My shield interrupts transferring software to uno

[zaleopard]

I did such shield and I try to run "arduino as isp" to uno, shield was installed but without zero.

i'm quite sure I could keep that shield at top of it and program uno same time (without zero)...Right? ...I hope

I pinpoint error in +5V line, but its not connected anywhere of IO pins.
then I noticed if I put other shield below this one, it works normally.

Shield between doesn't have pins next to 3.3V (reset and ioREF).

Then I check my shield against those 2 pins and those pins are not connected anywhere, I have no idea what causes software transfer interrupts

and why it works if those pins are disconnected

Idea was to do zero programming shield:

Edit 16.6 I check all pins again, non of them was shorted... but got bored and bought programmer for ATMEGA328... if I can get barebone atmega working even somehow, im happy ^^

[maxwilko91]

Have you got any pins connect to TX & RX? if so you won't be able to upload your sketch to the arduino. These pins must be disconnected when uploading the code. If I have understood your problem correctly.

[zaleopard]

no, they were open, only gnd/vcc, and 10-13 were connected to shield, and it was without nano, so all should be floating :o

im sure I did some weird error that I just didnt see.

[maxwilko91]

I know this sounds remedial and you've probably tried this but I also get the avrdude error when I haven't selected the right COM port or I haven't selected the correct arduino type. Try unplugging and plugging in again aswell.

[zaleopard]

Yeah, I did, a lot
and I was just programming uno as "arduinoISP" in a arduino IDE.

I was able to program it without shield, but if I had shield on (as empty, without zero), it failed. It was just weird, couldn't find anything that would interrupt.

and that make me think if proframming zero failed because of that.