Bootloader

I have this Arduino UNO r3 with the ATmega 328 chip.

The L led is almost on constant, but the TX led keeps, blinking, flickering and goes off.
I have been searching, and it seems like need to burn a new bootloader to my ATmega chip.

I that possible from the arduino IDE or do I need a secondary arduino to do it?
I can only find some stand alone projects, which really, isnt that helpful.

I hope you can help.

VAT234V

I don't know what your problem is, but if you need to get a new chip this should help.

You should be able to put in another ATMEL chip, and burn the bootloader from your computer:

Steps: 1. Carefully remove old chip and replace a new one in same direction 2. Plug the arduino into the computer and open up the IDE 3. Go to Tools > Burn Bootloader and see what happens

This should put the bootloader onto a new chip hopefully.

That sounds like you have a sketch loaded onto the board that's outputting serial data and occasionally blinking the LED? Why do you suspect there is a problem?

Burning bootloader requires external hardware - either another Arduino, or a USBAsp ($2-3 shipped on ebay), or some other ISP programmer (the USBAsp is cheap and good - though there are a number of others)

DrAzzy,i don'tthink so. I can't upload anything to the board, and when i try, i get a new errorcode every time. Thats why i think there is a problem.

So why not post some of those error's?

I've been trying with this very simple sketch:

int LED = 13;

void setup() { pinMode(LED, OUTPUT);

}

void loop() { digitalWrite(LED, HIGH); delay(500); digitalWrite(LED, LOW); delay(500); }

Every one of the listed error, is from trying to upload that sketch:

First try: ┬┤Arduino: 1.6.8 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 1.104 bytes (3%) of program storage space. Maximum is 32.256 bytes. Global variables use 11 bytes (0%) of dynamic memory, leaving 2.037 bytes for local variables. Maximum is 2.048 bytes. avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xfd avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xfd Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

Second try Arduino: 1.6.8 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 1.104 bytes (3%) of program storage space. Maximum is 32.256 bytes. Global variables use 11 bytes (0%) of dynamic memory, leaving 2.037 bytes for local variables. Maximum is 2.048 bytes. avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x4b avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x4b avrdude: ser_send(): write error: sorry no info avail Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

third try Arduino: 1.6.8 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 1.104 bytes (3%) of program storage space. Maximum is 32.256 bytes. Global variables use 11 bytes (0%) of dynamic memory, leaving 2.037 bytes for local variables. Maximum is 2.048 bytes. avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x80 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x80 Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

Every time i try, i get a new type of error.

Any suggestions?