Unable to program my avr microcontroller

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adityaheroes

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Hi! i am unable to program my atmega64L even after checking and verifying all the SPI connections. I use codevisionAVR for programming and sinaprog and khazama for loading the program. The serial programmer which i use is able to program my ATmega32 without any error but as soon as i try programming atmega64.. it just doesn't. The error i get is initialization failed and rc = -1 etc., Can anyone help me? Ineed a solution asap as i am running out of time. Thank you.
 

If anything apart from the programmer connected to MISO, MOSI, SCK ?

Can it be a clocking problem , try reducing the ISP speed of the programmer if possible
 

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