I', using a Video Sync Separator with the K28F to get the luminance to text/graphic overlay, connecting it to the analog comparator module.
Also, I would to get the chrominance, in order to change the color text/graphics. I have seen that with a microcontroller it's possible using a crystal oscillator of 14.3181 MHz. I'm using a external 32.768Khz crystal in my project.
I could to use someone the internal clocks of the K28F to it? or I will need to add a external crystal?