Tizen RT 1.0 M1

Release Notes

New and Changed Features

  • Architecture

    • ARM

      • Cortex-R4

        • SIDK-S5JT200
  • Kernel
    • FIFO / RoundRobin Scheduling and Interrupt

      • Fully Preemptible
    • Task and Pthread
    • IPC
      • Message Queue
      • Signal
    • Semaphore, Mutex
    • Clock, Timer, Systick
    • Work Queue
    • Environment
    • Number of last error (errno)
    • Power Management
    • Dynamic Memory Management
    • Debug
      • Stackmonitor
      • Heap analyzer
        • Allocated heap size (total and per thread)
        • Address calling mm API
      • Ramdump / Coredump
    • Logger Module
    • System logging (Syslog)
    • Shell tools: date, dmesg, getenv, free, heapinfo, kill / killall, ps, setenv, stkmon, unsetenv
  • Device Driver
    • GPIO, I2C, UART, PWM and Pipe

      • Controlled by file operation
    • SPI
    • USB CDC/ACM
  • File System
    • Bad Sector Management

      • File System checks the bad sectors during write operation and maintains list of bad sectors inside of the physical flash.
    • Dynamic Header
      • A technique to reuse a used sector of smartfs throughout all write operation into that sector without relocation (smartfs reallocates sectors when a file is rewritten).
    • Sector Recovery
      • A tool to recover the sectors lost in case of power failure (smartfs only)
    • Journaling
      • Added Transaction-Logging based Journaling Feature
      • It takes several sectors based on number of file descriptors.
  • AraStorage
    • Query Interface

      • SQL like query interface exposed: Simple and Standard  relations
      • Wrapper for AQL command input to the relational query parser
      • Readable, interactive, expandable form constructs for specifying search constraints and AQL object attributes
    • Index Algorithm
      • Optimizes the execution of database queries by delimiting the set of tuples that must be processed.

        • Inline: Useful for Ordered Data sets
        • B+ based Index: Useful for MASS Data sets
    • Storage Abstraction
      • Use a basic POSIX APIs in VFS to support Database operations.
    • Cursor
      • Added a cursor structure to allow easier use of arastorage.
  • Network and Connectivity
    • LWIP

      • LWIP 1.4.1 release code is taken as the base network stack for TinyAra.
      • Support of IPv4, TCP, UDP, ICMP, ARP, IGMP , DHCPc & Generic sockets are provided.
      • Missing POSIX API support for all the network API's is enabled in TinyAra.
      • TinyAra OS compatibility and performance improvements done.
      • Fixed in the LWIP stack to give desired result on applications, such as DHCP, DNS, HTTP, IoTivity, TELNET, and WEBSOCKETS, is completed.
      • Samples for tcp/UDP for unicast/multicast testing and stress testing are provided.
      • LWIP stack is verified over performance tool iperf to measure the reliability and throughput of the stack.
      • Added Arp retransmission and updated arp timer.
      • Socket structures belong to task (not global variables). So when the task is terminated, the socket is also destroyed. Dup can be also applied for being shared among multiple threads.
    • IoTivity
      • IoTivity 1.1.0 release code is taken as base code for TinyAra.
      • It supports secured resources for device to device (through the UDP adapter).
      • Provisioning, ownership transfer, and access control features are enabled for the d2d scenario.
      • Registering to the IoTivity 1.1.0 cloud and getting the auth provider is supported.
      • Publishing the IoTivity resources over IoTivity 1.1.0 cloud is supported.
      • CoAP over TCP is supported for communication to IoTivity 1.1.0 cloud infrastructure.
      • Sample support for IoTivity_nosecurity, Security, Cloud, and IoTivity over UDp is provided.
  • Shell (TASH)
    • Supports 2 command types

      • Synchronization

        • Execute a command immediately in the shell context.
      • Asynchronization
        • Execute a command in a new pthread context.
    • Support API to register commands by each module has been enabled.
    • Executing a shell script is supported.
  • Framework
    • System I/O (5 API sets)

      • GPIO (General Purpose Input/Output)
      • I2C (Inter-Integrated Circuit)
      • SPI (Serial Peripheral Interface)
      • PWM (Pulse-width modulation)
      • UART (Universal Asynchronous Receiver/Transmitter)
    • Device Management (2 API sets)
      • LWM2M Client
      • Connectivity Monitoring
    • AraStorage (1 API set)
      • Query data and Cursor
  • Library
    • Built-in Libc and Libxx APIs
  • External
    • Device Management (Wakaama EPL v1.0)
    • Iotivity v1.1.0
  • Examples
    • Artik_demo
    • Dtls_client
    • Dtls_server
    • Fota_sample
    • Hello
    • Hello_tash
    • helloxx
    • Iotivity
    • Iperf
    • Kernel_sample
    • Mdns_test
    • Mpu
    • Nettest
    • Ntpclient_test
    • Proc_test
    • Select_test
    • Sysio_test
    • Telnetd
    • Testcase
    • Tls_client
    • Tls_selftest
    • Tls_server
    • Wakaama_client
    • Webclient
    • Webserver
    • Websocket
    • Workqueue

Known Issues

  • Pthread Cancellation

    • When the pthread_cancel() function is called to terminate a pthread, resource used for the pthread is not freed.
  • FOTA Support
    • Device driver and HAL APIs are provided, but chip dependency codes must be updated. After updates, the APIs will be fixed.
  • Wi-Fi Support
    • Network stack is provided, but there is no Wi-Fi stack.  Wi-Fi stack is provided soon. After the Wi-Fi stack is added, the network functionality will work correctly.