1. Introduction to Embedded Systems

2. Introduction to Embedded systems
Build process for embedded systems
Structural Units in Embedded Processor
Selection of Processor
Selection of Memory Devices
Direct memory devices
Memory management methods
Timer & Counter devices
Watchdog Timer
Real time clock
In circuit Emulator
Target Hardware Debugging

3. Introduction to Embedded systems
Definition
Characteristics
constraints

5. Build process for embedded systems

6. Structural Units in Embedded Processor

7. Selection of Processor

8. Direct memory Access

9. Memory management methods

10. Timer & Counter devices

11. Watchdog Timer

12. Real time clock

13. In circuit Emulator
A hardware tool that debugs and program a target device.
Emulator has more features than debugger
Emulate means imitate with effort

14. Emulator features Processor run at maximum speed
Debugging can be done with device in circuit
No emulation load on the processor bus
Simple interconnection
Capability to incorporate I/O data

15. Emulator helps Debug an application on hardware in real time
Debug with hardware breakpoints
Debug with software breakpoints
Halt, based on internal events or external events
Monitor internal file registers
Emulate full speed of processor
Program device as production programmer
Trace the lines of code

16. Emulator system setup

17. Target Hardware Debugging

18. Embedded Networking
Unit 2

19. Introduction
I/0 Devices Ports
Buses
Serial Bus Communication Protocols
RS232 Standard
RS422
RS485
CAN Bus
Serial Peripheral Interface
Inter Integrated Circuits
Need for device drivers

20. Introduction Need for Embedded Networking Embedded Development
About size
About cost
About performance
About accuracy

21. I/O Device Ports
Input output device ports shows how the operating system might interact with such an entity
Using serial I/O bus
Using parallel I/O bus
Using Internet
Using Wireless protocol

22. I/O Device Ports Synchronous serial input Synchronous serial output
Asynchronous serial UART input
Asynchronous serial UART output
Parallel one bit input
Parallel one bit output
Parallel port input
Parallel port output

23. Embedded Networking

24. Bus
It is a collection of wires which carry electrical signal. That is may be defined in terms of voltage or current level
It is classified as address, data, & control

25. Address bus
Which carries the memory or IO address, that processor wants to access in order to read or write data. It is an unidirectional bus.

26. Data bus Carries the data coming from or going to the processor.
It is a bidirectional bus
Which place major role of reading & writing

27. Control bus
Also called as command bus which transports control and synchronization signal.
It is a bidirectional bus, that is signal which travel in either or both direction are present in the group

28. Processor Memory Bus
Peripheral Buses

29. Processor memory & peripheral bus

30. Embedded processors

31. Serial Bus Communication Protocols
Data between the two device only in bit by bit fashion
Sequence by using single wire
Serial interface using RS232
Serial Interface using RS422/RS485
Universal Serial Bus
CAN Bus
I2C

32. Types Simplex connection Data flow in one direction
From transmission to receiver
Ex: communication between computer to Printer
Mouse to cpu

33. Half Duplex connection
Also called alternating or Semi duplex
Data flow in bi direction
Data flow in one direction at a time
EX: Walkie Talkie

34. Full Duplex :
Data flow in both direction simultaneously

35. Features of serial communication bus
Synchronous bus
Asynchronous bus

36. Communication Protocols RS232
Standard Interface in processor & controller
Serial I/O Protocols
Either in Synchronous or Asynchronous
Also called EIA 232