关于液晶HX8347-A显示的问题这段单片机程序如何理解 -

标题: 关于液晶HX8347-A显示的问题这段单片机程序如何理解 [打印本页]

作者: zhang@xue 时间: 2018-4-15 22:52
标题: 关于液晶HX8347-A显示的问题这段单片机程序如何理解
inline void LCD_WriteCommand(u8 command){
  LCD_DATA_PORT->ODR=command;
  LCD_A0_RESET();
  LCD_NWR_RESET();
  LCD_NWR_SET();
}

inline void LCD_WriteData(u16 data){
  LCD_DATA_PORT->ODR=data;
  LCD_A0_SET();
  LCD_NWR_RESET();
  LCD_NWR_SET();
}

void LCD_SetXY(u16 px,u16 py){
  LCD_WriteCommand(0x02);
  LCD_WriteData(py>>8);
  LCD_WriteCommand(0x03);
  LCD_WriteData(py&0xff);

  LCD_WriteCommand(0x04);
  LCD_WriteData(0x01);
  LCD_WriteCommand(0x05);
  LCD_WriteData(0x3f);

  LCD_WriteCommand(0x06);
  LCD_WriteData(0);
  LCD_WriteCommand(0x07);
  LCD_WriteData(px);

  LCD_WriteCommand(0x08);
  LCD_WriteData(0x00);
  LCD_WriteCommand(0x09);
  LCD_WriteData(0xef);

  LCD_WriteCommand(0x22);
}
这段程序怎么理解？

作者: 海角七号550 时间: 2018-4-15 22:52
第一段，写命令；第二段，写数据；第三段应该是指定坐标打点

作者: zhang@xue 时间: 2018-4-18 19:38
差不多解决

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