I am using jdm programmers, from the website settings, it says i should switch to direct I/O instead of windows API. But however when on Direct I/O there is no voltage change on my serial port. But there is on windows API. Regardless both settings i am unable to program my pic (000h fail)
the problem is that an NT based OS all code runs in RING 3, this means when the CPU comes to try and use an OUT instruction with an address like the parrallel port it can't access it.
There are ways of getting round this, some ways better than others.
see beyondlogic's parrallel section www.beyondlogic.org
im also getting the same prob im trying to do a 12c508a and i tryed all dif ports serial and com. and i tryed everything for xp and i know i built it right just wondering is there other window based software to use with jdm?