ftdi

flashrom 0.9.2 released -- Open-Source, crossplatform BIOS / EEPROM / flash chip programmer

The long-pending 0.9.2 version of the open-source, cross-platform, commandline flashrom utility has been released.

From the announce:

New major user-visible features:
* Dozens of newly supported mainboards, chipsets and flash chips.
* Support for Dr. Kaiser PC-Waechter PCI devices (FPGA variant).
* Support for flashing SPI chips with the Bus Pirate.
* Support for the Dediprog SF100 external programmer.
* Selective blockwise erase for all flash chips.
* Automatic chip unlocking.
* Support for each programmer can be selected at compile time.
* Generic detection for unknown flash chips.
* Common mainboard features are now detected automatically.
* Mainboard matching via DMI strings.
* Laptop detection which triggers safety measures.
* Test flags for all part of flashrom operation.
* Windows support for USB-based and serial-based programmers.
* NetBSD support.
* DOS support.
* Slightly changed command line invocation. Please see the man page for details.

Experimental new features:
* Support for some NVIDIA graphics cards.
* Chip test pattern generation.
* Bit-banging SPI infrastructure.
* Nvidia MCP6*/MCP7* chipset detection.
* Support for Highpoint ATA/RAID controllers.

Infrastructural improvements and fixes:
* Lots of cleanups.
* Various bugfixes and workarounds for broken third-party software.
* Better error messages.
* Reliability fixes.
* Adjustable severity level for messages.
* Programmer-specific chip size limitation warnings.
* Multiple builtin frontends for flashrom are now possible.
* Increased strictness in board matching.
* Extensive selfchecks on startup to protect against miscompilation.
* Better timing precision for touchy flash chips.
* Do not rely on Linux kernel bugs for mapping memory.
* Improved documentation.
* Split frontend and backend functionality.
* Print runtime and build environment information.

The list of supported OSes and architectures is slowly getting longer, e.g. these have been tested: Linux, FreeBSD, NetBSD, DragonFly BSD, Nexenta, Solaris and Mac OS X. There's partial support for DOS (no USB/serial flashers) and Windows (no PCI flashers). Initial (partial) PowerPC and MIPS support has been merged, ARM support and other upcoming.

Also, the list of external (non-mainboard) programmers increases, e.g. there is support for NICs (3COM, Realtek, SMC, others upcoming), SATA/IDE cards from Silicon Image and Highpoint, some NVIDIA cards, and various USB- or parallelport- or serialport- programmers such as the Busirate, Dediprog SF100, FT2232-based SPI programmers and more.

More details at flashrom.org and in the list of supported chips, chipsets, baords, and programmers.

I uploaded an svn version slightly more recent than 0.9.2 to Debian unstable, which should reach Debian testing (and Ubuntu I guess) soonish.

A simple DLP-USB1232H based JTAG programmer with OpenOCD support

DLP-USB1232H and OpenOCD based JTAG adapter

Here's a quick introduction to using a cheap FTDI FT2232H based module (left-hand side on the photo) as a JTAG programmer together with the OpenOCD JTAG software for ARM and MIPS devices. The module I am using for thіs purpose is a DLP Design DLP-USB1232H, which is available from various sources (Digikey, Mouser, Saelig, and probably others) for 20-30 bucks plus shipping, depending on where you live.

By properly connecting the correct pins of the DLP-USB1232H to the target JTAG
device (I used an Olimex STM32-H103 eval board for testing) you can easily abuse the DLP-USB1232H as JTAG programmer. As I chose the proper DLP-USB1232H GPIOs for the TRST and (S)RST pins, OpenOCD even worked out of the box, without having to change a single line of code.

The only thing that's required is to provide OpenOCD with an interface config file that uses the usbjtag "layout". I have already submitted that config file upstream, I guess it should be merged soonish.

The usage is then pretty simple:

  $ openocd -f interface/dlp-usb1232h.cfg -f board/olimex_stm32_h103.cfg

And in another xterm:

  $ telnet localhost 4444
  > init
  > reset halt
  > flash write_image erase fancyblink.bin 0x08000000
  > reset

This flashes the given fancyblink.bin image onto the STM32-H103 eval board via the DLP-USB1232H JTAG programmer, where fancyblink.bin is an example program from my libopenstm32 project (that aims to create a full-blown firmware library for ST STM32 microcontrollers, similar to what avr-libc does for AVRs). Contributions for libopenstm32 (license is GPLv3 or later) are highly welcome btw., hint hint...

  $ git clone git://libopenstm32.git.sourceforge.net/gitroot/libopenstm32/libopenstm32

Full schematics, datasheets, and detailed instructions for the JTAG programmer are available from a small page I created in my Random Projects wiki, which is intended for the various smaller projects I'm working on that don't warrant getting their own domain, wiki, etc:

The Random Projects wiki is open-for-all btw, feel free to use it for any freeish, software or hardware projects of your own if you want.

Anyway, the DLP-USB1232H is a really nice device as it can also be used for many other purposes, such as USB-to-Serial or SPI BIOS chip programming, but more on that in another blog post...

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