Tiny Tapeout > Tiny Tapeout Chips > Tiny Tapeout SKY 25a > 198 Stochastic Multiplier, Adder and Self-Multiplier
198 Stochastic Multiplier, Adder and Self-Multiplier
198 : Stochastic Multiplier, Adder and Self-Multiplier
- Author: Ciecen Lestari, Chih-Kuan Ho, David Parent
- Description: Multiplier, Adder and Self-Multiplier using stochastic computing
- GitHub repository
- Open in 3D viewer
- Clock: 50000000 Hz
Stochastic add and multiply dual signal encoding
How it works
The data is converted from binary-weighted to a serial probability code data stream with two signals, allowing negative numbers to be processed by a stochastic computer. Then multiple and add operations are computed and converted back into a serial binary weighted stream.
How to test
Input two serial binary weighted serial streams in 2-complement format. Begin reading the data when the serial clock signal goes high.
External hardware
ADALM2000 and Python to set up the serial data stream and to analyze the data coming out.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | serial_input_1 | serial_output_mul | |
| 1 | serial_input_2 | serial_output_add | |
| 2 | serial_output_smul | ||
| 3 | clk_counter_reset | ||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 |