![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
afdfdf
main.cpp
- Committer:
- mitch092
- Date:
- 2019-11-27
- Revision:
- 22:5e7356dc1d71
- Parent:
- 21:b0e9b4d19d4d
File content as of revision 22:5e7356dc1d71:
/** ****************************************************************************** * @file main.cpp * @author CLab * @version V1.0.0 * @date 2-December-2016 * @brief Simple Example application for using the X_NUCLEO_IKS01A1 * MEMS Inertial & Environmental Sensor Nucleo expansion board. ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes */ #include "mbed.h" #include "XNucleoIKS01A2.h" #include <iostream> #include <cmath> const float MAX_SPEED = 0.0003f; const float MIN_SPEED = 0.024095f; //const float MIN_SPEED = 0.5f; const float MAX_DEGREES = 10.0f; const float MIN_DEGREES = 0.0f; float clamp(float degrees) { if(degrees < MIN_DEGREES) return MIN_DEGREES; else if (degrees >= MAX_DEGREES) return MAX_DEGREES; else return degrees; } float degrees_to_period(float degrees) { return (((MAX_SPEED - MIN_SPEED)/(MAX_DEGREES)) * clamp(std::abs(degrees)) + MIN_SPEED); } struct Vec3 { float x, y, z; }; /* Instantiate the expansion board */ static XNucleoIKS01A2 *mems_expansion_board = XNucleoIKS01A2::instance(D14, D15, D4, D5); /* Retrieve the composing elements of the expansion board */ static LSM303AGRMagSensor *magnetometer = mems_expansion_board->magnetometer; static LSM6DSLSensor *acc_gyro = mems_expansion_board->acc_gyro; static LSM303AGRAccSensor *accelerometer = mems_expansion_board->accelerometer; PwmOut M1_step(D3); DigitalOut M1_dir(D2); PwmOut M2_step(D5); DigitalOut M2_dir(D4); Serial out(USBTX, USBRX); Vec3 get_accel() { Vec3 vec3; int32_t axes[3]; acc_gyro->get_x_axes(axes); vec3.x = axes[0]/1000.0f + 0.013f; vec3.y = axes[1]/1000.0f + 0.004f; vec3.z = axes[2]/1000.0f - 0.032f; return vec3; } void print_vec3(const char* str, const Vec3& vec3) { std::cout << str << vec3.x << " " << vec3.y << " " << vec3.z << "\r\n"; } float rad_to_deg(float radians) { return radians * 57.2957795131f; } int main() { /* Enable all sensors */ magnetometer->enable(); accelerometer->enable(); acc_gyro->enable_x(); acc_gyro->enable_g(); Vec3 vec3; M1_dir = 1; M2_dir = 0; M1_step = 0.5f; M2_step = 0.5f; float angle; float period; float test = 1.05f; for(;;) { vec3 = get_accel(); angle = rad_to_deg(atan(vec3.y / sqrtf(vec3.x*vec3.x + vec3.z*vec3.z))); period = (degrees_to_period(angle)); //Change direction. if(angle > 0) { M1_dir = 0; M2_dir = 1; } else { M1_dir = 1; M2_dir = 0; } //Control stepper motor. out.printf("%f %f %f\r\n", period, angle, degrees_to_period(MAX_DEGREES/test)); //if(angle < 2.0f || angle > -2.0f) M1_step.period(period); M2_step.period(period); //M1_step.period(0.0003); //M2_step.period(0.0003); //M1_step.period(degrees_to_period(MAX_DEGREES/test)); //M2_step.period(degrees_to_period(MAX_DEGREES/test)); } }