640 Stochastic Integrator
640 : Stochastic Integrator
- Author: Ciecen Lestari, Chih-Kuan Ho, David Parent
- Description: Use stochastic computing to implement integration
- GitHub repository
- Clock: 50000000 Hz
How it works
The stochastic integrator uses Euler's definition of integration to make it happen in the stochastic domain. This integrator follows unipolar probability.
REFERENCES USED
General Stochastic Integrator Design:
[1] S. Liu and J. Han, "Hardware ODE solvers using stochastic circuits," 2017 54th ACM/EDAC/IEEE Design Automation Conference (DAC), Austin, TX, USA, 2017, pp. 1-6, doi: 10.1145/3061639.3062258. keywords: {Radiation detectors;Stochastic processes;Hardware;Generators;Clocks;Energy consumption;Throughput;stochastic integrator;ordinary differential equation;stochastic computing},
LFSR Design in Stochastic Computing:
[2] Jason H. Anderson, Yuko Hara-Azumi, and Shigeru Yamashita. 2016. Effect of LFSR seeding, scrambling and feedback polynomial on stochastic computing accuracy. In Proceedings of the 2016 Conference on Design, Automation & Test in Europe (DATE '16). EDA Consortium, San Jose, CA, USA, 1550–1555. https://dl.acm.org/doi/abs/10.5555/2971808.2972171
How to test
Set ui_in[0] with a constant high and ui_in[1] with constant low to see the equations described.
External hardware
ADALM2000
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | serial_input_1 | serial_output_seq_integrator_a | |
| 1 | serial_input_2 | serial_output_seq_integrator_b | |
| 2 | serial_output_seq_integrator_c | ||
| 3 | serial_output_system_integrator_a | ||
| 4 | serial_output_system_integrator_b | ||
| 5 | serial_output_test_integrator_a | ||
| 6 | serial_output_test_integrator_b | ||
| 7 | output_sn_bit_seq_integrator_c |