Atmel AT06409: DALI Master with ATxmega32E5 User...

APPLICATION NOTE

Atmel AT06409: DALI Master with ATxmega32E5 User Guide

Atmel 8-bit Microcontroller

Description

The Atmel® DALI Master with ATxmega32E5 evaluation kit is a hardware platform to evaluate the Atmel ATxmega32E5 Microcontroller on the implementation for DALI system.

The kit offers a standard DALI Master features which follow the DALI protocol. It enables the Atmel AVR® XMEGA® user to get started using XMEGA peripherals right away and understand how to integrate the XMEGA device in their own design.

For this reference design, the hardware design files (Schematic, BOM, and PCB Gerber) and software source code can be downloaded from Atmel website. The provided hardware documentation can be used with no limitations to manufacture the reference hardware solution for the design.

Features

• Atmel AVR ATxmega32E5

• Guide user to implement the DALI Master function

• Build up the full DALI system together with DALI Slave

Figure 1. DALI Master with ATxmega32E5 Evaluation Kit

42224B−AVR−01/2014

Atmel AT06409: DALI Master with ATxmega32E5 User Guide [APPLICATION NOTE] 42224B−AVR−01/2014

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Table of Contents

1. Related Items ....................................................................................... 3

2. Overview .............................................................................................. 4 2.1 System Overview .............................................................................................. 4

3. Sockets and Connectors ...................................................................... 6 3.1 USB Interface .................................................................................................... 6 3.2 RS232 Interface (not mounted) ......................................................................... 6 3.3 DALI Bus Power Supply .................................................................................... 7 3.4 DALI Bus Interface ............................................................................................ 8 3.5 Port Selection .................................................................................................... 8 3.6 Programming Header ........................................................................................ 9

4. System Setup ..................................................................................... 10

5. Firmware ............................................................................................ 11 5.1 Default Firmware in ATxmega32E5 ................................................................ 11 5.2 Firmware in ATSAM4LC2A ............................................................................. 11

6. Software ............................................................................................. 12 6.1 USB Driver Installation .................................................................................... 12 6.2 PC Software Installation .................................................................................. 15 6.3 PC Software Configuration .............................................................................. 18 6.4 PC Software Guide ......................................................................................... 21

7. Revision History ................................................................................. 24


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1. Related Items The following list contains links to the most relevant documents, software and tools for the Atmel DALI Master with ATxmega32E5 evaluation kit:

Atmel Studio 6

Atmel Studio 6 is a free Atmel IDE for development of C/C++ and assembler code for Atmel microcontrollers.

Atmel SAM-ICE

Atmel SAM-ICE™ is a JTAG emulator designed for Atmel SAMA5, SAM3, SAM4, SAM7, and SAM9 ARM® core-based microcontrollers, including the Thumb mode. It supports download speeds up to 720KB per second and maximum JTAG speeds up to 12MHZ. It also supports Serial Wire Debug (SWD) and Serial Wire Viewer (SWV) from SAM-ICE hardware V6.

Atmel JTAGICE3

JTAGICE3 is a mid-range development tool for Atmel 8- and 32-bit AVR microcontrollers with on-chip debugging for source level symbolic debugging, NanoTrace (if supported by the device) and device programming.

Atmel AVR JTAGICE mkII

AVR JTAGICE mkII is a mid-range development tool for Atmel 8- and 32-bit AVR devices with on-chip debugging for source level symbolic debugging, NanoTrace (if supported by the device), and device programming (superseded by JTAGICE3).

Atmel AVR ONE!

AVR ONE! is a professional development tool for all Atmel 8- and 32-bit AVR devices with on-chip debug capability. It is used for source level symbolic debugging, program trace, and device programming. The AVR ONE! supports the complete development cycle and is the fastest debugging tool offered from Atmel.

Atmel AVR Dragon

AVR Dragon™ sets a new standard for low cost development tools for 8- and 32-bit AVR devices with on-chip debug (OCD) capability.

ATxmega32E5

The Atmel AVR XMEGA E series is the first AVR XMEGA series with 32 pins that are available in the smallest 4mm x 4mm QFN packaging targeting space constrained applications.

ATSAM4LC2A

A member of the Atmel SAM4L family of Flash microcontrollers based on the ARM Cortex®-M4 processor, the ATSAM4LC2A delivers the lowest power in active mode (90µA/MHz) as well as sleep mode (1.5µA) and the shortest wake-up time (down to 1.5µs) in a Cortex-M4 device.

http://www.atmel.com/microsite/atmel_studio6/default.aspx�

http://www.atmel.com/tools/atmelsam-ice.aspx�

http://www.atmel.com/tools/jtagice3.aspx�

http://www.atmel.com/tools/avrjtagicemkii.aspx�

http://www.atmel.com/tools/avrone_.aspx�

http://www.atmel.com/tools/avrdragon.aspx�

http://www.atmel.com/devices/atxmega32e5.aspx�

http://www.atmel.com/devices/atsam4lc2a.aspx�


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2. Overview The Atmel DALI Master with ATxmega32E5 evaluation kit is intended to demonstrate the AVR ATxmega32E5 Microcontroller.

2.1 System Overview

Figure 2-1. Overview of the DALI Master with ATxmega32E5 Evaluation Kit


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Figure 2-2. System Block Diagram

MCUATxmega32E5

AdapterDC 16V

LDO

PC

MCUATSAM4LC2A

TXD

RXD DALI Interface

DALI Out

DALI In

DALI Bus Power Supply

USB

DALI Slave 1

DALI Slave 2

DALI Slave n…

DALI Slave 3

VBUS 3.3V

DALI Bus

RS232RS232


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3. Sockets and Connectors

3.1 USB Interface The USB interface is dedicated for PC for DALI control. It also supplies the power to the board.

Table 3-1. Definition for the USB Interface

Pin number of USB header Pin definition

1 VBUS

2 DM

3 DP

4 ID

5 GND

Figure 3-1. USB Connection to PC

3.2 RS232 Interface (not mounted) The RS232 interface can also control the DALI Master kit. The components in RS232 part are not mounted. User can mount them if needed. The BOM of this part is shown in Table 3-2.

Table 3-2. BOM of the RS232 Part

Designator Value Description Manufacturer MPN

C6,C8,C9,C12,C13 100nF Ceramic capacitor, SMD 0603, X7R, 16V,10%

Murata GRM188R71C104KA01D

C7 4.7µF Ceramic capacitor, SMD 0603, X5R, 6.3V, 10%

Murata GRM188R60J475KE19D

J4 DB9 DSUB9, right angle, THM, Female Harting 09-66-152-7611

U5 MAX3232ESE RS-232 TRANSCEIVER, SO16, SMD Maxim MAX3232ESE

Note: If user uses RS232 as the communication port to PC, the USB cable will still need connected to PC or 5V adapter to power the kit.


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Figure 3-2. RS232 Port if Mounted

3.3 DALI Bus Power Supply To convenient to build up the DALI system, the DALI Master contains the power supply socket for the DALI bus power supply.

Following the DALI protocol, the DALI bus needs a 16V/500mA DC supply applied on the DALI bus. The 16V DC comes from the adapter, any polarity for the 16V DC will be ok for the DALI bus power supply.

The DALI bus signal are differential signal, the DALI bus power supply cannot share the same ground with the USB input power supply.

Table 3-3. Polarity of DALI Bus Power Supply

Pin of DALI bus power supply socket Polarity

1 16 V+ or 16V-

2 16 V- or 16V+

In this kit, the on board DALI bus power supply is designed support upto 16 DALI Slaves. If the user needs more, the 16V adapter needs be removed, and an external DALI bus power supply needs be added on the DALI bus.

Figure 3-3. DALI Bus Power Supply


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3.4 DALI Bus Interface The DALI socket is the interface to connect DALI Slaves.

Figure 3-4. DALI Bus Connection with DALI Slave

3.5 Port Selection The evaluation kit has two communication interfaces with PC, one is USB and another is RS232, the port selection header gives the option for the two interfaces. Pin 1, 3, 5 of J1 is dedicated for TX and pin 2, 4, 6 for Rx. Two jumpers need placed on the Rx and Tx header to select which interface are enabled.

For example, if user wants using USB port as the communication port to PC, the jumpers need be placed on the lower side of J1: pin3 and pin5 needs be shorted by jumper, pin4 and pin6 needs to be shorted by another jumper.

Note: The RS232 part is not mounted on this kit; it can be mounted by user.

Figure 3-5. Port Selection Port


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3.6 Programming Header The ATxmega32E5 can be programmed and debugged by connecting an external programming/debugging tool to the PDI header shown in Table 3-4.

Table 3-4. ATxmega32E5 Programming and Debugging Interface – PDI

Pin on programming header PDI

1 DATA

2 VCC

3 -

4 -

5 CLK

6 GND


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4. System Setup The DALI system needs DALI Master, DALI Slaves, DALI bus, DALI bus power supply, USB cable, and PC. The basic DALI system can be setup as Figure 4-1.

Figure 4-1. DALI System Setup


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5. Firmware

5.1 Default Firmware in ATxmega32E5 The ATxmega32E5 on the DALI Master evaluation kit is pre-programmed a default firmware which acts as a standard DALI Master following the DALI protocol. The code can be updated or re-programmed via PDI interface, the PDI header is described in Table 3-4.

5.2 Firmware in ATSAM4LC2A ATSAM4LC2A acts as a USB to UART Bridge; it transfers the commands between the PC and ATxmega32E5 via USB cable. The firmware can be found in the enclosed package.

The code in ATSAM4LC2A also can be re-programmed via the JTAG, but the JTAG header is not mounted by default, if user needs update the firmware, he has to mount the socket himself.

It is recommended to use the SAM-ICE under Atmel Studio to re-program the ATSAM4LC2A.


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6. Software

6.1 USB Driver Installation To use the USB to UART driver which carried on the kit, a USB driver needs be installed in the PC while the USB is connected the first time.

The process below will guide user how to install the USB driver under Windows® XP.

• Step 1 Connect the DALI Master kit to PC via USB cable, the system will found a new hardware.

Figure 6-1. New Hardware Found

• Step 2 Then, the system will attempt to install the USB CDC driver, please select the “Install from a list or specific location” item, and “Next”.

Figure 6-2. Wizard to Install the Driver


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• Step 3 Browse the location to folder “…\source\SAM4LC2A Firmware\DALI_MASTER_USB_CDC” and “Next”.

Figure 6-3. Find the Driver Address Folder

• Step 4 A warning may appear, press “Continue Anyway”.

Figure 6-4. Warning for Installation


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• Step 5 The driver will start to install. Just wait…

Figure 6-5. Installation on Processing

• Step 6 The installation will be done successfully.

Figure 6-6. Driver Installation Finished


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• Step 7 Then, the kit will be ready to use.

Figure 6-7. USB Device is Ready

6.2 PC Software Installation The PC needs install software before control the DALI system.

To run the PC software, make sure the PC is “Microsoft® .NET Framework 4.0” installed. Considering the Atmel Studio 6.0 will require the Framework 4.0 installed, if the PC has Atmel Studio 6 or above installed, the DALI Master PC software will be free to run. The software can be found in the attached folder “…\source\PCSoftware\Setup\Release”.

Figure 6-8. Setup Folder

• Step 1 Double click the “setup.exe”.


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Figure 6-9. Setup Wizard

• Step 2 Select a folder to install the software. And “Next”

Figure 6-10. Configure the Installation Folder


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• Step 3 Click “Next”.

Figure 6-11. Confirm Installation

• Step 4 Click “Next”.

Figure 6-12. Installing


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• Step 5 Then, the installation will complete, press “Close”

Figure 6-13. Installation Done

6.3 PC Software Configuration Once the DALI Master software is installed, a new program will be found in the installation folder.

Figure 6-14. New Program Installed

Double click the “DALI Tools.exe”.

Note: The software need user to configure the communication port first


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Figure 6-15. Warning with No COM Port Found

Click “OK” to configure the COM port.

It is quite important to select a correct COM port for the DALI Tools. If user does not know which COM port is the right one, he can open the Device Manager to check the Port (COM and LPT) item.

An ASF example COM port will be appeared in the Port list, as shown in the Figure 6-16, the port in the red circle is just the one which DALI Master needs connect with.

Figure 6-16. Device Manager


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Then select the COM20 channel in the window shown below. Leave other items in Figure 6-17 as default.

Figure 6-17. Communication Edit

Click “OK”

Note: The above Communication Edit window can also be found in DALI Tools->Menu->Setting->Setting.

Figure 6-18. The Main Interface of the DALI Tools


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6.4 PC Software Guide From the “Commands” label, user can select the command type as Broadcast, Muticast (Group Number) or Unicast (Address).

Figure 6-19. The Command Type

The software support all the DALI commands, these commands can be selected from the Commands List.

Figure 6-20. The Command List

The most frequently used commands are listed in the right side, click the commands directly can realize the fast control.


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Figure 6-21. The General Commands

The label “Auto Control” is used for the command list; user can edit the command list to run the DALI commands in batch.

Figure 6-22. The DALI Commands Auto Control List

While the DALI system build up, the DALI Master may need addresses the DALI Slaves, the “Addressing” tab gives this function. Press the “Start” while the DALI system are well connected, then the DALI Master will start to address the DALI Slaves. Then, the available DALI Slaves will be listed in the left side.

Then, the user can control the addressed DALI Slave via Short address.


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Figure 6-23. Addressing the DALI Slaves


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7. Revision History Doc. Rev. Date Comments

42224B 01/2014 Section 3.3 has been updated

42224A 12/2013 Initial document release

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© 2014 Atmel Corporation. All rights reserved. / Rev.: 42224B−AVR−01/2014

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