If no connection is detected, the execution is passed to the code of your sketch. It's 512 bytes in size and sits in an area of "memory" within the 328P microprocessor chip.īelieve it or not, there's actually not a lot to an Arduino board and you can simply buy an ATmega328P microprocessor chip and flush a bootloader to it if you wish! The Arduino system is mainly about the supporting boards that hold the processor chips, the processor chips on the boards are, well, cheap as chips!Ī special piece of code that is executed at every reset of the microcontroller and that looks for a sketch to be uploaded from the serial/USB port using a specific protocol and speed. The Arduino bootloader is a small piece of code, as the name suggests, that allows the compiled sketch code to be installed and started. Sounds like a serious issue but not at all, the designers of the Arduino system thought about this. Turns out cheaper non-genunine Arduino boards are sometimes shipped without bootloaders. I recently obtained an Arduino Nano unit from my Dad ( he's 82 and loves playing with gadgets and electronics! ) and decided to have a play with it but I found it wouldn't take a sketch, it refused to accept the upload of sketch code. How to flash the Aruduino Nano bootloader and what to do if it doesn't work.
Arduino Bootloader - How-To (Re)Install the Aruduino Nano Bootloader
0 kommentar(er)
