Merge branch 'aprs' into 'master'

5 files changed, 45 insertions, 13 deletions

diff --git a/src/core/ao_convert_pa.c b/src/core/ao_convert_pa.c
index 55fe6e7d..fe6e0ef6 100644
--- a/src/core/ao_convert_pa.c
+++ b/src/core/ao_convert_pa.c
@@ -43,13 +43,13 @@ ao_pa_to_altitude(int32_t pa)
 
 	if (pa < 0)
 		pa = 0;
-	if (pa > 120000)
-		pa = 120000;
+	if (pa > 120000L)
+		pa = 120000L;
 	o = pa >> ALT_SHIFT;
 	part = pa & ALT_MASK;
 
-	low = (alt_t) FETCH_ALT(o) * (ALT_SCALE - part);
-	high = (alt_t) FETCH_ALT(o+1) * part + (ALT_SCALE >> 1);
+	low = (int32_t) FETCH_ALT(o) * (ALT_SCALE - part);
+	high = (int32_t) FETCH_ALT(o+1) * part + (ALT_SCALE >> 1);
 	return (low + high) >> ALT_SHIFT;
 }
 
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)
diff --git a/src/micropeak/ao_pins.h b/src/micropeak/ao_pins.h
index 257b8694..63e9cb1b 100644
--- a/src/micropeak/ao_pins.h
+++ b/src/micropeak/ao_pins.h
@@ -57,8 +57,9 @@
 #define I2C_PIN_SDA		PINB0
 
 #define AO_CONST_ATTRIB		PROGMEM
+typedef int32_t alt_t;
 #define FETCH_ALT(o)		((alt_t) pgm_read_dword(&altitude_table[o]))
 
-#define AO_ALT_VALUE(x)		((x) * 10)
+#define AO_ALT_VALUE(x)		((x) * (alt_t) 10)
 
 #endif /* _AO_PINS_H_ */
diff --git a/src/micropeak/ao_report_tiny.c b/src/micropeak/ao_report_tiny.c
index 109af1ed..0e8e287f 100644
--- a/src/micropeak/ao_report_tiny.c
+++ b/src/micropeak/ao_report_tiny.c
@@ -24,7 +24,7 @@ static void
 ao_report_digit(uint8_t digit) __reentrant
 {
 	if (!digit) {
-		mid(AO_MS_TO_TICKS(600));
+		mid(AO_MS_TO_TICKS(1000));
 		pause(AO_MS_TO_TICKS(300));
 	} else {
 		while (digit--) {
@@ -32,14 +32,14 @@ ao_report_digit(uint8_t digit) __reentrant
 			pause(AO_MS_TO_TICKS(300));
 		}
 	}
-	pause(AO_MS_TO_TICKS(600));
+	pause(AO_MS_TO_TICKS(1000));
 }
 
 void
 ao_report_altitude(void)
 {
-	__pdata int16_t	agl = ao_max_height;
-	__xdata uint8_t	digits[10];
+	__pdata alt_t	agl = ao_max_height;
+	static __xdata uint8_t	digits[11];
 	__pdata uint8_t ndigits, i;
 
 	if (agl < 0)