Problem about SPA against RSA on XMEGA

Hi! I am trying to execute the script /jupyter/courses/sca202/PA_SPA_2-RSA_on_XMEGA_8bit.ipynb, but getting the following communication error:

My environment:
Hardware: CW308 with an XMEGA target
SCOPETYPE = ‘OPENADC’
PLATFORM = ‘CWLITEXMEGA’
CRYPTO_TARGET = ‘AVRCRYPTOLIB’
%%sh -s “$PLATFORM” “$CRYPTO_TARGET”
cd …/…/…/hardware/victims/firmware/simpleserial-rsa
make PLATFORM=$1 CRYPTO_TARGET=$2

I tried changing SS_VER to SS_VER_1_0 or SS_VER_2_1, but it didn’t work.
Can you please help me resolve this problem?

Thank you.

SS_VER should be kept to SS_VER_1_1.

Sounds like you might be running into the same issue described here: