On 02/06/2013 06:51 AM, EBo wrote: > > What are the max switching speed of both PRU and GPIO pins? > > GPIO driven by bit-banging from the ARM processor is approximately 240 ns, and it apparently holds the CPU in a wait state until the operation is performed by the GPIO multiplexer. So, you can toggle a pin at slightly over 2 MHz. This measurement is from the BeagleBoard, but should be similar to the Bone's performance. The direct pins on the PRU (not available on the BeagleBoard) are supposed to be lots faster, but I have not moved to the Bone, yet.
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