Tiny PIC bootloader

This is a bootloader for the Microchip PIC micro-controllers.
It is the smallest bootloader, taking less than 100 words of program space;
Supports families of PIC devices: 16F, 18F, dsPIC30 (those devices that support self-programming)
Does not support yet PIC24, dsPIC33, PIC18xxJyy

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, depending on the device type);
• 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;

Tiny PIC bootloader Download
homepage: Tiny PIC bootloader

This project was born because:

1. Some bootloaders I used previously had some unpleasant bugs or didn't support the devices I had.
2. I wanted to do it small.
3. If you wonder how much smaller than this can it get, the answer is 32words :), but it loses from features, reliability and speed.
4. TinyBootloader was build with the idea that all the hard work could be moved to the PC application, while the firmware can implement only the basic functions.