Phung Cheng Fei

DDR. A simple DDR3 memory controller

riffa2. Full duplex version of https://github.com/KastnerRG/riffa/issues/30

Mamba_SSM. A simple implementation of [Mamba: Linear-Time Sequence Modeling with Selective State Spaces](https://arxiv.org/abs/2312.00752)

cordic. A pipelined cordic algoithm for computing cos(angle) and sin(angle) in verilog

noc. A simple spidergon network-on-chip with wormhole switching feature

gilbert_cell_mixer. A gilbert cell mixer circuit implementation in LTSpice

gdas. A simple implementation for the GDAS paper : Searching for A Robust Neural Architecture in Four GPU Hours

marchand_balun. A marchand balun design in ADS

LNA. a LNA circuit from the book "Design of CMOS RF Integrated Circuits and Systems"

NLHF. A simple code for [Nash Learning from Human Feedback](https://arxiv.org/abs/2312.00886)

butler_matrix. A 4 X 4 butler matrix beamforming network used to feed a phased array of antenna elements.

riffa. The RIFFA development repository

quantum-climate-challenge-2023. Jupyter Notebook

UART. UART implementation in verilog

afifo. A formally verified asynchronous fifo with clock gating feature

AXI. A simple AXI demo example

LDO. A simple LDO circuit

GFSK. A simple GFSK demodulator circuit

opamp. An opamp based on positive frequency compensation topology

internal_logic_analyzer. An internal logic analyzer/scope for FPGA's

AC_analysis_methods. A list of AC analysis methods used by various analog circuit analysis software

active_bandpass_filter. A CMOS bandpass filter inspired by "A Fully Integrated CMOS Active Bandpass Filter for Multiband RF Front-Ends"

fifo. A simple synchronous FIFO

div_by_two. A divide-by-two frequency divider circuit

multiply. A formally verified integer multiply softcore

arbiter. A simple round-robin arbiter

frequency_trap. LC bandstop filter for harmonics trap

planar_marchand_balun. A simple planar Marchand balun

gyrator. An active inductor using gyrator implementation in LTSpice

LoRA. LoRA: Low-Rank Adaptation of Large Language Models

nlp_attention. Some fun experiments around different types of NLP attention mechanisms

mcts. A simple vanilla Monte-Carlo Tree Search implementation in python

PiFold. Python

RNA-raiders. Cancer Immunotherapy Data Science Grand Challenge at https://www.topcoder.com/challenges/0494170d-3136-4139-89e0-6c1b009c66a2

FFT. Fast Fourier Transform architectures in photonic, quantum and verilog

phase_shifter. A simple phase shifter CMOS circuit using sky130 PDK

SPI. SPI flash controller for Winbond W25Q32 flash

pass_transistor. Pass Transistor Circuits

divide_by_two. Divide-by-2 Circuit

NyuziProcessor. Changes to https://github.com/jbush001/NyuziProcessor/ for local installation directory

amplifier. A simple class C amplifier