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

(I have also tried this with a 10K resistor from pin 28 to Vcc instead, with the same results)

-- you *must* use 10k to tie the /MCLR high, not a straight connection to Vdd.

-- suggest tying pin 1 (RTCC in) to 5v also

-- you are using the USB Key? If so, other then the two items above, your setup looks OK

Vpp generation failure and/or failure to connect can sometimes be due to dirty connections. Have you tried using the DEVICE window to READ the chip rather than programming? This will at least let you test your setup before programming (and possible failures).

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