B4R Question Parse GPS time..

[Beja]

Can this be implemented in B4R?

 

[tigrot]

Of course. It's a simple reading the string and scan it, separating each element using the comma separator. Each kind of message has a format. You can google the format(the first element in the row). Latitude and longitude generally are expressed in decimal format, so you must convert to sexagesimal format, which is the usual format.

 

[Siam]

sexagesimal format

what for format is this

 

[thetahsk]

Can this be implemented in B4R?

Look here for the NMEA format and a small parsing example

http://aprs.gids.nl/nmea/
https://www.b4x.com/android/forum/threads/read-nmea-sentence.71397/#post-453642

 

[Beja]

Look here for the NMEA format and a small parsing example

http://aprs.gids.nl/nmea/
https://www.b4x.com/android/forum/threads/read-nmea-sentence.71397/#post-453642

Thank you.
I tried the conversion but I got unfortunately app stopped ... And then exit the app.
I think the conversion time is longer than the timer interval..

 

[Erel]

I've removed the post with the huge images. It makes the thread unreadable.

I think the conversion time is longer than the timer interval..

This is unlikely. However the code is B4J code. It will not work in B4R without some modifications.

 

[tigrot]

Sexagesimal format is grade, minutes,seconds. NMEA is espressed in grade and decimal fraction.

 

[Beja]

Sexagesimal format is grade, minutes,seconds. NMEA is espressed in grade and decimal fraction.

I remember the Motorola 6809 cpu had SEX in its instruction set. It meant Sign Extended. But that command disappeared in its successor the 68000. Maybe they decided to be more decent.

 

[tigrot]

I started to study IT in 1972 the year after Intel 4004 release. In 1974 I was working in Panini's stickers company, a world wide company. I've never used assembly with 6809. Maybe binary format was unpopular so they introduced SEX instruction, a little ambiguous word.

 

[tigrot]

I'm reading that SEX has nothing to do with sexagesimal, it's Sign EXtend. Working with register sign. Sexagesimal comes from latin word SEXAGINTA which means sixty.

 

[Beja]

I'm reading that SEX has nothing to do with sexagesimal, it's Sign EXtend. Working with register sign. Sexagesimal comes from latin word SEXAGINTA which means sixty.

Yes I know that and already noted SEX at that remote time was for sign extended.
Assembly language was cryptic and hard to program with.. So I think Motorola put the SEX instruction to give programmers a little energy and motivation.. : )
I programmed Zilog Z80 and was exited to use the DJNZ instruction (Decrement and Jump if Not equal to Zero)

 

[Beja]

I've removed the post with the huge images. It makes the thread unreadable.
.

Thanks Erel and sorry about that.

 

[Beja]

I started to study IT in 1972 the year after Intel 4004 release. In 1974 I was working in Panini's stickers company, a world wide company. I've never used assembly with 6809. Maybe binary format was unpopular so they introduced SEX instruction, a little ambiguous word.

I also didn't use the MC6809 in real design, but read about it and the instructions added to the 6802, one of them was the SEX instruction (All capital)
What I liked in the Z80 is that, data and address were separate pins (0 to 7, and 0 to 15 respectively) , while in MC6802 some data and address lines share .
the same pins. (multiplexed) so you needed to design hardware and software logic to solve this.