XMEGA serial Read timed out

Embedded Security ChipWhisperer Hardware
1

I am using XMEGA board as target. I am trying to run example given in demos folder i.e http://localhost:8888/tree/jupyter/demos/.
Specifically I am executing
CW-Pro Using SAD (Analog Pattern) Trigger - Attacking AES.ipynb

I am getting following error

xmega issue
xmega issue1092×119 3.71 KB

Kindly help me out to resolve this issue

2

Did you recompile and reprogram the target? By default, this lab uses simpleserial v1, but you’re using simpleserial v2.

3

I am running it from the start and faced no error. But on this line, I am facing this issue.

How to change SimpleSerial from V1 to V2?

4

Make sure SS_VER = SS_VER_2_1 is in the first code block and change

%%bash -s "$PLATFORM" "$CRYPTO_TARGET"
cd ../../hardware/victims/firmware/simpleserial-aes
make PLATFORM=$1 CRYPTO_TARGET=$2

Try running reset_target(scope) before the capture block as well.

Alex

to

%%bash -s "$PLATFORM" "$CRYPTO_TARGET" "$SS_VER"
cd ../../hardware/victims/firmware/simpleserial-aes
make PLATFORM=$1 CRYPTO_TARGET=$2 SS_VER=$3
5

@Alex_Dewar I have already tried to change the version in said lines, but I would try that again.

6

@Alex_Dewar I have changed these lines as your suggestion, but I am getting same error. My code is as follows:

SCOPETYPE = ‘OPENADC’
PLATFORM = ‘CWLITEXMEGA’
CRYPTO_TARGET = ‘AVRCRYPTOLIB’
SS_VER=‘SS_VER_2_1’
%%sh -s “$PLATFORM” “$CRYPTO_TARGET” “$SS_VER”
cd …/…/hardware/victims/firmware/simpleserial-aes
make PLATFORM=$1 CRYPTO_TARGET=$2 SS_VER=$3
%run “…/Setup_Scripts/Setup_Generic.ipynb”
fw_path = ‘…/…/hardware/victims/firmware/simpleserial-aes/simpleserial-aes-{}.hex’.format(PLATFORM)
cw.program_target(scope, prog, fw_path)
scope.clock.adc_src = “clkgen_x1”
scope.adc.basic_mode = “low”
scope.adc.samples=1000000
reset_target(scope)
ktp = cw.ktp.Basic()
key, text = ktp.next()
ret = cw.capture_trace(scope, target, text, key)

I am getting this error:

xmega issue n
xmega issue n920×132 4.62 KB

Kindly tell me if I need to do any changes regarding switches or jumpers on target board (red board) for XMEGA?

7

It doesn’t look like you’ve got stream mode activated. Also, you may want to try changing scope.adc.basic_mode to "high" instead of "low".

Alex

1 Like
8

Thanks @Alex_Dewar, I have figured this that:

Only by enabling stream mode doesn’t solve the issue. I have also edited make file for this purpose.

Again thanks a lot for guidance and quick response