Sunday, September 13, 2009

GoodFET Firmware Distribution

by Travis Goodspeed <travis at>

Until recently, the GoodFET firmware was available only by source code through subversion. While I still expect all GoodFET users to be familiar with C, Unix, Subversion, and other such things, it is a bit much to ask each user to build the MSP430 cross compiler just to use the device. To that end, I'm implementing an automated testing server and firmware distribution system. The latest firmware images are now available by HTTP, free for any client to download and test. This article describes an early incarnation of this system.

To test each target, I've begun to fill a server in Philadelphia with GoodFET boards. Ideally, I'd like one of each GoodFET model matched to one of each target, but that collection has not yet been completed. In this screenshot below, the Chipcon and SPI Flash targets are being tested.

GoodFET Testing Server

If the output contains anything different, the diff will show this and require manual intervention before an update may be published. These differences might be caused by a failed test, or they might be caused by a minor change, such as the amount of reported RAM consumption in the following screenshot.
Failing GoodFET Test

To distribute these files, the Makefile in /packaging/ checks out a fresh copy of the code from subversion, builds and installs it to all attached boards, runs every available test case, and compares the results. If--any only if--all test cases match, the resulting intel hex files will be uploaded to Clients may fetch these to update the targets, and I've added the "goodfet.bsl" client--a fork of tos-bsl-- to facilitate this upgrades.


Loadable modules will come next, along with some substantial changes to the GoodFET packet format that will allow for much larger blocks. I also hope to soon revamp MSP430 JTAG support, with support for quickly flashing 1xx and 5xx devices, as well as support for MSP430X (1xx and 4xx) devices.

As a final note, be sure to update your clients as well as your firmware. The packet format changes and other alterations might break compatibility of the new firmware with the old clients.


Unknown said...

Hi Travis,
I´m from Brazil and here a TI MSP430USB-FET is very expansive (U$200.00) and I found your GOODFET. Does GOODFET works in IAR WORKBENCH?

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Jim Rhodes said...

I need more info about this firmware. Can you add it here, please? Thanks!

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