imu
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/*
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atti_esit Task
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atti_esti Task
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*/
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/* Includes ----------------------------------------------------------------- */
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#include "cmsis_os2.h"
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#include "task/user_task.h"
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/* USER INCLUDE BEGIN */
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#include "bsp/mm.h"
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#include "bsp/pwm.h"
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#include "bsp/gpio.h"
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#include "bsp/flash.h"
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#include "component/ahrs.h"
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#include "component/pid.h"
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#include "device/bmi088.h"
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#include "task/user_task.h"
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/* USER INCLUDE END */
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/* Private typedef ---------------------------------------------------------- */
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/* Private define ----------------------------------------------------------- */
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/* 使用Sector 11末尾存储校准数据 */
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#define FLASH_CALI_ADDR (ADDR_FLASH_SECTOR_11 + 0x1F000) /* Sector 11末尾 */
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#define FLASH_CALI_MAGIC 0x42494D38 /* "BMI8" 魔数，用于验证数据有效性 */
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#define CALIB_SAMPLES 10000 /* 校准采样数量 */
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/* Private macro ------------------------------------------------------------ */
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/* Private variables -------------------------------------------------------- */
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/* USER STRUCT BEGIN */
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BMI088_t bmi088;
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/* 校准请求标识位 */
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volatile bool request_calibration = false;
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AHRS_t gimbal_ahrs;
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AHRS_Magn_t magn;
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AHRS_Eulr_t eulr_to_send;
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KPID_t imu_temp_ctrl_pid;
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BMI088_Cali_t cali_bmi088 = {
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.gyro_offset = {0.0f, 0.0f, 0.0f}, /* 默认值，将从Flash加载 */
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};
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/* Flash存储结构 */
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typedef struct {
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uint32_t magic; /* 魔数，用于验证数据有效性 */
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BMI088_Cali_t cali_data;
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} Flash_Cali_t;
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static const KPID_Params_t imu_temp_ctrl_pid_param = {
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.k = 0.3f,
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.p = 1.0f,
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.i = 0.01f,
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.d = 0.0f,
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.i_limit = 1.0f,
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.out_limit = 1.0f,
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};
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/* 校准相关变量 */
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typedef enum {
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CALIB_IDLE, // 空闲状态
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CALIB_RUNNING, // 正在校准
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CALIB_DONE // 校准完成
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} CalibState_t;
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static CalibState_t calib_state = CALIB_IDLE;
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static uint16_t calib_count = 0;
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static struct {
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float x_sum;
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float y_sum;
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float z_sum;
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} gyro_sum= {0.0f,0.0f,0.0f};
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/* 按钮回调函数：设置校准请求标识位 */
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static void request_gyro_calibration(void) {
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request_calibration = true;
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}
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/* 从Flash加载校准数据 */
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static bool load_calibration_from_flash(void) {
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Flash_Cali_t flash_data;
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BSP_Flash_ReadBytes(FLASH_CALI_ADDR, &flash_data, sizeof(Flash_Cali_t));
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/* 验证魔数 */
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if (flash_data.magic == FLASH_CALI_MAGIC) {
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cali_bmi088 = flash_data.cali_data;
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return true;
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}
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return false;
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}
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/* 保存校准数据到Flash */
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static void save_calibration_to_flash(void) {
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Flash_Cali_t flash_data;
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flash_data.magic = FLASH_CALI_MAGIC;
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flash_data.cali_data = cali_bmi088;
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/* 擦除扇区（注意：这会擦除整个Sector 11，如果有其他数据需要保留请修改） */
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BSP_Flash_EraseSector(FLASH_SECTOR_11);
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/* 写入数据 */
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BSP_Flash_WriteBytes(FLASH_CALI_ADDR, (uint8_t*)&flash_data, sizeof(Flash_Cali_t));
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}
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/* USER STRUCT END */
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/* Private function --------------------------------------------------------- */
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/* Exported functions ------------------------------------------------------- */
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void Task_atti_esit(void *argument) {
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void Task_atti_esti(void *argument) {
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(void)argument; /* 未使用argument，消除警告 */
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osDelay(ATTI_ESIT_INIT_DELAY); /* 延时一段时间再开启任务 */
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uint32_t tick = osKernelGetTickCount(); /* 控制任务运行频率的计时 */
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/* USER CODE INIT BEGIN */
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/* 尝试从Flash加载校准数据 */
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if (!load_calibration_from_flash()) {
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/* Flash中无有效校准数据，使用默认值 */
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cali_bmi088.gyro_offset.x = 0.0f;
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cali_bmi088.gyro_offset.y = 0.0f;
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cali_bmi088.gyro_offset.z = 0.0f;
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}
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BMI088_Init(&bmi088, &cali_bmi088);
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AHRS_Init(&gimbal_ahrs, &magn, BMI088_GetUpdateFreq(&bmi088));
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PID_Init(&imu_temp_ctrl_pid, KPID_MODE_NO_D,
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1.0f / BMI088_GetUpdateFreq(&bmi088), &imu_temp_ctrl_pid_param);
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BSP_PWM_Start(BSP_PWM_IMU_HEAT_PWM);
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/* 注册按钮回调函数并启用中断 */
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BSP_GPIO_RegisterCallback(BSP_GPIO_USER_KEY, request_gyro_calibration);
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BSP_GPIO_EnableIRQ(BSP_GPIO_USER_KEY);
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/* USER CODE INIT END */
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while (1) {
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/* USER CODE BEGIN */
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BMI088_WaitNew();
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BMI088_AcclStartDmaRecv();
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BMI088_AcclWaitDmaCplt();
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BMI088_GyroStartDmaRecv();
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BMI088_GyroWaitDmaCplt();
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/* 锁住RTOS内核防止数据解析过程中断，造成错误 */
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osKernelLock();
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/* 接收完所有数据后，把数据从原始字节加工成方便计算的数据 */
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BMI088_ParseAccl(&bmi088);
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BMI088_ParseGyro(&bmi088);
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// IST8310_Parse(&ist8310);
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/* 检查校准请求标识位 */
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if (request_calibration && calib_state == CALIB_IDLE) {
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calib_state = CALIB_RUNNING;
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calib_count = 0;
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gyro_sum.x_sum = 0.0f;
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gyro_sum.y_sum = 0.0f;
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gyro_sum.z_sum = 0.0f;
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request_calibration = false; /* 清除标识位 */
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}
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/* 陀螺仪校准处理 */
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if (calib_state == CALIB_RUNNING) {
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/* 累加陀螺仪数据用于计算零偏 */
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gyro_sum.x_sum += bmi088.gyro.x;
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gyro_sum.y_sum += bmi088.gyro.y;
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gyro_sum.z_sum += bmi088.gyro.z;
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calib_count++;
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/* 达到采样数量后计算平均值并更新零偏 */
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if (calib_count >= CALIB_SAMPLES) {
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/* 计算平均值作为零偏 */
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cali_bmi088.gyro_offset.x = gyro_sum.x_sum / CALIB_SAMPLES;
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cali_bmi088.gyro_offset.y = gyro_sum.y_sum / CALIB_SAMPLES;
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cali_bmi088.gyro_offset.z = gyro_sum.z_sum / CALIB_SAMPLES;
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/* 保存校准数据到Flash */
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save_calibration_to_flash();
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/* 校准完成，重置为空闲状态以便下次校准 */
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calib_state = CALIB_IDLE;
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/* 重新初始化BMI088以应用新的校准数据 */
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BMI088_Init(&bmi088, &cali_bmi088);
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AHRS_Init(&gimbal_ahrs, &magn, BMI088_GetUpdateFreq(&bmi088));
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}
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}
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/* 只有在非校准状态下才进行正常的姿态解析 */
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if (calib_state != CALIB_RUNNING) {
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/* 根据设备接收到的数据进行姿态解析 */
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AHRS_Update(&gimbal_ahrs, &bmi088.accl, &bmi088.gyro, &magn);
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/* 根据解析出来的四元数计算欧拉角 */
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AHRS_GetEulr(&eulr_to_send, &gimbal_ahrs);
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}
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osKernelUnlock();
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BSP_PWM_SetComp(BSP_PWM_IMU_HEAT_PWM, PID_Calc(&imu_temp_ctrl_pid, 40.0f, bmi088.temp, 0.0f, 0.0f));
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/* USER CODE END */
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osDelayUntil(tick); /* 运行结束，等待下一次唤醒 */
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}
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}
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