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authorKeith Packard <keithp@keithp.com>2012-12-12 11:10:14 -0800
committerKeith Packard <keithp@keithp.com>2012-12-12 11:10:14 -0800
commit816c6b5d087694a9db9c34cc5ec7671a1487d9b9 (patch)
tree86f321f3fb4608b9e8e91f0bd0c89f3496672bd0 /src
parenta4a841828924ee37f5201d4ff0aec38459f2d802 (diff)
parenta4678cd848da994dc893b75790e4c9a86e54d895 (diff)
Merge branch 'micropeak-1.1'
Diffstat (limited to 'src')
-rw-r--r--src/micropeak/Makefile4
-rw-r--r--src/micropeak/ao_micropeak.c35
2 files changed, 35 insertions, 4 deletions
diff --git a/src/micropeak/Makefile b/src/micropeak/Makefile
index 8cf608bb..0c48ed66 100644
--- a/src/micropeak/Makefile
+++ b/src/micropeak/Makefile
@@ -11,6 +11,7 @@ DUDECPUTYPE=t85
#PROGRAMMER=stk500v2 -P usb
PROGRAMMER=usbtiny
LOADCMD=avrdude
+LOADSLOW=-i 32 -B 32
LOADARG=-p $(DUDECPUTYPE) -c $(PROGRAMMER) -e -U flash:w:
CC=avr-gcc
OBJCOPY=avr-objcopy
@@ -86,6 +87,9 @@ $(PROG).hex: $(PROG)
load: $(PROG).hex
$(LOADCMD) $(LOADARG)$(PROG).hex
+load-slow: $(PROG).hex
+ $(LOADCMD) $(LOADSLOW) $(LOADARG)$(PROG).hex
+
ao_product.h: ao-make-product.5c ../Version
$(call quiet,NICKLE,$<) $< -m altusmetrum.org -i $(IDPRODUCT) -p $(PRODUCT) -v $(VERSION) > $@
diff --git a/src/micropeak/ao_micropeak.c b/src/micropeak/ao_micropeak.c
index 10e1d0f9..525cfa42 100644
--- a/src/micropeak/ao_micropeak.c
+++ b/src/micropeak/ao_micropeak.c
@@ -65,18 +65,40 @@ ao_compute_height(void)
}
#if !HAS_EEPROM
+
+#define PA_GROUND_OFFSET 0
+#define PA_MIN_OFFSET 4
+#define N_SAMPLES_OFFSET 8
+#define STARTING_LOG_OFFSET 10
+#define MAX_LOG_OFFSET 512
+
+static uint16_t ao_log_offset = STARTING_LOG_OFFSET;
+
void
ao_save_flight(void)
{
- ao_eeprom_write(0, &pa_ground, sizeof (pa_ground));
- ao_eeprom_write(sizeof (pa_ground), &pa_min, sizeof (pa_min));
+ uint16_t n_samples = (ao_log_offset - STARTING_LOG_OFFSET) / sizeof (uint16_t);
+ ao_eeprom_write(PA_GROUND_OFFSET, &pa_ground, sizeof (pa_ground));
+ ao_eeprom_write(PA_MIN_OFFSET, &pa_min, sizeof (pa_min));
+ ao_eeprom_write(N_SAMPLES_OFFSET, &n_samples, sizeof (n_samples));
}
void
ao_restore_flight(void)
{
- ao_eeprom_read(0, &pa_ground, sizeof (pa_ground));
- ao_eeprom_read(sizeof (pa_ground), &pa_min, sizeof (pa_min));
+ ao_eeprom_read(PA_GROUND_OFFSET, &pa_ground, sizeof (pa_ground));
+ ao_eeprom_read(PA_MIN_OFFSET, &pa_min, sizeof (pa_min));
+}
+
+void
+ao_log_micro(void)
+{
+ uint16_t low_bits = pa;
+
+ if (ao_log_offset < MAX_LOG_OFFSET) {
+ ao_eeprom_write(ao_log_offset, &low_bits, sizeof (low_bits));
+ ao_log_offset += sizeof (low_bits);
+ }
}
#endif
@@ -110,6 +132,8 @@ main(void)
#endif
ao_restore_flight();
ao_compute_height();
+ /* Give the person a second to get their finger out of the way */
+ ao_delay(AO_MS_TO_TICKS(1000));
ao_report_altitude();
ao_spi_init();
@@ -178,6 +202,9 @@ main(void)
ao_led_off(AO_LED_REPORT);
#if HAS_EEPROM
ao_log_micro_data(AO_LOG_MICRO_DATA | pa);
+#else
+ if (sample_count & 1)
+ ao_log_micro();
#endif
pa_avg = pa_avg - (pa_avg >> FILTER_SHIFT) + pa;
if (pa_avg < pa_min)