2022.11.13更新
环境：Ubuntu20.04
安装依赖
sudo apt install mesa-common-dev freeglut3-dev libblas-dev liblapack-dev libeigen3-dev拷贝eigen3库
sudo cp -r /usr/include/eigen3 /usr/local/include/eigen3安装JAVA（需要在安装LCM前安装JAVA保证后续链接成功）：
sudo apt install default-jdk安装LCM实时通信库：
git clone https://github.com/lcm-proj/lcm.git
cd lcm
mkdir build && cd build
cmake ..
make
sudo make install
sudo ldconfig安装QT，安装完成后修改script/find_qt_path.sh中的对应路径
git clone https://github.com/mit-biomimetics/Cheetah-Software.git
cd Cheetah-Software
mkdir build && cd build
cmake .. # there are still some warnings here
./../scripts/make_types.sh # you may see an error like `rm: cannot remove...` but this is okay会遇到如下错误
Cloning into 'googletest-src'...
fatal: invalid reference: master
CMake Error at googletest-download/googletest-download-prefix/tmp/googletest-download-gitclone.cmake:40 (message):
Failed to checkout tag: 'master'将common/Cmakelist.txt第30行master改成main即可
make -j8编译会出现错误
-
error: ‘char* __builtin_strncpy(char*, const char*, long unsigned int)’ specified bound 2056 equals destination size [-Werror=stringop-truncation]
将
Cmakelist.txt里面的两个-Werror删掉 -
提示缺少stropts.h文件
cd /usr/include sudo touch stropts.h -
error: ‘ioctl’ was not declared in this scope修改
robot\src\rt\rt_serial.cpp#define termios asmtermios //#include <asm/termios.h> #include<asm/ioctls.h> #include<asm/termbits.h> #undef termios #include<sys/ioctl.h>
重新编译
make -j8如果不需要模拟，需要
cmake -DMINI_CHEETAH_BUILD=TRUE -DNO_SIM=TRUE ..
make -j8运行common/test-common进行测试
运行sim/sim启动模拟器
如果在使用WSL，提示QOpenGLWidget: Failed to make context current，需要修改.bashrc
export LIBGL_ALWAYS_SOFTWARE=1
unset LIBGL_ALWAYS_INDIRECT
使用Logitech F310手柄，手柄背面的模式应选择“X”，并重新连接；正面靠近模式按钮的LED应该熄灭。
创建CyberdogInterface类，继承CustomInterface类。由于父类的robot_data和motor_cmd都是protected，在外部无法读取，且外部引用接口时需要使用Robot_Data与Motor_Cmd结构体来创建指针，故需要为结构体创建别名以便调用
using CyberdogData = Robot_Data;
using CyberdogCmd = Motor_Cmd;并在类中添加cyberdogData和cyberdogCmd结构体，为了对应同样也使用别名结构体
class CyberdogInterface : public CustomInterface
{
public:
CyberdogInterface(const double &loop_rate) : CustomInterface(loop_rate) {};
~CyberdogInterface() {};
CyberdogData cyberdogData;
CyberdogCmd cyberdogCmd;
private:
void UserCode();
};CustomInterface类会新建一个用户线程循环执行UserCode()，所以只需要编写UserCode()函数，用来传递接收和发送的数据
void CyberdogInterface::UserCode()
{
cyberdogData = robot_data;
motor_cmd = cyberdogCmd;
}在robot/include/RobotRunner.h中的RobotRunner类中添加与Cyberdog相关的数据结构体指针
CyberdogData *cyberdogData;
CyberdogCmd *cyberdogCmd;控制器的入口在user/MIT_Controller/main_helper.cpp，其中执行了如下代码
MiniCheetahHardwareBridge hw(ctrl, gMasterConfig.load_from_file);
hw.run();上述代码中的run()函数在robot/src/HardwareBridge.cpp，注释掉所有与SPI、IMU相关的代码，
在MiniCheetahHardwareBridge类中声明指针并在创建run()函数中实例化CyberdogInterface对象
CyberdogInterface *_cyberdogInterface = nullptr;
_cyberdogInterface = new CyberdogInterface(500);将_cyberdogInterface中定义的cyberdogData与cyberdogCmd结构体地址赋给_robotRunner的对应指针
_robotRunner->cyberdogData = &_cyberdogInterface->cyberdogData;
_robotRunner->cyberdogCmd = &_cyberdogInterface->cyberdogCmd;创建新线程，执行CyberdogProcessData()函数，对IMU数据进行处理
_cyberdogThread = std::thread(&MiniCheetahHardwareBridge::CyberdogProcessData, this);其中CyberdogProcessData()函数对IMU数据进行处理分发并进行数据显示
void MiniCheetahHardwareBridge::CyberdogProcessData()
{
long count = 0;
while(true)
{
count++;
if(count % 100000000 == 0)
{
count = 0;
printf("interval:---------%.4f-------------\n", _cyberdogInterface->cyberdogData.ctrl_topic_interval);
printf("rpy [3]:");
for(int i = 0; i < 3; i++)
printf(" %.2f", _cyberdogInterface->cyberdogData.rpy[i]);
printf("\nacc [3]:");
for(int i = 0; i < 3; i++)
printf(" %.2f", _cyberdogInterface->cyberdogData.acc[i]);
printf("\nquat[4]:");
for(int i = 0; i < 4; i++)
printf(" %.2f", _cyberdogInterface->cyberdogData.quat[i]);
printf("\nomeg[3]:");
for(int i = 0; i < 3; i++)
printf(" %.2f", _cyberdogInterface->cyberdogData.omega[i]);
printf("\nq [12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogData.q[i]);
printf("\nqd [12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogData.qd[i]);
printf("\ntau[12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogData.tau[i]);
printf("\nq_des[12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogCmd.q_des[i]);
printf("\nqd_des[12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogCmd.qd_des[i]);
printf("\nkp_des[12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogCmd.kp_des[i]);
printf("\nkd_des[12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogCmd.kd_des[i]);
printf("\ntau_des[12]:");
for(int i = 0; i < 12; i++)
printf(" %.2f", _cyberdogInterface->cyberdogCmd.tau_des[i]);
printf("\n\n");
}
//IMU
for(int i = 0; i < 3; i++)
{
_vectorNavData.accelerometer(i) = _cyberdogInterface->cyberdogData.acc[i];
}
for(int i = 0; i < 4; i++)
{
// 注意 Cyberdog SDK 的四元数顺序为 xyzw 需要转成 wxyz
// _vectorNavData.quat(i) = _cyberdogInterface->cyberdogData.quat[i];
_vectorNavData.quat[0] = _cyberdogInterface->cyberdogData.quat[1];
_vectorNavData.quat[1] = _cyberdogInterface->cyberdogData.quat[2];
_vectorNavData.quat[2] = _cyberdogInterface->cyberdogData.quat[3];
_vectorNavData.quat[3] = _cyberdogInterface->cyberdogData.quat[0];
}
for(int i = 0; i < 3; i++)
{
_vectorNavData.gyro(i) = _cyberdogInterface->cyberdogData.omega[i];
}
usleep(5000);
}
}在HardwareBridgerun()函数的最后执行RobotRunner的任务，
_robotRunner->start();RobotRunner类继承PeriodicTask类，函数start()会先执行初始化init()函数，再创建一个线程，执行loopFunction()函数
init();
_thread = std::thread(&PeriodicTask::loopFunction, this);在init();函数中构建机器人模型，并初始化开机时腿的位置
_quadruped = buildCyberdog<float>();
_jpos_initializer = new JPosInitializer<float>(3., controlParameters->controller_dt);在common/include/Dynamics路径下新建CyberdogParams.h文件并新建buildCyberdog()函数，写入cyberdog的参数（不知道是否正确，数据来自 A姐代码 ）
template<typename T>
Quadruped<T> buildCyberdog()
{
Quadruped<T> cheetah;
cheetah._robotType = RobotType::MINI_CHEETAH;
// Parameter
cheetah._bodyMass = 6.52;
cheetah._bodyLength = 0.47072;
cheetah._bodyWidth = 0.1;
cheetah._bodyHeight = 0.1;
cheetah._abadGearRatio = 6.0;
cheetah._hipGearRatio = 6.0;
cheetah._kneeGearRatio = 9.0;
cheetah._abadLinkLength = 0.10715;
cheetah._hipLinkLength = 0.2;
cheetah._kneeLinkLength = 0.217;
cheetah._kneeLinkY_offset = 0.0;
cheetah._maxLegLength = 0.409;
cheetah._motorTauMax = 3.0;
cheetah._batteryV = 24.0;
cheetah._motorKT = 0.05;
cheetah._motorR = 0.173;
cheetah._jointDamping = 0.01;
cheetah._jointDryFriction = 0.2;
/* Spatial Inertia */
MassProperties<T> abadMassProperties;
abadMassProperties << 5.090000033378601e-01, -2.290499862283468e-03, 9.161999914795160e-04, -2.545000053942204e-03, 3.809741465374827e-04, 6.938322330825031e-04, 4.733563982881606e-04, 5.070999577583279e-06, -1.165249886980746e-05, 1.252289894182468e-05;
cheetah._abadInertia = SpatialInertia<T>(abadMassProperties);
MassProperties<T> hipMassProperties;
hipMassProperties << 6.639999747276306e-01, -1.925599877722561e-03, -2.217759937047958e-02, -1.235039997845888e-02, 3.337649162858725e-03, 2.638501580804586e-03, 1.309316023252904e-03, -9.303330443799496e-06, -1.928161655087024e-04, -7.150374585762620e-07;
cheetah._hipInertia = SpatialInertia<T>(hipMassProperties);
MassProperties<T> kneeMassProperties;
kneeMassProperties << 1.140000000596046e-01, 8.093999931588769e-04, 4.559999979392160e-06, -1.281473971903324e-02, 1.455305144190788e-03, 2.152151660993695e-03, 7.054469315335155e-04, 5.125896223034943e-07, 8.388462447328493e-05, -3.237600054717404e-08;
cheetah._kneeInertia = SpatialInertia<T>(kneeMassProperties);
MassProperties<T> abadRotorMassProperties;
abadRotorMassProperties << 5.499999970197678e-02, 0.000000000000000e+00, 0.000000000000000e+00, 0.000000000000000e+00, 6.299999949987978e-05, 3.300000025774352e-05, 3.300000025774352e-05, 0.000000000000000e+00, 1.311341551839262e-12, 0.000000000000000e+00;
cheetah._abadRotorInertia = SpatialInertia<T>(abadRotorMassProperties);
MassProperties<T> hipRotorMassProperties;
hipRotorMassProperties << 5.499999970197678e-02, 0.000000000000000e+00, 0.000000000000000e+00, 0.000000000000000e+00, 3.300000025774352e-05, 6.299999949987978e-05, 3.300000025774352e-05, -1.311341551839262e-12, 0.000000000000000e+00, 0.000000000000000e+00;
cheetah._hipRotorInertia = SpatialInertia<T>(hipRotorMassProperties);
MassProperties<T> kneeRotorMassProperties;
kneeRotorMassProperties << 5.499999970197678e-02, 0.000000000000000e+00, 0.000000000000000e+00, 0.000000000000000e+00, 3.300000025774352e-05, 6.299999949987978e-05, 3.300000025774352e-05, -1.311341551839262e-12, 0.000000000000000e+00, 0.000000000000000e+00;
cheetah._kneeRotorInertia = SpatialInertia<T>(kneeRotorMassProperties);
MassProperties<T> bodyMassProperties;
bodyMassProperties << 6.519999980926514e+00, 1.284440010786057e-01, -1.564799924381077e-03, -5.737599916756153e-03, 3.205142542719841e-02, 1.370674073696136e-01, 1.494587212800980e-01, 5.662297917297110e-05, 2.728030551224947e-03, -2.321734355064109e-04;
cheetah._bodyInertia = SpatialInertia<T>(bodyMassProperties);
// locations
cheetah._abadRotorLocation = Vec3<T>(0.23536, 0.05, 0);
cheetah._abadLocation = Vec3<T>(cheetah._bodyLength, cheetah._bodyWidth, 0) * 0.5;
cheetah._hipLocation = Vec3<T>(0, cheetah._abadLinkLength, 0);
cheetah._hipRotorLocation = Vec3<T>(0, 0.04, 0);
cheetah._kneeLocation = Vec3<T>(0, 0, -cheetah._hipLinkLength);
cheetah._kneeRotorLocation = Vec3<T>(0, 0, 0);
return cheetah;
}实例化JPosInitializer初始化腿位置会调用_UpdateParam()函数，进而读取config/initial_jpos_ctrl.yaml文件内的初始值target_jpos和mid_jpos
target_jpos: [
-0.6, -1.0, 2.7,
0.6, -1.0, 2.7,
-0.6, -1.0, 2.7,
0.6, -1.0, 2.7]
mid_jpos: [
-1.8, 0., 2.7,
1.8, 0., 2.7,
-1.7, 0.5, 0.5,
1.7, 0.5, 0.5]回到前文，在loopFunction()中会循环执行run()函数，这个函数是一个纯虚函数，真正执行RobotRunner类中的run()函数。这里需要对robot/src/RobotRunner.cpp中两个函数进行修改
setupStep(); // 更新来自机器人的数据到LegController对象
finalizeStep(); // 将生成的leg controller控制命令数据更新到机器人各控制系统在函数setupStep()中，更新来自Cyberdog的数据（这里的cyberdogData是_cyberdogInterface中的数据地址，由前文传入）
_legController->updateData(cyberdogData);重载updateData()函数，将前文从Cyberdog获得的数据传入datas数组中
template<typename T>
void LegController<T>::updateData(const CyberdogData *cyberdogData)
{
for(int leg = 0; leg < 4; leg++)
{
// q: 关节角
datas[leg].q(0) = cyberdogData->q[0 + leg * 3];
datas[leg].q(1) = cyberdogData->q[1 + leg * 3];
datas[leg].q(2) = cyberdogData->q[2 + leg * 3];
// qd 关节角速度
datas[leg].qd(0) = cyberdogData->qd[0 + leg * 3];
datas[leg].qd(1) = cyberdogData->qd[1 + leg * 3];
datas[leg].qd(2) = cyberdogData->qd[2 + leg * 3];
// J and p 雅可比和足端位置
computeLegJacobianAndPosition<T>(_quadruped, datas[leg].q, &(datas[leg].J),
&(datas[leg].p), leg);
// v 足端速度
datas[leg].v = datas[leg].J * datas[leg].qd;
// // tau 电机扭矩
// datas[leg].tauEstimate(0) = cyberdogData->tau[0 + leg * 3];
// datas[leg].tauEstimate(1) = cyberdogData->tau[1 + leg * 3];
// datas[leg].tauEstimate(2) = cyberdogData->tau[2 + leg * 3];
}
}在函数finalizeStep()中，向Cyberdog发送控制命令（这里的cyberdogCmd是_cyberdogInterface中的数据地址，由前文传入）
_legController->updateCommand(cyberdogCmd);重载updateCommand()函数，将控制命令传入cyberdogCmd
template<typename T>
void LegController<T>::updateCommand(CyberdogCmd *cyberdogCmd)
{
for(int leg = 0; leg < 4; leg++)
{
// tauFF 初始化关节力矩
Vec3<T> legTorque = commands[leg].tauFeedForward;
// forceFF 初始化足端力
Vec3<T> footForce = commands[leg].forceFeedForward;
// 足端力 f=kp*(pDes-p)+kd*(vDes-v) (直角坐标下pd)
footForce += commands[leg].kpCartesian * (commands[leg].pDes - datas[leg].p);
footForce += commands[leg].kdCartesian * (commands[leg].vDes - datas[leg].v);
// Torque 足端力转换成关节力矩tau = J^T*f
legTorque += datas[leg].J.transpose() * footForce;
// spi设置关节力矩
cyberdogCmd->tau_des[0 + leg * 3] = legTorque(0); // abad
cyberdogCmd->tau_des[1 + leg * 3] = legTorque(1); // hip
cyberdogCmd->tau_des[2 + leg * 3] = legTorque(2); // knee
// 关节空间的PD参数
cyberdogCmd->kd_des[0 + leg * 3] = commands[leg].kdJoint(0, 0);
cyberdogCmd->kd_des[1 + leg * 3] = commands[leg].kdJoint(1, 0);
cyberdogCmd->kd_des[2 + leg * 3] = commands[leg].kdJoint(2, 0);
cyberdogCmd->kp_des[0 + leg * 3] = commands[leg].kpJoint(0, 0);
cyberdogCmd->kp_des[1 + leg * 3] = commands[leg].kpJoint(1, 0);
cyberdogCmd->kp_des[2 + leg * 3] = commands[leg].kpJoint(2, 0);
// 期望关节位置
cyberdogCmd->q_des[0 + leg * 3] = commands[leg].qDes(0);
cyberdogCmd->q_des[1 + leg * 3] = commands[leg].qDes(1);
cyberdogCmd->q_des[2 + leg * 3] = commands[leg].qDes(2);
// 期望关节速度
cyberdogCmd->qd_des[0 + leg * 3] = commands[leg].qdDes(0);
cyberdogCmd->qd_des[1 + leg * 3] = commands[leg].qdDes(1);
cyberdogCmd->qd_des[2 + leg * 3] = commands[leg].qdDes(2);
// 计算关节力矩的估计值 tauEstimate = tau +kp*(qDes-q)+kd*(qdDes-qd)
// 等于足端受到的外界力产生的关节力加上关节模拟的关节刚度产生的关节力
datas[leg].tauEstimate =
legTorque +
commands[leg].kpJoint * (commands[leg].qDes - datas[leg].q) +
commands[leg].kdJoint * (commands[leg].qdDes - datas[leg].qd);
}
}在robot/src/HardwareBridge.cpp中，在void MiniCheetahHardwareBridge::run()函数中新建键盘读取任务
_keyboardThread = std::thread(&MiniCheetahHardwareBridge::run_keyboard, this);其中run_keyboard()函数内容为（由于是非阻塞读取键盘输入，需要引入头文件#include <termios.h>）
static bool kbhit()
{
termios term;
tcgetattr(0, &term);
termios term2 = term;
term2.c_lflag &= ~ICANON;
tcsetattr(0, TCSANOW, &term2);
int byteswaiting;
ioctl(0, FIONREAD, &byteswaiting);
tcsetattr(0, TCSANOW, &term);
return byteswaiting > 0;
}
extern rc_control_settings rc_control;
void HardwareBridge::run_keyboard()
{
int c;
// Check for keyboard input
while(true)
{
if(kbhit())
{
c = fgetc(stdin);
printf("0: switch mode to OFF\r\n");
printf("6: switch mode to RECOVERY_STAND\r\n");
printf("3: switch mode to BALANCE_STAND\r\n");
printf("4: switch mode to LOCOMOTION\r\n");
printf("q: height+0.1\r\n");
printf("z: height-0.1\r\n");
printf("w: roll+0.1\r\n");
printf("x: roll-0.1\r\n");
printf("e: pitch+0.1\r\n");
printf("c: pitch-0.1\r\n");
printf("r: yaw+0.1\r\n");
printf("v: yaw-0.1\r\n");
switch(c)
{
case '0':
printf("switch mode to OFF\r\n");
rc_control.mode = 0;
break;
case '6':
printf("switch mode to RECOVERY_STAND\r\n");
rc_control.mode = 12;
break;
case '3':
printf("switch mode to BALANCE_STAND\r\n");
rc_control.mode = 3;
break;
case '4':
printf("switch mode to LOCOMOTION\r\n");
rc_control.mode = 11;
break;
case 'q':
printf("height+0.1\r\n");
rc_control.height_variation += 0.1;
break;
case 'z':
printf("height-0.1\r\n");
rc_control.height_variation -= 0.1;
break;
case 'w':
printf("roll+0.1\r\n");
rc_control.rpy_des[0] += 0.1;
break;
case 'x':
printf("roll-0.1\r\n");
rc_control.rpy_des[0] -= 0.1;
break;
case 'e':
printf("pitch+0.1\r\n");
rc_control.rpy_des[1] += 0.1;
break;
case 'c':
printf("pitch-0.1\r\n");
rc_control.rpy_des[1] -= 0.1;
break;
case 'r':
printf("yaw+0.1\r\n");
rc_control.rpy_des[2] += 0.1;
break;
case 'v':
printf("yaw-0.1\r\n");
rc_control.rpy_des[2] -= 0.1;
break;
default:
break;
}
}
usleep(5000);
}
}注意，如需让机器人切换到平衡站立模式，键盘操作切换的顺序为0 -> 6 -> 3，不能直接从0切换到3，会触发报错。rc_control.mode的模式代码在robot/include/rt/rt_rc_interface.h文件中，课根据需要自行添加需要的模式
namespace RC_mode
{
constexpr int OFF = 0;
constexpr int QP_STAND = 3;
constexpr int BACKFLIP_PRE = 4;
constexpr int BACKFLIP = 5;
constexpr int VISION = 6;
constexpr int LOCOMOTION = 11;
constexpr int RECOVERY_STAND = 12;
// Experiment Mode
constexpr int TWO_LEG_STANCE_PRE = 20;
constexpr int TWO_LEG_STANCE = 21;
};在robot/src/HardwareBridge.cpp文件中，注释掉MiniCheetahHardwareBridge::run()函数中的遥控器任务，见上文，略
在robot/src/RobotRunner.cpp文件中的RobotRunner::run()函数中将use_rc设置为1
在user/MIT_Controller/FSM_States/ControlFSM.cpp文件中的ControlFSM<T>::runFSM()函数中，取消注释if(data.controlParameters->use_rc)`
由于Cyberdog运控板不能接遥控器，这里使用两种方法改变运动模式
在robot/src/HardwareBridge.cpp文件中，注释掉MiniCheetahHardwareBridge::run()函数中的遥控器任务
// _port = init_sbus(false); // Not Simulation
// PeriodicMemberFunction<HardwareBridge> sbusTask(
// &taskManager, .005, "rc_controller",
// &HardwareBridge::run_sbus, this);
// sbusTask.start();在robot/src/RobotRunner.cpp文件中的RobotRunner::run()函数中将use_rc设置为0，跳过Estop()模式
***略***
//使能LegController对象
_legController->setEnabled(true);
// 将use_rc设为0，跳过Estop()模式
controlParameters->use_rc = 0;
//当遥控器控制时的rc_control.mode为0时，将LegController对象的控制命令数据清零
if((rc_control.mode == 0) && controlParameters->use_rc)
{
if(count_ini % 1000 == 0) printf("ESTOP!\n");
***略***在user/MIT_Controller/FSM_States/ControlFSM.cpp文件中的ControlFSM<T>::runFSM()函数中，注释掉if(data.controlParameters->use_rc)，并令机器人模式自动切换：
***略***
// 为了安全操作，检查机器人状态
operatingMode = safetyPreCheck();
// 状态自动切换
if(iter < 1000)
{
data.controlParameters->control_mode = K_PASSIVE;
}
else if(iter < 2000)
{
data.controlParameters->control_mode = K_RECOVERY_STAND;
}
else if(iter < 3000)
{
data.controlParameters->control_mode = K_BALANCE_STAND;
}
// 是否使用遥控器
//if(data.controlParameters->use_rc)
//{
// // 设定控制模式
// int rc_mode = data._desiredStateCommand->rcCommand->mode;
//
// if(rc_mode == RC_mode::RECOVERY_STAND)
// {
// data.controlParameters->control_mode = K_RECOVERY_STAND;
//
// }
// else if(rc_mode == RC_mode::LOCOMOTION)
// {
// data.controlParameters->control_mode = K_LOCOMOTION;
//
// }
// else if(rc_mode == RC_mode::QP_STAND)
// {
// data.controlParameters->control_mode = K_BALANCE_STAND;
//
// }
// else if(rc_mode == RC_mode::VISION)
// {
// data.controlParameters->control_mode = K_VISION;
//
// }
// else if(rc_mode == RC_mode::BACKFLIP || rc_mode == RC_mode::BACKFLIP_PRE)
// {
// data.controlParameters->control_mode = K_BACKFLIP;
// }
// //data.controlParameters->control_mode = K_FRONTJUMP;
// //std::cout<< "control mode: "<<data.controlParameters->control_mode<<std::endl;
//}
// 如果操作模式是安全的，则运行机器人控制代码。下面为状态机
if(operatingMode != FSM_OperatingMode::ESTOP)
{
// 如果没有检测到过渡，则运行正常控制
if(operatingMode == FSM_OperatingMode::NORMAL)
{
***略***cmake ..
make -j16
sudo user/MIT_Controller/mit_ctrl m r f第一个参数为控制器，第二个参数代表mini cheetah，第三个参数代表robot实体机器人，第四个参数f代表file表示从文件中获取机器人参数
如果需要在Cyberdog上运行，需要交叉编译
需要注释掉third-party/JCQP/CholeskyDenseSolver.cpp和third-party/JCQP/CholeskySparseSolver.cpp中的#include <immintrin.h>
安装lcm(本地部署时需要)
$ git clone https://github.com/lcm-proj/lcm.git
$ cd lcm
$ mkdir build && cd build
$ cmake .. && make
$ sudo make install
安装docker(运控部署时需要)
按照链接所附步骤进行安装：https://docs.docker.com/engine/install/ubuntu/
$ sudo apt-get remove docker docker-engine docker.io containerd runc
$ sudo apt-get update
$ sudo apt-get install \
ca-certificates \
curl \
gnupg \
lsb-release
$ sudo mkdir -p /etc/apt/keyrings
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
$ echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
$ sudo apt-get update
$ sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin
$ sudo docker run hello-world
# 给docker设置root权限：
$ sudo groupadd docker
$ sudo usermod -aG docker $USER
$ sudo gpasswd -a $USER docker #将登陆用户加入到docker用户组中
注意，如果使用WSL2，无需在Linux里安装docker，只需在windows里安装并链接到Linux。
下载交叉编译所需docker镜像
$ wget https://cdn.cnbj2m.fds.api.mi-img.com/os-temp/loco/loco_arm64_20220118.tar
$ docker load --input loco_arm64_20220118.tar
$ docker images
将本地PC连接至铁蛋的USB download type-c 接口(位于中间)，等待出现”L4T-README” 弹窗
$ ping 192.168.55.100 #本地PC被分配的ip
$ ssh mi@192.168.55.1 #登录nx应用板 ,密码123
mi@lubuntu:~$ athena_version -v #核对当前版本>=1.0.0.94
$ ssh root@192.168.55.233 #登录运动控制板
修改配置开关，激活用户控制模式，运行用户自己的控制器：
$ ssh root@192.168.55.233 #登录运动控制板
root@TinaLinux:~# cd /robot
root@TinaLinux:~# ./initialize.sh #拷贝出厂代码到可读写的开发区（/mnt/UDISK/robot-software），切换到开发者模式，仅需执行一次
root@TinaLinux:~# vi /mnt/UDISK/robot-software/config/user_code_ctrl_mode.txt #切换mode:1(0:默认模式，1用户代码控制电机模式),重启机器人生效
运行在用户pc侧(linux)难以保证实时lcm通信，仅推荐编译验证和简单的位控测试
$ ping 192.168.55.233 #通过type c线连接Cyberdog的Download接口后，确认通信正常
$ ifconfig | grep -B 1 192.168.55.100 | grep "flags"| cut -d ':' -f1 #获取该ip对应网络设备，一般为usb0
$ sudo ifconfig usb0 multicast #usb0替换为上文获取的168.55.100对应网络设备,并配为多播
$ sudo route add -net 224.0.0.0 netmask 240.0.0.0 dev usb0 #添加路由表，usb0对应替换
下载sdk
$ cd cyberdog_motor_sdk/
$ mkdir build && cd build
$ cmake ..
$ make -j4
$ ./Example_MotorCtrl
注：lcm通信若不成功，无法正常激活电机控制模式，log提示：Motor control mode has not been activated successfully
因非实时系统，仅推荐编译验证和简单位控测试
scp -r ~/{code_path}/Cheetah-Software mi@192.168.55.1:/home/mi #sdk源码拷入应用板，密码123
ssh mi@192.168.55.1 #登录应用板
cd /home/mi/Cheetah-Software
mkdir build && cd build
cmake ..
make -j2
ping 192.168.55.233 #测试和运控板的通信
./mit_ctrl m r f
为了能使编译的文件可以直接在机器人上运行，需要在部署交叉编译工具链的docker镜像环境下编译，具体步骤如下：
# 如果使用小米官方的docker，需自行按照文章开头部署编译环境
docker run -it --rm --name cyberdog -v /{code_path}/Cheetah-Software:/work/build_farm/workspace/cyberdog cr.d.xiaomi.net/athena/athena_cheetah_arm64:2.0 /bin/bash
# 或者使用我的docker
docker run -it --rm --name cyberdog -v /{code_path}/Cheetah-Software:/work/build_farm/workspace/cyberdog cyberdog:1.0 /bin/bash
cd /work/build_farm/workspace/cyberdog/
mkdir onboard-build && cd onboard-build
cmake -DCMAKE_TOOLCHAIN_FILE=/usr/xcc/aarch64-openwrt-linux-gnu/Toolchain.cmake -DMINI_CHEETAH_BUILD=TRUE -DNO_SIM=TRUE ..
make -j16 #指定交叉编译工具链并编译
exit
编译成功后, 将生成的.so文件和可执行文件拷贝到运控
cd ~/{sdk_path}/onboard-build
ssh root@192.168.55.233 "mkdir /mnt/UDISK/cyberdog" #在运控板内创建文件夹
执行脚本将库与可执行文件拷贝到Cyberdog
../scripts/send_to_mini_cheetah.sh user/MIT_Controller/mit_ctrl
连接到运控板
ssh root@192.168.55.233
设置so库路径变量
export LD_LIBRARY_PATH=/mnt/UDISK/cyberdog/robot-software/build
或者也可以直接ssh设置
ssh root@192.168.55.233 "export LD_LIBRARY_PATH=/mnt/UDISK/cyberdog/robot-software/build"
运行控制器
cd /mnt/UDISK/cyberdogk/robot-software/build/
./mit_ctrl m r f
#通过“nohup /mnt/UDISK/cyberdog/robot-software/build/mit_ctrl m r f &”可后台运行，退出ssh连接不受影响
如何添加开机自启动:
配置/mnt/UDISK/manager_config/fork_para_conf_lists.json 进程管理文件(注意结尾逗号)后重启运控程序
例： "600003": {"fork_config":{"name": "Example_MotorCtrl", "object_path": "/cyberdog_motor_sdk/", "log_path": "", "paraValues": ["", "", ""] }}
注：手动关闭程序时，请先关闭用户程序Example_MotorCtrl，触发主程序(ctrl)超时保护趴下，再关闭或重启主程序。同时关闭主程序和用户程序，电机会因CAN总线超时位置锁定，再次启动易发生危险。
//bit0: warning flag, lost communication between user code and robot over 10[ms]. For safety, commanded tau and qd_des will be forced to divide by (over_time[ms]/10.0);
//bit1: error flag, lost communication between user code and robot over 500[ms]. Robot will enter high-damping mode by setting joint gains kp=0, kd=10, tau=0;
//bit2: warning flag, position command of any abaduction joint changing more than 8 degrees from its previous will be truncated;
//bit3: warning flag, position command of any hip joint changing more than 10 degrees from its previous will be truncated;
//bit4: warning flag, position command of any knee joint changing more than 12 degrees from its previous will be truncated;
注：为了避免通信超时导致危险，报err_flag: 0x02 communicate lost over 500ms后先排除故障,关闭Example_MotorCtrl例程进程,再重启运控程序或者直接重启运控板才能清除错误.
# 重启运控程序:
ssh root@192.168.55.233 "ps | grep -E 'mit_ctrl' | grep -v grep | awk '{print \$1}' | xargs kill -9" #需先于主进程暂停，避免急停
ssh root@192.168.55.233 "ps | grep -E 'manager|ctrl|imu_online' | grep -v grep | awk '{print \$1}' | xargs kill -9"
ssh root@192.168.55.233 "export LD_LIBRARY_PATH=/mnt/UDISK/robot-software/build;/mnt/UDISK/manager /mnt/UDISK/ >> /mnt/UDISK/manager_log/manager.log 2>&1 &"
# 重启运控板系统:
ssh root@192.168.55.233 "reboot"
# Added and Fixed :
The orientation of the robot in space has been corrected because when walking it swayed very much from side to side
Added a model view from the simulator with visualization