Introduction to RoweBots Ultra Tiny Linux RTOS

Transcription

1 Your Company Logo HERE (Similar size to the Logo on the left of the page) Introduction to RoweBots Ultra Tiny Linux RTOS Kim Rowe, President & Founder RoweBots Research Inc. Class ID: 9C091 Renesas Electronics America Inc.

2 Kim Rowe 30+ years in embedded systems Serial entrepreneur 25 years as General Manager BESc Electronics MEng Systems and Computers MBA - General 40+ published papers and articles 2

3 Renesas Technology & Solution Portfolio 3

4 Overview The Smart World Time and Money Unison OS Architecture MCUs Connectivity Behind the Scenes Instant Configuration Device Services Internal Examples RemedyTools Summary 4

5 Smart Homes 5

6 Smart Buildings 6

7 Smart Factories 7

8 Smart Transportation 8

9 Health Care 9

10 Time and Money All Mainstream Operating Systems = POSIX Time to Market Delays cost market share with a very high cost Total Cost of Ownership Minimal costs over multiple projects POSIX maximizes reuse, minimizing time and effort Applications are portable to other OS platforms The future is uncertain be prepared Knowledge Reuse Elimination of Training Software Building Blocks Focus on Value Added 10

11 Unison Architecture 11

12 Unison OS Architecture Ultra tiny POSIX RTOS Ultra tiny Linux compatible OS Layered nanokernel architecture Single process, multiple threads POSIX I/O model Modular I/O selection User defined start-up Memory protection Multicore options 12

13 Unison Layered Architecture 13

14 Thread States 14

15 Kernel Synchronization and Communication POSIX Mutex Semaphore Message Queues Barrier Conditional Variables OS Internal Rendezvous Mr_sigpost 15

16 Simple Mutex Lock 16

17 Simple Semaphore Lock 17

18 Barrier 18

19 Conditional Variable 19

20 Message Queue 20

21 Additional Kernel Services Time and clock services System tick User defined application memory allocation/free User defined kernel memory allocation/free Thread creation, destruction Join and exit Thread cancellation (poison pill approach) System initialization Fixed size buffer management Registry and more 21

22 Connectivity 22

23 Connectivity Options File Systems Internet Protocols USB Wireless Serial I/O Bus I/O Timers and PWM Motor Control Graphics GPIO 23

24 File System Options FAT 12/16/32 Removable media friendly (USB, usd, ) Fsys Minimal resources on media Block cache User defined block size User defined drivers NOR, NAND, usd, RAM, Sole File System Screwdriver power failure safe Space inefficient NOR, usd 24

25 Internet Options 25

26 Wireless Options Cell Radio Modems GPRS Proprietary Radios UHF / VHF WiFi Bluetooth and Bluetooth LE (low data rate, small packet radio) 6loWPAN (TCP/IPv6) Proprietary Zigbee modules 26

27 USB USB Host MSC CDC HID USB Device MSC CDC OTG* 27

28 MCU Support Rx Family SH2A Family M16C/R8 R32C 28

29 Behind the Scene Single linked image Separate thread(s) for each concurrent service Independent I/O servers Rendezvous mechanism (Send, Receive, Reply) Server name registration Path resolution to server Library for each non-concurrent service Separate interrupt stack Optional MPU 29

30 Rendezvous Calls 30

31 Rendezvous States - Sender 31

32 Rendezvous States Receiver/Reply 32

33 File and Socket I/O Model 33

34 Name Server / Registry Register Deregister Lookup By name By type By id 34

35 File I/O Server Resolution 35

36 Instant System Configuration User runtime configuration Modular design Simple I/O selection, initialization and creation 60+ running examples Minimal footprint (RAM and Flash) Example with many servers and services 36

37 Start-up Configuration 37

38 Server Configuration Start-up Configuration Record Pthread_create Drivers selected and supplied Example Networking server configuration record Created at start-up Select drivers PPP required? GPRS I/O and setup? Wire line driver WiFi driver 38

39 Device Services 39

40 Server Architecture 40

41 Device Service Library LEDs GPIO Real Time Clock (alternate implementations) 41

42 Internal Examples 42

43 USB Embedded Host And Device 43

44 USB Mass Storage Host Implementation Application IOlib FATFS FATUSB Dvr Host MSC Class USB Host Core USB Driver USB MSC Blocks of Memory 44

45 USB Mass Storage Device Implementation Initialization IOlib media Block Server Nand, Nor, Dsk Dvr Device MSC Class USB Device Core USB Driver PC with USB Host MSC Unison usbh-msc 45

46 Wireless Architectures 46

47 PPP for GPRS / UHF 47

48 Bluetooth Implementation Example 48

49 Telnet and POSH Implementation 49

50 RemedyTools Remedy OS Viewer Remedy Bootloader Remedy POST (Power On Self Test)* Remedy Diagnostics* Remedy Remote Control, Event and Data Analyzer (RED) 50

51 Demonstration: Remedytools 51

52 Overview The Smart World Time and Money Unison OS Architecture MCUs Connectivity Behind the Scenes Instant Configuration Device Services Internal Examples RemedyTools Summary 52

53 Questions? 53

54 Please Provide Your Feedback Please utilize the Guidebook application to leave feedback or Ask me for the paper feedback form for you to use 54

55 Renesas Electronics America Inc.