User Guide

Systolic Array Block Diagram

  • The array takes an input of 64 bits and gives an output of 64 bits.
  • This I/O is communicated using the bidirectional ready-valid protocol.
  • The bits have a predefined format according to which they are received/transmitted.

Matrix Transfer Format [1st 2nd 3rd 4th ] [5th 6th 7th 8th ] [9th 10th 11th 12th] [13th 14th 15th 16th]

Input format:
- [63:32] → row (8 bits per element)[4 elements] - [31:0] → column (8 bits per element)[4 elements]

Output format:
[2 × (32-bit elements)]

How to Give Input?

  • Provide four chunks of 64-bit input where:
  • [63:32] contains the i-th row
  • [31:0] contains the j-th column
  • In this way, each row/column will be 32 bits, and each element will be 8 bits (since 8 × 4 = 32).
  • These I/Os follow the ready-valid protocol:
  • At the input end → valid is expected from the end user.
  • At the output end → ready is expected from the end user.

Final Transfer

  • Recognized with the done_matrix_multiplication flag being set.
  • This indicates:
  • The availability of the final two elements from the array.
  • The chip has returned to its idle state and is ready to accept new inputs.

Getting Started

Steps 1:

Clone the repository:

Clone our repository https://github.com/meds-ee-uet/systolic-MAC.git by:

git clone git@github.com:meds-ee-uet/systolic-MAC.git

Step 2:

Install All the Required Pre-requisites:

  1. Modelsim / Questasim
  2. GTK-Wave
  3. install make
  4. gcc --> for benchmark

Step 3:

Using Makefile :

You can see the simulations in GTK-Wave using the Makefile. You have to write following command :

make TOP=module_name all

Or you can alternatively use Modelsim or Questasim as well !