Silicon Laboratories C8051F336 User manual

C8051F336/7/8/9

C8051F336 DEVELOPMENT KIT USER’SGUIDE

1. Relevant Devices

The C8051F338 Development Kit is intended as a development platform for the microcontrollers in the

C8051F336/7/8/9 MCU family.

Notes:

• The target board included in this kit is provided with a pre-soldered C8051F338 MCU (QFN24 package).

• Code developed on the C8051F338 can be easily ported to the other members of this MCU family.

• Refer to the C8051F336/7/8/9 data sheet for the differences between the members of this MCU family.

• The C8051F336/7/8/9 family of devices are code-compatible with the C8051F330/1/2/3/4/5 family of

devices.

2. Kit Contents

The C8051F336 Development Kit contains the following items:

• C8051F338 Target Board

• C8051Fxxx Development Kit Quick-Start Guide

• AC to DC Power Adapter

• USB Debug Adapter (USB to Debug Interface)

• USB Cable

• CD-ROM

3. 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:

• Use the Reset 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

SW3

2102

F338

DEBUG

+3VD

GND

P1.3

USB

P0.7

SW2

RESET

SW1

TB1

SILICON LABS

www.silabs.com

J11

J7 J8

J9 J10

Prototype Area

R14

PWR

USB

Cable

AC/DC

Adapter

Target Board

Silicon Laboratories

USB DEBUG ADAPTER

Run

Stop Power

USB Debug

Adapter

C8051F336/7/8/9

2 Rev. 0.3

4. 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 C8051F338 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 C8051F33x family by checking the C8051F33x 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.

C8051F336/7/8/9

Rev. 0.3 3

4.1. 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 C8051F338 Development Kit, in the Part drop-down, select C8051F338, and

in the SDK drop-down, select the desired SDK. Click Next.

4. Select Example and click Next.

5. Under C8051F338 Development Kit in the Blinky folder, select F336-9 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.

4.2. 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.

C8051F336/7/8/9

4 Rev. 0.3

4.3. Legacy 8-bit IDE

Note: Using the Simplicity Studio tools with the C8051F338 Development Kit is recommended. See section 4. "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 C8051F336/7/8/9 devices. After installation, examples can be found in

...\Examples\C8051F336_9 in the installation directory. At a minimum, the C8051F338 DK requires:

Silicon Labs IDE—Software enabling initial evaluation, development, and debugging.

Configuration Wizard 2—Initialization code generation software for the C8051F336/7/8/9 devices.

Keil C51 Tools—Keil 8051 Compiler/Assembler/Linker toolchain.

CP210x Drivers—Virtual COM Port (VCP) drivers for the CP210x COM interface. More information on this

installation process can be found in Section 4.4.

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,

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

C8051F336/7/8/9

Rev. 0.3 5

www.keil.com/license/install.htm.

6. Enter the Silicon Labs Product Serial Number printed on the CD-ROM, along with any additional required

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.

4.4. CP210x USB to UART VCP Driver Installation

The MCU Card includes a Silicon Labs CP210x USB-to-UART Bridge Controller. Device drivers for the CP210x

need to be installed before the PC software can communicate with the MCU through the UART interface. Use the

drivers included CD-ROM or download the latest drivers from the website (www.silabs.com/interface-software).

1. If using the CD-ROM, the CP210x Drivers option will launch the appropriate driver installer. If downloading

the driver package from the website, unzip the files to a location and run the appropriate installer for the

system (x86 or x64).

2. Accept the license agreement and follow the steps to install the driver on the system. The installer will let

you know when your system is up to date. The driver files included in this installation have been certified by

Microsoft.

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

COM PORT USB connector (J5) on the MCU Card. Windows will automatically finish the driver installation.

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

4. If needed, the driver files can be uninstalled by selecting Windows Driver Package—Silicon

Laboratories... option in the Programs and Features window.

C8051F336/7/8/9

6 Rev. 0.3

5. Target Board

The C8051F336 Development Kit includes a target board with a C8051F338 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. Figure 5 on page 7 shows

the factory default shorting block positions. A summary of the signal names and headers is provided in Table 6 on

page 12.

P1 Power connector (accepts input from 7 to 15 VDC unregulated power adapter)

P2 USB connector (connects to PC for serial communication)

J1 26-pin Expansion I/O connector

J2 MCU power header (VDD)

J3 Port I/O configuration header

J4 DEBUG connector for Debug Adapter interface

J5 USB connector for UART0 interface

J6 Connects pin P0.1 to node IDAC and resistor R2

J7, J8 Connects the potentiometer (R14) to pin P1.6 and +3VD

J9, J10 External crystal enable connectors

J11 Touch Sense Switch connection header

TB1 Analog I/O terminal block

Figure 4. C8051F338 Target Board

SW3

2102

F338

DEBUG

+3VD

GND

P1.3

USB

P0.7

SW2

RESET

SW1

TB1

SILICON LABS

www.silabs.com

J11

J7 J8

J9 J10

Prototype Area

R14

PWR

Prototype Area I/O Connection Points

Pin 2

Pin 1 Pin 2 Pin 1

Pin 2

Pin 1

Pin 2

Pin 1

C8051F336/7/8/9

Rev. 0.3 7

5.1. Target Board Shorting Blocks: Factory Defaults

The C8051F338 target board comes from the factory with pre-installed shorting blocks on many headers. Figure 5

shows the positions of the factory default shorting blocks.

Figure 5. C8051F338 Target Board Shorting Blocks: Factory Defaults

SW3

2102

F338

DEBUG

+3VD

GND

P1.3

USB

P0.7

SW2

RESET

SW1

TB1

SILICON LABS

www.silabs.com

J11

J7 J8

J9 J10

Prototype Area

R14

PWR

Prototype Area I/O Connection Points

Pin 2

Pin 1 Pin 2 Pin 1

Pin 2

Pin 1

Pin 2

Pin 1

C8051F336/7/8/9

8 Rev. 0.3

5.2. Target Board Power Options and Current Measurement

The C8051F338 target board supports three power options:

1. 12 VDC power using the AC to DC power adapter (P1)

2. 5 VDC USB VBUS power from PC via the USB Debug Adapter (J4)

3. 5 VDC USB VBUS power from PC via the CP2102 USB connector (P2)

All the three power sources are ORed together using reverse-biased diodes (D1, D2, D3), eliminating the need for

headers to choose between the sources. The target board will operate as long as any one of the power sources is

present. The ORed power is regulated to a 3.3V DC voltage using a LDO regulator (U2). The output of the

regulator powers the +3VD net on the target board, and is also connected to one end of the header J2. A shorting

block should be installed on J2 to power the VDD net, which powers the C8051F338 MCU. With the shorting block

removed, a multimeter can be used across J2 to measure the current consumption of the MCU.

5.3. System Clock Sources

5.3.1. Internal Oscillators

The C8051F338 device installed on the target board features a factory calibrated programmable high-frequency

internal oscillator (24.5 MHz base frequency, ±2%), which is enabled as the system clock source on reset. After

reset, the internal oscillator operates at a frequency of 3.0625 MHz (±2%) by default but may be configured by

software to operate at other frequencies. For low-frequency operation, the C8051F338 features a programmable

low-frequency internal oscillator (80 kHz base frequency, ±10%). Therefore, in many applications an external

oscillator is not required. However, if you wish to operate the C8051F338 device at a frequency not available with

the internal oscillator, an external crystal may be used. Refer to the C8051F336/7/8/9 data sheet for more

information on configuring the system clock source.

5.3.2. External Oscillator Options

The target board is designed to facilitate the installation of an external crystal. Remove shorting blocks at headers

J9 and J10 and install the crystal at the pads marked Y1. Install a 10 Mresistor at R9 and install capacitors at

C13 and C14 using values appropriate for the crystal you select. If you wish to operate the external oscillator in

capacitor or RC mode, options to install a capacitor or an RC network are also available on the target board.

Populate C14 for capacitor mode, and populate R7 and C14 for RC mode. Refer to the C8051F336/7/8/9 data

sheet for more information on the use of external oscillators.

C8051F336/7/8/9

Rev. 0.3 9

5.4. Switches and LEDs

Two push-button switches are provided on the target board. Switch SW1 is connected to the RESET pin of the

C8051F338. Pressing SW1 puts the device into its hardware-reset state. Switch SW2 is connected to the

C8051F338’s general purpose I/O (GPIO) pin through headers. Pressing SW2 generates a logic low signal on the

port pin. Remove the shorting block from the header to disconnect SW2 from the port pins. The port pin signal is

also routed to a pin on the J1 I/O connector. See Table 1 for the port pins and headers corresponding to each

switch.

One touch sensitive (contactless) switch is provided on the target board. The operation of this switch needs

appropriate code running on the C8051F338 MCU that can sense the state of the switch. All the four shorting

blocks should be present on header J11 to properly connect this switch to the MCU.

Three LEDs are provided on the target board to serve as indicators. The red LED labeled PWR is used to indicate

the presence of power to the target board. The green LED labeled with port pin name P1.3 is connected to the

C8051F338’s GPIO pin P1.3 through the header J3. Remove the shorting block from the header to disconnect the

LED from the port pin. The port pin signal is also routed to a pin on the J1 I/O connector. Another red LED labeled

USB is used to indicate a valid USB connection via the connector P2. See Table 1 for the port pins and headers

corresponding to each LED.

Table 1. Target Board I/O Descriptions

Description I/O Header(s)

SW1 Reset none

SW2 P0.7 J3[3–4]

SW3 (Touch Sense Switch) P1.0, P2.0, P2.1, P2.3 J11

Green LED (P1.3) P1.3 J3[1–2]

Red LED (PWR) Power none

Red LED (USB ACTIVE) USB Active none

C8051F336/7/8/9

10 Rev. 0.3

5.5. Expansion I/O Connector (J1)

The 26-pin Expansion I/O connector J1 provides access to all signal pins of the C8051F338 device. Pins for +3 V,

digital ground and the output of an on-board low-pass filter are also available. 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 J1 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.

5.6. Target Board DEBUG Interface (J4)

The

DEBUG

connector J4 provides access to the

DEBUG

(C2) pins of the C8051F338. 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.

Table 2. J1 Pin Descriptions

Pin # Description Pin # Description

1 +3VD(+3.3VDC) 14 P1.3

2IDAC 15P1.4

3 P0.0 16 P1.5

4 P0.1 17 P1.6

5 P0.2 18 P1.7

6 P0.3 19 P2.0

7 P0.4 20 P2.1

8 P0.5 21 P2.2

9P0.6 22

P2.3

10 P0.7 23 P2.4

11 P1.0 24 /RST

12 P1.1 25 GND

13 P1.2 26 GND

Table 3. DEBUG Connector Pin Descriptions

Pin # Description

1 +3VD(+3.3VDC)

2, 3, 9 GND (Ground)

4 P2.4/C2D

5/RST(Reset)

6P2.4

7 /RST/C2CK

8 Not Connected

10 USB Power (+5VDC from J4)

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