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I'm learning FPGAs, using the $25 Tang NANO 9K that I bought on Amazon Prime[1]. I just figured out how to use the PLL to generate clocks of arbitrary frequency, rather than the stock 27 Mhz.
I'm interested in using this board as the core of a SDR transceiver for the HF Amateur radio bands. Driving all the phases for a Tayloe polyphase mixer[4] should be trivial. The real question is, how high of a frequency can I get? ;-) Can I do 2 Meter SSB with it? I think I'll be able to do an NCO up to about 400 Mhz.
The reason I bought it in the first place is that I intend to design a BitGrid[2,3] chip, should there ever be another Google Shuttle, and this is my get to know Verilog project. I may break down and spend actual money on TinyTapeout[5] at some point in the future if Google gives up on the shuttles.
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I help an older friend continue to repair electronics. He's been fixing things since the 1950s, we've tackled everything from a jammed Scotch Thermal Laminator[6] machine through to Cesium Beam Atomic Clocks[7] with "dead" tubes. (Fun fact, usually you can use a high voltage power supply and time to power the ion pump and recover the tubes)
[1] https://www.amazon.com/dp/B0BCXYWV3T
[2] https://esolangs.org/wiki/Bitgrid
[3] https://bitgrid.blogspot.com/
[4] https://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
[5] https://efabless.com/tinytapeout
[6] https://www.scotchbrand.com/3M/en_US/p/pc/laminating/thermal...
[7] https://www.cs.cmu.edu/~dga/time/5061/5061B_ops.pdf
Distilling jax codebase to something small enough that I can read.
I got resnet to train on cifar10 by codegen the onnx graph and execute with onnxruntime.
Code is very WIP: https://github.com/radenmuaz/slope