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ISPnub - Stand-alone AVR programmer module

USBasp - USB programmer for Atmel AVR controllers

USBasp Foto
USBasp is a USB in-circuit programmer for Atmel AVR controllers. It simply consists of an ATMega88 or an ATMega8 and a couple of passive components. The programmer uses a firmware-only USB driver, no special USB controller is needed.

Features

Download

Firmware and circuit

USBasp is OpenSource, it's free!
Like it? You can support via PayPal:
€ 5
€ 10
€ 15
Special thanks to these contributors (€60 or more within last 12 month):

9xrProgrammer.com - Shop with USBasp based programmers
The following packages include circuit and firmware.
usbasp.2011-05-28.tar.gz (519 kB) TPI support (upcoming release of avrdude will use it), supports programmers with ATMega88 and ATMega8.
usbasp.2009-02-28.tar.gz (260 kB)
usbasp.2007-10-23.tar.gz (172 kB)
usbasp.2007-07-23.tar.gz (176 kB)
usbasp.2006-12-29.tar.gz (118 kB) Supports programmers with ATMega48 and ATMega8.
usbasp.2006-09-16.tar.gz (116 kB) New VID/PID!
usbasp.2005-11-14.tar.gz (175 kB)
usbasp.2005-07-03.tar.gz (166 kB)
usbasp.2005-04-21.tar.gz (169 kB)

Please refer to Readme.txt for details on building, installing and using USBasp.

Drivers

On Linux and MacOS X no kernel driver is needed. Windows requires a driver for USBasp:
usbasp-windriver.2011-05-28.zip (70 kB)

en How to install USBasp drivers on Windows 8

Software

Hardware

Schematic

USBasp schematic

Partlist

PCB + programmed uC
USBasp: PCB, uC
€ 12,90
incl. 19% VAT excl. € 2 shipping

Order USBasp-Set now!
PartnumberValueReichelt No
C14,7uRAD 4,7/35
C2100nX7R-5 100N
C3, C422pKERKO 22P
D1, D23V6 zenerZF 3,6
CON1USB-BUSB BW
CON210polWSL 10W
IC1ATmega8-16ATMEGA 8-16 (not programmed!)
JP1, JP22pol 2,54mmSL 1X36G 2,54
LED13mm LED greenLED 3MM 2MA GN
LED23mm LED redLED 3MM 2MA RT
Q112Mhz12,0000-HC49U-S
R1, R2681/4W 68
R32,2k1/4W 2,2k
R4, R5, R6, R72701/4W 270
R810k1/4W 10k
R9, R101k1/4W 1k
M1, M2JumperJUMPER 2,54GL SW
M3Socket 28SGS 28-S
M4CaseTEKO 10007
M5PCB-

User PCB layouts

Here is a list of tested PCB layouts. If you have designed your own PCB, please let me know.

USBasp: single-side PCB
   usbasp_single_side.t3001.zip
by Thomas Fischl
Single-Side PCB, TARGET 3001! layout file
Size: 90x40 mm (optimized for case Hammond 1591ATBU)
LV-USBasp
   lv_usbasp.tar.gz
by Pawel Szramowski (11/2007)
With Low-voltage front-end.
Single-Side PCB, EAGLE layout files, some SMD components
Bernhard Walle
   by Bernhard Walle
Double-Side PCB, EAGLE layout files, part list with order numbers for Reichelt.de and Conrad.de
Size: optimized for case Hammond 1591ATBU
Thomas Pfeifer
   http://thomaspfeifer.net/atmel_usb_programmer.htm
by Thomas Pfeifer
Single-Side PCB, PDF layout files, SMD components
Tomasz Ostrowski
   by Tomasz Ostrowski
Single-Side PCB, PDF and EPS layout files, only four 0805 SMD parts, rest discrete components
USBasp by Christian Heigemeyr
   USBasp_CH.zip
by Christian Heigemeyr
Single-Side PCB, with some SMD 0805 components, PDF-files
With additional buttons for reset and disconnection of the target
Zhurov Pavel
   USBasp.sch, USBasp.pcb
ComponentSide.pdf, TopSide.pdf, Schematics.pdf
by Zhurov Pavel
Single-Side PCB, P-CAD 2002 format and PDF files
Crosspiece TXD and RXD are added for the ISP connector
J.A. de Groot
   usbasp_gr.rar
by J.A. de Groot
The board is single sided (EAGLE format), measures 3 by 8 cm and uses only regular components.
Matthias Goerner
   usbasb_mg.zip
by Matthias Görner
Single-Side PCB, eagle-format, with PS/PDF-files
integrated sockets for target chips ATmega8 and ATmega32
USBasp by Hannes Östlund
   Tarball with layout
by Hannes Östlund
Doubleside-Side PCB, SMD components, very small
USBasp by Sergiy Bogdancev
   by Sergiy Bogdancev (01/2010)
3.3V version, ATMega48 only. Single-side PCB, ExpressPCB layout format + socket board for varies AVRs. Without future serial interface, chip initially must be programmed with another programmer.
USBasp by Hans Hafner
   Eaglefiles (sch/brd) and CAD case design (dxf)
by Hans Hafner, HTL Mössingerstrasse-Klagenfurt, Österreich, hans.hafner (at) htl-klu (dot) at
(01/2010)
CNC-milled case (DXF file available), Eagle layout, only a few SMD parts
USBasp by Sven Hedin
USBasp by Sven Hedin
   Different USBasp versions: Easy to built non-smd, smd version and a very small USBasp
by Sven Hedin (01/2011)
Eagle files available.
USBasp by Fabio Baltieri
   USB Key AVR Programmer
by Fabio Baltieri (09/2011)
Very small USB key like dimensions. SMD parts.
USBasp by Jaroslav Vadel
   AVR ISP Programmer
by Jaroslav Vadel (04/2012)
Small programmer. SMD parts.
USBasp by Marius Schäfer
   Target project and PDFs (layout/schematics)
by Marius Schäfer (09/2013)
tinyUSBboard
   tinyUSBboard with USBasp-compatible firmware
by Stephan Bärwolf (04/2014)

Links

en http://www.obdev.at/products/avrusb/ Firmware-only AVR USB driver
en http://libusb.sourceforge.net/ libusb
en http://libusb-win32.sourceforge.net/ LibUsb-Win32
en http://www.nongnu.org/avrdude/ AVRDUDE - AVR Downloader/UploaDEr