Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Can someone tell me how USB programmers like Pickit 2 work. I mean they are only powered from the USB port +5v. How do they put the pic in prog.mode 13v on MCLR ?
Can someone tell me how USB programmers like Pickit 2 work. I mean they are only powered from the USB port +5v. How do they put the pic in prog.mode 13v on MCLR ?
They have a processor on board which does the actual programming, the USB is used to just transfer the data. The Vpp voltage is generated using a switch-mode system, usually direct from the on-board PIC.
Check the PICKIT2 circuit, or Bill's Junebug clone.
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