一、了解OLED屏的滚屏命令
本OLED屏的芯片类型：SSD1306
详细命令的介绍，请查找SSD1306-OLED驱动中文手册或者参考下面链接进行了解
https://wlink.blog.csdn.net/article/details/81329770
1.水平左右移
OLED_WR_Byte(0x2E,OLED_CMD); //关闭滚动
OLED_WR_Byte(0x26,OLED_CMD); //水平向左或者右滚动 26/27
OLED_WR_Byte(0x00,OLED_CMD); //虚拟字节
OLED_WR_Byte(0x00,OLED_CMD); //起始页 0
OLED_WR_Byte(0x07,OLED_CMD); //滚动时间间隔
OLED_WR_Byte(0x07,OLED_CMD); //终止页 7
OLED_WR_Byte(0x00,OLED_CMD); //虚拟字节
OLED_WR_Byte(0xFF,OLED_CMD); //虚拟字节
OLED_WR_Byte(0x2F,OLED_CMD); //开启滚动
2.垂直和水平滚动
OLED_WR_Byte(0x2e,OLED_CMD); //关闭滚动
OLED_WR_Byte(0x29,OLED_CMD); //水平垂直和水平滚动左右 29/2a
OLED_WR_Byte(0x00,OLED_CMD); //虚拟字节
OLED_WR_Byte(0x00,OLED_CMD); //起始页 0
OLED_WR_Byte(0x07,OLED_CMD); //滚动时间间隔
OLED_WR_Byte(0x07,OLED_CMD); //终止页 1
OLED_WR_Byte(0x01,OLED_CMD); //垂直滚动偏移量
OLED_WR_Byte(0x2F,OLED_CMD); //开启滚动
说明：设置前需要先发关闭滚动的指令2E，接着发滚动指令29（向右）或2A（向左）。紧接着发5条参数设置指令，用来设置持续水平滚动参数和决定滚动开始页，结束页，滚动速度和垂直滚动偏移的，最后才发开始滚屏指令2F。
注意：在发送开始滚屏（2F）前要先传输好显示数据，如果在滚屏的时候传输显示数据RAM中的内容可能被损坏，无法正常显示。
二、对显示文字进行取模
1.下载字模软件
下载链接：
http://download.eeworld.com.cn/detail/jacksonluo/16285
2. 获取相应文字的点阵十六进制表示
"欢",0x00,0x80,0x00,0x80,0xFC,0x80,0x04,0xFC,0x05,0x04,0x49,0x08,0x2A,0x40,0x14,0x40,
0x10,0x40,0x28,0xA0,0x24,0xA0,0x45,0x10,0x81,0x10,0x02,0x08,0x04,0x04,0x08,0x02,/*"欢",0*/
"迎",0x00,0x00,0x20,0x80,0x13,0x3C,0x12,0x24,0x02,0x24,0x02,0x24,0xF2,0x24,0x12,0x24,
0x12,0x24,0x12,0xB4,0x13,0x28,0x12,0x20,0x10,0x20,0x28,0x20,0x47,0xFE,0x00,0x00,/*"迎",0*/
"来",0x01,0x00,0x01,0x00,0x01,0x00,0x7F,0xFC,0x01,0x00,0x11,0x10,0x09,0x10,0x09,0x20,
0xFF,0xFE,0x03,0x80,0x05,0x40,0x09,0x20,0x31,0x18,0xC1,0x06,0x01,0x00,0x01,0x00,/*"来",0*/
"到",0x00,0x04,0xFF,0x84,0x08,0x04,0x10,0x24,0x22,0x24,0x41,0x24,0xFF,0xA4,0x08,0xA4,
0x08,0x24,0x08,0x24,0x7F,0x24,0x08,0x24,0x08,0x04,0x0F,0x84,0xF8,0x14,0x40,0x08,/*"到",0*/
"博",0x20,0x50,0x20,0x48,0x2F,0xFE,0x20,0x40,0x27,0xFC,0xFC,0x44,0x27,0xFC,0x24,0x44,
0x27,0xFC,0x24,0x44,0x20,0x08,0x2F,0xFE,0x22,0x08,0x21,0x08,0x21,0x28,0x20,0x10,/*"博",0*/
"客",0x02,0x00,0x01,0x00,0x7F,0xFE,0x40,0x02,0x88,0x04,0x0F,0xF0,0x10,0x20,0x2C,0x40,
0x03,0x80,0x1C,0x70,0xE0,0x0E,0x1F,0xF0,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,/*"客",0*/
三、主要代码
mian函数
#include "delay.h"
#include "sys.h"
#include "oled.h"
#include "gui.h"
#include "test.h"
int main(void)
{
delay_init(); //延时函数初始化
NVIC_Configuration(); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
OLED_Init(); //初始化OLED
OLED_Clear(0); //清屏（全黑）
OLED_WR_Byte(0x2E,OLED_CMD); //关闭滚动
OLED_WR_Byte(0x27,OLED_CMD); //水平向左或者右滚动 26/27
OLED_WR_Byte(0x00,OLED_CMD); //虚拟字节
OLED_WR_Byte(0x00,OLED_CMD); //起始页 0
OLED_WR_Byte(0x07,OLED_CMD); //滚动时间间隔
OLED_WR_Byte(0x07,OLED_CMD); //终止页 7
OLED_WR_Byte(0x00,OLED_CMD); //虚拟字节
OLED_WR_Byte(0xFF,OLED_CMD); //虚拟字节
TEST_MainPage();
OLED_WR_Byte(0x2F,OLED_CMD); //开启滚动
}
显示数据函数
void TEST_MainPage(void)
{
GUI_ShowCHinese(10,20,16,"欢迎来到博客",1);
delay_ms(1500);
delay_ms(1500);
}
效果显示
四、小结
整个命令的使用，其实并不复杂。但是，自己却花了好久时间去弄，最后，才发现是代码的放置出现了问题。对应滚动停止命令，一旦使用后，其ROM中的内容就会被破坏，需要重新对内容进行传输保存，否则就不能够实现滚屏的效果。不过这种方式，好像只能够完成将内容写好后，显示在同一个面板上的滑动。