【AT-START-F405测评】5.SPI驱动LCD+RTC实现电子时钟显示屏

YUYY_HS12864G18B_DEV_Type lcd_dev;

void lcd_spiwritebyte(spi_type *spix,uint8_t byte)

{

    while(spi_i2s_flag_get(spix, SPI_I2S_TDBE_FLAG) == RESET);

    spi_i2s_data_transmit(spix,byte);

}

void lcd_init()

{

    lcd_dev.cs.gpio = LCD_CS_GPIO_PORT;

    lcd_dev.cs.pin = LCD_CS_PIN;

    lcd_dev.a0.gpio = LCD_A0_GPIO_PORT;

    lcd_dev.a0.pin = LCD_A0_PIN;

    lcd_dev.rst.gpio = LCD_RST_GPIO_PORT;

    lcd_dev.rst.pin = LCD_RST_PIN;

    lcd_dev.spix = SPI1;

    lcd_dev.spi_sendbyte_func = (YUYY_HS12864G18B_SpiWriteByteFunc_Type)lcd_spiwritebyte;

    

    YUYY_HS12864G18B_Init(&lcd_dev);

    YUYY_HS12864G18B_ClearScreen(&lcd_dev);

    YUYY_HS12864G18B_DisplayString8x16(&lcd_dev,0,0,0," AT32F405 TEST");

    YUYY_HS12864G18B_DisplayString8x16(&lcd_dev,0,2,0,"   LCD use SPI");

    YUYY_HS12864G18B_DisplayString8x16(&lcd_dev,0,4,0,"  bbs.21ic.com");

    YUYY_HS12864G18B_DisplayString8x16(&lcd_dev,0,6,0,"Code by yuyy1989");

    YUYY_HS12864G18B_DisplayFinish(&lcd_dev);

}

void YUYY_HS12864G18B_writebyte(YUYY_HS12864G18B_DEV_Type *hs12864_dev,uint8_t dat)

{

    if(hs12864_dev->spix)

        hs12864_dev->spi_sendbyte_func(hs12864_dev->spix, dat);

}



void YUYY_HS12864G18B_cs(YUYY_HS12864G18B_DEV_Type *hs12864_dev,YUYY_GPIO_LEV_TYPE lev)

{

    hs12864_dev->delayus_func(5);

    hs12864_dev->cs_setlev_func(&(hs12864_dev->cs),lev);

    hs12864_dev->delayus_func(5);

}

void YUYY_HS12864G18B_rst(YUYY_HS12864G18B_DEV_Type *hs12864_dev,YUYY_GPIO_LEV_TYPE lev)

{

    hs12864_dev->rst_setlev_func(&(hs12864_dev->rst),lev);

}

void YUYY_HS12864G18B_a0(YUYY_HS12864G18B_DEV_Type *hs12864_dev,YUYY_GPIO_LEV_TYPE lev)

{

    hs12864_dev->a0_setlev_func(&(hs12864_dev->a0),lev);

}



/*

* com 0指令 1数据

*/

void YUYY_HS12864G18B_writedata(YUYY_HS12864G18B_DEV_Type *hs12864_dev,YUYY_GPIO_LEV_TYPE com,uint8_t dat)

{

    YUYY_HS12864G18B_cs(hs12864_dev,YUYY_GPIO_LEV0);

    YUYY_HS12864G18B_a0(hs12864_dev,com);

    YUYY_HS12864G18B_writebyte(hs12864_dev,dat);

}



void YUYY_HS12864G18B_Init(YUYY_HS12864G18B_DEV_Type *hs12864_dev)

{

    if(!hs12864_dev->a0_setlev_func)

        hs12864_dev->a0_setlev_func = YUYY_GPIO_SetLev;

    if(!hs12864_dev->cs_setlev_func)

        hs12864_dev->cs_setlev_func = YUYY_GPIO_SetLev;

    if(!hs12864_dev->mo_setlev_func)

        hs12864_dev->mo_setlev_func = YUYY_GPIO_SetLev;

    if(!hs12864_dev->rst_setlev_func)

        hs12864_dev->rst_setlev_func = YUYY_GPIO_SetLev;

    if(!hs12864_dev->sck_setlev_func)

        hs12864_dev->sck_setlev_func = YUYY_GPIO_SetLev;

    if(!hs12864_dev->delayus_func)

        hs12864_dev->delayus_func = (YUYY_DELAY_Func_Type)YUYY_DelayUs;

        

    YUYY_HS12864G18B_cs(hs12864_dev,YUYY_GPIO_LEV0);

    YUYY_HS12864G18B_rst(hs12864_dev,YUYY_GPIO_LEV0);/*低电平复位*/ 

    hs12864_dev->delayus_func(20);

    YUYY_HS12864G18B_rst(hs12864_dev,YUYY_GPIO_LEV1);/*复位完毕*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0xE2);/*软复位*/ 

    hs12864_dev->delayus_func(50);

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0x2C); /*升压步聚 1*/ 

    hs12864_dev->delayus_func(50); 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0x2E); /*升压步聚 2*/ 

    hs12864_dev->delayus_func(50); 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0x2F); /*升压步聚 3*/

    hs12864_dev->delayus_func(50); 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0x24); /*0x24粗调对比度，可设置范围0x20～0x27*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0x81); /*微调对比度*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0x08); /*0x28,微调对比度的值，可设置范围0x00～0x3f  1f*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0xA2); /*1/9偏压比（bias）*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0xC8); /*行扫描顺序：从上到下*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0xA0); /*列扫描顺序：从左到右*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0x40); /*起始行：第一行开始*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0xAF); /*开显示*/ 

    YUYY_HS12864G18B_cs(hs12864_dev,YUYY_GPIO_LEV1);

}



void YUYY_HS12864G18B_address(YUYY_HS12864G18B_DEV_Type *hs12864_dev,uint8_t page,uint8_t column) 

{

    YUYY_HS12864G18B_cs(hs12864_dev,YUYY_GPIO_LEV0);

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,0xB0+page); //设置页地址。每页是 8行。一个画面的 64行被分成 8个页*/ 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,((column>>4)&0x0F)+0x10); //设置列地址的高4位 

    YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV0,column&0x0F); //设置列地址的低4位 

} 



/*全屏清屏*/ 

void YUYY_HS12864G18B_ClearScreen(YUYY_HS12864G18B_DEV_Type *hs12864_dev) 

{ 

    uint8_t i,j; 

    for(i=0;i<8;i+=1) 

    { 

        YUYY_HS12864G18B_address(hs12864_dev,i,0); 

        for(j=0;j<132;j+=1) 

        { 

            YUYY_HS12864G18B_writedata(hs12864_dev,YUYY_GPIO_LEV1,0x00); 

        } 

    } 

}



/*显示8x16ASCII字符串*/ 

void YUYY_HS12864G18B_DisplayString8x16(YUYY_HS12864G18B_DEV_Type *hs12864_dev,uint8_t option,uint8_t page,uint8_t column,char *text) 

{ 

    uint8_t i=0,j; 

    option &= 0x01;

    while(text[i]>0x00) 

    { 

        if((text[i] > 0x1F)&&(text[i] < 0x7F))

        { 

            j=text[i]-0x20; 

            YUYY_HS12864G18B_DisplayDatas(hs12864_dev,option,page,column,(uint8_t *)(YUYY_FONT_ASCII_TABLE_8x16+j),8,16);

            column+=8; 

        } 

        i+=1; 

    }

} 

void wk_ertc_init(void)

{

  /* add user code begin ertc_init 0 */

  /* add user code end ertc_init 0 */



  exint_init_type exint_init_struct;



  /* add user code begin ertc_init 1 */



  /* add user code end ertc_init 1 */



  pwc_battery_powered_domain_access(TRUE);



  crm_ertc_clock_select(CRM_ERTC_CLOCK_LEXT);

  crm_ertc_clock_enable(TRUE);

  ertc_reset();

  ertc_wait_update();

  ertc_divider_set(127, 255);

  ertc_hour_mode_set(ERTC_HOUR_MODE_24);



  ertc_time_set(22, 10, 0, ERTC_24H);



  ertc_date_set(24, 4, 28, 7);



  /* configure Wakeup timer */

  ertc_wakeup_clock_set(ERTC_WAT_CLK_CK_B_16BITS);

  ertc_wakeup_counter_set(0);



  exint_default_para_init(&exint_init_struct);

  exint_init_struct.line_enable   = TRUE;

  exint_init_struct.line_mode     = EXINT_LINE_INTERRUPUT;

  exint_init_struct.line_select   = EXINT_LINE_22;

  exint_init_struct.line_polarity = EXINT_TRIGGER_RISING_EDGE;

  exint_init(&exint_init_struct);

  /**

   * Users need to configure this interrupt functions according to the actual application.

   * 1. Call the below function to enable this  interrupt.

   *      --ertc_interrupt_enable(ERTC_WAT_INT, TRUE)

   * 2. Add the user's interrupt handler code into the below function in the at32f402_405_int.c file.

   *      --void ERTC_WKUP_IRQHandler (void)

   */



  ertc_wakeup_enable(TRUE);  



  /* add user code begin ertc_init 2 */

    ertc_interrupt_enable(ERTC_WAT_INT,TRUE);

  /* add user code end ertc_init 2 */

}

char *WeekdayStr[7]= {"SUN","MON","TUE","WED","THU","FRI","SAT"};

void rtc_int()

{

    ertc_time_type time;

    char out[20];



    ertc_calendar_get(&time);

    sprintf(out," 20%02d-%02d-%02d %s ",time.year, time.month, time.day,WeekdayStr[time.week%7]);

    YUYY_HS12864G18B_DisplayString8x16(&lcd_dev,0,0,0,out);

    sprintf(out,"    %02d:%02d:%02d    ",time.hour, time.min, time.sec);

    YUYY_HS12864G18B_DisplayString8x16(&lcd_dev,0,2,0,out);

}

void ERTC_WKUP_IRQHandler(void)

{

  /* add user code begin ERTC_WKUP_IRQ 0 */

    if(ertc_flag_get(ERTC_WATF_FLAG) != RESET)

    {

        ertc_flag_clear(ERTC_WATF_FLAG);

        rtc_int();

    }

  /* add user code end ERTC_WKUP_IRQ 0 */

  /* add user code begin ERTC_WKUP_IRQ 1 */



  /* add user code end ERTC_WKUP_IRQ 1 */

}