Other Parts Discussed in Thread: TMDSHSECDOCK
Please see attached schematic. I've just received the boards from the board assembler and tried to power on up. The power supply got blisteringly hot and the TMS320F280045RSHSR uC got very warm. I measured the input current and saw it was 900mA. I inspected the board very closely for assembly errors and found none. I reviewed my design and found a couple of things wrong. First, VDDIO_SW (pin 48) was not connected to VDDIO. That has been corrected with a jumper wire. The second issue is GPIO22_VFBSW (pin 51) is connected to an output pin. This should be no problem as it is not connected to anything at this time. I took another board and made the corrections and still have the same problem. If it is possible, please do a peer review on my design and inform me of any issues you see. I'm using the TMS3230F280049C control card and the TMDSHSECDOCK docking station for code development. I measured the input current of this board set and it was less than 50mA. It's obvious that I've done something wrong here. Any help will be sincerely appreciated. Thank you.