/**************************************************************************************************
* @fn HalLcd_HW_Clear
*
* @brief Clear the HW LCD
*
* @param None
*
* @return None
**************************************************************************************************/
void HalLcd_HW_Clear(void)
{
uint8 n;
SET_DDRAM_ADDR(0x00);
for (n = 0; n < (LCD_MAX_LINE_COUNT * LCD_MAX_LINE_LENGTH); n++)
{
HalLcd_HW_Write(' ');
}
}
/**************************************************************************************************
* @fn HalLcd_HW_ClearAllSpecChars
*
* @brief Clear all special chars
*
* @param None
*
* @return None
**************************************************************************************************/
void HalLcd_HW_ClearAllSpecChars(void)
{
uint8 n = 0;
SET_GCRAM_CHAR(0);
for (n = 0; n < (8 * 8); n++)
{
HalLcd_HW_Write(0x00);
}
}
/**************************************************************************************************
作用 清屏
**************************************************************************************************/
void HalLcd_HW_Clear(void)
{
int i,j;
for(i=0;i<8;i++){
set_ddram_line_col(i,0);
for(j=0;j<128;j++){
HalLcd_HW_Write(0x00);
}
}
}
/*********************************************************************
* 函数名称：HalLcd_HW_WriteChar
* 功 能：显示ASCII码字符
* 入口参数：line 要显示的字符的行位置
* col 要显示的字符列位置
* text 要显示的ASCII码字符值
* 出口参数：无
* 返 回 值：无
********************************************************************/
void HalLcd_HW_WriteChar(unsigned char line, unsigned char col, char text)
{
if (col < LCD_MAX_LINE_LENGTH)
{
HalLcd_HW_Write(col * LCD_X_WITCH, (line-1) * LCD_Y_WITCH, text);
}
else
{
return;
}
}
/**************************************************************************************************
* @fn HalLcd_HW_WriteChar
*
* @brief Write one char to the display
*
* @param uint8 line - line number that the char will be displayed
* uint8 col - colum where the char will be displayed
*
* @return None
**************************************************************************************************/
void HalLcd_HW_WriteChar(uint8 line, uint8 col, char text)
{
if (col < LCD_MAX_LINE_LENGTH)
{
SET_DDRAM_ADDR((line - 1) * LCD_MAX_LINE_LENGTH + col);
HalLcd_HW_Write(text);
}
else
{
return;
}
}
/**************************************************************************************************
* @fn HalLcd_HW_WriteChar
*
* @brief Write one char to the display
*
* @param uint8 line - line number that the char will be displayed
* uint8 col - colum where the char will be displayed
*
* @return None
**************************************************************************************************/
void HalLcd_HW_WriteChar(uint8 line, uint8 col, char text)
{
if (col < HAL_LCD_MAX_CHARS)
{
SET_DDRAM_ADDR((line - 1) * HAL_LCD_MAX_CHARS + col);
HalLcd_HW_Write(text);
}
else
{
return;
}
}
/**************************************************************************************************
* @fn HalLcd_HW_Clear
*
* @brief Clear the HW LCD
*
* @param None
*
* @return None
**************************************************************************************************/
void HalLcd_HW_Clear(void)
{
uint8 i,j;
for (i = 0; i < 8; i++)
{
for (j = 0; j < 132; j++)
{
SET_DDRAM_ADDR(j,i);
HalLcd_HW_Write(0);
}
}
}
/*
作用 显示一个字节的字符，该字符大小为宽5个点，高7个点
参数1 page,范围0~7,共8行
参数2 column,范围0~127
参数3 text,要显示的字符，该值为ascii码
*/
void DisplayByte_5x7(uint8 page,uint8 column,uint8 text)
{
int j,k;
if((text>=0x20)&&(text<0x7e)){/*需要显示的文字*/
j=text-0x20;/*寻址，通过字符的ascii码找到点阵库中的改字符的位置*/
set_ddram_line_col(page,column);
for(k=0;k<5;k++)
{
HalLcd_HW_Write(ascii_table_5x7[j][k]);/*显示5x7的ASCII字到LCD上，y为页地址，x为列地址，最后为数据*/
}
//第六列写入0，即清除上一次留下来的数据
HalLcd_HW_Write(0x00);
column+=6;
}else if(text==0x00){/*不需要显示，清空指定位置*/
set_ddram_line_col(page,column);
for(k=0;k<5;k++){
HalLcd_HW_Write(0x00); //清空指定的字符位置
}
}
}
/**************************************************************************************************
* @fn HalLcd_HW_WriteChar
*
* @brief Write one char to the display
*
* @param uint8 line - line number that the char will be displayed
* uint8 col - colum where the char will be displayed
*
* @return None
**************************************************************************************************/
void HalLcd_HW_WriteChar(uint8 line, uint8 col, char text)
{
uint8 j;
uint16 addr;
uint8 cvt_result;
if (col < LCD_MAX_LINE_LENGTH && line <= HAL_LCD_LINE_4)
{
//write first line
SET_DDRAM_ADDR(col * 8, (line - 1) * 2);
addr = (text - 0x20)*12;
for (j = 0; j < 8; j++)
{
cvt_result = HalLcd_Convert_DZK(j,addr);
cvt_result = cvt_result << 2;
HalLcd_HW_Write(cvt_result);
}
//write second line
SET_DDRAM_ADDR(col * 8, (line - 1) * 2 + 1);
addr = addr + 6;
for (j = 0; j < 8; j++)
{
cvt_result = HalLcd_Convert_DZK(j,addr);
HalLcd_HW_Write(cvt_result);
}
}
else
{
return;
}
}
/**************************************************************************************************
* @fn HalLcd_HW_SetContrast
*
* @brief Set display contrast
*
* @param uint8 value - contrast value
*
* @return none
**************************************************************************************************/
void HalLcd_HW_SetContrast(uint8 value)
{
SET_ICONRAM_ADDR(CONTRAST_CTRL_REGISTER);
HalLcd_HW_Write(value);
}
