10-01-2020, 08:20 AM
Hi,
I can not reproduce the error with vivado 2018.3.
This kind of looks like the placer is complaining that the IOBUF instance does not drive a physical IO Port on the FPGA.
The pad_bootsel input of the pulpissimo module is not connected in xillinx_pulpissimo.v, nor is any IO Port connected to the signal in the constraint file.
Either try to set pad_bootsel to a fixed value in the fpga wrapper file (although it will probably complain with a similar message) or connect it to a real IO, eg. a switch on the board.
I can not reproduce the error with vivado 2018.3.
Code:
[Place 30-69] Instance i_pulpissimo/pad_frame_i/padinst_bootsel/iobuf_i/IBUF (IBUF driven by I/O terminal i_pulpissimo/pad_frame_i/padinst_bootsel/iobuf_i/IO) is unplaced after IO placerThis kind of looks like the placer is complaining that the IOBUF instance does not drive a physical IO Port on the FPGA.
The pad_bootsel input of the pulpissimo module is not connected in xillinx_pulpissimo.v, nor is any IO Port connected to the signal in the constraint file.
Either try to set pad_bootsel to a fixed value in the fpga wrapper file (although it will probably complain with a similar message) or connect it to a real IO, eg. a switch on the board.