Picloader is a serial bootloader for the PIC16F87x series of microcontrollers from Microchip. The '87x series is the first in the PIC line of parts that can support software write access to the program flash memory. Picloader takes advantage of this, allowing one to send Intel hex binaries through the serial UART to be programmed into the flash without the need for an ICE or in-circuit programmer. This functionality comes with a cost: You must give up the uppermost bank of program storage, or 1 kiloword, plus the first three words of program memory to hook the reset vector. You can download picloader at: http://www.dontronics.com/rfarmer.html

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