Recent Articles
Using Xmodem to Transfer Files to Retro Computer
My retro computer is an SC126 designed by Stephen C. Cousins. It has two serial ports. I am using 1 serial port to interface with my retro amber monitor. That leaves the second one open to use as a way to transfer programs and data from my laptop to the retro computer.
The port circled in orange is the primary serial port. I have mine plugged into the amber terminal. The one outlined in blue is used to communicate with the PC.
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VGA on an FPGA
I have been working with my FPGA boards to attempt to display a test pattern on a VGA monitor. For my experiments, I bought a small VGA monitor*. It has a VGA input, as well as a HDMI input, so I can use it with all of my FPGAs, since the Zybo only has HDMI ports. Hardware I am using my Mercury 2 with the Mercury baseboard attachment, as it has a VGA port on it.
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SAP-1 on FPGA Ep. 2 - Simple Seven Segment
In my previous post about the SAP-1, I discussed using the LEDs on my Nexys 7 to display the results of any data that I want to produce. I mentioned that the 8 digit 7-segment display was above my head.
This post is an attempt to make sense of it and get it working as best I can. I’m going to start by simply wiring up the output ports for the Seven Segment display to the top level circuit.
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