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About isp /spi programing

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Dilpreet Singh

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Will SPI need any program written in flash memory of MCU's so to transfer new program into flash memory ,or it works using hardware of MCU automatically ?
 

If you are talking about ATMEGA then answer is NO. It does not need any program inside. It is hardware.
I'm sure that this protocol can use other MCUs too, like PIC or similar.
 
so if i have spi harware programer and brand new atmega chip i can burn program in mcu ?
 

Sure, without problems.
All AVR atmega programers have SPI (ISP) feature.
 

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