4 layers68.6 × 53.3 mm
Icezum
FPGAwars/icezum
:star2: IceZUM Alhambra: an Arduino-like Open FPGA electronic board
218 parts357GPL-3.0
2 layers65 × 56 mm
Avr5hat
gcormier/avr5hat1Pi Hat that can program 5 AVR's at once
- Size
- 65 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 59
- Pads
- 152
- Tracks, vias
- 309, 38
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 12 Mar 2023
- Updated
- 31 Jul 2024
Overview
Avr5hat is an open-source printed circuit board by gcormier, from the gcormier/avr5hat repository on GitHub. It is a 2-layer board of 65 × 56 mm with 21 parts on 59 nets, routed with 309 tracks and 38 vias.
It is built around the TXS0108EPW. Its parts include 7 connectors, 6 capacitors and 3 ICs.
Main components
1README
readme.md
avr5hat
A hat for the Pi that can program up to 5 AVR's at once. The port AVR1 uses the PI's hardware SPI, the rest are software (bitbang).
Level-shifting from 3.3V to 5V is handled by three TXS0108E.
Heavy inspiration from https://github.com/sparkfun/SparkFun_Pi_AVR_Programmer_HAT
For sale on Tindie
I have a kit (soldering required) available on Tindie at https://www.tindie.com/products/gcormier/avr5hat
Flashing Notes
#program flash and lock bits
sudo avrdude -p $DEVICE -C /home/pi/avrdude_gpio.conf -c linuxspi -P /dev/spidev0.0 -b 2000000 -D -v -u -U flash:w:$firmware:i -u -U lock:w:$LOCK:m
sudo avrdude -p $DEVICE -C /home/pi/avrdude_gpio.conf -c linuxspi -P /dev/spidev0.0 -b 125000 -D -v -e -u -U hfuse:w:$HIGH_FUSE:m -u -U lfuse:w:$LOW_FUSE:m -u -U efuse:w:$EXT_FUSE:m 2>/home/pi/fuse_results.txtPi Setup Notes
Make sure to add dtoverlay=spi0-1cs to your /boot/config.txt
sudo apt install gpiod
Useful links
https://github.com/avrdudes/avrdude/wiki/Building-AVRDUDE-for-Linux
https://learn.adafruit.com/program-an-avr-or-arduino-using-raspberry-pi-gpio-pins/installation
sudo apt-get install build-essential git cmake flex bison libelf-dev libusb-dev libhidapi-dev libftdi1-dev libreadline-dev
wget https://github.com/avrdudes/avrdude/archive/refs/tags/v7.1.tar.gz
tar zxvf v7.1.tar.gz && rm v7.1.tar.gz
cd avrdude-7.1/
cmake -D CMAKE_BUILD_TYPE=RelWithDebInfo -D HAVE_LINUXGPIO=1 -D HAVE_LINUXSPI=1 -B build_linux
cmake --build build_linux
sudo cmake --build build_linux --target installNow when you run avrdude -c?type you should see linuxgpio and linuxspi in the list of valid programmer types.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6 |
| 4 | MountingHole_2.7mm_M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | MH1, MH2, MH3, MH4 |
| 3 | TXS0108EPW | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1, U2, U3 |
| 1 | AVR1 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J5 |
| 1 | AVR2 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J3 |
| 1 | AVR3 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J4 |
| 1 | AVR4 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J2 |
| 1 | AVR5 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J6 |
| 1 | Aux | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J7 |
| 1 | GPIO | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
The 20 most common of 21 parts.
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Questions
How big is the Avr5hat PCB?
It measures 65 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Avr5hat use?
21 parts, built around the TXS0108EPW. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Avr5hat KiCad files?
From the gcormier/avr5hat repository on GitHub, at the commit this page was made from: the board is pcb/avr5hat.kicad_pcb and its schematic pcb/avr5hat.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Avr5hat design in my own project?
Its repository states no licence, so its author keeps all rights: ask gcormier before reusing the design.