Add bootloader to Mega328 using Uno R3

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mofungo
 
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Add bootloader to Mega328 using Uno R3

Post by mofungo »

Have a Uno R3 and was given a ATmega328 without bootloader, Can you tell me if I can add a Bootloader if I remove the original (328/withbootloader) from the R3 board and install no bootloader chip into board. I see it can be done with some work, but looking for easy way out.
Thank You

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westfw
 
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Re: Add bootloader to Mega328 using Uno R3

Post by westfw »

Installing a completely blank chip into an otherwise working Arduino does NOT make it easier to program a bootloader into the new chip. Assuming you don't have some other "hardware programmer" (like an Adafruit USBTinyISP), you're better off using the breadboard technique that so many people are having problems with.

If you DO have a separate hw programmer (even a second arduino), putting the blank chip into an Arduino board may be useful because it provides known-working clock circuitry, power wiring, reset switch, and an industry-standard programming connector. But you need that second programmer device...

JD3
 
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Re: Add bootloader to Mega328 using Uno R3

Post by JD3 »

Or spend $17.50 on an AVR programming shield
http://www.adafruit.com/products/462

It works great, burned bootloaders quite a few times
Solder shield, program arduino, select arduino as ISP, burn baby burn!!

73 - JD3

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mofungo
 
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Re: Add bootloader to Mega328 using Uno R3

Post by mofungo »

Thanks JD3, I ordered the shield, seems very easy to do what I have to do.
They owe you a commission.

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