Silicon Laboratories C8051F38 Series User manual

C8051F38x

C8051F38XDEVELOPMENT KIT USER’SGUIDE

1. Kit Contents

The C8051F38x Development Kit contains the following items:

C8051F380 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.

Use the Reset button in the IDE to reset the target when connected using a USB Debug Adapter.

Remove power from the target board before removing 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

Note: The C8051F380 target board has the ability to be powered through the USB cable. To enable the USB-powered mode,

short the pins labeled VBUS and VREGIN on the J8 header. Do not short all 3 pins on the J8 header.

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

C8051F38x

2 Rev. 0.2

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 C8051F380 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 C8051F38x family by checking the C8051F38x 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.

C8051F38x

Rev. 0.2 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 C8051F380 Development Kit, in the Part drop-down, select C8051F380, and

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

4. Select Example and click Next.

5. Under C8051F380 Development Kit in the Blinky folder, select F38x 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.

C8051F38x

4 Rev. 0.2

3.3. Legacy 8-bit IDE

Note: Using the Simplicity Studio tools with the C8051F380 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 C8051F38x devices. After installation, examples can be found in

...\Examples\C8051F38x in the installation directory. At a minimum, the C8051F380 DK requires:

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

Configuration Wizard 2—Initialization code generation software for the C8051F38x 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,

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

C8051F38x

Rev. 0.2 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.

C8051F38x

6 Rev. 0.2

4. Target Board

The C8051F38x Development Kit includes a target board with a C8051F380 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)

P2 Analog I/O terminal block

P3 USB connector

P4 RS232 connector

J1 Supply signal header

J2 Port 0 header

J3 Port 1 header

J4 Port 2 header

J5 Port 3 header

J6 Port 4 header

J7 Connects the +3V supply net to the VDD supply net

J8 USB Power or VDD power selection header

J9 Debug connector for debug adapter interface

J10, J11 External crystal enable connectors

J12 Port I/O jumper configuration block

J13 96-pin female connector

J15 Jumper connection for pin 1.5 to capacitors (used when VREF is internally generated)

J16 Jumper connection for potentiometer source to VDD

J17 Jumper connection for potentiometer to pin 2.5

J19 Serial Adapter target board power connector

Figure 4. C8051F380 Target Board

C8051F380-TB

DEBUG

RESET

P2.0

P2.1

J15

J11

J12

J19

380

J16

J17

USB

RS232

PWR

SILICON LABORATORIES

J10

J13

SW3 SW2 SW1

R10

C8051F38x

Rev. 0.2 7

4.1. System Clock Sources

The C8051F380 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 1.5 MHz

(±1.5%) 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 C8051F380 device at a

frequency not available with the internal oscillator, an external crystal may be used. Refer to the C8051F38x 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

J10 and J11 and install the crystal at the pads marked Y1. Install a 10 Mresistor at R1 and install capacitors at C6

and C7 using values appropriate for the crystal you select. Refer to the C8051F38x data sheet for more information

on the use of external oscillators.

4.2. Switches and LEDs

Three switches are provided on the target board. Switch RESET is connected to the RESET pin of the C8051F380.

Pressing RESET puts the device into its hardware-reset state. Switches P2.0 and P2.1 are connected to the

C8051F380’s general purpose I/O (GPIO) pins through headers. Pressing P2.0 or P2.1 generates a logic low

signal on the port pin. Remove the shorting blocks from the J12 header to disconnect Switch P2.0 and Switch P2.1

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 switch.

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

connection to the target board. The green surface-mount LEDs labeled with port pin names are connected to the

C8051F380’s GPIO pins through headers. Remove the shorting blocks from the header to disconnect the LEDs

from the port pin. 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.

Also included on the C8051F380 target board is a 10 kThumb-Wheel Rotary Potentiometer, part number R10.

The Potentiometer is connected to the C8051F380’s P2.5 pin through the J17 header. Remove the shorting block

from the header to disconnect the Potentiometer from the port pin. The port pin signal is also routed to a pin on the

J1 I/O connector. See Table 1 for the port pin and header corresponding to the Potentiometer.

Table 1. Target Board I/O Descriptions

Description I/O Header

SW1 Reset none

SW2 P2.0 J12[1–2]

SW3 P2.1 J12[3–4]

Green LED P2.2 J12[5–6]

Green LED P2.3 J12[7–8]

Red LED PWR none

Potentiometer P2.5 J17

C8051F38x

8 Rev. 0.2

4.3. Universal Serial Bus (USB) Interface (J14)

A universal serial bus (USB) connector (P3) is provided to facilitate connections to the USB interface on the

C8051F380. Table 2 shows the J14 pin definitions.

4.4. PORT I/O Connectors (J2 - J6)

In addition to all port I/O signals being routed to the 96-pin expansion connector, each of the five parallel ports of

the C8051F380 has its own 10-pin header connector. Each connector provides a pin for the corresponding port

pins 0–7, +3.3 VDC and digital ground. Table 3 defines the pins for the port connectors. The same pin-out order is

used for all of the port connectors.

4.5. USB Self-Powered Configuration (J8)

The C8051F380 target board can be configured as a self-powered USB device to take power from the USB cable

instead of the ac/dc adapter connected at P1. To configure the target boards as a self-powered USB device, short

the VREGIN and VBUS pins on the J8 header

Note: When the C8051F380 target board is self-powered from the USB, the Serial Adapter is not powered from the target

board. The Serial Adapter must be powered directly by connecting the ac/dc adapter to the Serial Adapters’ dc power

jack. Also, the RS232 Serial Interface (P4) cannot be used when powering the target board from the USB.

Table 2. USB Connector Pin Descriptions

Pin # Description

1 VBUS

2D-

3D+

4 GND (Ground)

Table 3. J12–J19 Port Connector Pin Descriptions

Pin # Description

1Pn.0

2Pn.1

3Pn.2

4Pn.3

5Pn.4

6Pn.5

7Pn.6

8Pn.7

9 +3VD(+3.3VDC)

10 GND (Ground)

C8051F38x

Rev. 0.2 9

4.6. Target Board DEBUG Interface (J9)

The

DEBUG

connector (J9) provides access to the

DEBUG

(C2) pins of the C8051F380. 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 4 shows the

DEBUG

pin definitions.

4.7. Serial Interface (P4)

A RS232 transceiver circuit and DB-9 (P4) connector are provided on the target board to facilitate serial

connections to UART0 of the C8051F380. 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 J12.

J12[9-10]Install shorting block to connect UART0 TX (P0.4) to transceiver.

J12[11-12]Install shorting block to connect UART0 RX (P0.5) to transceiver.

J12[13-14]Install shorting block to connect UART0 RTS (P2.6) to transceiver.

J12[15-16]Install shorting block to connect UART0 CTS (P2.7) to transceiver.

4.8. Analog I/O (P2)

Several of the C8051F380 target device’s port pins are connected to the P2 terminal block. Refer to Table 5 for the

P2 terminal block connections.

4.9. USB Debug Adapter Target Board Power Connector (J19)

The USB Debug Adapter includes a connection to provide power to the target board. This connection is routed

from J9[10] to J19[SER_PWR]. Place a shorting block at header J19[REG_IN-P1_PWR] to power the board

directly from an ac/dc power adapter. Place a shorting block at header J19[REG_IN-SER_PWR] to power the

board from the USB Debug Adapter. Please note that the second option is not supported with either the EC1 or

EC2 Serial Adapters.

Table 4. 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 5. J6 Terminal Block Pin Descriptions

Pin # Description

1 P1.1 / AIN1.1

2 P1.2 / AIN1.2

3 GND (Ground)

4 P1.5 / VREF (Voltage Reference)

C8051F38x

10 Rev. 0.2

5. Schematics

Figure 5. C8051F380 Target Board Schematic (Page 1 of 2)

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