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

Guenther:

 

I downloaded the FTDI Drivers from Parallax, and tried installing them, all to the same dismay, the one thing I did not mention is that I did initially instal the latest and greatest SX-USB software, all prior to my installing the SX-USB Key, in any case, each time I try to download a program into the SX, with the 'new' SX-USB Key, I get  "SxKey Error Dialog box" stating "Vpp generation failed" clicking OK gets you a "Download Successful Box" funny since it doesn't work... 

 

The target SX28 is good and so is the Pro Dev Board since I have managed to revive my old SX Key with the DSub 9 Pin connector and when I try to download to the same SX28 it works fine... also I have noticed that when I plug both SX-Keys in simultaneously.. in the Run... Configure area both SX-Keys can be selected, in other words the software is seeing both Keys...

 

The SX-USB comes to temperatures of 162 degrees fahrenheit measured with my Raytek laser temp reader, not something you could honestly hold comfortably in your hand....  the hottest part of it appears to what looks like a small coil that is near center of board towards the left hand side, with the USB port facing upwards, also this is with the USB-SX Key not connected to anything, except the computer USB port... No possibility of external shorts since it does this when it disconnected as well as connected to my Pro Dev Board....


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