Problem: FTDI - Atmega328P-PU - Arduino Bootloader Duemilanove w/ Atmega 328

Development Tools IDE 1.x
1

Hi guys,

I'm working on a breadboard chip. Uploading the bootloader for a Duemilanove A328 was no problem via ICSP also Sketches are no Problem to upload.

But with an FTDI 5V Cable or the 5V FTDI Module from Sparkun it doesn't work. I only get the message stk500_getsync(): not in sync: resp=0x00

Reseting seems to work the LED on 13 is blinking and while the program is trying to upload blinking is stopped.

Any help is appreciated

Thank you so much
toonlumberjack

2

push reset quick just as you see the IDE finished compiling and start 'upload'..
Your timing can make a difference

3

Or press & hold, release when you see "Compiled xxx of 32xxx bytes".
Can be easier to find the right time to release if select File:Preferences and Verbose outputs is selected.

4

Wait, wait, wait, guys!!!

If I understand you correct the reseting via FTDI Cable / Sparkfun adapter won't work !?!? Are you sure this is a handjob? Can one of you explain why the FTDI-Reset will fail?

So also did the things you suggested before (and not only one time), but nothing works. Stilll think it's a driver issue, but cant work that out, too.

Also to avoid contacterrors i switched from breadboard and sooldered it together........

Reading the Posts on the web and this forum brings me back to the drivers.....#

We'll see. I'm not giving up yet
toonlumberjack

5

I understand this as a single 328P with bootloader installed.
Then connect 4 lines: RX/TX/GND/Vcc , use the procedure already suggested.
In IDE - 328 mini ? (uncertain..) - then upload

6

Is not clear from what you've described that DTR on the FTDI side is connected to a 0.1uF cap to Reset on the '328, which is pulled high with a 10K resistor. Manual reset would resolve that.

What board type is the 328P bootloaded with? I program all mine as Uno. I build them all with 16 MHz xtals and 22 pf caps. They all get 0.1uF cap to a DTR input from a Serial/USb adapter (I use FTDI based modules generally).
What board type are you selecting in the IDE?

7

CrossRoads:
Is not clear from what you've described that DTR on the FTDI side is connected to a 0.1uF cap to Reset on the '328, which is pulled high with a 10K resistor.

Sorry! My Fault! Did both ways. Direct connection and the 0.1uF Version.

What board type is the 328P bootloaded with? I program all mine as Uno. I build them all with 16 MHz xtals and 22 pf caps.

Did it with UNO and the 328 duemilanove bootloader. And yes 16MHz and 22pF.

They all get 0.1uF cap to a DTR input from a Serial/USb adapter (I use FTDI based modules generally).

Who is they? Other way round: Can't imagine the circuit.

What board type are you selecting in the IDE?

Depends on bootloader, doesn't it? So UNO or Duemilanove 328

Thanks for the reply