[工业类传感器] [X-NUCLEO-IKS01A2测评] 用Nucleo-STM32L476和MEMS board X-NUCLEO-IK...编程

北方 2017-9-29 10:21 楼主

1、从零开始创建一个项目, 选择import，但是因为IKS01A2比较新，只有IKS01A1的库，其实是可以用来测试的。只要对比其中的区别就好，因为识别i2c设备是通过I2C线路的，其实主板并不知道是什么设备。

2、创建后的文件结构如下，

3、文件代码如下，

/* Includes */
#include "mbed.h"
#include "x_nucleo_iks01a1.h"
/* Instantiate the expansion board */
static X_NUCLEO_IKS01A1 *mems_expansion_board = X_NUCLEO_IKS01A1::Instance(D14, D15);
/* Retrieve the composing elements of the expansion board */
static GyroSensor *gyroscope = mems_expansion_board->GetGyroscope();
static MotionSensor *accelerometer = mems_expansion_board->GetAccelerometer();
static MagneticSensor *magnetometer = mems_expansion_board->magnetometer;
static HumiditySensor *humidity_sensor = mems_expansion_board->ht_sensor;
static PressureSensor *pressure_sensor = mems_expansion_board->pt_sensor;
static TempSensor *temp_sensor1 = mems_expansion_board->ht_sensor;
static TempSensor *temp_sensor2 = mems_expansion_board->pt_sensor;
/* Helper function for printing floats & doubles */
static char *printDouble(char* str, double v, int decimalDigits=2)
{
int i = 1;
int intPart, fractPart;
int len;
char *ptr;
/* prepare decimal digits multiplicator */
for (;decimalDigits!=0; i*=10, decimalDigits--);
/* calculate integer & fractinal parts */
intPart = (int)v;
fractPart = (int)((v-(double)(int)v)*i);
/* fill in integer part */
sprintf(str, "%i.", intPart);
/* prepare fill in of fractional part */
len = strlen(str);
ptr = &str[len];
/* fill in leading fractional zeros */
for (i/=10;i>1; i/=10, ptr++) {
if(fractPart >= i) break;
*ptr = '0';
}
/* fill in (rest of) fractional part */
sprintf(ptr, "%i", fractPart);
return str;
}
/* Simple main function */
int main() {
uint8_t id;
float value1, value2;
char buffer1[32], buffer2[32];
int32_t axes[3];
printf("\r\n--- Starting new run ---\r\n");
humidity_sensor->read_id(&id);
printf("HTS221 humidity & temperature = 0x%X\r\n", id);
pressure_sensor->read_id(&id);
printf("LPS25H pressure & temperature = 0x%X\r\n", id);
magnetometer->read_id(&id);
printf("LIS3MDL magnetometer = 0x%X\r\n", id);
gyroscope->read_id(&id);
printf("LSM6DS0 accelerometer & gyroscope = 0x%X\r\n", id);
wait(3);
while(1) {
printf("\r\n");
temp_sensor1->get_temperature(&value1);
humidity_sensor->get_humidity(&value2);
printf("HTS221: [temp] %7s°C, [hum] %s%%\r\n", printDouble(buffer1, value1), printDouble(buffer2, value2));
temp_sensor2->get_fahrenheit(&value1);
pressure_sensor->get_pressure(&value2);
printf("LPS25H: [temp] %7s°F, [press] %smbar\r\n", printDouble(buffer1, value1), printDouble(buffer2, value2));
printf("---\r\n");
magnetometer->get_m_axes(axes);
printf("LIS3MDL [mag/mgauss]: %7ld, %7ld, %7ld\r\n", axes[0], axes[1], axes[2]);
accelerometer->get_x_axes(axes);
printf("LSM6DS0 [acc/mg]: %7ld, %7ld, %7ld\r\n", axes[0], axes[1], axes[2]);
gyroscope->get_g_axes(axes);
printf("LSM6DS0 [gyro/mdps]: %7ld, %7ld, %7ld\r\n", axes[0], axes[1], axes[2]);
wait(1.5);
}
}