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Programm PIC18F4520 via I2c/SPI/USART

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flote21

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Hello,

My question is if there is any posibility to programm this pic controller using one of these comm protocols. Because I want to program the pic using a FPGA. I mean the FPGA is going to be programmed viy ethernet and then the FPGA is going to programm the PIC controller. How can I do that?

thanks
 


Perfect this was exactly what I was looking for. But I need to know how to make the implementation of the tiny bootloader program into a FPGA....Maybe there was some vhdl code alredy done in the net...

Thanks anyway!

wp100 said:
Hi,

Would think, though have never tried them, using the USART to send the program code to a Bootloader in the 4520.
http://ww1.microchip.com/downloads/en/AppNotes/00851b.pdf
http://www.etc.ugal.ro/cchiculita/software/picbootloader.htm

There are I2c and SPI bootloaders but they are not a popular as the Usart based ones.
http://ww1.microchip.com/downloads/en/AppNotes/01302A.pdf
Click to expand...
 

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