Any one have worked on atmega64a, atmega128a or atmega2561 ? My question is how to download program using USB ASP programmer? Do I have to use pin 2, 3 as miso, mosi ? What is the role of pin 1 ( PEN) ?
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Any one have worked on atmega64a, atmega128a or atmega2561 ? My question is how to download program using USB ASP programmer? Do I have to use pin 2, 3 as miso, mosi ? What is the role of pin 1 ( PEN) ?
To program ATmega64A, ATmega128A, or ATmega2561 using a USB ASP programmer, you need to connect the following ISP pins:
MISO (Master In Slave Out): Pin 2
MOSI (Master Out Slave In): Pin 3
SCK (Serial Clock): Pin 4
RESET: Pin 1 (Connect to programmer’s reset pin for programming)
PEN (Programming Enable) is not necessary for ISP programming. It is mainly used for High-Voltage Programming in some cases.
Ensure proper connections and fuse settings for successful programming.