60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
#define _GNU_SOURCE
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#include <stdio.h>
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#include <unistd.h>
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#include <math.h>
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#include "lis3dh.h"
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#include "i2c.h"
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float mag(float x, float y, float z) {
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return sqrt( powf(x, 2) + powf(y, 2) + powf(z, 2) );
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}
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int main() {
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lis3dh_t lis;
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struct lis3dh_fifo_data fifo;
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lis.dev.init = i2c_init;
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lis.dev.read = i2c_read;
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lis.dev.write = i2c_write;
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lis.dev.sleep = usleep;
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lis.dev.deinit = i2c_deinit;
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/* write config after init() */
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if (lis3dh_init(&lis)) {
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puts("init ERR");
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}
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lis.cfg.mode = LIS3DH_MODE_HR;
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lis.cfg.range = LIS3DH_FS_2G;
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lis.cfg.rate = LIS3DH_ODR_100_HZ;
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lis.cfg.fifo.mode = LIS3DH_FIFO_MODE_STREAM;
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if (lis3dh_configure(&lis)) {
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puts("configure ERR");
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}
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for(int i=0; i<100; i++) {
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if (lis3dh_poll_fifo(&lis)) {
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puts("poll_fifo ERR");
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}
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if (lis3dh_read_fifo(&lis, &fifo)) {
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puts("read_fifo ERR");
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}
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for(int k=0; k<fifo.size; k++) {
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printf("x: %04.04f, y: %04.04f, z: %04.04f mag: %04.04f\n",
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fifo.x[k], fifo.y[k], fifo.z[k],
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mag(fifo.x[k], fifo.y[k], fifo.z[k]));
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}
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}
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if (lis3dh_deinit(&lis)) {
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puts("deinit ERR");
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}
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return 0;
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} |