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Maniphest T732

PWM FAN control for the AXIOM Beta
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Description

Implement PWM FAN control to regulate the AXIOM Beta FAN speed.
This task comes in different flavors, ranging from Easy to Medium.

Goals:

  • Implement an I2C based PWM controller (Easy)
  • Integrate temperature sensors into control loop (Medium)

Prerequisites:

  • I2C Know-How

Language Skills:

  • HDL (VHDL or Verilog)

Difficulty: Easy to Medium

Mentors: Bertl

Notes: If you do not have access to the required hardware platforms/dev kits, we will provide them (or remote access) to you for the duration of the project.

Related Objects

Bertl created this task.Feb 9 2017, 4:26 PM
Bertl updated the task description. (Show Details)
Bertl raised the priority of this task from to Needs Triage.
Bertl added a project: Google Summer of Code 2022.
Bertl moved this task to FPGA / HDL on the Google Summer of Code 2022 board.
Bertl added a subscriber: Bertl.
Bertl updated the task description. (Show Details)Feb 9 2017, 5:22 PM
Elbehery added a subscriber: Elbehery.EditedMar 10 2017, 2:01 AM

Hey @Bertl, two days ago i asked if i can post a simple prototype for the I2C slave and you said its okay.

https://github.com/ELBe7ery/i2c_draft_gsoc/tree/master/I2c%20slave

Please let me know your feedback.

I do still have many questions regarding the big picture of the project, but based on your feedback i will then post them on the IRC.

Thanks

Elbehery added a comment.EditedMar 13 2017, 11:14 PM

Hey @Bertl, just implemented the top module including the PWM interface, and so far the module seems to work based on the test bench results. Let me know your feedback,

https://github.com/ELBe7ery/i2c_draft_gsoc

niculescu_vlad added a subscriber: niculescu_vlad.EditedMar 14 2017, 2:19 PM

I will start sending my solutions here: https://drive.google.com/open?id=0B4vrlXPPuUghVU5qaHFwR2NWYjA
Elbehery did a great job and implemented the I2C module. I wrote a simplified but functional iteration of PWM generator and now, I want to start working at the PID controller.

Elbehery added a comment.Mar 18 2017, 7:46 PM

Some points related to the 2nd part of this task [The software controlling the fan]

  • The software will use the T757 interface to collect sensor(s) readings
  • There are different modes of operations that are determined based on the collected readings, and are reported to another software
  • The software should be able to determine the state of operation based on the collected readings, and will act differently in different states. For example; In state A the software should keep the fan silent as possible while preventing the system from overheating, while in state B the fan is allowed to run at higher speeds to cool the system down as good as possible