1 files changed, 107 insertions, 0 deletions
diff --git a/apps/accel/main.c b/apps/accel/main.c
new file mode 100644
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+++ b/apps/accel/main.c
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+/*
+ * Copyright (c) 2015, Intel Corporation
+ * All rights reserved.
+ *
+ * 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 the Intel Corporation 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 INTEL CORPORATION 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.
+ */
+
+#include <unistd.h>
+
+#if (__IPP_ENABLED__)
+#include "dsp.h"
+#endif
+
+#include "qm_interrupt.h"
+#include "qm_rtc.h"
+
+#include "bmc150/bmc150.h"
+
+#define ALARM (QM_RTC_ALARM_SECOND >> 3)
+
+#if (__IPP_ENABLED__)
+#define SAMPLES_SIZE 15
+
+static float32_t samples[SAMPLES_SIZE];
+
+static void print_axis_stats(int16_t value)
+{
+	static uint16_t index = 0;
+	static uint16_t count = 0;
+	float32_t mean, var, rms;
+
+	samples[index] = value;
+	index = (index + 1) % SAMPLES_SIZE;
+
+	count = count == SAMPLES_SIZE ? SAMPLES_SIZE : count + 1;
+
+	ippsq_rms_f32(samples, count, &rms);
+	ippsq_var_f32(samples, count, &var);
+	ippsq_mean_f32(samples, count, &mean);
+
+	QM_PRINTF("rms %d var %d mean %d\n", (int) rms, (int) var, (int) mean);
+}
+#endif
+
+static void print_accel_callback(void)
+{
+	bmc150_accel_t accel = {0};
+	qm_rc_t rc;
+
+    (void) rc;
+
+	rc = bmc150_read_accel(&accel);
+	QM_PRINTF("rc %d x %d y %d z %d\n", rc, accel.x, accel.y, accel.z);
+
+#if (__IPP_ENABLED__)
+	print_axis_stats(accel.z);
+#endif
+
+	qm_rtc_set_alarm(QM_RTC_0, (QM_RTC[QM_RTC_0].rtc_ccvr + ALARM));
+}
+
+int main(void)
+{
+	qm_rtc_config_t rtc;
+
+	QM_PUTS("Accelerometer example app\n");
+
+	rtc.init_val = 0;
+	rtc.alarm_en = true;
+	rtc.alarm_val = ALARM;
+	rtc.callback = print_accel_callback;
+
+	qm_irq_request(QM_IRQ_RTC_0, qm_rtc_isr_0);
+
+	clk_periph_enable(CLK_PERIPH_RTC_REGISTER | CLK_PERIPH_CLK);
+
+	bmc150_init(BMC150_J14_POS_0);
+
+	bmc150_set_accel_mode(BMC150_MODE_2G);
+	bmc150_set_bandwidth(BMC150_BANDWIDTH_64MS);
+
+	qm_rtc_set_config(QM_RTC_0, &rtc);
+
+	return 0;
+}