Arduino as a ISP and fuse.

Using Arduino Installation & Troubleshooting
#1

Hello

I am using an Arduino UNO as "Arduino as a ISP" to programs some ATMEGA328P TQFP on a PCB.

It works fine, except fuses. The drive only 1MHz.
If I programs another Arduino UNO in this way works fine.

#2

See this, it might help.

#3

redmm:
It works fine, except fuses.

The fuses only get set when you do Burn Bootloader, not when you upload a sketch. That's why you have to "Burn Bootloader" on an ATtiny even though they don't support a bootloader.

#4

Thank you.
It works to burn bootloader.

#5

When I upload a new program, in this way, the eeprom is deleted.
Can I avoid this?

#6

Hi,

I'm new to all this and have an 'Arduino Nano' from China.
The FTDI driver has bricked because it's a counterfeit.
Can someone please tell me I will be able to program succesfully using a second (genuine) Arduino.

Thanks in advance for any help.

#7

@redmm,
Bit 3 in the High Fuse byte determines whether EEPROM is saved or not.
Check its value in boards.txt, flip it if needed, and reburn the bootloader.

@Yorrite,
Do a little searching, a fix to the FTDI chip problem has been posted in numerous places here it the forum.

#8

CrossRoads many thanks for your help.
It works.

Merry Christmas

#9