Re: how to burn microcontroller
Basically there are two types of programming modes for microcontroller...
1. ICP/IAP (Inircuit/InApplication Programming)
2. ISP (Insystem Programming)
Every microcontroller manufacturer supports a JTAG (debugger/loader) for loading the program. For this debugging/loading pins will be provided.you can check the datasheet for these pins.
Also you can program the microcontroller using it's serial port. If there are more than one serial ports,You can't use any serial port of microcontroller, you have to check the datasheet which can be used to load.
For this u need a RS-232 to TTL translator like MAX232. Because PC supports RS-232 & your microcontroller generally supports TTL levels. Keep in mind that there can be microcontrollers which support CMOS levels too.
From the PC serial port u have to use Rx,Tx,GND,DTR,RTS pins.