I am trouble uploading sketches and communicating with standalone ATmega328 using CP2102 USB-Serial Converter module (from China). The Pin Configuration is :
Atmega328 has 16Mhz Crystal with a pair of 22pf attached as standard.
I have tried different combinations but all failed .. Following is the result: avrdude: stk500_getsync(): not in sync: resp=0x00
the Arduino IDE is set to :
Board: Arduino Nano / 328
Programmer: AVRIsp mkll
Atmega328 was loaded with Boardloader earlier and a blink sketch was uploaded using ArduinoISP method given on Arduino's Website. With normal power, the Pin 13 blinks Led normally. But new sketch is not getting through.
Atmega328 was loaded with Boardloader earlier and a blink sketch was uploaded using ArduinoISP method given on Arduino's Website. With normal power, the Pin 13 blinks Led normally. But new sketch is not getting through.
Please help ...
If you used 'Upload via Programmer' AFTER burning your bootloader then you will have overwritten the bootloader.
You need to burn the bootloader again and then load your sketch using the normal serial method with your CP2102.
At the moment you are getting the error because there is no bootloader to accept the serial upload.
10k pull up resistor is added. Sorry I forgot to mention.
I bought Atmega328 without bootloader and burnt it using the method described on the arduino website. And uploaded the blink sketch in it and it works very well. I am wondering how come the bootloader is corrupt ?
The bootloader isn't 'corrupt'; it is non-existent.
You burnt the bootloader correctly but then you uploaded a sketch using ICSP, rather than serial. The act of uploading via ICSP wiped the bootloader that you had just installed.
Once you have the bootloader burnt then ONLY upload sketches via serial. If you upload via ICSP 'Upload using Programmer' at any time then you will overwrite the bootloader.
Sketch uses 928 bytes (3%) of program storage space. Maximum is 30720 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
nevermind, I got it to work... Not sure what I've done different this time, but I just put everything away for a while, came back and rebuilt and it worked.
i had the same problem.i had a atmega328p and a cp2102 with dtr pin.i tried different ways.after spend of 3 days i found the solution.
after burn bootloader to raw atmega328p with arduino as isp or usbasp you must choose only arduino pro or pro mini as your board in tools menu and one of the avr isp or arduino as isp or avr isp mkll as programmer.and then upload your sketch.that's it.