[AVR] Bootloader for atmega32A

[b.heuju]

I want a precompiled atmega32A bootloader. I searched the internet but could not find any helpful tutorial for avr bootloader. I want to preprogram the bootloader with any hardware programmer (my friend has one) in my atmega32A and then later use rs232 (using usb to serial converter) with max232 to program it without any need from my friend/ any other programmer.

Any precompiled hex file for the bootloader for atmega32A would be helpful. Also some information on how to program using bootloader could be helpful.

I plan to use the bootloader to program and learn the basics of AVR first. Then later will buy my own programmer and learn the advance.

 

[PA3040]

change txt to .hex

I am using CP210x USB-to-UART Setup

 

[b.heuju]

I am using CP210x USB-to-UART Setup

I now have your hex file. After I burn it what should I do to program my chip? And what about those fuse bits? How should I set it up? I have a usb to rs232 cable. It would be helpful if you can elaborate the process a bit.

Thank You

 

[PA3040]

First read fuse bit and post

 

[b.heuju]

Read fuse bit

Here is something I learned. Tell me if i get something wrong:
1. Use avrdude (most probably) to set the low and high fuse bits (0xFF and 0x98 in this case)
2. Program the bootloader hex code to the avr

Now all i need to do is get the bootloader to run and program my actual program.
How do i do this? Is there any procedure to follow? And what freq. crystal can I use?

Sorry for causing trouble.

Regards...

 

[PA3040]

With boot loader you can program mcu without programmer ( USB development board )

see
**broken link removed**

if you have programmer then you can program your hex file developed by your source code