DALI Control Device using XC836 DALI Board - description

XC800 Family
AP08133
DALI Control Device using XC836 DALI Board
Application Note
V1.1, 2012-10
Microcontrollers
Edition 2012-10
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2012 Infineon Technologies AG
All Rights Reserved.
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AP08133
DALI Control Device using XC836 DALI Board
XC83x
Revision History: V1.1 2012-10
Previous Version(s): 1.0
Page
Subjects (major changes since last revision)
-
Updated DALI Control Board Schematic - Part 1; Changed R5 from 1K to 560R.
Trademarks
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AP08133
DALI Control Device using XC836 DALI Board
Table of Contents
Table of Contents
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
3.1
3.1.1
3.1.2
3.1.3
3.2
3.2.1
3.2.2
DALI Control Device Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DALI Protocol Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GPIO for DALI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timer 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timer 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Protocol Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GPIO for User Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real-Time Clock (RTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
11
11
12
13
14
14
15
4
4.1
4.2
4.3
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supported Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customising Automated Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
16
17
18
5
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
APPENDIX - DALI Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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AP08133
DALI Control Device using XC836 DALI Board
Overview
1
Overview
Digital Addressable Lighting Interface (DALI) is a communication protocol for lighting control in buildings. The
interface was first described in Annex E, IEC60929 standard for fluorescent lamp ballast. Subsequently, it was
updated to the new standard IEC-62386, to include other lighting devices, such as LED, HID, and so on. The
complete standard for control interface of electronic control gears was published in June 2009. The standard for
lighting control devices is scheduled to be published in 2012.
DALI requires only a pair of wires to form the bus for communication to all devices on a single DALI network. Each
piece of operating equipment with a DALI interface can be communicated with, over DALI, individually. Using a bidirectional data exchange, a DALI controller can query and set the status of each connected lighting device. As a
standalone system, DALI can be operated with a maximum of 64 devices. Alternatively, DALI can be used as a
subsystem via DALI gateways for connection to building management systems.
Grouped System : Brightness control within large open- plan office, lecture halls or conference
rooms . DALI can provide zoned or localised control of lighting. Control could be offered through
infra-red remote control or a software control with GUI support , or used together as an easy
configuration tool to group loads together. Offering flexibility in customised lighting.
DALI Control Device(s)
(e.g. Control Panel, Remote Controller
, software control with GUI support)
DALI Bus
DALI Power
Supply
DALI Control Gear
(e.g. Lamp)
DALI Control Gear
(e.g. Lamp)
Can connect up to 64
DALI Control Gear
Complex System : Multiple DALI systems can be connected together utilising gateways to building
management systems . Software programs offer more sophisticated programming functionality for
grouped systems , such as scenesetting , timeclock , and partition control.
Building
Management
System
Gateway
DALI Control Device(s)
(e.g. Control Panel, Remote Controller
, software control with GUI support)
Gateway
Gateway
Gateway
DALI
Systems
DALI
Systems
DALI
Systems
DALI Bus
DALI Power
Supply
DALI Control Gear
(e.g. Lamp)
DALI Control Gear
(e.g. Lamp)
Can connect up to 64
DALI Control Gear
Figure 1
DALI system types
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AP08133
DALI Control Device using XC836 DALI Board
Overview
XC83 x
DALI Slave Boa rd
XC8 3x
DAL I Slave Board
XC83x
SW St ack
XC83x
SW St ack
DAL I
PHY
DAL I
PHY
Powe r
Suppl y
XC83x
DALI Ma st e r Boa rd
XC8 3x
SW St ack
Figure 2
DALI BUS
DALI
PHY
Block Diagram for DALI Control Device and Control Gear
An example solution for a DALI control device1) has been created using the Infineon XC836 DALI Board. This
solution makes use of the available DIP switch on the XC836 DALI Board (KIT_DALI_RGB_XC836_DKV1) to
send user commands to the connected DALI control gear.
This document describes how the DALI control device software has been constructed and demonstrates the
supported software functions.
The following items are required for use with this application note:
•
2 sets of XC836 DALI Board (KIT_DALI_RGB_XC836_DKV1) including DALI Control Gear Software Stack
(AP08102)
1) IEC-62386 Part 300 for Control Devices is scheduled to be published in September 2012. This application example is
targeted at providing a method for the user to send out DALI commands frames.
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DALI Control Device using XC836 DALI Board
Hardware Setup
2
Hardware Setup
This section describes the hardware setup required for this example application. The control device, which makes
use of the XC836 DALI Board, has a standard 4 position DIP switch for user command decoding.
Details on the DALI control gear software and setup can be found in AP08102 DALI Control Gear Software Stack.
DALI Power Supply
1 5 V sup pl y wi th 1 0 0 Ω r e si sto r s
to po wer up th e DA L I bu s l i n e
DA L I
Con tr o l V i a
DIP S wi tch
DALI Master Board
(Control Device )
DALI Slave Board
(Control Gear)
Co mp r i si n g o f:
- K IT_ DA LI_RGB _ X C 8 3 6_DK V 1
Compr i sin g o f:
- K IT _DA L I _RGB _ X C8 3 6 _ DK V 1
- DA LI Con tr o l V i a DIP S wi tch
Figure 3
Hardware Setup for Infineon Control Device and Control Gear
The hardware setup for control device and control gear can be setup using the following steps:
1. Connect the DAP MiniWiggler to the DALI Control board and download the generated hexfile using XC800
FLOAD in DAVEBENCHTM or KEIL UVision4. (Control Device file: DALIKIT_Master.hex, Control Gear file:
AP08102_v1_2_Slave.hex).
2. To supply power for the DALI bus, connect 100Ω resistors in series to each terminal of a power supply unit
supplying 15VDC. This supplies the DALI bus for the DALI network devices.
3. Connect the DALI Control Device (Master) and Control Gear (Slave) to the DALI bus. This completes the DALI
setup to control the device!
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AP08133
DALI Control Device using XC836 DALI Board
Hardware Setup
Power Conn
Connections for programming the DALI
Control Gear using a DAP MINIWIGGLER
5V Supply
(Connector X 3)
1
2
X3
VCC GND
VCC GND
Programming Pin
3
(Connector X 2)
2
1
X2
3
4
SPD
2
PC
KIT_DAP_MINIWIGGLER_USB
(KIT_DALI_RGB_XC836_DKV1)
X3
X2
KIT_DAP_MINWIGGLER_USB
KIT_DALI_RGB_XC836_DKV1
Figure 4
Programming the DALI Control Board using the DAP MiniWiggler
DALI BUS
Connect to
DALI BUS
2
1
X1
(KIT_DALI_RGB_XC836_DKV1)
DALI BUS Connector
(Connector X 1)
X1
DALI
PHY
DALI Control Board
(KIT_DALI_RGB_XC836_DKV1)
DALI PHY
Figure 5
XC836 DALI Control Board
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DALI Control Device using XC836 DALI Board
Hardware Setup
POWER SUPPLY
UNIT
+15V
100Ω
Connect 100Ω resistors
in series to the Power
supply terminals
GND
100 Ω
DALI BUS
DALI Control
Device
DALI Control
Device
DALI Power Supply
1 5 V su p pl y with 1 0 0Ω r e si sto r s
to p o we r up th e DAL I b u s li n e
DA LI
Co n tr o l Vi a
DIP S witch
DALI Master Board
(Control Device )
Comp r isi ng of:
- KIT_ DAL I_RGB _ X C 8 3 6_DK V1
DALI Slave Board
(Control Gear)
Co mp r i sin g o f:
- K IT _DA L I _ RGB _X C83 6 _ DK V 1
- DA L I Co n tr o l V ia DIP S wi tch
Figure 6
DALI Network Hardware Connection
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DALI Control Device using XC836 DALI Board
DALI Control Device Software
3
DALI Control Device Software
This section describes the program operational flow and the software structure used for developing this example
solution. This operation is presented in Figure 7.
MAIN PROGRAM FLOW
Using the Real Time Clock (RTC) module on
the XC836, the inputs from the DIP Switch are
evaluated once every 500ms.
START
Once the evaluation is completed , the RTC is
restarted . This triggers the evaluation for any
new user inputs on the next 500ms event.
RTC event occurs
On an RTC event, stop the RTC and check
for the user input on the DIP switch.
Check for Port Status
Any changes?
Yes
Address Cmd?
No
No
Yes
Update Address
Execute DALI Commands
Yes
Start RTC
Once the commands are executed, restart the
RTC and wait for next RTC event.
Wait
Figure 7
Main Program Flow
For code implementation, we have divided the software into two main layers:
•
•
DALI protocol layer
– Supports the translation of user commands into the desired DALI format to be sent through the DALI bus.
Application code layer
– Evaluates the user commands through the inputs from the DIP Switch on the XC836 DALI Board once every
500ms.
The following XC83x device modules are required for the implementation:
•
•
•
•
•
GPIO for DALI
Timer 0
Timer 2
GPIO for User Input
Real-Time Clock (RTC)
Note: Configuration is performed via Infineon’s Technologies’ free tool DAvETM 2, which generate the skeleton
code based on the configurations set. The screen shots that follow are taken from DAvETM 2.
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DALI Control Device using XC836 DALI Board
DALI Control Device Software
3.1
DALI Protocol Layer
In the control device, the DALI protocol layer provides the translation of user commands into the desired DALI
format to be sent and received through the DALI bus. For our example, the DALI bus chosen is P0.4 (Rxd) and
P0.5 (Txd).
3.1.1
GPIO for DALI
Port 0.5 and Port 0.4 is used to transmit and receive DALI frames respectively.
Figure 8
Port 0 DAvETM 2 Configurations
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DALI Control Device using XC836 DALI Board
DALI Control Device Software
3.1.2
Timer 0
Timer 0 module is used to send DALI command frames. Mode 1: 16 bit timer is selected for this purpose.
Figure 9
Timer 0 DAvETM 2 Configurations
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DALI Control Device using XC836 DALI Board
DALI Control Device Software
3.1.3
Timer 2
Timer 2 module is selected for reception of DALI command frames. The 16 bit timer function capture mode is
selected. Timer 2 is started on a falling edge on T2EX input.
Figure 10
Timer 2 DAvETM 2 Configurations
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DALI Control Device using XC836 DALI Board
DALI Control Device Software
3.2
Application Protocol Layer
The application layer provides the user interface control through the DIP switch on the XC836 DALI board. By
making use of the real-time clock, the user input is evaluated once every 500ms.
3.2.1
GPIO for User Input
Port 2 [0:3] are used to read in the user input from the DIP switch.
Note: Debouncing is not required for this application as the inputs are read once every 500ms. However, if the
user’s application requires more frequent assessments, external debouncing circuits or software
debouncing methods, may be added for input consistency.
Figure 11
Port 2 DAvETM 2 Configurations
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DALI Control Device using XC836 DALI Board
DALI Control Device Software
3.2.2
Real-Time Clock (RTC)
The RTC module is used to support sending DALI commands after a user defined time period. For this purpose,
“Mode 1: Periodic wake-up mode with 75KHz oscillator clock” is selected for the RTC.
Interrupt on compare counter match (ECRTC) is enabled, where a timer match of 500ms is selected. This is used
as a time base for evaluating the DIP Switch inputs. The user can also configure the time base towards minute,
hour or day timer matches.
Figure 12
RTC DAvETM 2 Configurations
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DALI Control Device using XC836 DALI Board
Getting Started
4
Getting Started
This section provides an overview on how the user can use this application. Information on the software package
contents and customization details are also included.
4.1
Supported Commands
This section describes the usage of the DALI Control Device, which has a 4 position DIP switch used for user
command selection. Figure 13 shows the user command selection available on the DIP switch.
1
Bit 2
2
Bit 1
3
Bit 0
4
ON
Bit 3
S1
S1
1
1
ON
Bit[3] = 1: Set Address Instruction
- where DALI address is read from
Bit[2:0] of DIP switch
Bit[2:0]
Bit[2:0]
Bit[2:0]
Bit[2:0]
Bit[2:0]
= 0; Broadcast address
= 1; Short address #1
= 2; Short address #2
= 3; Short address #3
= Others ; Short address #0
DALI Control Device
(KIT_DALI_RGB_XC836_DKV1)
0
ON
1
Bit[3] = 0: Set Command Instruction
- where the selected DALI command is read from Bit [2:0] of DIP switch
USR_CMD4 >>Bit[2:0] = 4
3
3
OFF Command assigned
2
2
USR_CMD0 >> Bit[2:0] = 0
ON Command assigned
4
4
S1
S1
3
3
USR_CMD2 >> Bit[2:0] = 2
USR_CMD6 >> Bit[2:0] = 6
4
4
USR_CMD1 >> Bit[2:0] = 1
USR_CMD5 >> Bit[2:0] = 5
S1 UP Command assigned
S1 DOWN Command assigned
USR_CMD7 >> Bit[2:0] = 7
2
2
USR_CMD3 >> Bit[2:0] = 3
GOTO SCENE 1 Command
assigned
3
3
GOTO SCENE 0 Command
assigned
4
4
S1
Figure 13
Toggling this activates
this command
2
2
Toggling this activates
this command
S1
Control Device DIP Switch Commands
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DALI Control Device using XC836 DALI Board
Getting Started
4.2
Customising Automated Commands
DALI functions are assigned to the DIP Switch controls via a user configuration file (config.h). Table 1 shows the
supported DALI commands and Table 2 gives the customisation possibility to the command assignments.
Table 1
Supported DALI commands
Supported Commands
Description
DALI_OFF
Turns light off
DALI_DIM_UP
Set lighting level up by 1 level
DALI_DIM_DOWN
Set lighting level down by 1 level
DALI_STEP_UP
Fades lighting level up for 200ms
DALI_STEP_DOWN
Fades lighting level down for 200ms
DALI_RECALL_MIN
Sets connected lighting device level to minimum level
DALI_RECALL_MAX
Sets connected lighting device level to maximum supported level
DALI_STEP_DOWN_OFF
Set lighting level down by 1 level. If already at minimum, turn lights off.
DALI_ON_AND_STEP_UP
Turns on connected lighting device. If already on, set the arc power level up one
level.
DALI_GOTO_SCENE_XX
This is a Scene Selection commands. Choosing this enables device for user
configured Scene XX, where XX represents 00 to 15.
Table 2
Customising the commands
DALI Commands
Description
Customising the DALI
Command list
In the file: config.H, the timed command to be executed can be configured by the
user at compile time. A list of supported DALI commands can be referenced from
Table 1.
• To add supported address: #define USR_ADDX <ADDRESS>
• To add supported DALI command: #define USR_CMDX <DALI COMMAND>
where DALI commands can be referenced from Table 1.
Default command selection for file: config.H
#define USR_ADD0 BROADCAST_ADDR
#define USR_ADD1 SHORT_ADDR1
#define USR_ADD2 SHORT_ADDR2
#define USR_ADD3 SHORT_ADDR3
#define USR_ADD4 SHORT_ADDR0
#define USR_ADD5 SHORT_ADDR0
#define USR_ADD6 SHORT_ADDR0
#define USR_ADD7 SHORT_ADDR0
#define USR_CMD0 DALI_OFF
#define USR_CMD1 DALI_DIM_UP
#define USR_CMD2 DALI_DIM_DOWN
#define USR_CMD3 DALI_GOTO_SCENE_00
#define USR_CMD4 DALI_ON_AND_STEP_UP
#define USR_CMD5 DALI_DIM_UP
#define USR_CMD6 DALI_DIM_DOWN
#define USR_CMD7 DALI_GOTO_SCENE_01
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DALI Control Device using XC836 DALI Board
Getting Started
4.3
Software Package
The file description for the software package is documented in Table 3 and Table 4.
Table 3
Source files description
Filename
Description
DALIKIT_Master.dav
DAvE project
DALIKIT_Master.uvproj
Uvision project
MAIN.c
Performs main program initialisation
IO.c
Performs GPIO module initialisation
RTC.c
Performs RTC module initialisation
T01.c
Performs Timer 0 module initialisation for application control functions inclusive
of DALI frame transmission activities.
T2.c
Performs Timer 2 module initialisation for DALI command interpreter functions
inclusive of DALI frame reception activities.
START_XC.A51
Start up code for XC8xx device. This is part of the C51 Compiler package.
INT.c
Performs Interrupt functions initialisation
BOOTROM_ADDR.A51
Library address for bootrom user routines
SHARED_INT.c
Shared interrupts; LEDTS and RTC interrupt handling sections;
Table 4
Header files description
Filename
Description
MAIN.h
SFR Header file for XC836 Microcontroller
IO.h
GPIO function prototypes and macros
RTC.h
RTC prototypes and macros
T01.h
Timer 01 function prototypes and macros
T2.h
Timer 2 function prototypes and macros
INT.h
Interrupt function prototypes and macros
SHARED_INT.h
Shared interrupt function prototypes and macros
config.h
Definitions of Address and DALI command assignments
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DALI Control Device using XC836 DALI Board
Summary
5
Summary
Infineon microcontrollers provides a great deal of flexibility for the creation of a wide variety of robust applications
for the users. This application note demonstrates the ease of creating a DALI control device, using the general
purpose port module and real-time clock module in the XC836. With the given instructions, the user can customise
this solution to their application, making it easy to use in any DALI network.
6
References
[1]
IEC 62386 Digital addressable lighting interface; Part 101: General requirements - System (Edition 1.0, 200906)
[2]
IEC 62386 Digital addressable lighting interface; Part 102: General requirements - Control gear (Edition 1.0,
2009-06)
[3]
AP08102 DALI Control Gear Software Stack
[4]
XC836 User Manual 1.0
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DALI Control Device using XC836 DALI Board
References
APPENDIX - DALI Control Board
Schematic for KIT_DALI_RGB_XC836_DKV1
Figure 14
DALI Control Board Schematic - Part 1
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DALI Control Device using XC836 DALI Board
References
Figure 15
DALI Control Board Schematic - Part 2
Application Note
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DALI Control Device using XC836 DALI Board
References
X1
DALI Control Board
(KIT_DALI_RGB_XC836_DKV1)
FRONT
Figure 16
BACK
DALI Control Board Layout
Application Note
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w w w . i n f i n e o n . c o m
Published by Infineon Technologies AG
AP08133
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