PIC FLASHER BOARD -16F873A Bootloader
BOOTLOADER BASED FLASHER

AIM : Low Caost PIC Development Tool Kit

Purpose : This BootLoader Based Programmers is Very Usefull for Educational / Learners Purpose Only A Brief About Bootloader !

A bootloader is a program that stays in the microcontroller and communicates with the PC (usually through the serial interface). The bootloader receives a user program from the PC and writes it in the flash memory, then launches this program in execution. Bootloaders can only be used with those microcontrollers that can write their flash memory through software. The bootloader itself must be written into the flash memory with an external programmer. In order for the bootloader to be launched after each reset, a "goto bootloader" instruction must exist somewhere in the first 4 instructions; There are two types of bootloaders, some that require that the user reallocate his code and others that by themselves reallocate the first 4 instructions of the user program to another location and execute them when the bootloader exits.

Features of the firmware

Size of only 100 words; (all versions, for 16F,18F,dsPIC occupy less than 100 words);
Can write flash, eeprom and configuration bytes(18F);
On reset, waits 1 second (adjustable) for a message from the PC, if not received, launch user application;
The .asm file can be easily modified and adapted for any frequency (or baudrate);

Features of the PC software

Can upload programs into flash (in current version
eeprom and cfg bytes can be modified only manually,
Works with PIC16F,PIC18F and dsPIC types;
automatically detects HEX content and PIC model;
Remembers last settings;
In case of errors, performs retransmissions
or tries to resynchronize with pic;
The communication settings are editable
so you can write any COM number or desired baud;
If a filename is specified as a command line
parameter, it will automatically try to write it;

OUR KIT INCLUDES

PIC FLASHER BOARD
16F873A WITH BOOTLOADER PROGRAMMED
CD SOFTWARES