CrispAVR-USB V2.2 is a modern STK500 (protocol V2) compatible ISP programming adapter for the Atmel AVR microcontroller family with USB interface.

The ISP adapter is connected to a PC or Mac through the USB bus. A modern FTDI USB-UART converter handles the communication with the ISP program over a virtual COM port. The target is connected with a 6-pin ISP header with standard Atmel pinout.

CrispAVR-USB V2.2 is STK500 V2 software compatible and can be used with all popular ISP programs, e.g. AVR-Studio, avrdude (comes with WinAVR), uisp, etc.

The ISP adapter is operating system independent and can program all Atmel AVR microcontroller with ISP interface! CrispAVR-USB provides level shifter and supports all target voltages from 1.5V to 5.5V.

Even though the CrispAVR-USB V2.2 isp adapter does not have real control elements, it provides two status LEDs, which signals the active download or e.g. warns in case the ISP adapter was connected reverse. A serial terminal mode offers a rudimentary configuration possibility beyond the normal host software. Detailed information is provided in the Infosheet.

The CrispAVR-USB V2.2 device is sealed in transparent plastic and comes ready-for-use with 40cm ISP cable attached.

Technical Data

• 6-pin standard ISP connector (automatically detects wrong polarity), approx. 40cm flat cable
• USB-A connector for direct PC connection
• Two status LEDs (green and orange)
• Atmel STK500 V2 procotol compatible
• Supports all Atmel Micro controllers with ISP internface (also AT89xxx!)
• Supports target VCC from 1.5V to 5.5V
• Works with any PC software, which supports an STK500 compatible programmer
• certain parameters are adjustable through a simple terminal (see Infosheet).
• Size: approx. 41mm x 16mm

Product Documentation

• CrispAVR-USB V2.2 Infosheet
• CrispAVR-USB V1.2 Infosheet

Drivers and Software

USB Teiber

CrispAVR-USB uses an FTDI USB-UART converter for USB connectivity, hence a virtual COM port driver is required. The driver can be used for both CrispAVR-USB V1.2 (with USB mini-B header) and CrispAVR-USB V2.2 (with USB A connector).

• Virtueller COM Port Treiber von FTDI

Software

Ingegrated development environment AVR-Studio for AVR microcontrollers by Atmel.

• Atmel AVR-Studio

Command line tools for STK200 compatible ISP adapters:

• uisp - AVR-In-System Programmer
• AVRDUDE - AVR Downloader/UploaDEr

AVRDUDE is also included in the WinAVR C/C++ compiler toolset, as well as in our Portable_WinAVR distribution.