An Open Source Hardware Development Tool

LuxuryYacht writes "The PLAICE is an open source hardware and software project developing a powerful in-circuit development tool that combines in one device the features of a FLASH Programmer, Memory Emulator, and High Speed Multi-Channel Logic Analyzer. It runs uClinux. The logic analyzer features up to 200MHz sampling rates and up to 32 input channels. The logic analyzer Java client supports up to 200MHz sampling rates, user-controlled filtering operations, time line in diagrams, transfer rates, and user configurable drawing modes. The Java client supports access via almost any PC with a serial port and uses the RXTX serial library with support for 34 platforms including Linux, Windows, and Solaris. Java client plugins include an SPI and I2C bus protocol analyzer, conversion of timing analysis to state analysis, and post-processing functions."

Re:That's nice

[tftp]

Since when? Well, for some designs (like yours) they are still useful, and I am glad that there is still someone out there who knows which end of the soldering iron to hold onto.

But in an industrial setting they are quickly replaced by JTAG-connected tools; ChipScope [xilinx.com] in particular (if you are a Xilinx slave) is great because it captures the signals into the local, very fast RAM, and then sends you the snapshot over a slower JTAG connection. The snapshot is true to what is really happening, and if you design a DDR controller (or faster) then just forget the external wires, they are useless at those speeds. And most of modern commercial designs push the devices to the limit. That's what makes standalone logic analyzers less appealing to a mass manufacturer. Logic analyzers in such conditions become tools of last resort, just like ICEs, where you have to spend a day just preparing your board for testing.

Myself, if I do not have an FPGA in between (and so ChipScope is not an option) then I just use an oscilloscope. I have a 4-channel, inexpensive Infiniium model, and 3 probes is the most I ever needed; staring at the schematic does the rest :-)

Re:Huh...

[Square Snow Man]

That you are going to be used to make this software populair, so they can start making money of it in the future (think MySQL).