Sanguino/bootloaders/optiboot/ATmega1284.md

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To burn the bootloader for the ATmega1284 running at 16MHz use the following command:

make atmega1284p_isp ISPPORT=/dev/tty.usbmodem26411

To burn the 8MHz bootloader use the following command:

make atmega1284p_8m_isp ISPPORT=/dev/tty.usbmodem26411

Also make sure to add -F to ISPFUSES and ISPFLASH in Makefile.isp.