Auto alimentation

[OABBA1]

Hello,

I'm working in a project using CPLD, I'm using quartus 15, and USB blaster to program the device. 

My question is if I can program the device without the power supply , I don't know if the quartus software has a auto alimentation power so I can just plug the usb blaster and program the device without the extern power 

thank you 

[sstrell]

You don't mention which dev kit you're using, but if the kit has a separate power supply brick, then you would need that power for programming and operation.

Some small dev kits, like the DE10-Lite, can operate over USB power, but that's a small minority of available kits.

[OABBA1]

I'm not using a dev board , the cpld is on the pcb 

[JohnT_Intel]

Hi,

If you are using external Blaster, then you will need to power up your board before you are able to program the device. If you are using embedded USB-blaster then it will depend on the board is able to support power up through the USB cable.

[OABBA1]

I'm using usb blaster to program the device , but i'm not using a dev board the cpld is in a seperate pcb!

[JohnT_Intel]

Hi,

Based on my understanding, you will need to power on your CPLD before you are able to program the device.