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Showing results for tags 'vivado 2020.2'.
Normally I would have had a question for the forum now. However, shortly before sending the question, I found the cause of the problem myself. As it turned out, it is not a problem but only a lack of information about the Vivado development environment. Therefore, here is my question and the direct answer to it. (so that others don't waste their time) The question would have been: I have written a small Verilog description which only flashes one LED. It can be programmed into the board with the USB cable and it works. Then I tried to program this
Using the Digilent PmodHygro IP in Vivado 2020.2 I am getting the following DRC errors. [DRC NSTD-1] Unspecified I/O Standard: 6 out of 146 logical ports use I/O standard (IOSTANDARD) value 'DEFAULT', instead of a user assigned specific value. This may cause I/O contention or incompatibility with the board power or connectivity affecting performance, signal integrity or in extreme cases cause damage to the device or the components to which it is connected. To correct this violation, specify all I/O standards. This design will fail to generate a bitstream unless all logical ports have a us