Silicon Laboratories C8051F41 Series User manual

Rev. 0.3 2/14 Copyright © 2014 by Silicon Laboratories C8051F41x
C8051F41x
C8051F41XDEVELOPMENT KIT USER’SGUIDE
1. Kit Contents
The C8051F41x Development Kit contains the following items:
• C8051F410 Target Board
• C8051Fxxx Development Kit Quick-Start Guide
• AC to DC Power Adapter
• USB Debug Adapter (USB to Debug Interface)
• USB Cable
• CD-ROM
2. 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 1.
1. Connect the USB Debug Adapter to the DEBUG connector on the target board with the 10-pin ribbon cable.
2. Connect one end of the USB cable to the USB connector on the USB Debug Adapter.
3. Connect the other end of the USB cable to a USB Port on the PC.
4. Connect the ac/dc power adapter to power jack P1 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 1. Hardware Setup Using a USB Debug Adapter
PC
USB
Cable
USB Debug Adapter
AC/DC
Adapter
Target Board
SILICON LABORATORIES
PWR
P1.6
P3.7RESET
Port 4Port 3Port 1
Port 2 Port 0
MCU
Silicon Laboratories
USB DEBUG ADAPTER
Run
StopPower

C8051F41x
2 Rev. 0.3
3. Software Setup
Simplicity Studio greatly reduces development time and complexity with Silicon Labs EFM32 and 8051 MCU
products by providing a high-powered IDE, tools for hardware configuration, and links to helpful resources, all in
one place.
Once Simplicity Studio is installed, the application itself can be used to install additional software and
documentation components to aid in the development and evaluation process.
Figure 2. Simplicity Studio
The following Simplicity Studio components are required for the C8051F410 Development Kit:
8051 Products Part Support
Simplicity Developer Platform
Download and install Simplicity Studio from www.silabs.com/8bit-software or www.silabs.com/simplicity-studio.
Once installed, run Simplicity Studio by selecting StartSilicon LabsSimplicity StudioSimplicity Studio
from the start menu or clicking the Simplicity Studio shortcut on the desktop. Follow the instructions to install the
software and click Simplicity IDE to launch the IDE.
The first time the project creation wizard runs, the Setup Environment wizard will guide the user through the
process of configuring the build tools and SDK selection.
In the Part Selection step of the wizard, select from the list of installed parts only the parts to use during
development. Choosing parts and families in this step affects the displayed or filtered parts in the later device
selection menus. Choose the C8051F41x family by checking the C8051F41x check box. Modify the part selection
at any time by accessing the Part Management dialog from the WindowPreferencesSimplicity
StudioPart Management menu item.
Simplicity Studio can detect if certain toolchains are not activated. If the Licensing Helper is displayed after
completing the Setup Environment wizard, follow the instructions to activate the toolchain.

C8051F41x
Rev. 0.3 3
3.1. Running Blinky
Each project has its own source files, target configuration, SDK configuration, and build configurations such as the
Debug and Release build configurations. The IDE can be used to manage multiple projects in a collection called a
workspace. Workspace settings are applied globally to all projects within the workspace. This can include settings
such as key bindings, window preferences, and code style and formatting options. Project actions, such as build
and debug are context sensitive. For example, the user must select a project in the Project Explorer view in order
to build that project.
To create a project based on the Blinky example:
1. Click the Simplicity IDE tile from the Simplicity Studio home screen.
2. Click the Create new project link from the welcome screen or go to FileNewSilicon Labs MCU
Project.
3. In the Kit drop-down, select C8051F410 Development Kit, in the Part drop-down, select C8051F410, and
in the SDK drop-down, select the desired SDK. Click Next.
4. Select Example and click Next.
5. Under C8051F410 Development Kit in the Blinky folder, select F41x Blinky and click Finish.
6. Click on the project in the Project Explorer and click Build, the hammer icon in the top bar. Alternatively,
go to ProjectBuild Project.
7. Click Debug to download the project to the hardware and start a debug session.
8. Press the Resume button to start the code running. The LED should blink.
9. Press the Suspend button to stop the code.
10. Press the Reset the device button to reset the target MCU.
11. Press the Disconnect button to return to the development perspective.
3.2. Simplicity Studio Help
Simplicity Studio includes detailed help information and device documentation within the tool. The help contains
descriptions for each dialog window. To view the documentation for a dialog, click the question mark icon in the
window:
This will open a pane specific to the dialog with additional details.
The documentation within the tool can also be viewed by going to HelpHelp Contents or HelpSearch.

C8051F41x
4 Rev. 0.3
3.3. Legacy 8-bit IDE
Note: Using the Simplicity Studio tools with the C8051F410 Development Kit is recommended. See section 3. "Software
Setup‚" on page 2 for more information.
Download the 8-bit software from the website (www.silabs.com/8bit-software) or use the provided installer on the
CD-ROM to install the software tools for the C8051F41x devices. After installation, examples can be found in
...\Examples\C8051F41x in the installation directory. At a minimum, the C8051F410 DK requires:
Silicon Labs IDE—Software enabling initial evaluation, development, and debugging.
Configuration Wizard 2—Initialization code generation software for the C8051F41x devices.
Keil C51 Tools—Keil 8051 Compiler/Assembler/Linker toolchain.
Other software available includes:
Keil µVision Driver—Driver for the Keil µVision IDE that enables development and debugging on
C8051Fxxx MCUs.
Flash Programming Utilities and MCU Production Programmer—Programming utilities for the
production line. More information on the available programming options can be found on the website:
http://www.silabs.com/products/mcu/Pages/ProgrammingOptions.aspx.
ToolStick Development Tools—Software and examples for the ToolStick development platform. More
information on this platform can be found at www.silabs.com/toolstick.
The development kit includes the latest version of the C51 Keil 8051 toolset. This toolset is initially limited to a code
size of 2 kB and programs start at code address 0x0800. After registration, the code size limit is removed entirely
and programs will start at code address 0x0000.
To register the Keil toolset:
1. Find the Product Serial Number printed on the CD-ROM. If you no longer have this serial number,
register on the Silicon Labs website (www.silabs.com/8bit-software) to obtain the serial number.
2. Open the Keil µVision4 IDE from the installation directory with administrative privileges.
3. Select FileLicense Management to open the License Management window.
Figure 3. Keil µVision4 IDE License Management Window
4. Click on the Get LIC via Internet... button to open the Obtaining a License IDE Code (LIC) window.
5. Press OK to open a browser window to the Keil website. If the window doesn’t open, navigate to
www.keil.com/license/install.htm.
6. Enter the Silicon Labs Product Serial Number printed on the CD-ROM, along with any additional required

C8051F41x
Rev. 0.3 5
information.
7. Once the form is complete, click the Submit button. An email will be sent to the provided email address
with the license activation code.
8. Copy the License ID Code (LIC) from the email.
9. Paste the LIC into the New License ID Code (LIC) text box at the bottom of the License Management
window in µVision4.
10. Press the Add LIC button. The window should now list the PK51 Prof. Developers Kit for Silabs as a
licensed product.
11. Click the Close button.

C8051F41x
6 Rev. 0.3
4. Target Board
The C8051F41x Development Kit includes a target board with a C8051F410 device 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 4 for the locations of the various I/O connectors.
P1 Power connector (accepts input from 7 to 15 VDC unregulated power adapter)
J1 22-pin Expansion I/O connector
J3 Port I/O Configuration Jumper Block
J4 DEBUG connector for Debug Adapter interface
J5 DB-9 connector for UART0 RS232 interface
J6 Analog I/O terminal block
J7 Connector for IDAC0 voltage circuit
J8 USB Debug Adapter target board power connector
J9, J10 External crystal enable connectors
J11 Connector for IDAC1 voltage circuit
J12 Connector block for Thermistor circuitry
J13, J14 ADC external voltage reference connectors
Figure 4. C8051F410 Target Board
DEBUG
P1
J5
Prototype Area
J11 C8051
F410
P1.4 P1.5
RESET
P2.3
P2.1
J33
R21
J4
J10
J19
J9
R23
J26
J24
J23
D1
D2
J21
J32
J12
J17
J30
BH1
J15
J25
J15
J25 D12
J6
J16
J1 J3
J27
J18
J29
J2
J7

C8051F41x
Rev. 0.3 7
4.1. System Clock Sources
The C8051F410 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 (±2%) 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 C8051F410 device at a
frequency not available with the internal oscillator, an external crystal may be used. Refer to the C8051F41x data
sheet for more information on configuring the system clock source.
The target board is designed to facilitate the installation of an external crystal. Remove shorting blocks at headers
J9 and J18 and install the crystal at the pads marked Y2. Install a 10 Mresistor at R4 and install capacitors at
C44 and C43 using values appropriate for the crystal you select. Refer to the C8051F41x data sheet for more
information on the use of external oscillators. The target board also has a 32.768 kHz watch crystal installed to
provide a timebase for the smaRTClock. Jumper J26 may be used to short the XTAL3 and XTAL4 pins if internal
clock mode is desired.
4.2. Power Options
The C8051F41x Target Board has many power options. This allows the user to exercise the different operating
modes of the C8051F410. The board has 2 voltage regulators. A 3.3 V LDO and a 1.2–5.25 V variable regulator.
To use the 3.3 V regulator, pin 2–3 of J9 should be shorted and a jumper installed in J10.
To use the variable regulator, pin 1–2 of J19 should be shorted and an output voltage should be selected using J21.
After selecting the appropriate voltage, pin 1–2 of J21 should be shorted to enable the output of the variable
regulator. If the voltage "VAR" is selected, the potentiometer R23 should be adjusted until the desired voltage is
reached. The input to the variable regulator can be obtained from the unregulated 9 V supply or from the 5 V USB
VBUS supply available when using a USB debug adapter.
Note: Before enabling either voltage regulator, the user should check the 4 supply rail selection headers
(J29+J30, J17, J12, J31+32) to ensure the correct voltage is being routed to the correct power pin. An
incorrect jumper setting may permanently damage the board. Note that VDD cannot exceed 2.5 V and is
typically derived from the on-chip regulator. Do not connect the 5.25 or 3.3 V output directly to VDD.
The three power LEDs for VIO, VREG, and VDD indicate if the appropriate supply rail is connected to a power
supply. Check to make sure all supply rails (with exception of VREG if not using the on-chip regulator) are
powered.
For the VIO voltage rail, the user may choose from the 3 V regulator (+3 VD), the variable regulator, or the on-chip
regulator. The selections are marked on the target board silkscreen.
For the VREG on-chip voltage regulator input, the user may choose from the 3 V regulator (+3VD), the 5 V USB
VBUS source obtained from the USB debug adapter (5VEC3), or from the variable regulator (VREG). The
selections are marked on the target board silkscreen.
For VDD, the user may choose the output of the on-chip regulator (VDD_) or the output of the variable regulator
(VREG).
4.3. Switches and LEDs
Three switches are provided on the target board. Switch SW1 is connected to the RESET pin of the C8051F410.
Pressing SW1 puts the device into its hardware-reset state. Switch SW2 and SW3 are connected to the
C8051F410’s general purpose I/O (GPIO) pins through headers. Pressing SW2 or SW3 generates a logic low
signal on the port pin. Remove the shorting block from the jumper J5 to disconnect SW2 and/or SW3 from their
associated port pins. The port pin signals are also routed to pins on the J11 I/O connector. See Table 1 for the port
pins and headers corresponding to each switch.
Three 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 with port pin names are connected to the C8051F410’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 I/O connector. See Table 1 for the port pins and headers
corresponding to each LED.

C8051F41x
8 Rev. 0.3
4.4. Expansion I/O Connector (J1)
The 24-pin Expansion I/O connector J11 provides access to all signal pins of the C8051F410 device. A small
through-hole prototyping area is also provided. All I/O signals routed to connector J1 are also routed to through-
hole connection points between J11 and the prototyping area (see Figure 4 on page 6). Each connection point is
labeled indicating the signal available at the connection point. See Table 2 for a list of pin descriptions for J1.
Table 1. Target Board I/O Descriptions
Description I/O Jumper
SW1 Reset none
SW2 P1.4 J5[3–4]
SW3 P1.5 J5[7–8]
Green LED D3 P2.1 J5[1–2]
Green LED D5 P2.3 J5[5–6]
Red LED D1 VREGIN J24
Red LED D2 VDD J23
Red LED D12 VIO J33
Table 2. J1 Pin Descriptions
Pin # Description Pin # Description
1 P0.0 13 P1.4
2 P0.1 14 P1.5
3 P0.2 15 P1.6
4 P0.3 16 P1.7
5 P0.4 17 P2.0
6 P0.5 18 P2.1
7 P0.6 19 P2.2
8 P0.7 20 P2.3
9P1.0 21
P2.4
10 P1.1 22 P2.5
11 P1.2 23 P2.6
12 P1.3 24 P2.7

C8051F41x
Rev. 0.3 9
4.5. Target Board DEBUG Interface (J4)
The DEBUG connector (J4) provides access to the DEBUG (C2) pins of the C8051F410. It is used to connect the
Serial Adapter or the USB Debug Adapter to the target board for in-circuit debugging and Flash programming.
Table 3 shows the
DEBUG pin definitions.
4.6. Serial Interface (J5)
A RS232 transceiver circuit and DB-9 (J5) connector are provided on the target board to facilitate serial
connections to UART0 of the C8051F410. The TX, RX, RTS and CTS signals of UART0 may be connected to the
DB-9 connector and transceiver by installing shorting blocks on header J3.
J27[1–2]- Install shorting block to connect UART0 TX (P0.4) to transceiver.
J27[3–4]- Install shorting block to connect UART0 RX (P0.5) to transceiver.
J27[5–6]- Install shorting block to connect UART0 RTS (P1.4) to transceiver.
J27[7–8]- Install shorting block to connect UART0 CTS (P1.5) to transceiver.
4.7. Analog I/O (J6)
Many of the C8051F410 target device’s port pins are connected to the J2 terminal block. Connections for VDDA,
AGND, ADC external voltage references, IDAC outputs and ADC inputs are available. Refer to Table 4 for the J6
terminal block connections.
Table 3. DEBUG Connector Pin Descriptions
Pin # Description
1 +3VD(+3.3VDC)
2, 3, 9 GND (Ground)
4C2D
5/RST(Reset)
6P3.0
7C2CK
8 Not Connected
10 USB Power
Table 4. J6 Terminal Block Pin Descriptions
Pin # Description
1 P0.0/IDAC0
2 P0.1/IDAC1
3VREFIN
4GND
5AIN0
6AIN1

C8051F41x
10 Rev. 0.3
4.8. IDAC Connectors (J7, J11)
The C8051F410 target board also features two Current-to-Voltage 750 load resistors that may be connected to
the 2-bit current-mode Digital-to-Analog Converters (IDACs) on port pins P1.0 and P1.1. Install a shorting block on
J13 to connect the IDAC0/P1.0 pin of the target device to a load resistor. Install a second shorting block on J14 to
connect the IDAC1/P1.1 pin of the target device to a load resistor. The IDAC signals are then routed to the J1 and
J13 and J14 connectors.
4.9. USB Debug Adapter Target Board Power Connector (J8)
The USB Debug Adapter includes a connection to provide power to the target board. This connection is routed
from J4[10] to J8[1]. Place a shorting block at header J8[2–3] to power the board directly from an ac/dc power
adapter. Place a shorting block at header J8[1-2] to power the board from the USB Debug Adapter. The second
option is not supported with either the EC1 or EC2 Serial Adapters.
4.10. smaRTClock (Real Time Clock)
The C8051F41x Target Board is designed for developing system using the on-chip smaRTClock. A 32 kHz watch
crystal is installed in Y1 and a battery holder (BH1) is installed for use as a backup power source. To connect the
battery to the VBAT input on the MCU, connect pin 1 and 2 of J30 and short J29. The variable voltage regulator
with potentiometer (R23) may also be used to generate the battery voltage and simulate a battery in its various
charge conditions. See the C8051F41x data sheet for more details about the smaRTClock.

C8051F41x
Rev. 0.3 11
5. Schematics
Figure 5. C8051F410 Target Board Schematic (Page 1 of 3)

C8051F41x
12 Rev. 0.3
Figure 6. C8051F410 Target Board Schematic (Page 2 of 3)

C8051F41x
Rev. 0.3 13
Figure 7. C8051F410 Target Board Schematic (Page 3 of 3)

C8051F41x
14 Rev. 0.3
DOCUMENT CHANGE LIST
Revision 0.2 to Revision 0.3
Removed Section 9. USB Debug Adapter. See USB Debug Adapter User's Guide.
Revision 0.3 to Revision 0.4
Updated 3. "Software Setup‚" on page 2.

Disclaimer
Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers
using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific
device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories
reserves the right to make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy
or completeness of the included information. Silicon Laboratories shall have no liability for the consequences of use of the information supplied herein. This document does not imply
or express copyright licenses granted hereunder to design or fabricate any integrated circuits. The products must not be used within any Life Support System without the specific
written consent of Silicon Laboratories.A"Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected
to result in significant personal injury or death. Silicon Laboratories products are generally not intended for military applications. Silicon Laboratories products shall under no
circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons.
Trademark Information
Silicon Laboratories Inc., Silicon Laboratories, Silicon Labs, SiLabs and the Silicon Labs logo, CMEMS®, EFM, EFM32, EFR, Energy Micro, Energy Micro logo and combinations
thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZMac®, EZRadio®, EZRadioPRO®, DSPLL®, ISOmodem ®, Precision32®, ProSLIC®, SiPHY®,
USBXpress® and others are trademarks or registered trademarks of Silicon Laboratories Inc. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of
ARM Holdings. Keil is a registered trademark of ARM Limited.All other products or brand names mentioned herein are trademarks of their respective holders.
http://www.silabs.com
Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701
USA
Simplicity Studio
One-click access to MCU and
wireless tools, documentation,
software, source code libraries &
more. Available for Windows,
Mac and Linux!
IoT Portfolio
www.silabs.com/IoT SW/HW
www.silabs.com/simplicity Quality www.silabs.com/quality Support and Community community.silabs.com

Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Silicon Laboratories:
C8051F410DK