I’ve got a question regarding the DM648 video ports. I am using VP0 as an output port to a Video DAC and I have VP0CLK1 connected to this DAC. VP0CLK0 is left unconnected. I have now seen in the VP User Guide that an input clock needs to be present at VP0CLK0 in order to be able to perform a software reset on a VP. These software resets occur in many places in the VP driver – so I have had to go and comment all of those out.
My first question is – are things going to work at all without a clock on VP0CLK0? The DM648 datasheet says that the VPs are clocked by internal clock SYSCLK1, so I did not think that we needed an input clock on a video port that we were going to use as an output port. If we are in fact going to be OK without the input clock – does anyone know if not doing the software resets during VP initialization will cause things not to work correctly?
Thanks
