On Mon, Sep 28, 2009 at 5:14 PM, David Brownell <davi...@pacbell.net> wrote:
> On Monday 28 September 2009, Brian Hutchinson wrote: > > Hi, > > > > Amontec's site says the JTAGkey can do this but to contact them for > > details. Anyone using this device for I2C/SPI monitoring and have "the > > details" on how to do this in Linux? > > The "details" would be in the FT2232 appnote saying how to > use all the various MPSSE modes ... use jumpers to hook up > GND and your board's VCC to set the level right, then either > SCL/SDA (for I2C) or the relevant pins for SPI (presumably > the obvious association to the JTAG pins, TMS==CS0), and > program as you will. Nothing should be very specific to > the Amontec. > > I'd hope the FT2232 handles I2C details like using open > drain drivers to support clock stretching and arbitration. > > - Dave > Thanks Dave, I figured you would know :) I see several I2C monitor/analyzer projects out there ... I haven't seen any that mention the JTAGkey specifically. Just thought I'd ask if anyone is familiar with projects that work or may work with the JTAGkey .... don't want to re-invent the wheel if there is something close I can start with to get going. Regards, Brian
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