Thanks Jan, The toggle rate is quite good but the downside of using software controlled IO is that at least 1 core is 100% occupied. For things that don't need the full rate and can be block processed it would do.
MK
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Thanks for the suggestion. My problem isn't in getting the FPGA to jump through the hoops but in getting the PI or similar Linux running platform to transfer data to it. The Xmos parts could (sometimes) replace the FPGA but not the Linux end.
MK
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100 mega bytes per second is quite feasible locally (on board) with // 8 bit bus - I've had less trouble getting 1Gbit ethernet PHYs to talk to FPGAs using // connections than serial.
The great thing about the Zynq is that the // interface is on chip rather than on board so almost easy. The downside is that an RPi is so much cheaper.
An RPI with a free PCie port and OS support - that would be nice.
MK
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Exactly so. xCORE/xC are unique and in an interesting niche, but like all other technologies they are not The General Solution.
But it is fun trying to (and succeeding) in mixing-and-matching technologies to work around each's limitations :)
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