ftisp - A USB-to-ISP Programmer Utility

What is 'ftisp':

Ftisp is utility program that allows direct ISP programming of AVR processors via a USB connection. No bootloader needed.
Ftisp uses the fast synchronous bit-bang features found in the FT2232 and FT232R USB interface chips from FTDI (www.ftidchip.com).

Ftisp v1 is the original version which allows chip erase, flash read/write, eeprom read/write.
Ftisp v2 has added features including multiple-command support, verify commands, fuse bit and lock bit read/write.
Note: ftispv2 uses a different command-line syntax. Run ftispv2 to see command help.

Download:

Platform:	Win32	Linux	Mac OSX
ftisp v1:	[Download]	[Download]	[Download]
ftisp v2:	[Download]	[Download]	[Download]

How to Install:

1. Download ftisp for your platform
2. Install FTDI USB driver
   
   Get drivers and installation instructions at: www.ftidchip.com
   • For Windows systems use the V2.xx.xx (CDM) driver
   • For other systems, use the D2XX driver
3. Connect any cabling or set any configuration jumpers required by your hardware (see Supported Hardware)
4. Open a command prompt and run ftisp. Command line syntax will be printed.

Supported Hardware:

• AVRminiV4.0 - AVR development board with USB, Ethernet, and SD-card slot
  • AVRminiV4.0 board must be connected to PC via USB.
  • Pins 13&15 of USB I/O header must be connected with a shorting block.
• FTDImicro - FTDI USB interface dongle (UART, ISP, JTAG support)
  • Connect your FTDImicro to your AVR board using the 10-pin ISP connector
• FTDImod - FTDI USB-to-Serial interface module (Serial DB9, ISP, JTAG support)
  • Connect your FTDImod to your AVR board using the 10-pin ISP connector

FAQ:

• Q: How long does ftisp take to program an AVR processor?
  A: This depends on the size of the program you are loading, but in general ftisp programs 16KB in about 10 seconds.
  
• Q: How do it set/clear fuse bits and lock bits?
  A: The ftisp version 1 doesn't support fuse and lock bits. Ftisp version 2 is already being tested and supports fuse bits, lock bits, and variable bitrate programming.
  
• Q: Ftisp hangs when I go to program my AVR's flash. What's wrong?
  A: If the ftisp hangs at the beginning of flash programming, this is probably because the flash memory is has not been erased. You must run an erase command before writing flash.