- /* 包含头文件 ----------------------------------------------------------------*/
- #include "bsp_HC-SR501.h"
- /**
- * 函数功能: 人体红外感应模块IO引脚初始化.
- * 输入参数: 无
- * 返 回 值: 无
- * 说 明:对人体红外感应模块接入的引脚进行初始化
- *
- */
- void HC_SR501_GPIO_Init(void)
- {
- /* 定义IO硬件初始化结构体变量 */
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /* 使能(开启)HC_SR501引脚对应IO端口时钟 */
- __RCC_GPIOA_CLK_ENABLE();
-
- //GPIO_InitStruct.IT = GPIO_IT_HIGH;
- /* 设定HC_SR501对应引脚IO为浮空输入模式 */
- GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
- /* 设定HC_SR501对应引脚IO编号 */
- GPIO_InitStruct.Pins = HC_SR501_GPIO_PIN;
- /* 初始化HC_SR501对应引脚IO */
- GPIO_Init(HC_SR501_GPIO, &GPIO_InitStruct);
- }
- /**
- * 函数功能: 简单粗暴的延时函数
- * 输入参数: time;延时时间设置
- * 返 回 值: 无
- * 说 明:软件消抖
- */
- static void HC_SR501_ScanDelay(void)
- {
- uint32_t i,j;
- for(i=0;i<10;++i)
- for(j=0;j<100;++j){ }
- }
- /**
- * 函数功能: 读取引脚的状态
- * 输入参数:无
- * 返 回 值: HC_SR501_HIGH:有人;
- * HC_SR501_LOW:没人
- * 说 明:无。
- */
- HC_SR501_State_TypeDef HC_SR501_StateRead(void)
- {
- /* 读取模块输出信号,若此时输出的是高电平 ,则进入下一步判断*/
- if(GPIO_ReadPin(HC_SR501_GPIO,HC_SR501_GPIO_PIN)==HC_SR501_ACTIVE_LEVEL)
- {
- /* 延时一小段时间,消除抖动 */
- HC_SR501_ScanDelay();
- /* 延时时间后再来判断引脚状态,如果还是高电平那么确实就是高电平 */
- if(GPIO_ReadPin(HC_SR501_GPIO,HC_SR501_GPIO_PIN)==HC_SR501_ACTIVE_LEVEL)
- {
- /* 按键扫描完毕,确定有人,返回有人状态(高电平) */
- return HC_SR501_HIGH;
- }
- }
- /* 没人,返回没人状态 */
- return HC_SR501_LOW;
- }
- #ifndef __BSP_HC_SR501_H__
- #define __BSP_HC_SR501_H__
- /* 包含头文件 ----------------------------------------------------------------*/
- #include "../inc/main.h"
- /* 类型定义 --------------------------------------------------------------*/
- typedef enum
- {
- HC_SR501_LOW = 0,
- HC_SR501_HIGH = 1,
- }HC_SR501_State_TypeDef;
- /* 宏定义 --------------------------------------------------------------------*/
- #define HC_SR501_RCC_CLK_ENABLE() _RCC_GPIOA_CLK_ENABLE()
- #define HC_SR501_GPIO_PIN GPIO_PIN_7
- #define HC_SR501_GPIO CW_GPIOA
- #define HC_SR501_ACTIVE_LEVEL 1
- /* 扩展变量 ------------------------------------------------------------------*/
- /* 函数声明 ------------------------------------------------------------------*/
- void HC_SR501_GPIO_Init(void);
- HC_SR501_State_TypeDef HC_SR501_StateRead(void);
- #endif
- #include "stdlib.h"
- #include "oled.h"
- #include "oledfont.h"
- #include "../inc/main.h"
- void IIC_Start()
- {
- OLED_SCLK_Set();
- OLED_SDIN_Set();
- OLED_SDIN_Clr();
- OLED_SCLK_Clr();
- }
- //IIC Stop
- void IIC_Stop()
- {
- OLED_SCLK_Set() ;
- //OLED_SCLK_Clr();
- OLED_SDIN_Clr();
- OLED_SDIN_Set();
-
- }
- void IIC_Wait_Ack()
- {
- OLED_SCLK_Set() ;
- OLED_SCLK_Clr();
- }
- // IIC Write byte
- void Write_IIC_Byte(unsigned char IIC_Byte)
- {
- unsigned char i;
- unsigned char m,da;
- da=IIC_Byte;
- OLED_SCLK_Clr();
- for(i=0;i<8;i++)
- {
- m=da;
- m=m&0x80;
- if(m==0x80)
- {OLED_SDIN_Set();}
- else OLED_SDIN_Clr();
- da=da<<1;
- OLED_SCLK_Set();
- OLED_SCLK_Clr();
- }
- }
- // IIC Write Command
- void Write_IIC_Command(unsigned char IIC_Command)
- {
- IIC_Start();
- Write_IIC_Byte(0x78); //Slave address,SA0=0
- IIC_Wait_Ack();
- Write_IIC_Byte(0x00); //write command
- IIC_Wait_Ack();
- Write_IIC_Byte(IIC_Command);
- IIC_Wait_Ack();
- IIC_Stop();
- }
- // IIC Write Data
- void Write_IIC_Data(unsigned char IIC_Data)
- {
- IIC_Start();
- Write_IIC_Byte(0x78); //D/C#=0; R/W#=0
- IIC_Wait_Ack();
- Write_IIC_Byte(0x40); //write data
- IIC_Wait_Ack();
- Write_IIC_Byte(IIC_Data);
- IIC_Wait_Ack();
- IIC_Stop();
- }
- void OLED_WR_Byte(unsigned dat,unsigned cmd)
- {
- if(cmd)
- {
- Write_IIC_Data(dat);
-
- }
- else {
- Write_IIC_Command(dat);
-
- }
- }
- // fill_Picture
- void fill_picture(unsigned char fill_Data)
- {
- unsigned char m,n;
- for(m=0;m<8;m++)
- {
- OLED_WR_Byte(0xb0+m,0); //page0-page1
- OLED_WR_Byte(0x00,0); //low column start address
- OLED_WR_Byte(0x10,0); //high column start address
- for(n=0;n<128;n++)
- {
- OLED_WR_Byte(fill_Data,1);
- }
- }
- }
- /***********************Delay****************************************/
- void Delay_50ms(unsigned int Del_50ms)
- {
- unsigned int m;
- for(;Del_50ms>0;Del_50ms--)
- for(m=6245;m>0;m--);
- }
- //坐标设置
- void OLED_Set_Pos(unsigned char x, unsigned char y)
- { OLED_WR_Byte(0xb0+y,OLED_CMD);
- OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
- OLED_WR_Byte((x&0x0f),OLED_CMD);
- }
- //开启OLED显示
- void OLED_Display_On(void)
- {
- OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
- OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
- OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
- }
- //关闭OLED显示
- void OLED_Display_Off(void)
- {
- OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
- OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
- OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
- }
- //清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
- void OLED_Clear(void)
- {
- u8 i,n;
- for(i=0;i<8;i++)
- {
- OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址(0~7)
- OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址
- OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
- for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);
- } //更新显示
- }
- void OLED_On(void)
- {
- u8 i,n;
- for(i=0;i<8;i++)
- {
- OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址(0~7)
- OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址
- OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
- for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA);
- } //更新显示
- }
- //在指定位置显示一个字符,包括部分字符
- //x:0~127
- //y:0~63
- //mode:0,反白显示;1,正常显示
- //size:选择字体 16/12
- void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
- {
- unsigned char c=0,i=0;
- c=chr-' ';//得到偏移后的值
- if(x>Max_Column-1){x=0;y=y+2;}
- if(Char_Size ==16)
- {
- OLED_Set_Pos(x,y);
- for(i=0;i<8;i++)
- OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
- OLED_Set_Pos(x,y+1);
- for(i=0;i<8;i++)
- OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
- }
- else {
- OLED_Set_Pos(x,y);
- for(i=0;i<6;i++)
- OLED_WR_Byte(F6x8[c][i],OLED_DATA);
-
- }
- }
- //m^n函数
- u32 oled_pow(u8 m,u8 n)
- {
- u32 result=1;
- while(n--)result*=m;
- return result;
- }
- //显示2个数字
- //x,y :起点坐标
- //len :数字的位数
- //size:字体大小
- //mode:模式 0,填充模式;1,叠加模式
- //num:数值(0~4294967295);
- void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2)
- {
- u8 t,temp;
- u8 enshow=0;
- for(t=0;t<len;t++)
- {
- temp=(num/oled_pow(10,len-t-1))%10;
- if(enshow==0&&t<(len-1))
- {
- if(temp==0)
- {
- OLED_ShowChar(x+(size2/2)*t,y,' ',size2);
- continue;
- }else enshow=1;
-
- }
- OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2);
- }
- }
- //显示一个字符号串
- void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size)
- {
- unsigned char j=0;
- while (chr[j]!='\0')
- { OLED_ShowChar(x,y,chr[j],Char_Size);
- x+=8;
- if(x>120){x=0;y+=2;}
- j++;
- }
- }
- //显示汉字
- void OLED_ShowCHinese(u8 x,u8 y,u8 no)
- {
- u8 t,adder=0;
- OLED_Set_Pos(x,y);
- for(t=0;t<16;t++)
- {
- OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
- adder+=1;
- }
- OLED_Set_Pos(x,y+1);
- for(t=0;t<16;t++)
- {
- OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
- adder+=1;
- }
- }
- /***********功能描述:显示显示BMP图片128×64起始点坐标(x,y),x的范围0~127,y为页的范围0~7*****************/
- void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
- {
- unsigned int j=0;
- unsigned char x,y;
-
- if(y1%8==0) y=y1/8;
- else y=y1/8+1;
- for(y=y0;y<y1;y++)
- {
- OLED_Set_Pos(x0,y);
- for(x=x0;x<x1;x++)
- {
- OLED_WR_Byte(BMP[j++],OLED_DATA);
- }
- }
- }
- //初始化SSD1306
- void OLED_Init(void)
- {
- GPIO_InitTypeDef configStruct;
- /* enable the OLED GPIO clock */
- __RCC_GPIOB_CLK_ENABLE();
- /* configure OLED GPIO pin */
- configStruct.Pins = GPIO_PIN_10|GPIO_PIN_11;
- configStruct.Mode = GPIO_MODE_OUTPUT_PP;
- configStruct.IT = GPIO_IT_NONE;
- GPIO_Init(CW_GPIOB, &configStruct);
-
- GPIO_WritePin(CW_GPIOB,GPIO_PIN_10,GPIO_Pin_SET);
- GPIO_WritePin(CW_GPIOB,GPIO_PIN_11,GPIO_Pin_SET);
-
- Delay(8000);
- OLED_WR_Byte(0xAE,OLED_CMD);//--display off
- OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
- OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
- OLED_WR_Byte(0x40,OLED_CMD);//--set start line address
- OLED_WR_Byte(0xB0,OLED_CMD);//--set page address
- OLED_WR_Byte(0x81,OLED_CMD); // contract control
- OLED_WR_Byte(0xFF,OLED_CMD);//--128
- OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap
- OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse
- OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
- OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty
- OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction
- OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset
- OLED_WR_Byte(0x00,OLED_CMD);//
-
- OLED_WR_Byte(0xD5,OLED_CMD);//set osc division
- OLED_WR_Byte(0x80,OLED_CMD);//
-
- OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off
- OLED_WR_Byte(0x05,OLED_CMD);//
-
- OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period
- OLED_WR_Byte(0xF1,OLED_CMD);//
-
- OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion
- OLED_WR_Byte(0x12,OLED_CMD);//
-
- OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh
- OLED_WR_Byte(0x30,OLED_CMD);//
-
- OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable
- OLED_WR_Byte(0x14,OLED_CMD);//
-
- OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
- }
- #ifndef __OLED_H
- #define __OLED_H
- #include "cw32l031_gpio.h"
- #include "stdlib.h"
- #include "stdint.h"
- #define OLED_MODE 0
- #define SIZE 8
- #define XLevelL 0x00
- #define XLevelH 0x10
- #define Max_Column 128
- #define Max_Row 64
- #define Brightness 0xFF
- #define X_WIDTH 128
- #define Y_WIDTH 64
- //-----------------OLED IIC端口定义----------------
- #define OLED_SCLK_Clr() GPIO_WritePin(CW_GPIOB,GPIO_PIN_10,GPIO_Pin_RESET)//SCL PB10
- #define OLED_SCLK_Set() GPIO_WritePin(CW_GPIOB,GPIO_PIN_10,GPIO_Pin_SET)
- #define OLED_SDIN_Clr() GPIO_WritePin(CW_GPIOB,GPIO_PIN_11,GPIO_Pin_RESET)//SDA PB11
- #define OLED_SDIN_Set() GPIO_WritePin(CW_GPIOB,GPIO_PIN_11,GPIO_Pin_SET)
-
- #define OLED_CMD 0 //写命令
- #define OLED_DATA 1 //写数据
- typedef uint32_t u32;
- typedef uint16_t u16;
- typedef uint8_t u8;
- //OLED控制用函数
- void OLED_WR_Byte(unsigned dat,unsigned cmd);
- void OLED_Display_On(void);
- void OLED_Display_Off(void);
- void OLED_Init(void);
- void OLED_Clear(void);
- void OLED_DrawPoint(u8 x,u8 y,u8 t);
- void OLED_Fill(u8 x1,u8 y1,u8 x2,u8 y2,u8 dot);
- void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size);
- void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size);
- void OLED_ShowString(u8 x,u8 y, u8 *p,u8 Char_Size);
- void OLED_Set_Pos(unsigned char x, unsigned char y);
- void OLED_ShowCHinese(u8 x,u8 y,u8 no);
- void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);
- void Delay_50ms(unsigned int Del_50ms);
- void Delay_1ms(unsigned int Del_1ms);
- void fill_picture(unsigned char fill_Data);
- void Picture(void);
- void IIC_Start(void);
- void IIC_Stop(void);
- void Write_IIC_Command(unsigned char IIC_Command);
- void Write_IIC_Data(unsigned char IIC_Data);
- void Write_IIC_Byte(unsigned char IIC_Byte);
- void IIC_Wait_Ack(void);
- #endif
- #include "../inc/main.h"
- #include "oled.h"
- #include "bmp.h"
- #include "bsp_HC-SR501.h"
- /******************************************************************************
- * Local pre-processor symbols/macros ('#define')
- ******************************************************************************/
- #define LED_GPIO_PORT CW_GPIOB
- #define LED_GPIO_PINS GPIO_PIN_8 | GPIO_PIN_9
- int32_t main(void)
- {
- uint8_t t = 0;
- GPIO_InitTypeDef GPIO_InitStruct = {0};
- HC_SR501_GPIO_Init();
- RCC_HSI_Enable(RCC_HSIOSC_DIV6);
- __RCC_GPIOC_CLK_ENABLE();
- GPIO_InitStruct.IT = GPIO_IT_NONE;
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
- GPIO_InitStruct.Pins = LED_GPIO_PINS;
- GPIO_Init(LED_GPIO_PORT, &GPIO_InitStruct);
- OLED_Init();
- OLED_Clear();
- t=' ';
- OLED_ShowCHinese(10,0,25);//欢
- OLED_ShowCHinese(18+10,0,26);//迎
- OLED_ShowCHinese(36+10,0,27);//使
- OLED_ShowCHinese(54+10,0,28);//用
- OLED_ShowString(6,3,(uint8_t *)"CW32L031CxTx",16);
- OLED_ShowString(6,6,(uint8_t *)"2023-11-01",16);
- Delay(650000);
- OLED_Clear();
- OLED_ShowCHinese(10,0,29);//芯
- OLED_ShowCHinese(18+10,0,30);//源
- OLED_ShowCHinese(36+10,0,31);//电
- OLED_ShowCHinese(54+10,0,32);//子
- OLED_ShowString(16,3,(uint8_t *)"StartKit REV01",16);
- while (1)
- {
- OLED_Clear();
- OLED_ShowChar(48,6,t,16);//ASCII
- t++;
- if(t>'~')t=' ';
- OLED_ShowNum(103,6,t,3,16);//ASCII
- Delay(650000);
-
- if (t > '~')
- {
- t = ' ';
- }
- if(HC_SR501_StateRead()==HC_SR501_LOW)
- {
- GPIO_WritePin(LED_GPIO_PORT,LED_GPIO_PINS,GPIO_Pin_RESET);
- Delay(0xFFFF);
- }
- else
- {
- GPIO_WritePin(LED_GPIO_PORT,LED_GPIO_PINS,GPIO_Pin_SET);
- OLED_Clear();
- OLED_DrawBMP(0,0,128,8,BMP3);
- Delay(250000);
- }
- }
- }
- /**
- * [url=home.php?mod=space&uid=247401]@brief[/url] 循环延时
- *
- * @param nCount
- */
- void Delay(__IO uint32_t nCount)
- {
- /* Decrement nCount value */
- while (nCount != 0)
- {
- nCount--;
- }
- }
开发板上的硬件接口连接见下图:
实测的效果见下面视频,由于HC-SR501红外人体检测模块检测周边环境灵敏度比较高,拍摄时有时候会一直触发“有人经过”的情景。整体来看,监测的效果比较准确,芯源官方提供的底层库函数接口非常标准,很容易移植。最后再提供一份关于OLED屏操作的指引文档。
0.96寸OLED使用文档新手必看V2.0.pdf
(1.84 MB, 下载次数: 3)