【每周分享】OLED屏幕自带的滚屏效果

只看该作者 · 2025-8-2 09:15

本帖最后由 yuyy1989 于 2025-8-2 20:00 编辑

最近在翻OLED控制器的手册时发现，这个控制器还支持滚动功能，这么好玩的功能当然要加入到我的OLED驱动里
关于OLED的驱动过程可以看这篇https://bbs.21ic.com/icview-3338910-1-1.html，这次只介绍滚动效果的实现
我用的OLED的主控是SSD1315,在手册里涉及到滚动的命令有这几个
持续横向滚动

参数说明：
X0：0向右滚动，1,向左滚动
B2B1B0：滚动的起始页（每页8行）
C2C1C0：每次滚动的时间间隔
D2D1D0：滚动的结束页，这页的内容也会滚动
E6-E0：滚动的起始列
F6-F0：滚动的结束列，这列的内容也会滚动

持续竖向横向滚动

参数说明：
X1X0：1向右滚动，2,向左滚动
A0：0横向不滚动，1横向滚动
B2B1B0：滚动的起始页（每页8行）
C2C1C0：每次滚动的时间间隔
D2D1D0：滚动的结束页，这页的内容也会滚动
E5-E0：每次竖向滚动的行数
E6-F0：滚动的起始列
G6-G0：滚动的结束列，这列的内容也会滚动
需要说明的是其中的起始页结束页，起始列结束列只对横向滚动生效，想要限制竖向滚动的范围需要下面这个命令

设置竖向滚动区域

参数说明：
A5-A0：滚动的起始行，0~63
B6-B0：滚动的行数,1~64
上面的滚动参数设置完后需要发送下面的滚动开始或停止命令

还有一个滚动命令

和持续横向滚动的命令类似，只不过是发送一次命令横向滚动1列
代码实现持续横向滚动和持续竖向横向滚动

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typedef enum

{

    YUYY_OLED_SSD1315_SCROLL_STOP = 0,

    YUYY_OLED_SSD1315_SCROLL_HORIZONTAL_RIGHT,

    YUYY_OLED_SSD1315_SCROLL_HORIZONTAL_LEFT,

    YUYY_OLED_SSD1315_SCROLL_VERTICAL,

    YUYY_OLED_SSD1315_SCROLL_VERTICAL_HORIZONTAL_RIGHT,

    YUYY_OLED_SSD1315_SCROLL_VERTICAL_HORIZONTAL_LEFT,

}YUYY_OLED_SSD1315_ScrollType;



typedef enum

{

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_6FRAMES = 0,

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_32FRAMES,

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_64FRAMES,

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_128FRAMES,

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_3FRAMES,

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_4FRAMES,

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_5FRAMES,

    YUYY_OLED_SSD1315_SCROLL_INTERVAL_2FRAMES,

}YUYY_OLED_SSD1315_ScrollInterval_Type;



void YUYY_OLED_SSD1315_SetVerticalScrollRows(YUYY_OLED_SSD1315_DEV_Type *dev,uint8_t start_row,uint8_t rows)

{

    uint8_t cmd[3];

    cmd[0] = 0xA3;

    cmd[1] = start_row&0x3F;

    cmd[2] = rows&0x7F;

    YUYY_OLED_SSD1315_SendCmds(dev,cmd,3);

}



void YUYY_OLED_SSD1315_ContinuousScroll(YUYY_OLED_SSD1315_DEV_Type *dev,YUYY_OLED_SSD1315_ScrollType option,uint8_t vertical_offset,YUYY_OLED_SSD1315_ScrollInterval_Type interval,uint8_t start_page,uint8_t end_page,uint8_t start_column,uint8_t end_column)

{

    uint8_t cmd[10];

    uint8_t cmdlen = 0;

    if(option == YUYY_OLED_SSD1315_SCROLL_STOP)

    {

        cmd[0] = 0x2E;

        cmdlen = 1;

    }

    else if(option == YUYY_OLED_SSD1315_SCROLL_HORIZONTAL_RIGHT || option == YUYY_OLED_SSD1315_SCROLL_HORIZONTAL_LEFT)

    {

        cmd[0] = 0x26;

        if(option == YUYY_OLED_SSD1315_SCROLL_HORIZONTAL_LEFT)

            cmd[0] = 0x27;

        cmd[1] = 0x00;

        cmd[2] = start_page&0x07;

        cmd[3] = interval&0x07;

        cmd[4] = end_page&0x07;

        cmd[5] = start_column&0x7F;

        cmd[6] = end_column&0x7F;

        cmd[7] = 0x2F;

        cmdlen = 8;

    }

    else

    {

        cmd[0] = 0x29;

        if(option == YUYY_OLED_SSD1315_SCROLL_VERTICAL_HORIZONTAL_LEFT)

            cmd[0] = 0x2A;

        cmd[1] = 0x01;

        if(option == YUYY_OLED_SSD1315_SCROLL_VERTICAL)

            cmd[1] = 0x00;

        cmd[2] = start_page&0x07;

        cmd[3] = interval&0x07;

        cmd[4] = end_page&0x07;

        cmd[5] = vertical_offset&0x3F;

        cmd[6] = start_column&0x7F;

        cmd[7] = end_column&0x7F;

        cmd[8] = 0x2F;

        cmdlen = 9;

    }

    YUYY_OLED_SSD1315_SendCmds(dev,cmd,cmdlen);

}

全屏向右滚动

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YUYY_OLED_SSD1315_ContinuousScroll(&oled,YUYY_OLED_SSD1315_SCROLL_HORIZONTAL_RIGHT,0,YUYY_OLED_SSD1315_SCROLL_INTERVAL_5FRAMES,0,7,0,127);

部分向左滚动

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YUYY_OLED_SSD1315_ContinuousScroll(&oled,YUYY_OLED_SSD1315_SCROLL_HORIZONTAL_LEFT,0,YUYY_OLED_SSD1315_SCROLL_INTERVAL_5FRAMES,2,5,24,55);

全屏竖向滚动

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YUYY_OLED_SSD1315_SetVerticalScrollRows(&oled,0,64);

YUYY_OLED_SSD1315_ContinuousScroll(&oled,YUYY_OLED_SSD1315_SCROLL_VERTICAL,1,YUYY_OLED_SSD1315_SCROLL_INTERVAL_5FRAMES,0,7,0,127);

部分竖向滚动

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YUYY_OLED_SSD1315_SetVerticalScrollRows(&oled,16,32);

YUYY_OLED_SSD1315_ContinuousScroll(&oled,YUYY_OLED_SSD1315_SCROLL_VERTICAL,1,YUYY_OLED_SSD1315_SCROLL_INTERVAL_5FRAMES,0,7,0,127);

全屏竖向同时向右滚动

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YUYY_OLED_SSD1315_SetVerticalScrollRows(&oled,0,64);

YUYY_OLED_SSD1315_ContinuousScroll(&oled,YUYY_OLED_SSD1315_SCROLL_VERTICAL_HORIZONTAL_RIGHT,1,YUYY_OLED_SSD1315_SCROLL_INTERVAL_5FRAMES,0,7,0,127);

部分竖向同时部分向左滚动

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YUYY_OLED_SSD1315_SetVerticalScrollRows(&oled,16,32);

YUYY_OLED_SSD1315_ContinuousScroll(&oled,YUYY_OLED_SSD1315_SCROLL_VERTICAL_HORIZONTAL_LEFT,1,YUYY_OLED_SSD1315_SCROLL_INTERVAL_5FRAMES,2,5,24,55);