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Ulink2 and NVMCTRL_EEPROM_SIZE fuse on ATSAMD20E18 (Cortex M0)

Hello,

I'm developing simple board with MCU having to store configuration data and based on them init another devices on the board. So I decided to use internal EEPROM emulation to store the settings (they could be changed over UART, so that's why I don't burn the setting hardcoded).

But I'm having a trouble setting NVMCTRL_EEPROM_SIZE fuse using Keil uVision and Ulink2. I simply didn't find any place where to set the fuse. I successfully added Microchip/ATSAMD20E18 chip (didn't find Atmel which I actually have) device to have proper programming algorithm, but nothing more than address range and erase/verify options found.

I spent whole day trying to get an access to the fuses, but without any success.

Another option is to purchase SAM-ICE for Atmel Studio where the fuses are available, but as I have Ulink2, I'm trying to use it first.

Any ideas?

Thank you very much!

John