For the beginning I want to thank you to mdmetzle for this great work and of course to all contributors to improvement of this library. And just after that I want to switch to my problem.. maybe someone can help.
I also started to use this library and of course coming from R/C world, I started to develop my own OSD as many others. Why I did start? Not because I don't like others on the market or because they are not good, but as always because of low cost.
I already have an Arduino Duemilanove Board - and succeeded with drawing of the OSD on the screen(like HUD). Nothing complicated because of is TVout library.
As second step, i did wrote the part of code where I am reading the data from GPS NMEA sentences. But of course, because this library is interrupt driven the serial doesn't work even if using pollserial(). This 2 parts works well apart from each other but not together. Together I have problems .. screen flickering and/or missing GPS info (incomplete NMEA sentence).
Also, thinking that the purpose of OSD is to overlay the text over image some modification need to be done to accomplish this, and maybe using sync generator will also help improving the timing?
So, the big question here: Will anyone help me interfacing my arduino board with LM1881?! Maybe someone already did it and can share useful info about that.
As I know, LM1881 should be connected to INT0 and INT1 of ATMEGA.. but the rest.. I don't know
so.. here I will stop "crying" .. and will return later with any other info that I will learn.