Silicon Laboratories C8051F530A Manual de usuario

C8051F530A-DK

C8051F530A DEVELOPMENT KIT USER’SGUIDE

1. Relevant Devices

The C8051F530A Development Kit is intended as a development platform for the microcontrollers in the

C8051F52xA-53xA MCU family. The members of this MCU family are C8051F520A, C8051F521A, C8051F523A,

C8051F524A, C8051F526A, C8051F527A, C8051F530A, C8051F531A, C8051F533A, C8051F534A,

C8051F536A, and C8051F537A.

Notes:

The target board included in this kit is provided with two pre-soldered C8051F530A-IT MCUs (TSSOP-20

package).

Code developed on the C8051F530A can be easily ported to the other members of this MCU family.

Refer to the C8051F52x/52xA/53x/53xA data sheet for the differences between the members of this MCU

family.

2. Kit Contents

The C8051F530A Development Kit contains the following items:

• C8051F530A Target Board

• C8051Fxxx Development Kit Quick-Start Guide

• Silicon Laboratories IDE and Product Information CD-ROM. CD content includes:

• Silicon Laboratories Integrated Development Environment (IDE)

• Keil 8051 Development Tools (macro assembler, linker, evaluation C compiler)

• Source code examples and register definition files

• Documentation

• C8051F52xA-53xA Development Kit User’s Guide (this document)

• Optional Third Party Tools CD

• AC to DC Power Adapter

• USB Debug Adapter (USB to Debug Interface)

• USB Cable

The development kit target board contains two C8051530A microcontrollers that can communicate through a LIN

network. One of the C8051F530A (U2) can also be connected to a CP2102 USB to UART bridge and directly

connected to two analog signals and a Voltage Reference Signal Input.

The kit includes one USB Debug Adapter. Additionally, a second USB Debug Adapter and a second instance of the

Silicon Labs IDE can be used to communicate with both microcontrollers on the board at the same time using only

one PC.

C8051F530A-DK

2 Rev. 0.3

3. Software Overview

All software required to develop firmware and communicate with the target microcontroller is included in the CD-

ROM. The CD-ROM also includes other useful software.

Below is the software necessary for firmware development and communication with the target microcontroller:

Silicon Laboratories Integrated Development Environment (IDE)

Keil 8051 Development Tools (macro assembler, linker, evaluation C compiler)

Other useful software provided on the CD-ROM includes the following:

Configuration Wizard 2

Keil uVision Drivers

CP210x USB to UART Virtual COM Port (VCP) Drivers

3.1. Software Installation

The included CD-ROM contains the Silicon Laboratories Integrated Development Environment (IDE), Keil software

8051 tools and additional documentation. Insert the CD-ROM into your PC’s CD-ROM drive. An installer will

automatically launch, allowing you to install the IDE software or read documentation by clicking buttons on the

Installation Panel. If the installer does not automatically start when you insert the CD-ROM, run autorun.exe found

in the root directory of the CD-ROM. Refer to the ReleaseNotes.txt file on the CD-ROM for the latest information

regarding known problems and restrictions. After installing the software, see the following sections for information

regarding the software and running one of the demo applications.

3.2. CP210x USB to UART VCP Driver Installation

The C8051F530A Target Board includes a Silicon Laboratories CP2102 USB-to-UART Bridge Controller. Device

drivers for the CP2102 need to be installed before PC software (such as HyperTerminal) can communicate with the

target board over the USB connection. If the "Install CP210x Drivers" option was selected during installation, this

will launch a driver “unpacker” utility.

1. Follow the steps to copy the driver files to the desired location. The default directory is C:\SiLabs\MCU\CP210x.

2. The final window will give an option to install the driver on the target system. Select the “Launch the CP210x

VCP Driver Installer” option if you are ready to install the driver.

3. If selected, the driver installer will now launch, providing an option to specify the driver installation location. After

pressing the “Install” button, the installer will search your system for copies of previously installed CP210x

Virtual COM Port drivers. It will let you know when your system is up to date. The driver files included in this

installation have been certified by Microsoft.

4. If the “Launch the CP210x VCP Driver Installer” option was not selected in step 3, the installer can be found in

the location specified in step 2, by default C:\SiLabs\MCU\CP210x\Windows_2K_XP_S2K3_Vista. At this

location, run CP210xVCPInstaller.exe.

5. To complete the installation process, connect the included USB cable between the host computer and the USB

connector (P1) on the C8051F530A Target Board. Windows will automatically finish the driver installation.

Information windows will pop up from the taskbar to show the installation progress.

6. If needed, the driver files can be uninstalled by selecting “Silicon Laboratories CP210x USB to UART Bridge

(Driver Removal)” option in the “Add or Remove Programs” window.

C8051F530A-DK

Rev. 0.3 3

3.3. Silicon Laboratories IDE

The Silicon Laboratories IDE integrates a source-code editor, a source-level debugger, and an in-system Flash

programmer. See Section 5., "Using the Keil Software 8051 Tools with the Silicon Laboratories IDE‚" on page 6 for

detailed information on how to use the IDE. The Keil Evaluation Toolset includes a compiler, linker, and assembler

and easily integrates into the IDE. The use of third-party compilers and assemblers is also supported.

3.3.1. IDE System Requirements

The Silicon Laboratories IDE requirements:

Pentium-class host PC running Microsoft Windows 2000 or newer.

One available USB port.

64 MB RAM and 40 MB free HD space recommended.

3.3.2. Third Party Toolsets

The Silicon Laboratories IDE has native support for many 8051 compilers. The full list of natively supported tools is

as follows:

Keil

IAR

Raisonance

Tasking

Hi-Tech

SDCC

The demo applications for the C8051F530A Target Board are written to work with the Keil and SDCC toolsets.

3.4. Keil Evaluation Toolset

3.4.1. Keil Assembler and Linker

The Keil demonstration toolset assembler and linker place no restrictions on code size.

3.4.2. Keil Evaluation C51 C Compiler

The evaluation version of the C51 compiler is the same as the full version with the following limitations: (1)

Maximum 4 kB code generation, (2) There is no floating point library included. When installed from the CD-ROM,

the C51 compiler is initially limited to a code size of 2 kB, and programs start at code address 0x0800. Refer to the

Application Note “AN104: Integrating Keil Tools into the Silicon Labs IDE" for instructions to change the limitation to

4 kB and have the programs start at code address 0x0000.

C8051F530A-DK

4 Rev. 0.3

3.5. Configuration Wizard 2

The Configuration Wizard 2 is a code generation tool for all of the Silicon Laboratories devices. Code is generated

through the use of dialog boxes for each of the device's peripherals.

Figure 1. Configuration Wizard 2 Utility

The Configuration Wizard 2 utility helps accelerate development by automatically generating initialization source

code to configure and enable the on-chip resources needed by most design projects. In just a few steps, the wizard

creates complete startup code for a specific Silicon Laboratories MCU. The program is configurable to provide the

output in C or assembly language. For more information, refer to the Configuration Wizard documentation.

Documentation and software is available on the kit CD and from the downloads webpage: www.silabs.com/

mcudownloads.

3.6. Keil µVision2 and µVision3 Silicon Laboratories Drivers

As an alternative to the Silicon Laboratories IDE, the µVision debug driver allows the Keil µVision2 and µVision3

IDEs to communicate with Silicon Laboratories on-chip debug logic. In-system Flash memory programming

integrated into the driver allows for rapidly updating target code. The µVision2 and µVision3 IDEs can be used to

start and stop program execution, set breakpoints, check variables, inspect and modify memory contents, and

single-step through programs running on the actual target hardware. For more information, refer to the µVision

driver documentation. The documentation and software are available from the downloads webpage:

www.silabs.com/mcudownloads.

C8051F530A-DK

Rev. 0.3 5

4. Hardware Setup Using a USB Debug Adapter

The target board is connected to a PC running the Silicon Laboratories IDE via the USB Debug Adapter as shown

in Figure 2.

1. Connect the USB Debug Adapter to one of the DEBUG connectors on the target board (HDR1 or HDR2)

with the 10-pin ribbon cable. The recommended connection is to the HDR2 (connected to U2) as this micro-

controller can be connected to the CP2102 USB to UART bridge.

2. Verify that shorting blocks are installed on J13 and J14 to supply power to the target devices.

3. Connect one end of the USB cable to the USB connector on the USB Debug Adapter.

4. Connect the other end of the USB cable to a USB Port on the PC.

5. Connect the ac/dc power adapter to power jack P5 on the target board.

Notes:

•UsetheReset button in the IDE to reset the target when connected using a USB Debug Adapter.

• Remove power from the target board and the USB Debug Adapter before connecting or disconnecting the

ribbon cable from the target board. Connecting or disconnecting the cable when the devices have power can

damage the device and/or the USB Debug Adapter.

Figure 2. Hardware Setup using a USB Debug Adapter

P1.4_A

P1.4_B

SILICON

LABORATORIES

C8051F530A TB

PWR

P1.7_B

P1.6_B

P0.0_B

DEBUG_B

HDR1

Reset_B

DEBUG_A

HDR2 Reset_A

HDR3

“B” Side

“A” Side

J13

J14

HDR4

USB

Cable

USB Debug Adapter

AC/DC

Adapter

Target Board

Silicon Laboratories

USB DEBUG ADAPTER

Run

StopPower

C8051F530A-DK

6 Rev. 0.3

5. Using the Keil Software 8051 Tools with the Silicon Laboratories IDE

To perform source-level debugging with the IDE, you must configure the Keil 8051 tools to generate an absolute

object file in the OMF-51 format with object extensions and debug records enabled. Build the OMF-51 absolute

object file by calling the Keil 8051 tools at the command line (e.g. batch file or make file) or by using the project

manager built into the IDE. The default configuration when using the Silicon Laboratories IDE project manager

enables object extension and debug record generation.

Refer to Application Note

"AN104: Integrating Keil 8051

Tools into the Silicon Labs IDE"

in the “SiLabs\MCU\Documentation\ApplicationNotes” directory for additional

information on using the Keil 8051 tools with the Silicon Laboratories IDE.

To build an absolute object file using the Silicon Laboratories IDE project manager, you must first create a project.

A project consists of a set of files, IDE configuration, debug views, and a target build configuration (list of files and

tool configurations used as input to the assembler, compiler, and linker when building an output object file).

The following sections illustrate the steps necessary to manually create a project with one or more source files,

build a program, and download it to the target in preparation for debugging. (The IDE will automatically create a

single-file project using the currently open and active source file if you select Build/Make Project before a project

is defined.)

5.1. Creating a New Project

1. Select Project→New Project to open a new project and reset all configuration settings to default.

2. Select File→New File to open an editor window. Create your source file(s) and save the file(s) with a

recognized extension, such as .c, .h, or .asm, to enable color syntax highlighting.

3. Right-click on “New Project” in the Project Window. Select Add files to project. Select files in the file browser

and click Open. Continue adding files until all project files have been added.

4. For each of the files in the Project Window that you want assembled, compiled, and linked into the target build,

right-click on the file name and select Add file to build. Each file will be assembled or compiled as appropriate

(based on file extension) and linked into the build of the absolute object file.

5. If a project contains a large number of files, the “Group” feature of the IDE can be used to organize. Right-click

on “New Project” in the Project Window. Select Add Groups to project. Add pre-defined groups or add

customized groups. Right-click on the group name and choose Add file to group. Select files to be added.

Continue adding files until all project files have been added.

5.2. Building and Downloading the Program for Debugging

1. Once all source files have been added to the target build, build the project by clicking on the Build/Make

Project button in the toolbar or selecting Project→Build/Make Project from the menu.

Note: After the project has been built the first time, the Build/Make Project command will only build the files that have been

changed since the previous build. To rebuild all files and project dependencies, click on the Rebuild All button in the

toolbar or select Project→Rebuild All from the menu.

2. Before connecting to the target device, several connection options may need to be set. Open the Connection

Options window by selecting Options→Connection Options . . . in the IDE menu. First, select the

appropriate adapter in the “Serial Adapter” section. Next, the correct “Debug Interface” must be selected.

C8051F52xA-53xA family devices use the Silicon Labs 2-wire (C2) debug interface. Once all the selections are

made, click the OK button to close the window.

3. Click the Connect button in the toolbar or select Debug→Connect from the menu to connect to the device.

4. Download the project to the target by clicking the Download Code button in the toolbar.

Note: To enable automatic downloading if the program build is successful, select Enable automatic connect/download after

build in the Project→Target Build Configuration dialog. If errors occur during the build process, the IDE will not

attempt the download.

5. Save the project when finished with the debug session to preserve the current target build configuration, editor

settings, and the location of all open debug views. To save the project, select Project→Save Project As . . .

from the menu. Create a new name for the project and click on Save.

C8051F530A-DK

Rev. 0.3 7

6. Example Source Code

Example source code and register definition files are provided in the “SiLabs\MCU\Examples\C8051F52xA_53xA”

directory during IDE installation. These files may be used as a template for code development. Example

applications include a blinking LED example which configures the green LED on the target board to blink at a fixed

rate.

6.1. Register Definition Files

control/status bits. A macro definition header file compiler_defs.h is also included and is required to be able to use

the C8051F520A_defs.h header file with various tool chains. These files are installed by default into the

“SiLabs\MCU\Examples\C8051F52xA_53xA\Header_Files” directory during IDE installation. The register and bit

names are identical to those used in the C8051F52x/52xA/53x/53xA data sheet. The register definition files are

also installed in the default search path used by the Keil Software 8051 tools. Therefore, when using the Keil 8051

tools included with the development kit (A51, C51), it is not necessary to copy a register definition file to each

project’s file directory.

6.2. Blinking LED Example

The example source files F530A_Blinky.asm and F530A_Blinky.c installed in the default directory

“SiLabs\MCU\Examples\C8051F52xA_53xA\Blinky” show examples of several basic C8051F52xA-53xA functions.

These include disabling the watchdog timer (WDT), configuring the Port I/O crossbar, configuring a timer for an

interrupt routine, initializing the system clock, and configuring a GPIO port. When compiled/assembled and linked,

this program flashes the green LED on the C8051F530A Target Board associated with the microcontroller about

five times a second using the interrupt handler with a C8051F530A timer.

C8051F530A-DK

8 Rev. 0.3

7. Target Board

The C8051F52xA-53xA Development Kit includes a target board with two C8051F530A devices pre-installed for

evaluation and preliminary software development. Numerous input/output (I/O) connections are provided to

facilitate prototyping using the target board. Refer to Figure 3 for the locations of the various I/O connectors.

P5 Power connector (Accepts input from 7 to 15 VDC unregulated power adapter.)

PWR Red Power-on LED (D3)

TB1 LIN connector

U5 5 V Voltage Regulator

"A" Side:

J2 28-pin Expansion I/O connector for U2

HDR2 Debug connector for Debug Adapter Interface

P1.3_A Green LED (D2)

Reset_A Reset button

P1.4_A Push button

R32 Potentiometer for P1.2_A

J6, J8 Connects R32 (potentiometer) to U2 and +5 V

J13 Connects power to U2

J11, J12 Connects external crystal to U2 pins P0.7_A and P1.0_A

J3 Connects analog channel 1 to U2 P1.6_A

J4 Connects analog channel 2 to U2 P1.7_A

J5 Connects VREFIN to U2 P0.0_A

TB2 Analog input connector

HDR4 Connector block for serial port connection, Green LED, and push-button

U3 Silicon Laboratories CP2102 USB-to-UART Bridge

P1 USB connector to serial interface (CP2102)

USB ACTIVE Red USB Active LED (D4) (CP2102)

T2 LIN transceiver

U2 C8051F530A "A" Side

"B" Side:

J1 26-pin Expansion I/O connector for U1

HDR1 Debug connector for Debug Adapter Interface

P1.3_B Green LED (D1)

Reset_B Reset button

P1.4_B Push button

J14 Connects power to U1

J9, J10 Connects external crystal to U1 pins P0.7_B and P1.0_B

HDR3 Green LED and push-button connector block

T1 LIN transceiver

U1 C8051F530A "B" Side

C8051F530A-DK

Rev. 0.3 9

7.1. Target Board Shorting Blocks: Factory Defaults

The C8051F530A target board comes from the factory with pre-installed shorting blocks on many headers.

Figure 3 shows the positions of the factory default shorting blocks.

Figure 3. C8051F530A Target Board

7.2. System Clock Sources

The C8051F530A device installed on the target board features a calibrated programmable internal oscillator which

is enabled as the system clock source on reset. After reset, the internal oscillator operates at a frequency of

191.4 kHz (±0.5%) by default but may be configured by software to operate at other frequencies. Therefore, in

many applications an external oscillator is not required. However, if you wish to operate the C8051F530A device at

a frequency not available with the internal oscillator, an external crystal may be used. Refer to the C8051F52x/

52xA/53x/53xA data sheet for more information on configuring the system clock source.

The target board is designed to facilitate the installation of external crystals. Install the crystals at the pads marked

Y1 or Y2. Install a 10 MΩresistor at R17 or R22 and install capacitors at C29 and C30 or C34 and C35 using

values appropriate for the crystals you select. Headers J9, J10, J11, and J12 connect the external crystal pins to

the general purpose I/O headers (J1 and J2). If the external crystal is in use, these headers should not be

populated. Refer to the C8051F52x/52xA/53x/53xA data sheet for more information on the use of external

oscillators.

P1.4_A

P1.4_B

SILICON LABORATORIES

C8051F530A TB

P1.7_A

P1.6_A

P0.0_A

+12V LIN GND

GND CH2 CH1 VRefin

DEBUG_B

HDR1 Reset_B

DEBUG_A

HDR2

Reset_A

HDR3

“B” Side

“A” Side

J13

J14

HDR4

J12

J11

J10

PWR

USB ACTIVE

P1.3_A

P1.3_B

R32

TB1

TB2

Pin 1

C8051F530A-DK

10 Rev. 0.3

7.3. Switches and LEDs

Four switches are provided on the target board.

Switch RESET_A is connected to the RESET pin of the C8051F530A A-Side (U2).

Switch RESET_B is connected to the RESET pin of the C8051F530A B-Side (U1).

Pressing RESET_A or RESET_B puts the attached device into its hardware-reset state.

Switches P1.4_A and P1.4_B are connected to the C8051F530A parts (U1 and U2) general purpose I/O (GPIO)

pins through headers. Pressing P1.4_A or P1.4_B generates a logic low signal on the port pin of the respective

microcontroller.

Remove the shorting block from the header to disconnect P1.4_A or P1.4_B from the port pins. The port pin

signals are also routed to pins on the J1 and J2 I/O connectors. See Table 1 for the port pins and headers

corresponding to each switch.

Four LEDs are also provided on the target board. The red LED labeled PWR is used to indicate a power

connection to the target board. The green LEDs labeled D1 and D2 are connected to the C8051F530A's GPIO pins

through headers. Remove the shorting blocks from the headers to disconnect the LEDs from the port pins. The port

pin signals are also routed to pins on the J1 and J2 I/O connectors. The red LED labeled USB ACTIVE is used to

indicate that the CP2102 USB-to-UART bridge is properly connected to a PC and is ready for communication. See

Table 1 for the port pins and headers corresponding to each LED.

A potentiometer (R32) is provided on the target board. Header J8 connects the potentiometer to +5 V and header

J6 connects the potentiometer to the P1.2_A pin of the U2 A-Side C8051F530A microcontroller.

Table 1. Target Board I/O Descriptions

Description I/O Header

Reset_A U2-Reset none

Reset_B U1-Reset none

P1.4_A U2-P1.4 HDR4[3–4]

P1.4_B U1-P1.4 HDR3[3–4]

Green LED D2 U2-P1.3 HDR4[1–2]

Green LED D1 U1-P1.3 HDR3[1–2]

Red LED D3 PWR none

Red LED D4 USB ACTIVE none

Potentiometer R32 U2-P1.2 J6, J8

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