3.1.1. Frame Lock Test

Filename

xena_lt_preset_frame_lock.py

To measure the frame lock status of the remote transmitter using the specified preset.

Number of <repetitions>, default to 1
AN/LT Configuration
- AN enabled/disabled.
- <preset> the remote transmitter should use.
- <serdes> the serdes lane(s) to test
Port configuration
- Interface type, e.g. QSFPDD 100G CR
- Serdes speed
- Number of Serdes (read-only)

If AN is enabled, test port starts AN + interactive LT. Else, start interactive LT on the port.
AN Phase
- 2.1. If AN result is AN_GOOD_CHECK, continue to LT Phase.
- 2.2. If AN result is not AN_GOOD_CHECK, quit the test and report AN failure with the AN status.
LT Phase:
- 3.1. Request the remote transmitter to use PAM4 or PAM with Precoding modulation.
- 3.2. Request the remote transmitter to use a <preset> on each specified Serdes.
- 3.3. Read frame lock status of each specified Serdes.
- 3.4. Announce trained on <serdes> to close LT.
Stop AN and LT on the test port.
Repeat 1-4 until all <repetitions> are done.