/**************************************************************************************************
* @fn HalLcdWriteData to the LCD
*
* @brief Write a data to the LCD
*
* @param data-the data to be wrote
*
*
* @return None
**************************************************************************************************/
void HalLcd_HW_WriteData(uint8 data)
{
uint8 i = 0;
LCD_CS = 0; // to select the LCD
HalLcd_HW_WaitUs(1);
LCD_RS = 1;// write data
HalLcd_HW_WaitUs(1);
for(i = 0; i < 8; i++)
{
LCD_CLK = 0;
asm("nop");// a delay for waiting the peripheral
// HalLcd_HW_WaitUs(1);
if(data & 0x80)
{
LCD_DI = 1;
}
else
{
LCD_DI = 0;
}
asm("nop");// a delay to set the data
asm("nop");
//HalLcd_HW_WaitUs(1);
data = data << 1;
LCD_CLK = 1;
// HalLcd_HW_WaitUs(1);
asm("nop");// a delay to hold the data
asm("nop");
}
LCD_CS = 1;//
//
}
/**************************************************************************************************
* @fn HalLcd_HW_Init
*
* @brief Initilize HW LCD Driver.
*
* @param None
*
* @return None
**************************************************************************************************/
void HalLcd_HW_Init(void)
{
/* Initialize LCD IO lines */
halLcd_ConfigIO();
/* Initialize SPI */
halLcd_ConfigSPI();
/* Perform reset */
LCD_ACTIVATE_RESET();
HalLcd_HW_WaitUs(15000); // 15 ms
LCD_RELEASE_RESET();
HalLcd_HW_WaitUs(15); // 15 us
/* Perform the initialization sequence */
FUNCTION_SET(CGRAM | COM_FORWARD | THREE_LINE);
/* Set contrast */
HalLcd_HW_SetContrast(15);
/* Set power */
SET_POWER_SAVE_MODE(OSC_OFF | POWER_SAVE_ON);
SET_POWER_CTRL(VOLTAGE_DIVIDER_ON | CONVERTER_AND_REG_ON);
SET_BIAS_CTRL(BIAS_1_5);
HalLcd_HW_WaitUs(21000);// 21 ms
/* Clear the display */
HalLcd_HW_Clear();
HalLcd_HW_ClearAllSpecChars();
SET_DISPLAY_CTRL(DISPLAY_CTRL_ON | DISPLAY_CTRL_BLINK_OFF | DISPLAY_CTRL_CURSOR_OFF);
}
/**************************************************************************************************
* @fn HalLcdWriteCommand to the LCD
*
* @brief Write a command to the LCD
*
* @param cmd-the command to be wrote
*
*
* @return None
**************************************************************************************************/
void HalLcd_HW_WriteCommand(uint8 cmd)
{
uint8 i = 0;
LCD_CS = 0; // to select the LCD
HalLcd_HW_WaitUs(1);
LCD_RS = 0;// write the command
HalLcd_HW_WaitUs(1);
for(i = 0; i < 8; i++)
{
LCD_CLK = 0;
asm("nop");// a delay for waiting the peripheral
// HalLcd_HW_WaitUs(2);
if(cmd & 0x80)
{
LCD_DI = 1;
}
else
{
LCD_DI = 0;
}
//asm("nop");// a delay to set the data
// asm("nop");
// HalLcd_HW_WaitUs(2);
cmd = cmd << 1;
LCD_CLK = 1;
asm("nop");// a delay to hold the data
asm("nop");
HalLcd_HW_WaitUs(1);
}
LCD_CS = 1;
}
/*
作用 设置LCD 文本显示的其实行和列
参数1 line,范围:0~7,即能够显示的行为1~8行，也就是lcd手册里提到的page
参数2 col,范围:0~127,即lcd的总列数，显示的起始位置可以设置到每一列
*/
void set_ddram_line_col(uint8 line,uint8 col)
{
uint8 page,coll,coll_l,coll_h;
page = line;
coll = col;
coll_h = coll>>4;
coll_l = coll&0x0f;
HalLcd_HW_Control(0xB0+page);
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0x10+coll_h);
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0x00+coll_l);
HalLcd_HW_WaitUs(15); // 15 us
}
/*********************************************************************
* 函数名称：HalLcd_HW_Init
* 功 能：LCD硬件初始化
* 入口参数：无
* 出口参数：无
* 返 回 值：无
********************************************************************/
void HalLcd_HW_Init(void)
{
halLcd_ConfigIO(); // 初始化LCD IO口
halLcd_ConfigSPI();// 初始化 SPI 口
/* 复位LCD */
LCD_ACTIVATE_RESET();
HalLcd_HW_WaitUs(8000);
LCD_RELEASE_RESET();
HalLcd_HW_WaitUs(30000);
HalLcd_HW_WaitUs(30000);
HalLcd_HW_SetBackLight(0); // 设置背光强度
HalLcd_HW_Clear(); // 清屏
HalLcd_HW_SetBackLight(100);
HalLcd_HW_FontCharSet(0,1);// 字体设置
HalLcd_HW_FontMode(1,0);
}
void HalLcdInit(void)
{
#if (HAL_LCD == TRUE)
/*config the I/O---------------by Zimuge*/
P1SEL &= ~(BV(3) + BV(5) + BV(6) + BV(7));
P1DIR |= (BV(3) + BV(5) + BV(6) + BV(7));
P2SEL &= ~BV(0);
P2DIR |= BV(0);
LEDD = 0; //open the backlight
HalLcd_HW_WriteCommand(0xE2);// software rest
HalLcd_HW_WaitUs(2);
HalLcd_HW_WriteCommand(0x2C);// open the boost circuit
HalLcd_HW_WaitUs(2);
HalLcd_HW_WriteCommand(0x2E);// open the voltage management circuit
HalLcd_HW_WaitUs(2);
HalLcd_HW_WriteCommand(0x2F);// open the voltage follower
HalLcd_HW_WaitUs(2);
HalLcd_HW_WriteCommand(0x24);// select the contrast roughly
HalLcd_HW_WriteCommand(0x81);// select the contrast smoothly
HalLcd_HW_WriteCommand(0x12);
HalLcd_HW_WriteCommand(0xA2);// select the bias voltage radio 1/9
HalLcd_HW_WriteCommand(0xC8);// scan the LCD from top to bottom
HalLcd_HW_WriteCommand(0xA0);// the address will automatically increase one by one
HalLcd_HW_WriteCommand(0x40);// select the begining of the column to display the char
HalLcd_HW_WriteCommand(0xAF);// open the lcd
// HalLcd_HW_WriteCommand(0xA5);
HalLcd_HW_Clear();
LoadBackground();
#endif
}
/**************************************************************************************************
初始化，已根据lcd12864手册更改
**************************************************************************************************/
void HalLcd_HW_Init(void)
{
/* Initialize LCD IO lines */
halLcd_ConfigIO();
/* Initialize SPI */
halLcd_ConfigSPI();
HalLcd_HW_Control(0xe2); //软复位
HalLcd_HW_WaitUs(15000); // 15 us
HalLcd_HW_Control(0x2c); //升压步聚1
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0x2e); //升压步聚2
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0x2f); //升压步聚3
HalLcd_HW_WaitUs(150); // 15 us
HalLcd_HW_Control(0x23); //粗调对比度，可设置范围0x20～0x27
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0x81); //微调对比度
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0x28); //0x1a,微调对比度的值，可设置范围0x00～0x3f
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0xa2); // 1/9偏压比（bias）
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0xa0); //行扫描顺序：从上到下
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0xc8); //列扫描顺序：从左到右
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0x40); //起始行：第一行开始
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0xaf); //打开显示
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Control(0xa4);
HalLcd_HW_WaitUs(15); // 15 us
HalLcd_HW_Clear();
//display_string_5x7(1,1,"abcdefghijklmnopqrstuvwxyz");
//display_string_5x7(8,1,"uvwxyz0123456789");
//while(1);
}