tinyGPS - trying to output status

i got code working nicely, gps needs reset , cannot tell.

in code below, tried adding either of 2 commented else statements, made output stuck in state, though gps outputting valid data.

i'd print on lcd "wait gps fix" time of waiting, , status of wheather gps sending data @ (this bool variable added feedgps function @ bottom.

maybe need make first else statement if (gpsdata = 0) statement?

code: [select]

#include <newsoftserial.h>
#include <tinygps.h>
#include <string.h>
#include <ctype.h>


/* sample code demonstrates normal use of tinygps object.
  requires use of newsoftserial, , assumes have a
  4800-baud serial gps device hooked on pins 2(rx) , 3(tx).
*/

tinygps gps;
newsoftserial nss(2, 3);

void gpsdump(tinygps &gps);
bool feedgps();
void printfloat(double f, int digits = 2);

int tzone = -7;
bool gpsdata = false;

//connect lcd
#define rxlcdpin 4  // rxpin immaterial - not used - make unused arduino pin number
#define txlcdpin 14 // pin 14 analog pin 0, on bbb use servo cable :), see reference pinmode
//softwareserial lcd = softwareserial(rxlcdpin, txlcdpin);
newsoftserial lcd = newsoftserial(rxlcdpin, txlcdpin);


int ledpin=13;  //led test pin

void setup()
{
 serial.begin(115200);
 nss.begin(4800);
 
 serial.print("testing tinygps library v. "); serial.println(tinygps::library_version());
 serial.println("by mikal hart");
 serial.println();
 serial.print("sizeof(gpsobject) = "); serial.println(sizeof(tinygps));
 serial.println();
 
 //set lcd
 pinmode(txlcdpin, output);
 lcd.begin(9600);  // 9600 baud chip comm speed
 lcd.print("?g216");  // set display geometry,  2 x 16 characters in case
 delay(500);  // pause allow lcd eeprom program
 lcd.print("?b50");  // set backlight 00 ff hex (minimum maximum brightness)
 delay(1000);  // pause allow lcd eeprom program
 lcd.print("?s05");  // set tabs 5 spaces
 delay(1000);  // pause allow lcd eeprom program
 lcd.print("?c0");  // set cursor style, 0= none 2= blinking 3=underline
 delay(5);
 lcd.print("?f");  // clear lcd
 delay(5);
 lcd.print("hello gps");
 delay(1000);
 lcd.print("?f");  // clear lcd
 lcd.print("wait gps fix");
}


void loop()
{
//  gpsdata = false;
 digitalwrite(ledpin, high);
 bool newdata = false;
 unsigned long start = millis();

 // every 5 seconds print update
 //while (millis() - start < 5000) {
 if (feedgps()) {
     newdata = true;
     digitalwrite(ledpin, low);
 }
 
 /********************************
 else {
   lcd.print("?x00?y0wait gps fix");
   lcd.print("?x00?y1"); lcd.print(millis() / 1000);
   lcd.print("?x11?y1"); lcd.print(gpsdata);
 }
********************************/
 
 if (newdata) {
   serial.println("acquired data");
   serial.println("-------------");
   gpsdump(gps);
   serial.println("-------------");
   serial.println();
   wait = 0;
 }
/**********************
 else {
   lcd.print("?x00?y0wait gps fix");
   lcd.print("?x00?y1"); lcd.print(millis() / 1000);
   lcd.print("?x11?y1"); lcd.print(gpsdata);
 }
// ************************/

}


void printfloat(double number, int digits) {
 // handle negative numbers
 if (number < 0.0) {
    serial.print('-');
    number = -number;
 }

 // round correctly print(1.999, 2) prints "2.00"
 double rounding = 0.5;
 for (uint8_t i=0; i<digits; ++i)
   rounding /= 10.0;
  number += rounding;
 
 // extract integer part of number , print it
 unsigned long int_part = (unsigned long)number;
 double remainder = number - (double)int_part;
 serial.print(int_part);

 // print decimal point, if there digits beyond
 if (digits > 0)
 {
   serial.print(".");
 }

 // extract digits remainder 1 @ time
 while (digits-- > 0)
 {
   remainder *= 10.0;
   int toprint = int(remainder);
   serial.print(toprint);
   remainder -= toprint;
 }
}

void lcdprintfloat(double number, int digits)
{
 // handle negative numbers
 if (number < 0.0)
 {
    lcd.print("-");
    number = -number;
 }

 // round correctly print(1.999, 2) prints "2.00"
 double rounding = 0.5;
 for (uint8_t i=0; i<digits; ++i)
   rounding /= 10.0;
  number += rounding;
 
 // extract integer part of number , print it
 unsigned long int_part = (unsigned long)number;
 double remainder = number - (double)int_part;
 lcd.print(int_part);

 // print decimal point, if there digits beyond
 if (digits > 0)
 lcd.print(".");

 // extract digits remainder 1 @ time
 while (digits-- > 0)
 {
   remainder *= 10.0;
   int toprint = int(remainder);
   lcd.print(toprint);
   remainder -= toprint;
 }
}


void gpsdump(tinygps &gps)
{
 long lat, lon;
 float flat, flon;
 unsigned long age, date, time, chars;
 int year;
 byte month, day, hour, minute, second, hundredths;
 unsigned short sentences, failed;

 gps.get_position(&lat, &lon, &age);
 serial.print("lat/long(10^-5 deg): "); serial.print(lat); serial.print(", "); serial.print(lon);
 serial.print(" fix age: "); serial.print(age); serial.println("ms.");
 //lcd.print("?x00?y0"); lcd.print(lat);
 //lcd.print("?x00?y1"); lcd.print(lon);
 
 feedgps(); // if don't feed gps during long routine, may drop characters , checksum errors

 gps.f_get_position(&flat, &flon, &age);
 serial.print("lat/long(float): "); printfloat(flat, 5); lcd.print("?x00?y0"); lcdprintfloat(flat, 5); serial.print(", "); printfloat(flon, 5); lcd.print("?x00?y1"); lcdprintfloat(flon, 5);
 serial.print(" fix age: "); serial.print(age); serial.println("ms.");
 //lcd.print("?x00?y0"); lcd.print(flat);
 //lcd.print("?x00?y1");lcd.print(flon);

 feedgps();

 gps.get_datetime(&date, &time, &age);
 serial.print("date(ddmmyy): "); serial.print(date); serial.print(" time(hhmmsscc): "); serial.print(time);
 serial.print(" fix age: "); serial.print(age); serial.println("ms.");
 //lcd.print("?x08?y0"); lcd.print(time);
 lcd.print("?x10?y1");lcd.print(date);

 feedgps();

 gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age);
 if (hour > 7)
   hour = hour + tzone;
 if (hour < 8)
   hour = hour + (tzone + 24);
 serial.print("date: "); serial.print(static_cast<int>(month)); serial.print("/"); serial.print(static_cast<int>(day)); serial.print("/"); serial.print(year);
 serial.print("  time: "); serial.print(static_cast<int>(hour)); serial.print(":"); serial.print(static_cast<int>(minute)); serial.print(":"); serial.print(static_cast<int>(second)); serial.print("."); serial.print(static_cast<int>(hundredths));
 
 serial.println(millis());
 lcd.print("?x08?y0");
 if ((static_cast<int>(hour)) < 10)
   lcd.print("0");
 lcd.print(static_cast<int>(hour));

 lcd.print("?x10?y0"); lcd.print(":");
 if ((static_cast<int>(minute)) < 10)
   lcd.print("0");
 lcd.print(static_cast<int>(minute));

 lcd.print("?x13?y0"); lcd.print(":");
 if ((static_cast<int>(second)) < 10)
   lcd.print("0");
 lcd.print(static_cast<int>(second));
 serial.println(millis());
 serial.print("  fix age: ");  serial.print(age); serial.println("ms.");
 
 feedgps();

 serial.print("alt(cm): "); serial.print(gps.altitude()); serial.print(" course(10^-2 deg): "); serial.print(gps.course()); serial.print(" speed(10^-2 knots): "); serial.println(gps.speed());
 serial.print("alt(float): "); printfloat(gps.f_altitude()); serial.print(" course(float): "); printfloat(gps.f_course()); serial.println();
 serial.print("speed(knots): "); printfloat(gps.f_speed_knots()); serial.print(" (mph): ");  printfloat(gps.f_speed_mph());
 serial.print(" (mps): "); printfloat(gps.f_speed_mps()); serial.print(" (kmph): "); printfloat(gps.f_speed_kmph()); serial.println();

 feedgps();

 gps.stats(&chars, &sentences, &failed);
 serial.print("stats: characters: "); serial.print(chars); serial.print(" sentences: "); serial.print(sentences); serial.print(" failed checksum: "); serial.println(failed);
}
 
bool feedgps()
{
 while (nss.available()) {
   if (gps.encode(nss.read()))
//    gpsdata = true;
     return true;
 }
 return false;
//  gpsdata = false;
}

i tried couple of other things, no combination of if statements think would.

code: [select]


void loop()
{
//  gpsdata = false;
 digitalwrite(ledpin, high);
 bool newdata = false;
 unsigned long start = millis();

 // every 5 seconds print update
 //while (millis() - start < 5000) {
 if (feedgps()) {
     newdata = true;
     digitalwrite(ledpin, low);
 }
 
 /********************************
 if (gpsdata == 1 && feedgps == 0) {
   lcd.print("?x00?y0wait gps fix");
   lcd.print("?x00?y1"); lcd.print(millis() / 1000);
   lcd.print("?x11?y1"); lcd.print(gpsdata);
 }
// ********************************/

 /********************************
 if (gpsdata == 0 && feedgps == 0) {
   lcd.print("?x00?y0no gps data!!!!!");
   lcd.print("?x00?y1"); lcd.print(millis() / 1000);
   lcd.print("?x11?y1"); lcd.print(gpsdata);
 }
********************************/


 if (newdata) {
   serial.println("acquired data");
   serial.println("-------------");
   gpsdump(gps);
   serial.println("-------------");
   serial.println();
 }

 /********************************
 if (gpsdata == 1 && newdata == 0) {
   lcd.print("?x00?y0wait gps fix");
   lcd.print("?x00?y1"); lcd.print(millis() / 1000);
   lcd.print("?x11?y1"); lcd.print(gpsdata);
 }
// ********************************/

 /********************************
 if (gpsdata == 0 && newdata == 0) {
   lcd.print("?x00?y0no gps data!!!!!");
   lcd.print("?x00?y1"); lcd.print(millis() / 1000);
   lcd.print("?x11?y1"); lcd.print(gpsdata);
 }
********************************/

}


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