need a usb programer circuit

i need a circuit design for a pic 16f84 using usb port programmer ciruit can any one send it to me.

design ur self .


note: possibly difficult to do with f84.and y u want that?

Search the MicroChip website for 'PICKIT1' - it's a USB programmer, but I don't know if it supports the long obselete 16F84?.

You might also try DIY Electronics in Hong Kong, they have a range of USB/Serial programmers - the circuits can be downloaded, as can the software, or you can buy a ready done kit!.

You should bear in mind that any USB programmer will almost certainly require you to have a programmed PIC - so you already need a PIC programmer to build one!.