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I have been using the PSoC5 for some CNC motion control applications. I was using the CY8CKIT-059 and was having trouble with some pins not working for stepper motor step generation. When looking at the schematic I saw that P0_2, P0_3,P0_4, and P3_2 have 1.0uF capacitors. See the attached schematic snippet.
I think those capacitors are killing my short (a few usecs) step pulses. I will probably remove the caps. I was wondering how much capacitance the I/O can handle before it is damaged. I could not find the spec in the datasheet.
BTW: If you are interested in CNC motion control on PSoC see my blog post.