In SX Microcontrollers, SX/B Compiler and SX-Key Tool, mumcs01 wrote:

So I'm shocked i can't find anything discussing this when I searched. I'm using an SX28, and have tied the MCLR to Vdd. (+5). This has worked fine, and I've been programming with the SX-key, which also ties directly to the MCLR on my circuit board. All is well with or without the SX-key plugged in. 

So I read the datasheet on the SX and it says the SX MCLR should be tied to Vdd through a 10K resistor to run. So I did this, and with the SX key plugged in, the SX does nothing, with the SX key removed, the SX runs. Odd? So I need to be able to plug the SX-key and reprogram the device without removing a 10K reisistor. My question is, so how needed is the 10K resisitor, and is there a better way to do this that I'm missing?

Thanks,

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