Are there daughter boards available for eval board to buy?
According to user manual um2198,
Two 40-pin male headers CN11 and CN12 are used to connect with memory daughterboard.
Two 60-pin male headers CN6 and CN7 can be used to connect a daughterboard or a standard wrapping board to the STM32H7x3I-EVAL Evaluation board. All GPI/Os are available on CN6 and CN7 and memory connectors on CN11 and CN12.
The space between these two connectors is defined as a standard that allows developing common daughterboards for several ST evaluation boards. The standard width between CN6 pin1 and CN7 pin1 is
2700 mils (68.58 mm).
