Can someone help me set up the ADV7343 to output PAL60 on DAC1? The input mode is 24 bit RGB. The datasheet specifies it as a supported output but I can't find which registers to set up.
Does Table 64 point to the right configuration
It's not in table 64, unless it's enough to set it up as PAL and then change the timings of VSYNC and HSYNC to give a 60Hz frame rate. My current set up is exactly the same as for PAL, is this correct?
Set if up for PAL and make sure you set the right color burst frequency. 0x8C...0x8F
Let me reference you to http://en.wikipedia.org/wiki/PAL which has a good/short information on all the different PAL formats.
That page has been more than helpful I think I'm set up correctly, the calculations for the colour burst frequency gives the exact same answer as for PAL. I'm assuming the timings are then taken from the hsync and vsync lines so if I give it a 525/60 image I'll get PAL 60 rather than PAL. Is that correct?
Yes, timings will be generated from H & V syncs
Hi, I'm still having trouble with PAL 60. When I set it up I get several black lines towards the top of the screen. Later lines have corruption as well. The location of the black lines is repeatable between power cycles.
Looking at the signal there is a vertical sync inserted on every other field, 20ms after the previous vsync happened (this doesn't seem like a coincidence to me).
Before you get me to check the generated sync timings I know this is not the issue. Using the same setup NTSC 443 is perfect, the configuration is nearly identical and I've narrowed the problem down to one register: 0x80. I write 0x11 for PAL60 and 0x10 for NTSC 443 to set the mode to PAL and NTSC respectively. All other registers except for 0x82 which sets the NTSC pedestal are the same. If I only change the PAL 60 setup to NTSC the problem disappears but then I'm not using PAL. Conversely when I change my NTSC 443 script to set 0x80 to 0x11 (PAL) and nothing else I get the same problem.
Seeing that the datasheet explicitly claims to support PAL 60 someone, somewhere must have a script that will configure it correctly.
This issue was forwarded to the device expert. I'll get back to you as soon as we get an answer
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