TinyOS 2'0

1
TinyOS 2.0

• David Culler, David Gay, Ben Greenstein, Vlado
  Handziski, Jonathan Hui, Philip Levis, Joe
  Polastre, Lama Nachman, Cory Sharp, Gilman Tolle,
  Martin Turon, Ion Yannopoulos and more

2
Problems in TinyOS 1.x

• Multiplying platforms
• n2 MCU radio combinations
• avrmote -gt mica -gt mica2 -gt micaZ
• Cross platform code is difficult (Timers, etc.)
• Task related reliability
• Many current interfaces are insufficient
• Users have gained a lot of experience in 2.5
  years
• Higher level abstractions
• Flexible boundaries means we should have some

3
TinyOS 2.0

• Cross institution effort
• Berkeley, UCLA, TU Berlin, Crossbow, Intel, etc.
• Incorporates new language features in nesC 1.2
• Generic (instantiable) components, attributes,
  etc.
• Hardware dependent/independent boundaries
• HPL -gt HAL -gt HIL
• Platforms are a collection of chips
• msp430 CC2420
• Extensible scheduler (a component)
• Reserved tasks by default (fault tolerance)
• You can have priority tasks

4
TinyOS 2.0, continued

• Interface updates
• Timer
• Send
• StdControl, SplitControl, etc.
• Roll in tried and tested code
• Time synchronization
• Collection routing

5
TinyOS 2.0, continued(well, maybe 2.1)

• For application-level programming, notion of
  services
• Instantiable components presenting an OS
  abstraction
• Less wiring, no more parameterized interfaces,
  unique(), etc.

generic configuration AMSender(am_type_t type)
provides interface AMSend provides interface
Packet generic configuration TimerMilli()
provides interface TimerltTMilligt components
AMSender(AM_TYPE), TimerMilli() App.AMSender -gt
Sender App.Timer -gt TimerMilli
6
Release

• Alpha release TTX II
• (TinyOS Technology Exchange II in Feb)