RISC-V: They Should Have Known Better
I am often asked to explain my distaste for RISC-V. Here it is.
Dmitry.GR
Dmitry Grinberg's blog
Latest posts
Preserving Pixter
Fisher-Price Pixter: From unknown and obscure to fully documented, emulated, and preserved
rePalm
PalmOS on new hardware!
8-pin Linux
Interactive-speed Linux on a tiny board you can easily build with only 3 8-pin chips
Sony Memory Stick
The first complete documentation of Sony Memory Stick from HW to DATA
Linux/4004
Slowly booting full Linux on the intel 4004 for fun, art, and absolutely no profit
Introducing the RP2350
Everything you ever dreamed the RP2040 would be is here - fall in love with the RP2350
springSD
Connect an SD card directly to the 68k bus
ROMRAM
8MB of real memory-mapped RAM on RP2040
m0FaultDispatch
Resumable faults on Cortex-M0!
Complex PIO machinery
Driving a poorly-designed display and touch board using no CPU at all
Missing-link Hi-Res Palm
Playing with a one-of-a-kind early Hi-Res PalmOS device
LinuxCard
My business card runs Linux (and Ultrix), yours can too. Details, kits, etc...
SASD
Retrocomputing gone wild: SD card support for old PalmOS devices, attached over serial port
Reverse Engineering an Unknown Microcontroller
How to reverse engineer a completely undocumented microcontroller. From nothing to a full SDK in one week flat!
Hacking eInk Price Tags
Wireless picture frames that run for years on batteries
A challenge
Can YOU figure it out?
PokéWalker hacking
Complete device takeover by blinking at it!
Linux on an 8-bit micro?
A successful experiment in running real Linux on an 8-bit AVR.
Smart 3LS363A
Convert an antique 3LS363A into a smart i2c display!
Cortex Prog
Program, debug, and unlock anything anytime anywhere
ModulaR bootloader
AVR USB bootloader with encryption, and USB API for loaded code (a first)
VMU hacks (&C-M23 emulator)
All about the SEGA VMU (including dumping the ROM, things never before known or possible)
PSoC4 confidential
Unofficial PSoC4 manual/FAQ/errata. Pssst, budddy... want to know more?
Exploiting PSoC4 for fun and profit
An attempted security system turns into rootkit enablement. Or allows code theft. Or doubles size of flash.
Simple valentines' day heart
In case you still need a simple present for v-day, here is an idea both in SMT and in PTH
Updating the KLN89B
My epic saga of updating a plane's very old GPS's data in a very modern way
Android on SmartQ zWatch
Full sources for Android on zWatch
Android M on Nexus S
Get your crespo some marshmallow...
Android M on Nexus 7 2012
Get your grouper some marshmallow...
Android M on Nexus 10
Get your manta some marshmallow...
Android M on Nexus 4
Get your mako some marshmallow...
Cool Room Lights
1000 RGB lights ought to be enough for everyone?
Holiday Card
A card that plays one of many songs
Playing with eTokens
Running custom code on Aladdin PASS eTokens
Advanced Transcend WiFiSD hacking
Custom kernel and Ubuntu chroot
Hyperloop Reponse
Calm down and do some physics...
USB RGB status light(s)
3 USB-controllable RGB LEDs to show things like build statusses
uJ - a Java VM for microcontrollers
A full Java VM that can run on even the smallest of microcontrollers
LED pendant (8x8)
A cool piece of tech-jewelry to be worn in any club environment
"Bit-Banging" Bluetooth Low Energy
Creating BTLE-compliant advertisement packets, so that iOS and android devices can see and parse them.
Efficient SBC decoding
A workng exmaple of an efficient integer decoder for Bluetooth's SBC codec.
Cortex-M0 emulator on an ATTiny85
A workng emulator of the Thumb instruction set written in asembly for the 8-bit AVR family of microcontrollers.
RC Dimmer
A 120V Dimmer with infra-red remote control implemented using 2 PIC microcontrolers.
Nike+iPod reverse Engineering
A work on reverse engineering the Nike+iPod wireles sprotocl, complete with decoder and data explanations.
RC Mood light
A mood light with infra-red remote control implemented using 2 PIC microcontrolers.
One-chip 11x10 LED matrix
A charlieplexed 10x11 LED matrix driven by a single chip - a 14-pin PIC microcontroller. No other chips are used.
One-chip sound player
A cool way to play audio from an SD card using a single 8-pin PIC microcontroller and no other chips at all
Import SMS PalmOS -> iPhone
A method to import SMSs form PalmOS (or many other sources) into iPhone, including some scripts and programs to help