 1;
  }
  Lcd_CS_Set;
}

void Lcd_WriteCmd(u8 cmd) //写指令到LCD
{
  u8 i;

  Lcd_RS_Reset; //选择发送指令
  Lcd_CS_Reset;

  for(i=0; i<8; i++)
  {
Lcd_SCK_Reset; //上升沿写入数据
if(cmd & 0x80)
   Lcd_SID_Set;
else
   Lcd_SID_Reset;
Lcd_SCK_Set;
cmd <<= 1;
  }
  Lcd_CS_Set;
}

void Lcd_Address(u8 page, u8 column) //显示坐标
{
  column += 3;

  Lcd_WriteCmd(0xb0 + (page-1));
  Lcd_WriteCmd(0x10 + ((column>>4) & 0x0f));
  Lcd_WriteCmd(column & 0x0f);
}

void Lcd_Clear() //清屏
{
  u8 i,j;
  Lcd_CS_Reset;
  for(i=0;i<9;i++)
  {
Lcd_WriteCmd(0xb0+i);
Lcd_WriteCmd(0x10);
Lcd_WriteCmd(0x00);
for(j=0;j<132;j++)
   Lcd_WriteData(0x00);
  }
  Lcd_CS_Set;
}

void Lcd_Init() //LCD初始化
{
  Lcd_Config();

  Delay_nms(Delay_Long);
  Lcd_CS_Reset;
  //Delay_nms(Delay_Mid);

  Lcd_RST_Reset; //低电平复位
  Delay_nms(Delay_Mid);
  Lcd_RST_Set; //复位完毕
  Delay_nms(Delay_Mid);

  Lcd_WriteCmd(0xe2); //软复位
  Delay_nms(Delay_Short);

  Lcd_WriteCmd(0x2c); //升压步聚1
  Delay_nms(Delay_Short);
  Lcd_WriteCmd(0x2e); //升压步聚2
  Delay_nms(Delay_Short);
  Lcd_WriteCmd(0x2f); //升压步聚3
  Delay_nms(Delay_Short);

  Lcd_WriteCmd(0x24); //粗调对比度，可设置范围0x20～0x27
  Lcd_WriteCmd(0x81); //微调对比度
  Lcd_WriteCmd(0x1a); //0x1a,微调对比度的值，可设置范围0x00～0x3f
  Lcd_WriteCmd(0xa2); //1/9 偏压比（bias）
  Lcd_WriteCmd(0xc0); //行扫描顺序：从上到下
  Lcd_WriteCmd(0xa1); //列扫描顺序：从左到右
  Lcd_WriteCmd(0x40); //起始行：第一行开始
  Lcd_WriteCmd(0xaf); //开显示

  Lcd_CS_Set;
  Delay_nms(Delay_Long);

  Lcd_Clear();
  Delay_nms(Delay_Long);
}

void Lcd_Dis16x16(u8 page, u8 column, u8 *data) //显示16x16汉字
{
  u8 i,j;
  Lcd_CS_Reset;

  for(j=0;j<2;j++)
  {
Lcd_Address(page, column);
for (i=0;i<16;i++)
{
   Lcd_WriteData(*data); //写数据到LCD,每写完一个8 位的数据后列地址自动加1
   data++;
}
page++;
  }

  Lcd_CS_Set;
}

void SIDI() //设置SID输入
{
  GPIO_InitTypeDef GPIO_InitStructure;
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

  GPIO_InitStructure.GPIO_Pin = Lcd_SID;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
}

void SIDO() //设置SID输出
{
  GPIO_InitTypeDef GPIO_InitStructure;
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

  GPIO_InitStructure.GPIO_Pin = Lcd_SID;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
}

//送指令到晶联讯字库IC
void IC_Receive(u8 data)
{
  u8 i;
  //Lcd_CS_Set;

  for(i=0; i<8; i++)
  {

if(data & 0x80)
   Lcd_RS_Set;
else
   Lcd_RS_Reset;
data <<= 1;
Lcd_SCK_Reset;
//Delay_nms(Delay_Short);
Lcd_SCK_Set;
//Delay_nms(Delay_Short);
  }
}

//从晶联讯字库IC 中取汉字或字符数据
u8 IC_Transmit()
{
  u8 i;
  u8 ret_data = 0;
  //Lcd_CS_Set;
  //Lcd_SCK_Set;

  for(i=0; i<8; i++)
  {
Lcd_SID_Set;
SIDI(); //设置SID为输入
//Delay_nus(4);

Lcd_SCK_Reset;
ret_data <<= 1;
if(GPIO_ReadInputDataBit(GPIOB, Lcd_SID))
   ret_data |= 0x01;
else
   ret_data &= 0xfe;
Lcd_SCK_Set;

SIDO();
//Delay_nus(4);
  }
  return(ret_data);
}

//从相关地址中连续读出DataLen 个字节的数据到 pBuff 的地址
void IC_Transmit_NByte(u8 y,u8 x,u8 addrHigh,u8 addrMid,u8 addrLow,u8 DataLen )
{
  u8 i;
  u8 pBuff[32]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

  Delay_nms(Delay_Short);
  Lcd_CS_Reset;
  Lcd_CS_Set;
  Lcd_SCK_Reset;

  IC_Receive(0x03);
  IC_Receive(addrHigh);
  IC_Receive(addrMid);
  IC_Receive(addrLow);
  for(i=0; i<DataLen; i++ )
pBuff[i] = IC_Transmit();

  Lcd_CS_Set;
  Delay_nms(Delay_Mid);

  Lcd_Dis16x16(y,x,pBuff);
}

void display_GB2312_string(u8 y,u8 x,u8 *text)
{
  u8 i = 0;
  u32 fontaddr = 0;
  u8 addrHigh,addrMid,addrLow;

  while((text[i]>0x00))
  {
if(((text[i]>=0xb0) &&(text[i]<=0xf7))&&(text[i+1]>=0xa1))
{
   /*Address = ((MSB - 0xB0) * 94 + (LSB - 0xA1)+ 846)*32+ BaseAdd;BaseAdd=0*/
   fontaddr = (text[i]- 0xb0)*94;
   fontaddr += (text[i+1]-0xa1)+846;
   fontaddr = (fontaddr*32);
   addrHigh = (fontaddr&0xff0000)>>16;
   addrMid = (fontaddr&0xff00)>>8;
   addrLow = fontaddr&0xff;
   IC_Transmit_NByte(y,x,addrHigh,addrMid,addrLow,32);
   i+=2;
   x+=16;
}
else if((text[i]>=0x20) &&(text[i]<=0x7e))
{
   u8 fontbuf[16];
   fontaddr = (text[i]- 0x20);
   fontaddr = (fontaddr*16);
   fontaddr = (fontaddr+0x3cf80);
   addrHigh = (fontaddr&0xff0000)>>16;
   addrMid = (fontaddr&0xff00)>>8;
   addrLow = fontaddr&0xff;
   IC_Transmit_NByte(y,x,addrHigh,addrMid,addrLow,16);
   Lcd_Dis8x16(y,x,fontbuf);
   i+=1;
   x+=8;
}
else
   i++;
  }
}