做一个基于32单片机红外成像的代码
时间: 2024-05-06 13:15:01 浏览: 13
32单片机红外成像需要使用红外传感器和图像处理模块来实现,代码的实现也比较复杂。下面是一个基于32单片机红外成像的代码框架,仅供参考:
```c
#include "stm32f4xx.h"
#include "stdio.h"
#include "stdlib.h"
#include "math.h"
#define PI 3.1415926
#define RED_LED_ON() GPIO_SetBits(GPIOA, GPIO_Pin_8)
#define RED_LED_OFF() GPIO_ResetBits(GPIOA, GPIO_Pin_8)
#define GREEN_LED_ON() GPIO_SetBits(GPIOC, GPIO_Pin_9)
#define GREEN_LED_OFF() GPIO_ResetBits(GPIOC, GPIO_Pin_9)
#define I2C_SCL_H() GPIO_SetBits(GPIOB, GPIO_Pin_10)
#define I2C_SCL_L() GPIO_ResetBits(GPIOB, GPIO_Pin_10)
#define I2C_SDA_H() GPIO_SetBits(GPIOB, GPIO_Pin_11)
#define I2C_SDA_L() GPIO_ResetBits(GPIOB, GPIO_Pin_11)
#define I2C_SDA_READ() GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_11)
#define I2C_ADDR 0xA0
#define IMG_WIDTH 64
#define IMG_HEIGHT 64
uint8_t img_buf[IMG_WIDTH * IMG_HEIGHT];
void i2c_init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
I2C_InitTypeDef I2C_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource10, GPIO_AF_I2C2);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource11, GPIO_AF_I2C2);
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
I2C_InitStructure.I2C_OwnAddress1 = I2C_ADDR;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_ClockSpeed = 100000;
I2C_Init(I2C2, &I2C_InitStructure);
I2C_Cmd(I2C2, ENABLE);
}
void i2c_start(void)
{
I2C_GenerateSTART(I2C2, ENABLE);
while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
}
void i2c_stop(void)
{
I2C_GenerateSTOP(I2C2, ENABLE);
while (I2C_GetFlagStatus(I2C2, I2C_FLAG_STOPF));
}
void i2c_send_byte(uint8_t byte)
{
I2C_SendData(I2C2, byte);
while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
}
uint8_t i2c_read_byte(void)
{
while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_RECEIVED));
return I2C_ReceiveData(I2C2);
}
void i2c_ack(void)
{
I2C_AcknowledgeConfig(I2C2, ENABLE);
while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_RECEIVED));
}
void i2c_nack(void)
{
I2C_AcknowledgeConfig(I2C2, DISABLE);
while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_RECEIVED));
}
void i2c_write_reg(uint8_t reg, uint8_t value)
{
i2c_start();
i2c_send_byte(I2C_ADDR);
i2c_send_byte(reg);
i2c_send_byte(value);
i2c_stop();
}
uint8_t i2c_read_reg(uint8_t reg)
{
uint8_t value;
i2c_start();
i2c_send_byte(I2C_ADDR);
i2c_send_byte(reg);
i2c_start();
i2c_send_byte(I2C_ADDR | 0x01);
value = i2c_read_byte();
i2c_nack();
i2c_stop();
return value;
}
void ov7670_init(void)
{
i2c_init();
// 初始化OV7670
i2c_write_reg(0x12, 0x80); // 复位
for (int i = 0; i < 100000; i++);
i2c_write_reg(0x12, 0x00); // 取消复位
// 设置输出格式
i2c_write_reg(0x12, 0x06);
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置帧率
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置亮度
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置对比度
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置色彩度
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置色度
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置锐度
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置白平衡
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置饱和度
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
// 设置图像输出大小
i2c_write_reg(0x11, 0x81);
i2c_write_reg(0x3a, 0x04);
}
void ov7670_capture(void)
{
uint8_t value;
i2c_write_reg(0x12, 0x00); // 取消复位
// 等待图像稳定
for (int i = 0; i < 100000; i++);
i2c_write_reg(0x12, 0x10); // 启动一帧图像传输
// 等待传输完成
do {
value = i2c_read_reg(0x42);
} while (!(value & 0x08));
i2c_start();
i2c_send_byte(I2C_ADDR);
i2c_send_byte(0x3c);
i2c_start();
i2c_send_byte(I2C_ADDR | 0x01);
// 读取图像数据
for (int i = 0; i < IMG_WIDTH * IMG_HEIGHT; i++) {
img_buf[i] = i2c_read_byte();
}
i2c_nack();
i2c_stop();
}
void img_process(void)
{
// 图像处理代码
}
int main(void)
{
ov7670_init();
while (1) {
ov7670_capture();
img_process();
}
}
```
需要注意的是,这只是一个基础的代码框架,实际的代码需要根据具体的红外传感器和图像处理模块进行调整和优化。同时,由于图像处理是一个比较复杂的过程,需要使用一些算法来实现,因此需要对图像处理算法有一定的了解。