Can't enter Programming Mode Atmel Studio

Question

I have a custom board based on the ATmega328. I want to program it usign Atmel ICE Basic ISP interface, to make sure that I'm connected to the target I've tried to read it ID, I get the following : enter image description here

Since uC isn't programmed before, and I'm using only Atmel Stuff to that I don't know where the problem is, and how may solve it. the uC is not wired to anything beside the Pull-up resistor and the and a capacitor as followed :

enter image description here

any idea how may solve this ?

thanks in advance !

Update

uC schematic

enter image description here

the programer is connected to the SPI

• Wesley Lee: Atmel ICE does not provide power to the MCU, you have to power it externally. The Vcc pin only serves to read target voltage. How are you powering your Atmega?
• Engine: yes I did I've tried 3.3V which I need and 5V too, but didn't made a difference !
• Wesley Lee: Then I guess its time to post the full schematic and pics of what you assembled. P.s.: I think the DTR cap has to be in the order of 100nF, not 100pF.
• Engine: I can do it but I havn't soldered anything beside the RESET stuff
• Wesley Lee: Maybe check if your RST button is in the right orientation and not pulling RST to GND? Can't do much more than guess with the info given.

Answer 1

I think the pull-up resistor to your reset pin is connected on the wrong side of the DTR capacitor.

You'd probably want to connect it as below, although I didn't know about DTR until now...

enter image description here

• Douwe66: no problem, i've experience many similar problems when using avrs. Good luck with your circuit ;)
• Douwe66: Made a quick correction to the circuit, the reset switch also needs to be on the side of the reset pin (if you want to be able to use it).