Silicon Laboratories C8051F55 Series User manual

C8051F55x/56x/57x

C8051F560 DEVELOPMENT KIT USER’S GUIDE

1. Relevant Devices

The C8051F560 Development Kit is intended as a development platform for the microcontrollers in the

C8051F55x/56x/57x MCU family.

The target board included in this kit is provided with a pre-soldered C8051F568 MCU (QFN40 package) and a

C8051F550 MCU (QFN24 package).

Code developed on the C8051F568 can be easily ported to the other members of this MCU family.

Refer to the C8051F55x/56x/57x data sheet for the differences between the members of this MCU family.

2. Kit Contents

The C8051F560 Development Kit contains the following items:

C8051F560 Target Board

C8051Fxxx Development Kit Quick-Start Guide

AC to DC Power Adapter

USB Debug Adapter

Two USB Cables

3. Hardware Setup

Refer to Figure 1 for a diagram of the hardware configuration.

1. Connect the USB Debug Adapter to the DEBUG A 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. Verify that shorting blocks are installed on the target board as shown in Figure 5 on page 7.

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 P4 on the target board.

Figure 1. Hardware Setup using a USB Debug Adapter

C8051F55x/56x/57x

2 Rev. 0.2

Notes:

Use the Reset icon in the IDE to reset the target when connected during a debug session.

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.

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 C8051F560 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

C8051F55x/56x/57x

Rev. 0.2 3

development. Choosing parts and families in this step affects the displayed or filtered parts in the later device

selection menus. Choose the C8051F55x/56x/57x family by checking the C8051F55x/56x/57x 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.

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 Software Examples tile from the Simplicity Studio home screen.

2. In the Kit drop-down, select C8051F560 Development Kit, in the Part drop-down, select C8051F560, and

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

3. Select Example and click Next.

4. Under C8051F560 Development Kit, select F55x-57x Blinky, click Next, and click 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.

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.

C8051F55x/56x/57x

4 Rev. 0.2

4.3. CP210x USB to UART VCP Driver Installation

The Target Board 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.

1. After opening Simplicity Studio for the first time, a dialog will prompt to install the CP210x drivers. Click

Yes. The drivers can also be installed at any time by going to HelpInstall DriversCP210x VCP USB

Drivers.

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

USB connector (P5) on the Target Board. 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.

4.4. Configuration Wizard 2

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

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

Figure 3. 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 Labs MCU. The program is configurable to provide the output

in C or assembly. For more information, please refer to the Configuration Wizard 2 help available under the Help

menu in Configuration Wizard 2.

For more information, please refer to the Configuration Wizard 2 documentation. The documentation and software

are available from the Downloads webpage (www.silabs.com/mcudownloads).

C8051F55x/56x/57x

Rev. 0.2 5

5. Target Board

The C8051F560 Development Kit includes a target board with a C8051F568 (Side A) and C8051F550 (Side B)

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 12 on page 15.

J7 Header to choose between +5V from Debug Adapter (P2) or +5V from on-board regulator (U6)

J21 Connect V_HIGH node from TB1 LIN header to +5V regulator input for board power

P4 Power connector (accepts input from 7 to 15 VDC unregulated power adapter)

P5 USB connector (connects to PC for serial communication)

TB1 Shared LIN Connector for Side A and B MCUs for external nodes

TB2 Shared CAN Connector for Side A and B MCUs for external nodes

J0-J3 Side A: Port 0 through Port 3 headers

J4 Side A: Connects +5V net or +3.3V net to VIO of the MCU

J9, J10 Side A: External crystal enable connectors

J14 Side A: CAN Transceiver (U3) power connector

J17 Side A: Connects MCU to three separate transceivers (UART(U5), CAN(U3), and LIN(T1))

J18 Side A: Connects VIO to VIO_A_SRC which powers the R27 potentiometer, the

RST_A pin pull-up, and P1.4_A Switch pull-up.

J19 Side A: Connects P1.3_A LED and P1.4_A Switch to MCU port pins

J20 Side A: Connects R27 potentiometer to port pin 1.2

J22 Side A: Connects decoupling capacitors C28 and C29 for MCU VREF (P0.0)

J23 Side A: Connects VIO_A power to External Memory Interface Latch (U8)

J24 Side A: Connects +5V net to VIO and VREGIN of the MCU

P1 Side A: 96-pin female connector

P2 Side A: DEBUG connector for Debug Adapter interface

TB3 Side A: Power supply terminal block

J5 Side B: Connects decoupling capacitors C42 and C43 for MCU VREF (P0.0)

J6 Side B: Connects +5V net to VIO and VREGIN of the MCU

J8 Side B: CAN Transceiver (U4) power connector

J11 Side B: Port 0 header

J12 Side B: Connects MCU to two separate transceivers (CAN (U4) and LIN (T2))

J13 Side B: Port 1 header

J15 Side B: Connects P1.3_B LED and P1.4_B Switch to MCU port pins

J16 Side B: Port 2 header

P3 Side B: DEBUG connector for Debug Adapter interface

C8051F55x/56x/57x

6 Rev. 0.2

Figure 4. C8051F560 Target Board with Pin Numbers

C8051F55x/56x/57x

Rev. 0.2 7

5.1. Target Board Shorting Blocks: Factory Defaults

The C8051F560 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. C8051F560 Target Board Shorting Blocks: Factory Defaults

C8051F55x/56x/57x

8 Rev. 0.2

5.2. Target Board Power Options and Current Measurement (J4, J6, J7, J24, P4, TB1)

The MCUs on the C8051F560 Target Board are powered from a +5 V net. The +5 V net is connected to the

headers J4 and J24 (Side A) and J6 (Side B). Shorting blocks can be put on each header to connect the 5V net to

the VREGIN and VIO pins on the two MCUs. With the shorting blocks removed, a source meter can be used

across the headers to measure the current consumption of the MCU.

The +5 V net on the target board has three possible sources:

1. 12V dc power using the ac to dc power adapter (P4)

2. 5V dc USB VBUS power from PC via the USB Debug Adapter (DEBUG_A)

3. 12V dc power from the LIN external header (TB1)

5.2.1. Using the AC to DC Power Adapter as the Target Board Power Source (P4, J7)

The default configuration of the target board uses the ac to dc power adapter as the source. The 12 V from the

adapter is regulated to +5 V using an LDO regulator (U6). The output of the regulator is connected to the +5 V net

of the target board through the J7 header. A shorting block should be installed on pins J7[2-3] for this purpose. The

+5V net powers the MCUs directly.

5.2.2. Using the USB Debug Adapter as the Target Board Power Source (J7)

The target board can use +5 V provided by the USB Debug Adapter. To enable this source, a shorting block should

be installed on pins J7[1-2]. With this shorting block, the output of the LDO regulator (U6) is disconnected from the

+5 V net of the target board, and the SER_PWR node is connected to +5 V.

Note: The USB Debug Adapter does not provide the necessary peak power for the CAN transceivers to operate.

One of the 12 V dc sources is recommended for CAN transceiver operation.

5.2.3. Using an External +12V LIN Source as the Target Board Power Source (J7, TB1)

The two 12V power sources (LIN and ac to dc power adapter) are ORed together using reverse-biased diodes (Z1

and Z2) and connected to the input of the LDO regulator (U6). The output of the regulator is connected to the +5 V

net of the target board through the J7 header. A shorting block should be installed on pins J7[2-3] for this purpose.

The +5V net powers the MCUs directly.

5.3. System Clock Sources (J9, J10)

5.3.1. Internal Oscillators

The C8051F568 and C8051F550 devices installed on the target board feature a factory-calibrated, programmable

high-frequency internal oscillator (24 MHz base frequency, ±0.5%), which is enabled as the system clock source on

reset. After reset, the internal oscillator operates at a frequency of 187.5 kHz by default but may be configured by

software to operate at other frequencies. The on-chip crystal is accurate for CAN and LIN master communications

and in many applications an external oscillator is not required. However, if you wish to operate the C8051F568

device (Side A) at a frequency not available with the internal oscillator, an external crystal may be used. Refer to

the C8051F55x/56x/57x 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 R2 and install capacitors at C6

and C7 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. R2, R3, C6, and

C7 are located on the back side of the board, near the Side A MCU. Populate C6 for capacitor mode, and populate

R3 and C6 for RC mode. Refer to the C8051F55x/56x/57x data sheet for more information on the use of external

oscillators.

C8051F55x/56x/57x

Rev. 0.2 9

5.4. Switches and LEDs (J15, J19)

Two push-button switches are provided on the target board for each MCU. Switch RESET_A is connected to the

RST pin of the C8051F568. Switch RESET_B is connected to the RST pin of the C8051F550. Pressing RESET_A

puts the C8051F568 device into its hardware-reset state, and similarly for RESET_B and the C8051F550 MCU.

Switches P1.4_A and P1.4_B are connected to the MCU’s general purpose I/O (GPIO) pins through headers.

Pressing either one of these switches generates a logic low signal on the port pin. Remove the shorting block from

the header to disconnect these switches from the port pins. See Table 1 for the port pins and headers

corresponding to each switch.

Four LEDs are provided on the target board to serve as indicators. The red LED labeled PWR LED indicates

presence of power to the target board. The second red LED labeled COMM indicates if the CP2102 USB-to-UART

bridge is recognized by the PC. The green LED on Side A is labeled with a port pin name and is connected to a

C8051F568 GPIO pin through a header. Remove the shorting block from the header to disconnect the LED from

the port pin. Similarly, a second green LED on Side B is connected to the C8051F550 through another header. See

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

5.5. Target Board Debug Interfaces (P2 and P3)

The

debug

connectors P2 (DEBUG_A) and P3 (DEBUG_B) provide access to the

debug

(C2) pins of the

C8051F568 and C8051F550. The

debug

connectors are used to connect the Serial Adapter or the USB Debug

Adapter to the target board for in-circuit debugging and Flash programming. Table 2 shows the

DEBUG

definitions.

Table 1. Target Board I/O Descriptions

Description I/O Header(s)

RESET_A Reset (Side A) none

RESET_B Reset (Side B) none

P1.4_A Switch P1.4 (Side A) J19[1–2]

P1.4_B Switch P1.4 (Side B) J15[1–2]

P1.3_A LED P1.3 (Side A) J19[3–4]

P1.3_B LED P1.3 (Side B) J15[3–4]

Red LED (PWR) Power none

Red LED (COMM) COMM Active none

Table 2. DEBUG Connector Pin Descriptions

Side A - C8051F568 Side B - C8051F550

Pin # Description Pin # Description

1 Not Connected 1 Not Connected

2, 3, 9 GND (Ground) 2, 3, 9 GND (Ground)

4 P4.0_C2D_A 4 P2.1_C2D_B

5RST_A (Reset) 5 RST_B (Reset)

6 P4.0_A 6 P2.1_B

7 RST/C2CK_A 7 RST/C2CK_B

8 Not Connected 8 Not Connected

10 USB Power (+5VDC from P2) 10 Not Connected

C8051F55x/56x/57x

10 Rev. 0.2

5.6. Serial Interface (P5, J17)

A USB-to-UART bridge circuit (U5) and USB connector (P5) are provided on the target board to facilitate serial

connections to UART0 of the C8051F568 (Side A). The Silicon Labs CP2102 USB-to-UART bridge provides data

connectivity between the C8051F568 and the PC via a USB port. The TX and RX signals of UART0 may be

connected to the CP2102 by installing shorting blocks on header J17. The shorting block positions for connecting

each of these signals to the CP2102 are listed in Table 3. To use this interface, the USB-to-UART device drivers

should be installed as described in Section C8051F560.

5.7. CAN Interface and Network (J8, J12, J14, J17, TB2)

Both MCUs on the target board are connected to CAN transceivers (U3, U4) through headers. The port pins

assigned to the CAN peripheral on each MCU are P0.6 (CAN_TX) and P0.7 (CAN_RX). The C8051F568 (Side A)

is connected to U3 through the J17 header and the C8051F550 (Side B) is connected to U4 through the J12

header. The two CAN transceivers are connected to each other and form a CAN network. Other external devices

can be connected to the CAN network through the TB2 interface. The shorting block positions for connecting the

MCUs to the CAN transceivers are listed in Table 4. The pin connections for the external CAN devices are listed in

Table 5. The CAN transceivers are powered by the +5VREG node and connected through J8 and J14 headers.

Table 3. Serial Interface Header (J17) Description

Header Pins UART0 Pin Description

J17[3–4] UART_TX (P0.4_A)

J17[1–2] UART_RX (P0.5_A)

Table 4. CAN Interface Headers (J17 and J12) Description

Header Pins CAN0 Pin Description

J17[5–6] CAN_TX (P0.6_A)

J17[7–8] CAN_RX (P0.7_A)

J12[7–8] CAN_TX (P0.6_B)

J12[5–6] CAN_RX (P0.7_B)

Table 5. TB2 External CAN Interface Header Description

Pin # Pin Description

1 GND

2 CAN_L

3 CAN_H

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