// Disp a specific screen
void DisplayManager::display() {
lcd.clear(); lcd.setCursor(0, 0);
if (display_mode == -2) {
display_menu();
return;
}
switch (display_mode) {
case DATETIME:
display_datetime();
break;
case POSITION:
display_position();
break;
case ALTITUDE:
display_altitude();
break;
case BATTERYM:
display_battery();
break;
default:
lcd.print(satellites);
lcd.setCursor(0, 1);
lcd.print(iterations);
return;
}
}
void update(enum sys_message msg)
{
read_altitude();
display_altitude(sAlt.altitude, 0);
display_climb(sAlt.climb, ALT_SCREEN_CLIMB);
display_altitude(sAlt.minAltitude, ALT_SCREEN_MIN);
display_altitude(sAlt.maxAltitude, ALT_SCREEN_MAX);
display_altitude(sAlt.accuClimbDown, ALT_SCREEN_ACC_N);
display_altitude(sAlt.accuClimbUp, ALT_SCREEN_ACC_P);
if((accelerometer == 1) &&(submenuState == 0)){
display_clear(0 ,2);
display_chars(0, LCD_SEG_L2_4_0, "ACCEL", SEG_SET);
}
time_callback(SYS_MSG_RTC_HOUR | SYS_MSG_RTC_MINUTE);
}
void display_altitude(u8 line, u8 update)
{
u8 * str;
#ifndef CONFIG_METRIC_ONLY
s16 ft;
#endif
// redraw whole screen
if (update == DISPLAY_LINE_UPDATE_FULL)
{
// Enable pressure measurement
sAlt.state = MENU_ITEM_VISIBLE;
// Start measurement
start_altitude_measurement();
#ifdef CONFIG_ALTI_ACCUMULATOR
display_chars(LCD_SEG_L1_3_0, (u8*)"ALT ", SEG_ON);
#endif
#ifdef CONFIG_METRIC_ONLY
display_symbol(LCD_UNIT_L1_M, SEG_ON);
#else
if (sys.flag.use_metric_units)
{
// Display "m" symbol
display_symbol(LCD_UNIT_L1_M, SEG_ON);
}
else
{
// Display "ft" symbol
display_symbol(LCD_UNIT_L1_FT, SEG_ON);
}
#endif
// Display altitude
display_altitude(LINE1, DISPLAY_LINE_UPDATE_PARTIAL);
}
else if (update == DISPLAY_LINE_UPDATE_PARTIAL)
{
// Update display only while measurement is active
if (sAlt.timeout > 0)
{
#ifndef CONFIG_METRIC_ONLY
if (sys.flag.use_metric_units)
{
#endif
// Display altitude in xxxx m format, allow 3 leading blank digits
if (sAlt.altitude >= 0)
{
#ifdef CONFIG_ALTI_ACCUMULATOR
str = _itoa(sAlt.altitude, 5, 4);
#else
str = _itoa(sAlt.altitude, 4, 3);
#endif
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
#ifdef CONFIG_ALTI_ACCUMULATOR
str = _itoa(sAlt.altitude*(-1), 4, 3);
#else
str = _itoa(sAlt.altitude*(-1), 5, 4);
#endif
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
#ifndef CONFIG_METRIC_ONLY
}
else
{
// Convert from meters to feet
ft = convert_m_to_ft(sAlt.altitude);
#ifndef CONFIG_ALTI_ACCUMULATOR
// Limit to 9999ft (3047m)
if (ft > 9999) ft = 9999;
#endif
// Display altitude in xxxx ft format, allow 3 leading blank digits
if (ft >= 0)
{
#ifdef CONFIG_ALTI_ACCUMULATOR
str = _itoa(ft, 4, 3);
#else
str = _itoa(ft, 5, 4);
#endif
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
#ifdef CONFIG_ALTI_ACCUMULATOR
str = _itoa(ft*(-1), 4, 3);
#else
str = _itoa(ft*(-1), 5, 4);
#endif
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
}
#endif
#ifdef CONFIG_ALTI_ACCUMULATOR
// display altitude on bottom line (5 digits)
clear_line(LINE2);
display_chars(LCD_SEG_L2_4_0, str, SEG_ON);
#else
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
#endif
}
}
else if (update == DISPLAY_LINE_CLEAR)
{
// Disable pressure measurement
sAlt.state = MENU_ITEM_NOT_VISIBLE;
// Stop measurement
stop_altitude_measurement();
// Clean up function-specific segments before leaving function
#ifdef CONFIG_ALTI_ACCUMULATOR
// clear off the altitude display from the second line
clear_line(LINE2);
// should really try to get the date displayed here again too
#endif
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
}
// *************************************************************************************************
// @fn display_altitude
// @brief Display routine. Supports display in meters and feet.
// @param u8 line LINE1
// u8 update DISPLAY_LINE_UPDATE_FULL, DISPLAY_LINE_UPDATE_PARTIAL, DISPLAY_LINE_CLEAR
// @return none
// *************************************************************************************************
void display_altitude(u8 line, u8 update)
{
u8 *str;
s16 ft;
// Start measurement
start_altitude_measurement();
// redraw whole screen
if (update == DISPLAY_LINE_UPDATE_FULL)
{
if (sys.flag.use_metric_units)
{
// Display "m" symbol
display_symbol(LCD_UNIT_L1_M, SEG_ON);
}
else
{
// Display "ft" symbol
display_symbol(LCD_UNIT_L1_FT, SEG_ON);
}
// Display altitude
display_altitude(LINE1, DISPLAY_LINE_UPDATE_PARTIAL);
}
else if (update == DISPLAY_LINE_UPDATE_PARTIAL)
{
if (sys.flag.use_metric_units)
{
// Display altitude in xxxx m format, allow 3 leading blank digits
if (sAlt.altitude >= 0)
{
str = int_to_array(sAlt.altitude, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
str = int_to_array(sAlt.altitude * (-1), 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
}
else
{
// Convert from meters to feet
ft = convert_m_to_ft(sAlt.altitude);
// Limit to 9999ft (3047m)
if (ft > 9999)
ft = 9999;
// Display altitude in xxxx ft format, allow 3 leading blank digits
if (ft >= 0)
{
str = int_to_array(ft, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
str = int_to_array(ft * (-1), 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
}
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
}
else if (update == DISPLAY_LINE_CLEAR)
{
// Stop measurement
stop_altitude_measurement();
// Clean up function-specific segments before leaving function
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
}
// *************************************************************************************************
// @fn test_mode
// @brief Manual test mode. Activated by holding buttons STAR and UP simultaneously.
// Cancelled by any other button press.
// @param none
// @return none
// *************************************************************************************************
void test_mode(void)
{
u8 test_step, start_next_test;
u8 * str;
u8 i;
// Disable timer - no need for a clock tick
Timer0_Stop();
// Disable LCD charge pump while in standby mode
// This reduces current consumption by ca. 5?A to ca. 10?A
LCDBVCTL = 0;
// Show welcome screen
display_chars(LCD_SEG_L1_3_0, (u8*)"0430", SEG_ON);
display_chars(LCD_SEG_L2_4_0, (u8*)"CC430", SEG_ON);
display_symbol(LCD_SEG_L1_COL, SEG_ON);
display_symbol(LCD_ICON_HEART, SEG_ON);
display_symbol(LCD_ICON_STOPWATCH, SEG_ON);
display_symbol(LCD_ICON_RECORD, SEG_ON);
display_symbol(LCD_ICON_ALARM, SEG_ON);
display_symbol(LCD_ICON_BEEPER1, SEG_ON);
display_symbol(LCD_ICON_BEEPER2, SEG_ON);
display_symbol(LCD_ICON_BEEPER3, SEG_ON);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
display_symbol(LCD_SYMB_AM, SEG_ON);
// Hold watchdog
WDTCTL = WDTPW + WDTHOLD;
// Wait for button press
_BIS_SR(LPM3_bits + GIE);
__no_operation();
// Clear display
display_all_off();
#ifdef USE_LCD_CHARGE_PUMP
// Charge pump voltage generated internally, internal bias (V2-V4) generation
// This ensures that the contrast and LCD control is constant for the whole battery lifetime
LCDBVCTL = LCDCPEN | VLCD_2_72;
#endif
// Renenable timer
Timer0_Start();
// Debounce button press
Timer0_A4_Delay(CONV_MS_TO_TICKS(100));
while(1)
{
// Check button event
if (BUTTON_STAR_IS_PRESSED && BUTTON_UP_IS_PRESSED)
{
// Start with test #0
test_step = 0;
start_next_test = 1;
while(1)
{
if (start_next_test)
{
// Clean up previous test display
display_all_off();
start_next_test = 0;
switch (test_step)
{
case 0: // All LCD segments on
display_all_on();
// Wait until buttons are off
while (BUTTON_STAR_IS_PRESSED && BUTTON_UP_IS_PRESSED);
break;
case 1: // Altitude measurement
#ifdef CONFIG_ALTITUDE
display_altitude(LINE1, DISPLAY_LINE_UPDATE_FULL);
for (i=0; i<2; i++)
{
while((PS_INT_IN & PS_INT_PIN) == 0);
do_altitude_measurement(FILTER_OFF);
display_altitude(LINE1, DISPLAY_LINE_UPDATE_PARTIAL);
}
stop_altitude_measurement();
#endif
break;
case 2: // Temperature measurement
display_temperature(LINE1, DISPLAY_LINE_UPDATE_FULL);
for (i=0; i<4; i++)
{
Timer0_A4_Delay(CONV_MS_TO_TICKS(250));
temperature_measurement(FILTER_OFF);
display_temperature(LINE1, DISPLAY_LINE_UPDATE_PARTIAL);
}
break;
case 3: // Acceleration measurement
as_start();
for (i=0; i<4; i++)
{
Timer0_A4_Delay(CONV_MS_TO_TICKS(250));
as_get_data(sAccel.xyz);
str = itoa( sAccel.xyz[0], 3, 0);
display_chars(LCD_SEG_L1_2_0, str, SEG_ON);
str = itoa( sAccel.xyz[2], 3, 0);
display_chars(LCD_SEG_L2_2_0, str, SEG_ON);
}
as_stop();
break;
//pfs
#ifndef ELIMINATE_BLUEROBIN
case 4: // BlueRobin test
button.flag.up = 1;
sx_bluerobin(LINE1);
Timer0_A4_Delay(CONV_MS_TO_TICKS(100));
get_bluerobin_data();
display_heartrate(LINE1, DISPLAY_LINE_UPDATE_FULL);
stop_bluerobin();
break;
#endif
}
// Debounce button
Timer0_A4_Delay(CONV_MS_TO_TICKS(200));
}
// Check button event
if (BUTTON_STAR_IS_PRESSED)
{
test_step = 1;
start_next_test = 1;
}
else if (BUTTON_NUM_IS_PRESSED)
{
test_step = 2;
start_next_test = 1;
}
else if (BUTTON_UP_IS_PRESSED)
{
test_step = 3;
start_next_test = 1;
}
else if (BUTTON_DOWN_IS_PRESSED)
{
test_step = 4;
start_next_test = 1;
}
else if (BUTTON_BACKLIGHT_IS_PRESSED)
{
// Wait until button has been released (avoid restart)
while (BUTTON_BACKLIGHT_IS_PRESSED);
// Disable LCD and LCD charge pump
LCDBCTL0 &= ~BIT0;
LCDBVCTL = 0;
// Debounce button press
Timer0_A4_Delay(CONV_MS_TO_TICKS(500));
// Disable timer - no need for a clock tick
Timer0_Stop();
// Hold watchdog
WDTCTL = WDTPW + WDTHOLD;
// Sleep until button is pressed (ca. 4?A current consumption)
_BIS_SR(LPM4_bits + GIE);
__no_operation();
// Force watchdog reset for a clean restart
WDTCTL = 1;
}
#ifdef USE_WATCHDOG
// Service watchdog
WDTCTL = WDTPW + WDTIS__512K + WDTSSEL__ACLK + WDTCNTCL;
#endif
// To LPM3
_BIS_SR(LPM3_bits + GIE);
__no_operation();
}
}
else
{
// Debounce button
Timer0_A4_Delay(CONV_MS_TO_TICKS(100));
button.all_flags = 0;
break;
}
}
}
void edit_base_set(uint8_t pos, int8_t step)
{
helpers_loop_s16(&baseCalib[pos], limit_low, limit_high, step);
display_altitude(baseCalib[pos], 0);
}
void edit_base_sel(uint8_t pos)
{
display_altitude(baseCalib[pos], 0);
display_chars(0, LCD_SEG_L1_3_0, NULL, BLINK_ON);
display_chars(0, LCD_SEG_L2_5_0, pre_str[pos], SEG_SET);
}
// *************************************************************************************************
// @fn display_altitude
// @brief Display routine. Supports display in meters and feet.
// @param u8 line LINE1
// u8 update DISPLAY_LINE_UPDATE_FULL,
// DISPLAY_LINE_UPDATE_PARTIAL, DISPLAY_LINE_CLEAR
// @return none
// *************************************************************************************************
void display_altitude(u8 line, u8 update)
{
u8 *str;
s16 ft;
// redraw whole screen
if (update == DISPLAY_LINE_UPDATE_FULL)
{
// Enable pressure measurement
sAlt.state = MENU_ITEM_VISIBLE;
// Start measurement
start_altitude_measurement();
// Display altitude
display_altitude(LINE1, DISPLAY_LINE_UPDATE_PARTIAL);
}
else if (update == DISPLAY_LINE_UPDATE_PARTIAL)
{
// Update display only while measurement is active
if (sAlt.timeout > 0)
{
if (sAlt.display == DISPLAY_DEFAULT_VIEW)
{
display_symbol(LCD_UNIT_L1_PER_H, SEG_OFF);
display_symbol(LCD_SYMB_AM, SEG_OFF);
if (sys.flag.use_metric_units)
{
// Display "m" symbol
display_symbol(LCD_UNIT_L1_M, SEG_ON);
}
else
{
// Display "ft" symbol
display_symbol(LCD_UNIT_L1_FT, SEG_ON);
}
if (sys.flag.use_metric_units)
{
// Display altitude in xxxx m format, allow 3 leading blank digits
if (sAlt.altitude >= 0)
{
str = int_to_array(sAlt.altitude, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
str = int_to_array((-1)*sAlt.altitude, 4, 3);
//const u8 neg_txt[3] ="NEG";
//str = (u8 *)neg_txt;
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
}
else
{
// Convert from meters to feet
ft = convert_m_to_ft(sAlt.altitude);
// Limit to 9999ft (3047m)
if (ft > 9999)
ft = 9999;
// Display altitude in xxxx ft format, allow 3 leading blank digits
if (ft >= 0)
{
str = int_to_array(ft, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
str = int_to_array(ft * (-1), 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
}
display_symbol(LCD_ICON_RECORD, SEG_OFF_BLINK_OFF);
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
}
else if (sAlt.display == DISPLAY_ALTERNATIVE_VIEW)
{
// Display Pressure in hPa
u16 PressureToDisp = (u16) (((float)sAlt.pressure + 100.00 * (float) sAlt.pressure_offset) / 100.00 + 0.5);
str = int_to_array(PressureToDisp, 4, 3);
display_symbol(LCD_SYMB_AM, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_UNIT_L1_PER_H, SEG_ON_BLINK_OFF);
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
}
else if (sAlt.display == DISPLAY_ALTERNATIVE_VIEW1)
{
// Display Pressure in mmHg
u16 PressureToDisp = (u16) (3.0 * ((float)sAlt.pressure + 100.00 * (float)sAlt.pressure_offset) / 400.00 + 0.5);
str = int_to_array(PressureToDisp, 4, 3);
// str = int_to_array(sAlt.pressure_delta, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_UNIT_L1_PER_H, SEG_OFF);
display_symbol(LCD_ICON_RECORD, SEG_OFF_BLINK_OFF);
display_symbol(LCD_SYMB_AM, SEG_ON);
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
}
else if (sAlt.display == DISPLAY_ALTERNATIVE_VIEW2)
{
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
display_symbol(LCD_SYMB_AM, SEG_OFF);
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_UNIT_L1_PER_H, SEG_OFF);
display_symbol(LCD_ICON_RECORD, SEG_ON_BLINK_ON);
s16 dp = sAlt.pressure_delta;
if (dp > 250)
{
// unstable high pressure
display_chars(LCD_SEG_L1_3_0, (u8 *) "UN H", SEG_ON);
}
else if ((dp >= 50) && (dp <= 250))
{
// stable good weather
display_chars(LCD_SEG_L1_3_0, (u8 *) " SUN", SEG_ON);
}
else if ((dp >= -50) && (dp < 50))
{
// stable
display_chars(LCD_SEG_L1_3_0, (u8 *) "STAB", SEG_ON);
}
else if ((dp > -250) && (dp < -50))
{
// stable rainy
display_chars(LCD_SEG_L1_3_0, (u8 *) "RAIN", SEG_ON);
}
else
{
// unstable low
display_chars(LCD_SEG_L1_3_0, (u8 *) "UN L", SEG_ON);
}
/*
u32 Temp = (u32)((float) sAlt.pressure_sum / ((float) sAlt.pressure_counter * 100.0) + 0.5);
str = int_to_array(Temp, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
display_symbol(LCD_SYMB_AM, SEG_OFF);
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_UNIT_L1_PER_H, SEG_ON_BLINK_ON);
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
*/
}
else
{
if (sAlt.pressure_delta >= 0)
{
str = int_to_array(sAlt.pressure_delta, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
str = int_to_array(sAlt.pressure_delta * (-1), 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
display_symbol(LCD_ICON_RECORD, SEG_OFF_BLINK_OFF);
display_symbol(LCD_SYMB_AM, SEG_OFF);
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_UNIT_L1_PER_H, SEG_ON);
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
}
}
}
else if (update == DISPLAY_LINE_CLEAR)
{
// Disable pressure measurement
sAlt.state = MENU_ITEM_NOT_VISIBLE;
// Stop measurement
stop_altitude_measurement();
// Clean up function-specific segments before leaving function
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
display_symbol(LCD_UNIT_L1_PER_H, SEG_OFF_BLINK_OFF);
display_symbol(LCD_SYMB_AM, SEG_OFF);
display_symbol(LCD_ICON_RECORD, SEG_OFF_BLINK_OFF);
sAlt.display = DISPLAY_DEFAULT_VIEW;
}
}
// *************************************************************************************************
// @fn display_altitude
// @brief Display routine. Supports display in meters and feet.
// @param u8 line LINE1
// u8 update DISPLAY_LINE_UPDATE_FULL, DISPLAY_LINE_UPDATE_PARTIAL, DISPLAY_LINE_CLEAR
// @return none
// *************************************************************************************************
void display_altitude(u8 line, u8 update)
{
u8 * str;
s16 ft;
// redraw whole screen
if (update == DISPLAY_LINE_UPDATE_FULL)
{
// Enable pressure measurement
sAlt.state = MENU_ITEM_VISIBLE;
// Start measurement
start_altitude_measurement();
// Display altitude
display_altitude(LINE1, DISPLAY_LINE_UPDATE_PARTIAL);
}
else if (update == DISPLAY_LINE_UPDATE_PARTIAL)
{
// Update display only while measurement is active
if (sAlt.timeout > 0)
{
// Altitude view
if (PressDisplay == DISPLAY_DEFAULT_VIEW)
{
display_symbol(LCD_SEG_L1_DP1, SEG_OFF);
if (sys.flag.use_metric_units)
{
// Display "m" symbol
display_symbol(LCD_UNIT_L1_M, SEG_ON);
// Display altitude in xxxx m format, allow 3 leading blank digits
if (sAlt.altitude >= 0)
{
str = itoa(sAlt.altitude, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
str = itoa(sAlt.altitude*(-1), 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
}
else
{
// Display "ft" symbol
display_symbol(LCD_UNIT_L1_FT, SEG_ON);
// Convert from meters to feet
ft = convert_m_to_ft(sAlt.altitude);
// Limit to 9999ft (3047m)
if (ft > 9999) ft = 9999;
// Display altitude in xxxx ft format, allow 3 leading blank digits
if (ft >= 0)
{
str = itoa(ft, 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_ON);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
else
{
str = itoa(ft*(-1), 4, 3);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_ON);
}
}
}
// Pressure view, unit: milliBar = hectoPascal
else if (PressDisplay == DISPLAY_ALTERNATIVE_VIEW)
{
display_symbol(LCD_SEG_L1_DP1, SEG_OFF);
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
str = itoa(AmbientPressure, 4, 3);
}
// Pressure view, unit: PSI (Pound-force per square inch absolute) 1mbar = 0.01450377 PSI
else // DISPLAY_ALTERNATIVE_VIEW_2
{
str = itoa((u32)AmbientPressure * 10000L / 6895L, 4, 3);
display_symbol(LCD_SEG_L1_DP1, SEG_ON);
}
display_chars(LCD_SEG_L1_3_0, str, SEG_ON);
}
}
else if (update == DISPLAY_LINE_CLEAR)
{
// Disable pressure measurement
sAlt.state = MENU_ITEM_NOT_VISIBLE;
// Stop measurement
stop_altitude_measurement();
// Clean up function-specific segments before leaving function
display_symbol(LCD_SEG_L1_DP1, SEG_OFF);
display_symbol(LCD_UNIT_L1_M, SEG_OFF);
display_symbol(LCD_UNIT_L1_FT, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_UP, SEG_OFF);
display_symbol(LCD_SYMB_ARROW_DOWN, SEG_OFF);
}
}