PIC Strawberry is basic 8 bit PIC...
PIC Strawberry is basic 8 bit PIC microcontroller board with basic circuitry and functionality. The board can be used with a variety of add-on modules or your custom projects. It has USB connector that can be used to program the PIC18F4550 microcontroller or develop USB based applications that can act as USB slave devices. All I-O Lines along with 5vpower supply are available through conveniently located and labeled headers.
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Normally microcontrollers need an external hardware to transfer the application software (.hex file) from PC. PIC18F4550 has builtin USB module. We can first burn a small piece of software using a standard programmer into the chip. Then on every reboot, the controller first communicates over USB to its client program on PC, if the Connect button on client program is pressed within 15 seconds the controller gets into Re-programming mode, the client program takes new .hex file of your application and transfers it to the controller. The bootloader program inside the controller takes the new .hex file and writes it into the flash program memory. The control is then handed over to your application program and boot loader quits.
This is a convenient way of developing applications, as you just need USB connection with your Laptop and reprogram the board.
Since bootloader itself is a program, in case you accidently delete this, you can always put it back in your controller.
We use Mikroelectronica (www.mikroe.com) Bootloader with its client. The client program can be used as standalone application and you can burn the .hex file produced by any compiler like proton Basic, CCS, Hitech C ormikroelectronica compilers.
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