Silicon Laboratories C8051F53 Series User manual

C8051F53x/52x

C8051F530A DEVELOPMENT KIT USER’SGUIDE

1. Relevant Devices

The C8051F530 Development Kit is intended as a development platform for microcontrollers in the C8051F53x/

52x MCU family. Code developed on the C8051F530 can be easily ported to the other members of this MCU

family.

2. Kit Contents

The C8051F530 Development Kit contains the following items:

C8051F530A Target Board

C8051Fxxx Development Kit Quick-Start Guide

AC to DC Power Adapter

USB Debug Adapter (USB to Debug Interface)

USB Cable

The development kit target board contains two C8051F530 microcontrollers that can communicate through an LIN

network. One of the C8051F530 (U2) can also be connected to a CP2102 USB to UART bridge and directly

connected to two analog signals and a Voltage Reference Signal Input.

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 one of the DEBUG connectors on the target board (HDR1 or HDR2)

with the 10-pin ribbon cable. The recommended connection is to the HDR2 (connected to U2) as this

microcontroller can be connected to the CP2102 USB to UART bridge.

2. Verify that shorting blocks are installed on J13 and J14 to supply power to the target devices.

3. Connect one end of the USB cable to the USB connector on the USB Debug Adapter.

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 P5 on the target board.

Figure 1. Hardware Setup using a USB Debug Adapter

P1.4_A

P1.4_B

SILICON

LABORATORIES

C8051F530A TB

PWR

P1.7_B

P1.6_B

P0.0_B

DEBUG_B

HDR1

Reset_B

DEBUG_A

HDR2Reset_A

HDR3

“B” Side

“A” Side

J13

J14

HDR4

USB

Cable

USB Debug Adapter

AC/DC

Adapter

Target Board

Silicon Laboratories

USB DEBUG ADAPTER

Run

StopPower

C8051F53x/52x

2 Rev. 0.4

Notes:

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

2. Remove power from the target board and the USB Debug Adapter before connecting or disconnecting the

ribbon cable from the target board. Connecting ordisconnecting 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 C8051F530 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.

C8051F53x/52x

Rev. 0.4 3

In the Part Selection step of the wizard, select from the list of installed parts only the parts to be used during

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

selection menus. Choose the C8051F53x/52x family by checking the C8051F53x/52x 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, perform the following steps:

1. Click the Software Examples tile from the Simplicity Studio home screen.

2. In the Kit drop-down, select C8051F530A Development Kit; in the Part drop-down, select C8051F530,

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

3. Select Example, and click Next.

4. Under C8051F530A Development Kit, select F52x-53x 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.

C8051F53x/52x

4 Rev. 0.4

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 (P4) 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 necessary, 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 Laboratories 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 Laboratories MCU. The program is configurable to provide the

output in C or assembly language. For more information, refer to the Configuration Wizard documentation.

Documentation and software is available on the kit CD and from the downloads web page: www.silabs.com/

mcudownloads.

C8051F53x/52x

Rev. 0.4 5

5. Target Board

The C8051F52xA-53xA Development Kit includes a target board with two C8051F530A devices preinstalled 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.

Table 1. Target Board Part Summary

Part Description

P5 Power connector (Accepts input from 7 to 15 VDC unregulated power adapter.)

PWR Red Power-on LED (D3)

TB1 LIN connector

U5 5 V Voltage Regulator

A Side

J2 28-pin Expansion I/O connector for U2

HDR2 Debug connector for Debug Adapter Interface

P1.3_A Green LED (D2)

Reset_A Reset button

P1.4_A Push button

R32 Potentiometer for P1.2_A

J6, J8 Connects R32 (potentiometer) to U2 and +5 V

J13 Connects power to U2

J11, J12 Connects external crystal to U2 pins P0.7_A and P1.0_A

J3 Connects analog channel 1 to U2 P1.6_A

J4 Connects analog channel 2 to U2 P1.7_A

J5 Connects VREFIN to U2 P0.0_A

TB2 Analog input connector

HDR4 Connector block for serial port connection, Green LED, and push-button

U3 Silicon Laboratories CP2102 USB-to-UART Bridge

P1 USB connector to serial interface (CP2102)

USB ACTIVE Red USB Active LED (D4) (CP2102)

T2 LIN transceiver

U2 C8051F530A “A” Side

C8051F53x/52x

6 Rev. 0.4

5.1. Target Board Shorting Blocks: Factory Defaults

The C8051F530A target board comes from the factory with preinstalled shorting blocks on many headers. Figure 4

shows the positions of the factory default shorting blocks.

Figure 4. C8051F530A Target Board

B Side

J1 26-pin Expansion I/O connector for U1

HDR1 Debug connector for Debug Adapter Interface

P1.3_B Green LED (D1)

Reset_B Reset button

P1.4_B Push button

J14 Connects power to U1

J9, J10 Connects external crystal to U1 pins P0.7_B and P1.0_B

HDR3 Green LED and push-button connector block

T1 LIN transceiver

U1 C8051F530A “B” Side

Table 1. Target Board Part Summary

Part Description

P1.4_A

P1.4_B

SILICON LABORATORIES

C8051F530A TB

P1.7_A

P1.6_A

P0.0_A

+12V LIN GND

GNDCH2 CH1 VRefin

DEBUG_B

HDR1 Reset_B

DEBUG_A

HDR2

Reset_A

HDR3

“B” Side

“A” Side

J13

J14

HDR4

J12

J11

J10

PWR

USB ACTIVE

P1.3_A

P1.3_B

R32

TB1

TB2

Pin 1

C8051F53x/52x

Rev. 0.4 7

5.2. System Clock Sources

The C8051F530A device installed on the target board features a calibrated programmable internal oscillator that is

enabled as the system clock source on reset. After reset, the internal oscillator operates at a frequency of

191.4 kHz (±0.5%) 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 C8051F530A device

at a frequency not available with the internal oscillator, an external crystal may be used. Refer to the C8051F52x/

52xA/53x/53xA data sheet for more information on configuring the system clock source.

The target board is designed to facilitate the installation of external crystals. Install the crystals at the pads marked

Y1 or Y2. Install a 10 Mresistor at R17 or R22, and install capacitors at C29 and C30 or C34 and C35 using

values appropriate for the crystals selected. Headers J9, J10, J11, and J12 connect the external crystal pins to the

general purpose I/O headers (J1 and J2). If the external crystal is in use, these headers should not be populated.

Refer to the C8051F52x/52xA/53x/53xA data sheet for more information on the use of external oscillators.

5.3. Switches and LEDs

Four switches are provided on the target board.

Switch RESET_A is connected to the RESET pin of the C8051F530A A-Side (U2).

Switch RESET_B is connected to the RESET pin of the C8051F530A B-Side (U1).

Pressing RESET_A or RESET_B puts the attached device into its hardware-reset state.

Switches P1.4_A and P1.4_B are connected to the C8051F530A parts (U1 and U2) general purpose I/O (GPIO)

pins through headers. Pressing P1.4_A or P1.4_B generates a logic low signal on the port pin of the respective

microcontroller.

Remove the shorting block from the header to disconnect P1.4_A or P1.4_B from the port pins. The port pin

signals are also routed to pins on the J1 and J2 I/O connectors. See Table 2 for the port pins and headers

corresponding to each switch.

Four 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 D1 and D2 are connected to the C8051F530A'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 and J2 I/O connectors. The red LED labeled USB ACTIVE is used to

indicate that the CP2102 USB-to-UART bridge is properly connected to a PC and is ready for communication. See

Table 2 for the port pins and headers corresponding to each LED.

A potentiometer (R32) is provided on the target board. Header J8 connects the potentiometer to +5 V, and header

J6 connects the potentiometer to the P1.2_A pin of the U2 A-Side C8051F530A microcontroller.

Table 2. Target Board I/O Descriptions

Description I/O Header

Reset_A U2-Reset none

Reset_B U1-Reset none

P1.4_A U2-P1.4 HDR4[3–4]

P1.4_B U1-P1.4 HDR3[3–4]

Green LED D2 U2-P1.3 HDR4[1–2]

Green LED D1 U1-P1.3 HDR3[1–2]

Red LED D3 PWR none

Red LED D4 USB ACTIVE none

Potentiometer R32 U2-P1.2 J6, J8

C8051F53x/52x

8 Rev. 0.4

5.4. Expansion I/O Connectors (J1, J2)

The two Expansion I/O connectors J1 (26 pins) and J2 (28 pins) provide access to all signal pins of the

C8051F530A devices. Pins for VDD, GND, 5 V, Reset, Vbat, LIN, 3.3 V, and VREFIN are also available. A small

through-hole prototyping area is also provided.

All I/O signals routed to connectors J1 and J2 are also routed to through-hole connection points between J1 and J2

and the prototyping area (see Figure 4). Each connection point is labeled indicating the signal available at the

connection point. Table 3 lists the pin descriptions for J1 and J2.

5.5. Target Board DEBUG Interface (HDR1, HDR2)

The

DEBUG

connectors (HDR1 and HDR2) provide access to the

DEBUG

(C2) pins of the C8051F530A parts.

They are used to connect the USB Debug Adapter to the target board for in-circuit debugging and Flash

programming. Table 4 shows the

DEBUG

pin definitions.

Table 3. Pin Descriptions for J1 and J2

J1 J2

Pin # Description Pin # Description Pin # Description Pin # Description

1 P0.0_B 14 P1.5_B 1 P0.0_A 15 P1.6_A

2 P0.1_B 15 P1.6_B 2 P0.1_A 16 P1.7_A

3 P0.2_B 16 P1.7_B 3 P0.2_A 17 +5V

4 P0.3_B 17 +5V 4 P0.3_A 18 RST/C2CLK_A

5 P0.4_B 18 RST/C2CLK_B 5 P0.4_A 19 VBAT

6 P0.5_B 19 VBAT 6 P0.5_A 20 LIN

7 P0.6_B 20 LIN 7 P0.6_A 21 VREFIN

8 P0.7_B 21 NC 8 P0.7_A 22 VREGOUT_A

9 P1.0_B 22 VREGOUT_B 9 P1.0_A 23 +3.3V

10 P1.1_B 23 NC 10 P1.1_A 24 NC

11 P1.2_B 24 NC 11 P1.2_A 25 NC

12 P1.3_B 25 GND 12 P1.3_A 26 NC

13 P1.4_B 26 GND 13 P1.4_A 27 GND

14 P1.5_A 28 GND

Table 4. DEBUG Connector Pin Descriptions

Pin # Description

1 +3VD(+3.3VDC)

2, 3, 9 GND (Ground)

4C2D

5RST

(Reset)

6P0.6

7C2CK

8 Not Connected

10 USB Power

C8051F53x/52x

Rev. 0.4 9

5.6. USB to Serial Connector (P1, HDR4)

A USB-to-Serial bridge interface is provided. A B-type USB connector (P1), a CP2102, and related circuits are

provided to facilitate the serial connection between a PC and the U2 A-Side C8051F530A microcontroller on the

target board. The RX, TX, CTS, and RTS signals of the UART side of the Bridge (CP2102) may be connected to

the microcontroller by installing shorting blocks on HDR4 as shown in Table 5.

The BUS-Powered CP2102 uses the 5 V provided by the USB interface.

5.7. Analog I/O (TB2, J3, J4, J5)

The Analog connector block (TB2) and headers J3, J4, and J5 provide Analog inputs to the C8051F530A (U2) as

shown in Table 6. Headers J3, J4, and J5 connect the inputs from the Analog connector to the microcontroller pins.

5.8. Power Supply Options (P5, TB1, J13, J14)

The target board provides two options of power supply. The first option is to use the provided 9 V power supply

attached to the P5 connector. The second option is to use an external 12 V (7.5 V minimum) connected to the TB1

terminal block (pins 1 and 3).

Headers J13 and J14 connect the +5 V power supply to the VREGIN pins on U1 and U2. These headers can be

populated to supply power directly or depopulated to measure the operating current drawn by the corresponding

C8051F530A device.

Table 5. UART Connections

HDR3

Connection Signals

5–6 P0.4_A to TX_A

7–8 P0.5_A to RX_A

9–10 P1.1_A to RTS_A

11–12 P1.2_A to CTS_A

Table 6. Analog I/O Connections

TB2

Signal Connection I/O Shorting Block

Vrefin External Reference Input or Internal Reference Output P0.0_A J5

CH1 Analog Input 1 P1.6_A_MC J3

CH2 Analog Input 1 P1.7_A_MC J4

GND Ground GND —

C8051F53x/52x

10 Rev. 0.4

5.9. LIN Connectivity (TB1)

The C8051F530A Target Board has two C8051F530A devices (U1 and U2) and two LIN transceivers (T1 and T2)

to provide LIN connectivity on the target board. These devices can also be interfaced to another LIN bus using the

TB1 terminal block.

Table 7. LIN Connections

TB1

Signal Connection

+12V Supplies 12 V (7.5 V minimum) to the target board. This can be connected to the power supply of

another LIN bus or any external supply.

LIN Connects the 12 V LIN bus signal to the T1 and T2 LIN transceivers.

GND Ground

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