Test of the uPilot32 UAV Devboard. The MAX7456 OSD Layout Display is composed of 30 rows and 15 lines.
Therefore, the WriteString functions has a x (1 to 30) and a y (1 to 15) to position the first character of the string in the screen.
See more about the MAX7456 OSD : http://datasheets.maximintegrated.com/en/ds/MAX7456.pdf
See more about uPilot32 : http://vgrsystems.free.fr
Code will be available soon here : https://code.google.com/p/vgrsystems-upilot32