Known Limitations And Bugs On Pcb Rev A - ST STM3220F-EVAL User Manual

3. Known limitations and bugs on PCB rev A

•
When using MB760 adapter to connect the board to the STice some precautions
need to be considered to avoid short-circuits between MB760 PCB and the daughter
boards connectors CN2, CN3 and CN4 pins. An adhesive strip on bottom side of
MB760 used as isolation may be damaged when the MB687 (flexPCB) is plugged on
MB760 J2 connector. To avoid this issue it strongly recommended to connect first the
MB687 to MB760 then to screw MB760 to MCU socket on evaluation board (MB786).
•
On Mother board (MB786) Sheet 1 & 4 PB6 and PB9 are named respectively
I2C2_SCL and I2C2_SDA. Actually PB6 and PB9 alternate function are on I2C1
•
DCD signal on RS232 connector is connected to board RESET for bootloader
applications. It is not possible to disconnect this signal from RESET directly on the
board so when using RS232 interface the host need to maintain DCD signal low or
the corresponding pin needs to be disconnected on RS232 cable or connector.
•
BOOT0 and BOOT1 switches are swapped on the silkscreen.
•
Joystick is rotated by 180° compared to signals names on the schematic. Therefore a
workaround is needed in the software to swap up with down and right with left signals.
Qing SHAO Page 28
STM3220F-EVAL Board
03/06/2009