PIC18F452-BL is a PIC microcontroller with bootloader for FLASH LAB. PIC series of microcontrollers have the ability to write to their own program memory, without the need of a hardware programmer. A small piece of software (normally called a bootloader or loader) resides on the target microcontroller, which allows user code and EEPROM data to be transmitted over a serial cable and written to the device. The loader application is the software which resides on the computer. Together, these two components enable a user to program, verify and read their program and EEPROM data all in circuit. The bootloader software resides in upper program memory, with the rest of the microcontroller code space being available for user program.
