epilot
Member
Hello,
I have built an AVR programmer to program my ATMEGA16 and ATMEGA32 in C language.
the programmer uses a printer port(D25) and 5 wires which are connected to the microcontroller to programms the AVR.
unfortunately I have to use a 7805 and an external power supply for the microcontroller during the programming time.
I am not familiar with printer port, so can anyone suggest me a pin on the printer port which I could use it as a VCC for the 7805 to omit the external power supply?
thanks for any help
I have built an AVR programmer to program my ATMEGA16 and ATMEGA32 in C language.
the programmer uses a printer port(D25) and 5 wires which are connected to the microcontroller to programms the AVR.
unfortunately I have to use a 7805 and an external power supply for the microcontroller during the programming time.
I am not familiar with printer port, so can anyone suggest me a pin on the printer port which I could use it as a VCC for the 7805 to omit the external power supply?
thanks for any help