Embed Size (px)
Citation preview
Outline
• Introduction.
• Real Life Implementation.
• Implementation.
• Operation.
• Connection Management.
• Advantage.
• Weakness.
Introduction
• µIP (micro IP) is very small TCP/IP stack.
• Open source, widely used memory-constrained embedded product.
• This protocol stack intended for use with tiny 8- and 16-bit microcontrollers.
• Developed by Adam Dunkels
Real Life Implementation
µIP based PICO satellites
Continue …
Viper m200 PTZ Network Camera Sensortag CC2650
Continue …
Viper m200 PTZ Network Camera Sensortag CC2650
Contiki Platforms
Implementation
• Latest version of uIPv6, are integrated with Contiki.
• An open-source operating system for the Internet of Things
• Actually uIP stack is designed for small computer system with no operating
system.
Operations
• Called in a timed loop.
• Then call manages other network behavior.
• uIP calls the hardware driver to sent the packet of data.
• uIP build the packet before.
• It used packet buffer in a half-duplex way for transmission and reception.
• If needs to retransmit, its just call the application code to sent previous data.
Connection Management
• Have one task per connection
• Task communicates with a task in a distant computer on the other end.
• Connections are held in an array.
• On each call, uIP tries to serve a connection.
• Making a subroutine call to responds to, or sends data
Advantage
• Throughput speed
• Minimum RAM usage
• Minimum CPU usage
• Work with tiny 8- and 16-bit microcontrollers
• The uIP stack uses less then 10kB ROM and 2kB RAM and Contiki can easily fit
in 100kB. ROM and 10kB RAM.
Weaknesses
uIP system can start a responding packet before the PC is ready to receive it.
Conclusion
• Micro IP (µIP) is widely used TCP / IP network protocol.
• Its used for its lightness.
• Its need low memory and processing speed.
• Some micro IP device can communicate faster then normal PC.
References
1. Curtis, Paul. "Adam Dunkel's uIP on the Olimex EasyWeb2 and LPC-E2124“2. uIP (micro IP)[online]. Available: https://en.wikipedia.org/wiki/UIP_(micro_IP)3. Adding network support to a DSP-based embedded system [online]. Available:
http://www.drdobbs.com/inside-the-uip-stack/1844059714. Barnett, Drew; Massa, Anthony J. (February 1, 2005). "Inside the uIP Stack.5. FreeRTOS web site examples, 2013 [online]. Available: http://
www.freertos.org/RTOS_ports.html6. uIP (and FreeTCPIP which is heavily based on uIP) [online]. Available : http://
www.freertos.org/embeddedtcp.html7. Small TCP/IP stacks for micro controllers. By Lucas van der Ploeg
Thanks
