In SX Microcontrollers, SX/B Compiler and SX-Key Tool, william wrote:

Maybe you are right, the next board design I might try that, b'cos some board design usually works well, some other designs I definitely have to use SXKey rev F.
But I am also sure that there are significant differences between SX Key Rev. E and SKKey Rev. F which nobody will admit to.

About current consumption, sometimes when I plug in any SXkey with power already on, it can go into a latchup mode, taking 3 times more current than usual.
I can see the LED on the power rail go dimmed when that happens. ( 7 percent of the time )
In this mode, it cannot program anything.  I have to quickly cut the power, wait a while and then power on again.

But overall, the SXKey is well designed and robust b'cos it never dies no matter how you abuse it.  

 :cool:

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