--- /dev/null
+/*
+ * Copyright © 2012 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <ao.h>
+#include <ao_micropeak.h>
+#include <ao_ms5607.h>
+#include <ao_async.h>
+#include <ao_log_micro.h>
+
+static struct ao_ms5607_value value;
+
+alt_t ground_alt, max_alt;
+alt_t ao_max_height;
+
+void
+ao_pa_get(void)
+{
+ ao_ms5607_sample(&ao_ms5607_current);
+ ao_ms5607_convert(&ao_ms5607_current, &value);
+ pa = value.pres;
+}
+static void
+ao_pips(void)
+{
+ uint8_t i;
+ for (i = 0; i < 10; i++) {
+ ao_led_toggle(AO_LED_REPORT);
+ ao_delay(AO_MS_TO_TICKS(80));
+ }
+ ao_delay(AO_MS_TO_TICKS(200));
+}
+
+#define POLY 0x8408
+
+static uint16_t
+ao_log_micro_crc(uint16_t crc, uint8_t byte)
+{
+ uint8_t i;
+
+ for (i = 0; i < 8; i++) {
+ if ((crc & 0x0001) ^ (byte & 0x0001))
+ crc = (crc >> 1) ^ POLY;
+ else
+ crc = crc >> 1;
+ byte >>= 1;
+ }
+ return crc;
+}
+
+struct header {
+ uint32_t pa_ground_offset;
+ uint32_t pa_min_offset;
+ N_SAMPLES_TYPE nsamples;
+};
+
+static const struct header head = {
+ .pa_ground_offset = 0xfffefdfc,
+ .pa_min_offset = 0xfbfaf9f8,
+ .nsamples = 64
+};
+
+static void
+ao_test_micro_dump(void)
+{
+ N_SAMPLES_TYPE n_samples;
+ uint16_t nbytes;
+ uint8_t byte;
+ uint16_t b;
+ uint16_t crc = 0xffff;
+
+ n_samples = head.nsamples;
+ nbytes = STARTING_LOG_OFFSET + sizeof (uint16_t) * n_samples;
+
+ /*
+ * Rewrite n_samples so that it includes the log ID value with
+ * 32-bit n_samples split into two chunks
+ */
+ if (sizeof (n_samples) > 2) {
+ N_SAMPLES_TYPE n_samples_low;
+ N_SAMPLES_TYPE n_samples_high;
+ n_samples_low = n_samples & ((1 << AO_LOG_ID_SHIFT) - 1);
+ n_samples_high = (n_samples - n_samples_low) << AO_LOG_ID_WIDTH;
+ n_samples = n_samples_low | n_samples_high;
+ }
+#if AO_LOG_ID
+ n_samples |= AO_LOG_ID << AO_LOG_ID_SHIFT;
+#endif
+ ao_async_start();
+ ao_async_byte('M');
+ ao_async_byte('P');
+ for (b = 0; b < nbytes; b++) {
+ if ((b & 0xf) == 0)
+ ao_log_newline();
+ if (b < sizeof (head))
+ byte = ((uint8_t *) &head)[b];
+ else
+ byte = b;
+#if AO_LOG_ID
+ if (N_SAMPLES_OFFSET <= b && b < (N_SAMPLES_OFFSET + sizeof(n_samples))) {
+ byte = n_samples >> ((b - N_SAMPLES_OFFSET) << 3);
+ }
+#endif
+ ao_log_hex(byte);
+ crc = ao_log_micro_crc(crc, byte);
+ }
+ ao_log_newline();
+ crc = ~crc;
+ ao_log_hex(crc >> 8);
+ ao_log_hex(crc);
+ ao_log_newline();
+ ao_async_stop();
+}
+
+int
+main(void)
+{
+ ao_led_init();
+ ao_timer_init();
+
+ /* Init external hardware */
+ ao_spi_init();
+ ao_ms5607_init();
+ ao_ms5607_setup();
+
+ for (;;)
+ {
+ ao_delay(AO_MS_TO_TICKS(1000));
+
+ ao_pips();
+ ao_test_micro_dump();
+ }
+}