/**************************************************************************************************
* @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();
HalLcd_HW_Control(0xaf); //开显示
HalLcd_HW_Control(0x40); //显示起始行为0
HalLcd_HW_Control(0xa0); //RAM列地址与列驱动同顺序
HalLcd_HW_Control(0xa6); //正向显示
HalLcd_HW_Control(0xa4); //显示全亮功能关闭
HalLcd_HW_Control(0xa2); //LCD偏压比1/9
HalLcd_HW_Control(0xc8); //行驱动方向为反向
HalLcd_HW_Control(0x2f); //启用内部LCD驱动电源
HalLcd_HW_Control(0xf8); //升压电路设置指令代码
HalLcd_HW_Control(0x00); //倍压设置为4X
HalLcd_HW_SetContrast(0x68);//set contrast 对比度
/* Clear the display */
HalLcd_HW_Clear();
}
/*
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
}
/**************************************************************************************************
* @fn HalLcd_HW_SetContrast
*
* @brief Set display contrast
*
* @param uint8 value - contrast value
*
* @return none
**************************************************************************************************/
void HalLcd_HW_SetContrast(uint8 value)
{
HalLcd_HW_Control(CONTRAST_CTRL_REGISTER);
HalLcd_HW_Control(value);
}
/* 30/8/2010 ++ by feibit */
void SET_DDRAM_ADDR(uint8 x, uint8 y)
{
HalLcd_HW_Control(y|0xb0);
HalLcd_HW_Control((x >> 4)|0x10);
HalLcd_HW_Control(x&0x0f);
}
/**************************************************************************************************
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);
}
