Posted on December 01, 2013 at 17:54Hard to say, there are several aspects of the 429I and specifically the STM32F429I-DISCO where the pin selection is less than desirable. I am some what confused about the pin escape choices that where made in the design, and would certainly like to hear what drove ST's decisions here, and if they can be revisited in subsequent designs. For example there is little control of SDIO pin escape and LCD_R2 is parked smack in the middle, and as you have observed a mess of DCMI ones.
The pin muxing would certainly allow for pin usage to be switched back and forth, if external connectivity and conflicts would preclude such action is another matter.
The pool of respondents is likely pretty shallow, I would suggest you try experimenting yourself. The code examples (DCMI) and schematics for the STM324x9I-EVAL might provide a starting point for such experiments.
