Skip to content

Instantly share code, notes, and snippets.

View buttercutter's full-sized avatar

Phung Cheng Fei buttercutter

76 followers · 29 following
View GitHub Profile
@buttercutter
buttercutter / PKGBUILD
Created October 3, 2021 08:08
PKGBUILD for Modelsim
pkgname=modelsim
# Keep dot in _patchver
_mainver=20.1; _patchver=.1; _buildver=720
pkgver=${_mainver}${_patchver}.${_buildver}
pkgrel=1
# According to the installer script, these dependencies are needed for the installer
depends=('ld-lsb' 'lib32-expat' 'lib32-fontconfig' 'lib32-freetype2' 'lib32-glibc'
'lib32-gtk2' 'lib32-libcanberra' 'lib32-libpng' 'lib32-libice' 'lib32-libsm'
@buttercutter
buttercutter / Sub-1_Volt_OTA.asc
Last active June 21, 2021 02:41
A Sub-1 Volt OTA using Ahuja Compensation as described in https://www.reddit.com/r/chipdesign/comments/o2lemj/questions_on_sub1_volt_ota/
Version 4
SHEET 1 2232 772
WIRE -96 -240 -128 -240
WIRE 48 -240 -16 -240
WIRE 96 -240 48 -240
WIRE 224 -240 176 -240
WIRE 704 -192 704 -240
WIRE 1216 -192 1216 -240
WIRE 1728 -176 1728 -224
WIRE 1920 -176 1920 -224
@buttercutter
buttercutter / gdas.py
Last active June 29, 2022 00:20
GDAS : Searching for A Robust Neural Architecture in Four GPU Hours
# https://github.com/D-X-Y/AutoDL-Projects/issues/99
import torch
import torch.utils.data
import torch.nn as nn
import torch.nn.functional as F
import torch.optim as optim
import torchvision
import torchvision.transforms as transforms
@buttercutter
buttercutter / Data_strobe_enable_circuitry.asc
Last active March 14, 2021 09:42
Circuit replication of "Data strobe enable circuitry" as described in https://patents.google.com/patent/US9001595
Version 4
SHEET 1 1032 900
WIRE -1408 -624 -1664 -624
WIRE -1248 -624 -1408 -624
WIRE -976 -624 -1184 -624
WIRE -1248 -592 -1408 -592
WIRE -1104 -592 -1184 -592
WIRE -1664 -544 -1664 -624
WIRE 640 -480 640 -560
WIRE 880 -480 880 -560
@buttercutter
buttercutter / darts.py
Created February 27, 2021 10:43
DARTS: DIFFERENTIABLE ARCHITECTURE SEARCH https://arxiv.org/pdf/1806.09055.pdf
import torch
import torch.utils.data
import torch.nn as nn
import torch.nn.functional as F
import torch.optim as optim
import torchvision
import torchvision.transforms as transforms
import numpy as np
@buttercutter
buttercutter / clock_gate_post_control.v
Last active February 24, 2021 13:14
https://www.reddit.com/r/chipdesign/comments/kv2ebv/glitches_in_clock_gating_cell/
// Credit : https://github.com/YosysHQ/yosys-bigsim/blob/master/openmsp430/rtl/omsp_clock_gate.v
//----------------------------------------------------------------------------
// Copyright (C) 2009 , Olivier Girard
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
@buttercutter
buttercutter / GFSK.asc
Last active February 12, 2021 16:33
A simple GFSK demodulator inspired from the paper : A GFSK demodulator for low-IF Bluetooth receiver
Version 4
SHEET 1 1976 956
WIRE 512 -480 416 -480
WIRE 656 -480 592 -480
WIRE 1104 -416 1104 -464
WIRE -832 -384 -832 -432
WIRE -1296 -256 -1536 -256
WIRE -1152 -256 -1296 -256
WIRE -1088 -256 -1152 -256
WIRE -976 -256 -1024 -256
@buttercutter
buttercutter / ddr3_memory_controller.sby
Last active February 12, 2022 03:15
A simple DDR3 memory controller
[tasks]
proof
cover
[options]
proof: mode prove
proof: depth 10
cover: mode cover
cover: depth 40
@buttercutter
buttercutter / phase_shifter.sch
Last active January 29, 2021 16:40
A phase shifter circuit from the paper: A Full X-Band Phased-Array Transmit Receive Module Chip in 65-nm CMOS Technology
v {xschem version=2.9.9 file_version=1.2 }
G {}
K {}
V {}
S {}
E {}
N 60 -10 180 -10 { lab=Vs1}
N 180 -10 270 -10 { lab=Vs1}
N 60 310 270 310 { lab=#net1}
N -80 290 -80 310 { lab=#net2}
@buttercutter
buttercutter / Net.py
Last active January 31, 2021 01:14
A simple neural network for tic-tac-toe game
import torch
import torch.utils.data
import torch.nn as nn
import torch.optim as optim
import numpy as np
import pandas as pd
from collections import Counter
from sklearn.model_selection import train_test_split