Sudden problem with MCLR on PIC16F628 - Page 2 - Electronic Circuits Projects Diagrams Free

Futterama · 15th October 2005, 02:47 PM

I didn't make the software used for programming (David Tait's FPP Flash PIC Programmer) so I don't know. The hardware only controls Vpp, data and clock. Vdd is applied at all times.

**Nigel Goodwin** · 15th October 2005, 03:04 PM

Quote:

Originally Posted by Futterama

I didn't make the software used for programming (David Tait's FPP Flash PIC Programmer) so I don't know. The hardware only controls Vpp, data and clock. Vdd is applied at all times.

That's because it's an ICSP (In Circuit Serial programmer), as such it can pull MCLR (Vpp) down low to reset the PIC - normal (non-ICSP) don't usually have this capability.

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15th October 2005, 02:47 PM	(permalink)
Futterama	I didn't make the software used for programming (David Tait's FPP Flash PIC Programmer) so I don't know. The hardware only controls Vpp, data and clock. Vdd is applied at all times.