石家庄货运做网站公司,微网站工程案例展示,网站设计服务费一般多少钱,wordpress孕婴模板1.OLED引脚
OLED屏幕的接线按图所示#xff0c;本例中用的是4管脚OLED屏幕 2.驱动程序
配套的驱动程序是“OLED.c#xff0c;主要由以下函数构成#xff1a;1、初始化#xff1b;2、清屏#xff1b;3、显示字符#xff1b;4、显示字符串#xff1b;5、显示数字…1.OLED引脚
OLED屏幕的接线按图所示本例中用的是4管脚OLED屏幕 2.驱动程序
配套的驱动程序是“OLED.c主要由以下函数构成1、初始化2、清屏3、显示字符4、显示字符串5、显示数字6、显示带符号的数字7、显示十六进制数8、显示二进制数。整体代码如下拿来用就好需要魔改的时候再精度不指望能学透所有东西
#include stm32f10x.h
#include OLED_Font.h/*引脚配置*/
#define OLED_W_SCL(x) GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
#define OLED_W_SDA(x) GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))/*引脚初始化*/
void OLED_I2C_Init(void)
{RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode GPIO_Mode_Out_OD;GPIO_InitStructure.GPIO_Speed GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Pin GPIO_Pin_8;GPIO_Init(GPIOB, GPIO_InitStructure);GPIO_InitStructure.GPIO_Pin GPIO_Pin_9;GPIO_Init(GPIOB, GPIO_InitStructure);OLED_W_SCL(1);OLED_W_SDA(1);
}/*** brief I2C开始* param 无* retval 无*/
void OLED_I2C_Start(void)
{OLED_W_SDA(1);OLED_W_SCL(1);OLED_W_SDA(0);OLED_W_SCL(0);
}/*** brief I2C停止* param 无* retval 无*/
void OLED_I2C_Stop(void)
{OLED_W_SDA(0);OLED_W_SCL(1);OLED_W_SDA(1);
}/*** brief I2C发送一个字节* param Byte 要发送的一个字节* retval 无*/
void OLED_I2C_SendByte(uint8_t Byte)
{uint8_t i;for (i 0; i 8; i){OLED_W_SDA(Byte (0x80 i));OLED_W_SCL(1);OLED_W_SCL(0);}OLED_W_SCL(1); //额外的一个时钟不处理应答信号OLED_W_SCL(0);
}/*** brief OLED写命令* param Command 要写入的命令* retval 无*/
void OLED_WriteCommand(uint8_t Command)
{OLED_I2C_Start();OLED_I2C_SendByte(0x78); //从机地址OLED_I2C_SendByte(0x00); //写命令OLED_I2C_SendByte(Command); OLED_I2C_Stop();
}/*** brief OLED写数据* param Data 要写入的数据* retval 无*/
void OLED_WriteData(uint8_t Data)
{OLED_I2C_Start();OLED_I2C_SendByte(0x78); //从机地址OLED_I2C_SendByte(0x40); //写数据OLED_I2C_SendByte(Data);OLED_I2C_Stop();
}/*** brief OLED设置光标位置* param Y 以左上角为原点向下方向的坐标范围0~7* param X 以左上角为原点向右方向的坐标范围0~127* retval 无*/
void OLED_SetCursor(uint8_t Y, uint8_t X)
{OLED_WriteCommand(0xB0 | Y); //设置Y位置OLED_WriteCommand(0x10 | ((X 0xF0) 4)); //设置X位置高4位OLED_WriteCommand(0x00 | (X 0x0F)); //设置X位置低4位
}/*** brief OLED清屏* param 无* retval 无*/
void OLED_Clear(void)
{ uint8_t i, j;for (j 0; j 8; j){OLED_SetCursor(j, 0);for(i 0; i 128; i){OLED_WriteData(0x00);}}
}/*** brief OLED显示一个字符* param Line 行位置范围1~4* param Column 列位置范围1~16* param Char 要显示的一个字符范围ASCII可见字符* retval 无*/
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
{ uint8_t i;OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8); //设置光标位置在上半部分for (i 0; i 8; i){OLED_WriteData(OLED_F8x16[Char - ][i]); //显示上半部分内容}OLED_SetCursor((Line - 1) * 2 1, (Column - 1) * 8); //设置光标位置在下半部分for (i 0; i 8; i){OLED_WriteData(OLED_F8x16[Char - ][i 8]); //显示下半部分内容}
}/*** brief OLED显示字符串* param Line 起始行位置范围1~4* param Column 起始列位置范围1~16* param String 要显示的字符串范围ASCII可见字符* retval 无*/
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
{uint8_t i;for (i 0; String[i] ! \0; i){OLED_ShowChar(Line, Column i, String[i]);}
}/*** brief OLED次方函数* retval 返回值等于X的Y次方*/
uint32_t OLED_Pow(uint32_t X, uint32_t Y)
{uint32_t Result 1;while (Y--){Result * X;}return Result;
}/*** brief OLED显示数字十进制正数* param Line 起始行位置范围1~4* param Column 起始列位置范围1~16* param Number 要显示的数字范围0~4294967295* param Length 要显示数字的长度范围1~10* retval 无*/
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{uint8_t i;for (i 0; i Length; i) {OLED_ShowChar(Line, Column i, Number / OLED_Pow(10, Length - i - 1) % 10 0);}
}/*** brief OLED显示数字十进制带符号数* param Line 起始行位置范围1~4* param Column 起始列位置范围1~16* param Number 要显示的数字范围-2147483648~2147483647* param Length 要显示数字的长度范围1~10* retval 无*/
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
{uint8_t i;uint32_t Number1;if (Number 0){OLED_ShowChar(Line, Column, );Number1 Number;}else{OLED_ShowChar(Line, Column, -);Number1 -Number;}for (i 0; i Length; i) {OLED_ShowChar(Line, Column i 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 0);}
}/*** brief OLED显示数字十六进制正数* param Line 起始行位置范围1~4* param Column 起始列位置范围1~16* param Number 要显示的数字范围0~0xFFFFFFFF* param Length 要显示数字的长度范围1~8* retval 无*/
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{uint8_t i, SingleNumber;for (i 0; i Length; i) {SingleNumber Number / OLED_Pow(16, Length - i - 1) % 16;if (SingleNumber 10){OLED_ShowChar(Line, Column i, SingleNumber 0);}else{OLED_ShowChar(Line, Column i, SingleNumber - 10 A);}}
}/*** brief OLED显示数字二进制正数* param Line 起始行位置范围1~4* param Column 起始列位置范围1~16* param Number 要显示的数字范围0~1111 1111 1111 1111* param Length 要显示数字的长度范围1~16* retval 无*/
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{uint8_t i;for (i 0; i Length; i) {OLED_ShowChar(Line, Column i, Number / OLED_Pow(2, Length - i - 1) % 2 0);}
}/*** brief OLED初始化* param 无* retval 无*/
void OLED_Init(void)
{uint32_t i, j;for (i 0; i 1000; i) //上电延时{for (j 0; j 1000; j);}OLED_I2C_Init(); //端口初始化OLED_WriteCommand(0xAE); //关闭显示OLED_WriteCommand(0xD5); //设置显示时钟分频比/振荡器频率OLED_WriteCommand(0x80);OLED_WriteCommand(0xA8); //设置多路复用率OLED_WriteCommand(0x3F);OLED_WriteCommand(0xD3); //设置显示偏移OLED_WriteCommand(0x00);OLED_WriteCommand(0x40); //设置显示开始行OLED_WriteCommand(0xA1); //设置左右方向0xA1正常 0xA0左右反置OLED_WriteCommand(0xC8); //设置上下方向0xC8正常 0xC0上下反置OLED_WriteCommand(0xDA); //设置COM引脚硬件配置OLED_WriteCommand(0x12);OLED_WriteCommand(0x81); //设置对比度控制OLED_WriteCommand(0xCF);OLED_WriteCommand(0xD9); //设置预充电周期OLED_WriteCommand(0xF1);OLED_WriteCommand(0xDB); //设置VCOMH取消选择级别OLED_WriteCommand(0x30);OLED_WriteCommand(0xA4); //设置整个显示打开/关闭OLED_WriteCommand(0xA6); //设置正常/倒转显示OLED_WriteCommand(0x8D); //设置充电泵OLED_WriteCommand(0x14);OLED_WriteCommand(0xAF); //开启显示OLED_Clear(); //OLED清屏
}3.主函数测试
#include stm32f10x.h // Device header
#include Delay.h
#include OLED.hint main(void)
{OLED_Init();OLED_ShowChar(1,1, A);OLED_ShowString(1,3, HelloWorld!);OLED_ShowNum(2,1, 12345, 5);OLED_ShowSignedNum(2,7, 12345,5);OLED_ShowHexNum(3,1, 0xAA55, 4);OLED_ShowBinNum(4,1,0xAA55,16);while(1){}
}结果如下图所示
