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配置霍尔传感器参数的示例代码
c
// 定义霍尔传感器状态和电机位置的解码表
const int hall_to_position[8] = {0, 60, 120, 180, 240, 300, -1, -1}; // -1 表示无效状态
// 霍尔传感器输入引脚配置
void HallSensor_Init()
{
// 配置霍尔传感器输入引脚
GPIO_Init(HALL_SENSOR_A_PIN, GPIO_MODE_INPUT);
GPIO_Init(HALL_SENSOR_B_PIN, GPIO_MODE_INPUT);
GPIO_Init(HALL_SENSOR_C_PIN, GPIO_MODE_INPUT);
}
// 读取霍尔传感器状态
int ReadHallSensors()
{
int hall_state = 0;
hall_state |= (GPIO_ReadPin(HALL_SENSOR_A_PIN) << 2);
hall_state |= (GPIO_ReadPin(HALL_SENSOR_B_PIN) << 1);
hall_state |= GPIO_ReadPin(HALL_SENSOR_C_PIN);
return hall_state;
}
// 计算转子位置
int CalculateRotorPosition(int hall_state)
{
return hall_to_position[hall_state];
}
// 估算转速
float EstimateSpeed(int current_position, int previous_position, float deltaTime)
{
float speed = (current_position - previous_position) / deltaTime;
return speed;
}
// 主控制循环
void MainControlLoop()
{
static int previous_position = 0;
static float previous_time = 0;
int hall_state = ReadHallSensors();
int current_position = CalculateRotorPosition(hall_state);
float current_time = GetTime();
float deltaTime = current_time - previous_time;
float speed = EstimateSpeed(current_position, previous_position, deltaTime);
previous_position = current_position;
previous_time = current_time;
// FOC 控制算法调用
FOC_Control(current_position, speed);
}
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