The chip generates a PRBS31 signal using a Fibonacci LFSR and analyzes it with the same structure. The output of the PRBS is taken off the chip and read back in to be analyzed.
Two 7-bit vectors are converted into puedo random signal PSR by comparing the vector to the PRBS. These signals are also output and can be used as an alternative to a PWM DAC. These two PRS are multiplied with an and gate, and the out is sent off-chip. Singal A is squared by delaying it by one clock cycle and anding the signal with the delayed version.
A 131-bit PRBS generator is included as well to fill up the tile as much as possible.
Everything will be documented here:https://docs.google.com/document/d/1nhcHBQsxXUUo1_4WGjxFoWHzpVBCy18a5GQimM9eUtQ/edit?usp=sharing
Input Clock and reset
ADALM2000
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | i1 | out1 | |
| 1 | i2 | out2 | |
| 2 | i3 | out3 | |
| 3 | i4 | ||
| 4 | i5 | ||
| 5 | i6 | ||
| 6 | i7 | ||
| 7 | i8 |