1. By: Justin E. Klumpp & Leo L.S. Wan
HOME CONTROL SYSTEM
By: Justin E. Klumpp
&
Leo L.S. Wan

2. Base Microcontroller Motorola 9S12DP256B Bus Frequency at 24MHz Memory
256k bytes Flash
12k bytes RAM
4k bytes EEPROM

3. Kernel Choice MicroC/OS-II Real-Time preemptive multitasking kernel
Semaphores used to communicate between tasks
Tick period, 1ms

4. Kernel Tasks & Priority
StartTask Priority:4
ControlTask Priority:5
RTCTask Priority:6
DAATask Priority:7
SCITask Priority:8
KeyTask Priority:9

5. StartTask
Description: Initializes MicroC/OS and creates the other tasks during startup
Priority: 4
Period: Executes once at startup
Execution Time: 150ms estimated

6. ControlTask
Description: This task controls all remote modules and intertask communication. It interprets all user’s command, phone line termination, sprinkler control, DTMF input, and User Interface control.
Priority: 5
Execution Time: 4ms (max)
Period: 10 ms (Periodic)
CPU Load: 0.4

7. RTCTask
Description: Receive real time data from the DS1305 real time clock.
Priority: 6
Execution Time: 35 us
Period: 1 second (Periodic)
CPU Load:

8. DAATask
Description: This task will scan the RING pin on the DAA chip for valid ring signals
Priority: 7
Execution time: 50us
Period: 20ms
CPU Load: .0025

9. SCITask
Description: Poll the SCI Receive Data Register Full (RDRF) flag, once flag is set, SCI clocks in data into a buffer.
Priority: 8
Execution Time: 50us.
Period: 10 ms (Periodic)
CPU Load: 0.005

10. KeyTask
Description: The main keypad scanning task. It scans the keypad and updates the keypad buffer if a key press was verified.
Priority: 9
Period: 10ms
Execution Time: 50us
CPU Load: 0.005
Code Composed by: Todd Morton

11. Total CPU Load Max CPU Load: 0.4 + 0.000035 + 0.0025 + 0.005 + 0.005=
Average CPU Load: 0.25

12. Base Control Software Modules Tasks Public Functions and Data Main.c
DAATask
RTCTask
StartTask
ControlTask
VoiceCtrl.c
VoiceInit()
PlayMSG()
LCD.c
Code Composed By:
Todd Morton
LcdInit()
LcdClrDisp()
LcdMoveCursor()
LcdDispStrg()
LcdDispChar()
LcdDispTime()
LcdCursor()
Key.c
KeyTask
KeyInit()
KeyPend()

13. Base Control Software continued….
Modules
Tasks
Public Functions and Data
EEProm.c
Code Composed By:
Todd Morton
EEPROMInit()
EESectModify()
SCI_Driver.c
SCITask
ReadSCI()
WriteSCI()
InitSCI()
DTMF.c
DTMFInit()
DTMFWrite()
DTMFRead()
UI.c
TimeSet()
PhoneSet()
AlarmSet()
UIMenu()
SPI_driver.c
Jon Peterson
ReadSPI()
WriteSPI()
InitSPI()

14. LCD Flow Diagram UI.c Public Function(s) LCD Driver LCD I/O LcdInit()
LcdDispStrg()
TimeSet()
LcdDispChar()
Lcd()
PhoneSet()
LcdMoveCursor()
LcdCursor()
AlarmSet()
LcdDispTime()
UIMenu()
LcdClrDisp()

15. Keypad Flow Diagram Keypad I/O Public Function(s) Keypad Driver 10msec
KeyTask()
KeyInit()
Key.buffer
KeyPend()
KeyCode Table
Key.flag

16. Control Task Flow Diagram
Awaiting Flags
Functions to Call
Control Task
TimeSet()
KeyPend()
PhoneSet()
AlarmSet()
10msec
TimePend()
UIMenu()
ControlTask()
SCIPend()
PlayMSG()
DTMFWrite()
RingPend()
EESectModify()
DTMFRead()
WriteSCI()
LcdDispTime()

17. MCU: Control Modules MCU: PSoC CY8C29466 Operating Voltage: 5 volts
Clock Frequency: 6 MHz
Microcontroller will only run one continuous task so no kernel is required
Memory, MCU #1 (Bytes): 25 RAM, 1042 ROM
Memory, MCU #2 (Bytes): 20 RAM, 904 ROM

18. Wireless Alarm Software
Modules
Tasks
Public Functions and Data
Main.c
AlarmTask
Sleep_ISR.c
tx8.inc
From the TX8 Library on PSoC Designer Software
TX8_Start()
TX8_bReadTxStatus()
TX8_SendData()
m8c.inc
From the m8c Library on PSoC Designer Software
M8C_ClearWDTAndSleep()

19. AlarmTask
Description: Send a byte of data at a rate of 300bps. The byte of data contains the current state of the alarm sensor, and a unique alarm ID number.
Period: Runs on a sleep timer that wakes up every second
Execution time: ~1us
CPU Load:

20. ISR: Sleep Timer
Description: This timer is used to put the Microcontroller into a sleep mode, where the current consumption on the PSoC is ~2.9uA.
Execution Time: ~1us
Period: 1 second
CPU Load:

21. Data Flow Diagram: ISR
Sleep Timer Interrupt

22. Appliance Control Software
Modules
Tasks
Public Functions and Data
Main.c
LightCtrlTask
rx8.inc
From the TX8 Library on PSoC Designer Software
RX8_Start()
RX8_bReadRxStatus()
RX8_bReadRxData()
timer8.inc
From the Timer8 Library in PSoC Designer Software
Counter8_Start()
Counter8_WritePeriod()
Counter8_WriteCompareValue()

23. LightCtrlTask
Description: Polls on a valid data flag to be set, if set clocks in bits of data. Receive byte of data at 300bps; data contains control bits to turn on/off output pins. Controls the state of a relay; on or off.
Execution time: ~1us
Period: Continuous Operation
CPU Load: 1