• spartan3estarter_top_baud57600.bit
• nexys4ddr_loopback_plus1_115200.bit recieves data and return a copy

• nexys4ddr_loopback_115200.bit recieves data and returns data+1 (disambiguates recieved data in terminal from local echo)

  Here are the port settings you should use for 57600. Make sure to click Change and look at the BOTTOM RIGHT to verify all settings have taken affect.

Here are the display settings I used so that each recieved byte is shown separately. Usually I start with the binary option, then move to uint8 before trying other options.

Here I send the 4 bytes to read from the highest address 4096-1, and send 81^2 as a high and low byte. The first time I click [Send Numbers], I get 0 0 back, which is what is intially in the RAM. When I click [Send Numbers] the second time I get the result 0 81