Silicon Laboratories C8051F326/7 User manual

C8051F326/7

C8051F326 DEVELOPMENT KIT USER’SGUIDE

1. Kit Contents

The C8051F326/7 Development Kit contains the following items:

• C8051F326 Target Board

• C8051Fxxx Development Kit Quick-Start Guide

• USB Cable

• AC to DC Power Adapter

• USB Debug Adapter (USB to Debug Interface)

• USB Cable

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

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

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

C8051F326/7

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 C8051F326 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 C8051F326/7 family by checking the C8051F32x 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.

C8051F326/7

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 Software Examples tile from the Simplicity Studio home screen.

2. In the Kit drop-down, select C8051F326 Development Kit, in the Part drop-down, select C8051F326, and

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

3. Select Example and click Next.

4. Under C8051F326 Development Kit in the Blinky folder, select F326-7 BlinkyC and click Next, then

Finish.

5. Click on the project in the Project Explorer and click Build, the hammer icon in the top bar. Alternatively,

go to ProjectBuild Project.

6. Click Debug to download the project to the hardware and start a debug session.

7. Press the Resume button to start the code running. The LED should blink.

8. Press the Suspend button to stop the code.

9. Press the Reset the device button to reset the target MCU.

10. 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.

C8051F326/7

4 Rev. 0.3

4. Target Board

The

C8051F326/7

Development Kit includes a target board with a

C8051F326

device pre-installed for evaluation

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

ing using the target board. Refer to

Figure 3

for the locations of the various I/O connectors.

P1Power connector (accepts input from 7 to 15 VDC unregulated power adapter)

J122-pin Expansion I/O connector

J2Power Target Board from power adapter at P1

J3Port I/O Configuration connector

J4DEBUG connector for Debug Adapter interface

J5DB-9 connector for UART0 RS232 interface

J7VIO to VDD connector

J8USB Debug Adapter target board power connector

J9USB connector for USB interface

J10External CMOS oscillator connector

J11Power Target Board from USB at J9

Figure 3. C8051F326 Target Board

DEBUG

Prototype Area

Pin 2

Pin 1

C8051

F326 Pin 1

P2.1 P2.0 RESET

PWR

P2.3

P2.2

J10

Pin 1 Pin 2

J11

C8051F326/7

Rev. 0.3 5

4.1. System Clock Sources

The

C8051F326

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 applica-

tions an external oscillator is not required. However, if you wish to operate the C8051F326 device at a frequency not

available with the internal oscillator, an external CMOS oscillator may be used. Refer to the

C8051F326/7

datasheet

for more information on configuring the system clock source.

The target board is designed to facilitate the installation of an external CMOS oscillator. Remove shorting block at

header J10 and connect the oscillator output to the header. Refer to the C8051F326/7 datasheet for more informa-

tion on the use of external oscillators.

4.2. Switches and LEDs

Three switches are provided on the target board. Switch S1 is connected to the /RST pin of the C8051F326. Press-

ing S1 puts the device into its hardware-reset state. Switches S2 and S3 are connected to the C8051F326’s gen-

eral purpose I/O (GPIO) pins through headers. Pressing S2 or S3 generates a logic low signal on the port pin.

Remove the shorting blocks from the header to disconnect S2 and S3 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 con-

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

C8051F326’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.

4.3. Universal Serial Bus (USB) Interface (J9)

A Universal Serial Bus (USB) connector (J9) is provided to facilitate connections to the USB interface on the

C8051F326. Table 2 shows the J9 pin definitions.

Table 1. Target Board I/O Descriptions

Description I/O Header

S1 Reset none

S2 P2.0 J3[1–2]

S3 P2.1 J3[3–4]

Green LED (D4) P2.2 J3[5–6]

Green LED (D2) P2.3 J3[7–8]

Red LED PWR none

Table 2. J9 USB Connector Pin Descriptions

Pin # Description

1 VBUS

2D–

3D+

4 GND (Ground)

C8051F326/7

6 Rev. 0.3

4.4. Expansion I/O Connector (J1)

The 22-pin Expansion I/O connector J1 provides access to all signal pins of the C8051F326 device. Pins for +3 V,

and digital ground are also available. A through-hole prototyping area is also provided. Each connection point is

labeled indicating the signal available at the connection point. See Table 3 for a list of pin descriptions for J1.

4.5. USB Self-powered Configuration

The C8051F326 target board can be powered from three different sources. The sources are the ac/dc adapter

(P1), USB connection (J9), and the USB Debug adapter (J4). Only one power source should be enabled at any

time. See Section 4.8. for infomation on using the USB Debug Adapter as a power source for the board.

The C8051F326 target board can be configured as a self-powered USB device to take power from the USB cable

at J9 instead of the ac/dc adapter connected at P1. To configure the target boards as a self-powered USB device,

remove the shorting block from J2 and install on J11. (A shorting block should only be installed on J2 or J11, never

both at the same time.) Install shorting blocks in the following manner:

J2(ON) & J11(OFF) Target Board is powered from the ac/dc Adapter (P1).

J2(OFF) & J11(ON) Target Board is powered from the USB connection (J9)

Notes:

• When the C8051F326 target board is self-powered from the USB connection (J9), the EC2 Serial Adapter is

not powered from the target board. The EC2 Serial Adapter must be powered directly by connecting the ac/

dc adapter to the Serial Adapter’s dc power jack.

• The RS232 Serial Interface (J5) cannot be used when powering the target board from the USB connection (J9).

Table 3. J1 Pin Descriptions

Pin # Description Pin # Description

1 P0.0 12 P2.3

2 P0.1 13 P2.4

3 P0.2 14 P2.5

4 P0.3 15 P3.0

5P0.4 16C2CK/RST

6P0.5 17VREGIN

7P0.6 18VIO

8 P0.7 19 VBUS

9P2.0 20VDD

10 P2.1 21 +3VD

11 P2.2 22 GND

C8051F326/7

Rev. 0.3 7

4.6. Target Board DEBUG Interface (J4)

The

DEBUG

connector (J4) provides access to the

DEBUG

(C2) pins of the C8051F326. 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 (J5)

A RS232 transceiver circuit and DB-9 (J5) connector are provided on the target board to facilitate serial connec-

tions to UART0 of the C8051F326. 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.

J3[9–10]- Install shorting block to connect UART0 TX (P0.4) to the transceiver.

J3[11–12]- Install shorting block to connect UART0 RX (P0.5) to the transceiver.

J3[13–14]- Install shorting block to connect UART0 RTS (P2.4) to the transceiver.

J3[15–16]- Install shorting block to connect UART0 CTS (P2.5) to the transceiver.

4.8. 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. 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

C8051F326/7

8 Rev. 0.3

5. Schematics

Figure 4. C8051F326 Target Board Schematic (Page 1)

C8051F326/7

Rev. 0.3 9

Figure 5. C8051F326 Target Board Schematic (Page 2)

C8051F326/7

10 Rev. 0.3

DOCUMENT CHANGE LIST

Revision 0.1 to Revision 0.2

Removed EC2 Serial Adapter from Kit Contents.

Removed Section 2. Hardware Setup using an EC2 Serial Adapter. See RS232 Serial Adapter (EC2)

User's Guide.

Removed Section 8. EC2 Serial Adapter. See RS232 Serial Adapter (EC2) User's Guide.

Removed Section 9. USB Debug Adapter. See USB Debug Adapter User's Guide.

Revision 0.2 to Revision 0.3

Updated "Software Setup‚" on page 2.

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