【嵌入式】使用STM32实现OLED屏显
目录
- 一、显示学号姓名
- 二、左右滚动长字符
实验目的：
- 显示自己的学号和姓名。
- 上下或左右的滑动显示长字符。
- 显示AHT20的温度和湿度。
实验准备：
硬件：
- 野火指南者开发板
- 0.96寸OLED显示屏模块（ IIC/SPI）
显示屏介绍及相关资料：0.96inch SPI OLEDModule
商家资料：0.96寸SPI_OLED模块配套资料包
软件：
- Keil5 MDK
- 野火串口调试助手
工程模板：
本次采用的是配套资料包里的工程模板
1-Demo→Demo_STM32→0.96inch_OLED_Demo_STM32F103ZET6_Hardware_4-wire_SPI
这是对应的连线方法
keil5设置：
我使用的是ST-LINK
打开setting
add STM32F10xHigh-density Flash
一、显示学号姓名
这是本次实验要显示的全部字模,
"浮",0x00,0x08,0x20,0x3C,0x13,0xC0,0x10,0x04,0x82,0x44,0x41,0x28,0x48,0x00,0x0B,0xF8,
0x10,0x10,0x10,0x20,0xE7,0xFE,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0xA0,0x00,0x40,/*"浮",0*/
"空",0x02,0x00,0x01,0x00,0x7F,0xFE,0x40,0x02,0x88,0x24,0x10,0x10,0x20,0x08,0x00,0x00,
0x1F,0xF0,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x7F,0xFC,0x00,0x00,/*"空",1*/
"花",0x08,0x20,0x08,0x20,0xFF,0xFE,0x08,0x20,0x00,0x00,0x08,0x88,0x08,0x90,0x10,0xA0,
0x30,0xC0,0x50,0x80,0x91,0x80,0x12,0x82,0x14,0x82,0x10,0x82,0x10,0x7E,0x10,0x00,/*"花",2*/
"园",0x00,0x00,0x7F,0xFC,0x40,0x04,0x4F,0xE4,0x40,0x04,0x40,0x04,0x5F,0xF4,0x44,0x84,
0x44,0x84,0x44,0x84,0x48,0x94,0x48,0x94,0x50,0x74,0x40,0x04,0x7F,0xFC,0x40,0x04,/*"园",3*/
"重",0x00,0x10,0x00,0xF8,0x3F,0x00,0x01,0x00,0xFF,0xFE,0x01,0x00,0x1F,0xF0,0x11,0x10,
0x1F,0xF0,0x11,0x10,0x1F,0xF0,0x01,0x00,0x3F,0xF8,0x01,0x00,0xFF,0xFE,0x00,0x00,/*"重",0*/
"庆",0x01,0x00,0x00,0x80,0x3F,0xFE,0x20,0x00,0x20,0x80,0x20,0x80,0x20,0x80,0x2F,0xFC,
0x20,0x80,0x21,0x40,0x21,0x40,0x22,0x20,0x42,0x20,0x44,0x10,0x88,0x08,0x10,0x06,/*"庆",1*/
"交",0x02,0x00,0x01,0x00,0x01,0x00,0xFF,0xFE,0x00,0x00,0x10,0x10,0x10,0x08,0x20,0x24,
0x48,0x24,0x04,0x40,0x02,0x80,0x01,0x00,0x02,0x80,0x0C,0x40,0x30,0x30,0xC0,0x0E,/*"交",2*/
"大",0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0xFF,0xFE,0x01,0x00,0x01,0x00,
0x02,0x80,0x02,0x80,0x04,0x40,0x04,0x40,0x08,0x20,0x10,0x10,0x20,0x08,0xC0,0x06,/*"大",3*/
"温",0x00,0x00,0x23,0xF8,0x12,0x08,0x12,0x08,0x83,0xF8,0x42,0x08,0x42,0x08,0x13,0xF8,
0x10,0x00,0x27,0xFC,0xE4,0xA4,0x24,0xA4,0x24,0xA4,0x24,0xA4,0x2F,0xFE,0x00,0x00,/*"温",0*/
"湿",0x00,0x00,0x27,0xF8,0x14,0x08,0x14,0x08,0x87,0xF8,0x44,0x08,0x44,0x08,0x17,0xF8,
0x11,0x20,0x21,0x20,0xE9,0x24,0x25,0x28,0x23,0x30,0x21,0x20,0x2F,0xFE,0x00,0x00,/*"湿",1*/
"度",0x01,0x00,0x00,0x80,0x3F,0xFE,0x22,0x20,0x22,0x20,0x3F,0xFC,0x22,0x20,0x22,0x20,
0x23,0xE0,0x20,0x00,0x2F,0xF0,0x24,0x10,0x42,0x20,0x41,0xC0,0x86,0x30,0x38,0x0E,/*"度",2*/
将字模代码添加到工程中
user→gui.c→oledfont.h→cfont 16[]
代码实现
test.c→test.h声明一个新的函数void TEST_name(void)；
然后在test.c中实现
void TEST_name(void)
{
GUI_ShowString(0,16,"631807060512",16,1);
GUI_ShowCHinese(0,32,16,"浮空花园",1);
}
main函数
int main(void)
{
delay_init(); //延时函数初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //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）
while(1)
{
TEST_name();
delay_ms(1500);
delay_ms(1300);
}
}
函数说明——
GUI_ShowString() 的参数
- 参数一：X 坐标
- 参数二：Y 坐标
- 参数三：字符串（ASCLL码中的）
- 参数四：bit（表示字符显示格式，这里我用的 16 ，和汉字一样高）
- 参数五：显示样式（1：白字黑底；0：黑字白底）
GUI_ShowChinese() 的参数
- 参数一：X 坐标
- 参数二：Y 坐标
- 参数三：汉字点阵大小（这里使用的是 16×16 的，参数应该是 16）
- 参数四：要显示的汉字
- 参数五：显示样式（1：白字黑底；0：黑字白底）
显示效果
二、左右滚动长字符
代码实现
main函数
int main(void)
{
delay_init(); //延时函数初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //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）
while(1)
{
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(0x01,OLED_CMD); //终止页 1
OLED_WR_Byte(0x00,OLED_CMD); //虚拟字节
OLED_WR_Byte(0xFF,OLED_CMD); //虚拟字节
TEST_name();
OLED_WR_Byte(0x2F,OLED_CMD); //开启滚动
delay_ms(1500);
delay_ms(1350);
}
}
TEST_name
void TEST_name(void)
{
GUI_ShowCHinese(0,0,16,"重庆交大",1);
GUI_ShowString(0,16,"631807060512",16,1);
GUI_ShowCHinese(0,32,16,"浮空花园",1);
}
显示效果