Embedded Systems
The Challenge of Real-Time Operations
Soheil Gholami
soheilgholami28@gmail.com
Software Freedom Day
Sharif University of Technology
29th September 2016
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Outline
• Real-Time Operations
• Embedded systems
• Solutions to Real-Time Problem
• Sample Challenge
• Presented Solution
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Real-time concept
• Real-time computing (RTC)
• Real-time operating system (RTOS)
Library
Hardware
Application
Linux Kernel
C Library
Read/WriteRequest
Response
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Embedded systems
• Operating systems
• Jitter time
Jitter
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Solutions
1 Interface
• Serial, I2C, ISP, . . .
• USB, Ethernet, Wi-Fi, Bluetooth
2 Co-hardware
3 Driver
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Example 1: Servo motor control with Raspberry Pi
What you need:
• Raspberry Pi 3
• Servo Motor SG92R
USB
EthernetPower HDMI
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Example 1, Cont’d
• Servo Motor
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Example 2: Solution for Example 1
• Using a free hardware such as Arduino Due
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Do-Time
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