ST 32L100CDISCOVERY Manuel utilisateur

August 2013 DocID025091 Rev 1 1/30

UM1656

User manual

32L100CDISCOVERY discovery kit

for STM32L100 Value Line microcontrollers

Introduction

The 32L100CDISCOVERY helps you to discover the features of the STM32L100 Value Line

32-bit ARM®Cortex™-M3 microcontrollers and to develop your applications easily. It is

based on STM32L100RCT6 and includes an ST-LINK/V2 embedded debug tool, LEDs, and

push buttons.

Figure 1. 32L100CDISCOVERY

www.st.com

Contents UM1656

2/30 DocID025091 Rev 1

Contents

1 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Development toolchain supporting the 32L100CDISCOVERY . . . . . . . . . 6

2.4 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Hardware and layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1 STM32L100RCT6 microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

4.2 Embedded ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2.1 Using ST-LINK/V2 to program/debug the STM32L100 Value Line

on board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2.2 Using ST-LINK/V2 to program/debug an external STM32 application . . 15

4.3 Power supply and power selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.5 Push buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.6 JP2 (IDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.7 Oscillator clock (OSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.7.1 OSC clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.7.2 OSC 32 KHz clock supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.8 Solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.9 Extension connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5 Mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6 Electrical schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

DocID025091 Rev 1 3/30

UM1656 List of tables

List of tables

Table 1. ON/OFF conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 2. Jumper states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 3. Debug connector CN3 (SWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 4. Solder bridge settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 5. MCU pin description versus board function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 6. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

List of figures UM1656

4/30 DocID025091 Rev 1

List of figures

Figure 1. 32L100CDISCOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Hardware block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3. Top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 4. Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5. STM32L100RCT6 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 6. STM32L100RCT6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 7. Typical configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 8. 32L100CDISCOVERY connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 9. ST-LINK connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 10. 32L100CDISCOVERY mechanical drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 11. 32L100CDISCOVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 12. ST-LINK/V2 (SWD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 13. MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

DocID025091 Rev 1 5/30

UM1656 Conventions

1 Conventions

Table 1 provides the definition of some conventions used in the present document.

Table 1. ON/OFF conventions

Convention Definition

Jumper JP1 ON Jumper fitted

Jumper JP1 OFF Jumper not fitted

Solder bridge SBx ON SBx connections closed by solder

Solder bridge SBx OFF SBx connections left open

Quick start UM1656

6/30 DocID025091 Rev 1

2 Quick start

The 32L100CDISCOVERY is a low-cost and easy-to-use development kit to quickly

evaluate and start development with an STM32L100 Value Line series.

Before installing and using the product, please accept the Evaluation Product License

Agreement from www.st.com/stm32l1-discovery.

For more information on the 32L100CDISCOVERY and for demonstration software, visit

www.st.com/stm32l1-discovery.

2.1 Getting started

Follow the sequence below to configure the 32L100CDISCOVERY board and launch the

DISCOVER application:

1. Check jumper position on the board, JP2 on, CN2 on (Discovery selected).

2. Connect the 32L100CDISCOVERY board to a PC with a USB cable ‘type A to mini-B’

through USB connector CN1 to power the board. Red LED LD1 (PWR) and LD2 (COM)

light up and green LED LD3 blinks.

3. Press user button B1 (bottom left corner of the board).

4. Observe how the green LED LD3 blinking changes according to USER button B1

clicks.

5. Each click on USER button B1 is confirmed by the blue LED LD4.

6. To study or modify the DISCOVER project related to this demo, visit

www.st.com/stm32l1-discovery and follow the tutorial.

7. Discover the STM32L100 Value Line features, download and execute programs

proposed in the list of projects.

8. Develop your own application using available examples.

2.2 System requirements

•Windows PC (XP, Vista, 7)

•USB type A to Mini-B USB cable

2.3 Development toolchain supporting the 32L100CDISCOVERY

•Altium®, TASKING™ VX-toolset

•ARM®, Atollic TrueSTUDIO®

•IAR™, EWARM (IAR Embedded Workbench®)

•Keil™, MDK-ARM™

2.4 Order code

To order the STM32L100 Value Line Discovery kit, use the order code STM32L100C-

DISCO.

DocID025091 Rev 1 7/30

UM1656 Features

3 Features

The 32L100CDISCOVERY kit offers the following features:

•STM32L100RCT6 microcontroller featuring 256 KB Flash, 16 KB RAM in an LQFP64

package

•On-board ST-LINK/V2 with selection mode switch to use the kit as a standalone

ST-LINK/V2 (with SWD connector for programming and debugging)

•Board power supply: through USB bus or from an external 5 V supply voltage

•External application power supply: 3 V and 5 V

•Four LEDs:

– LD1 (red) for 3.3 V power on

– LD2 (red/green) for USB communication

– LD3 (green) for PC9 output

– LD4 (blue) for PC8 output

•Two push buttons (user and reset)

•Extension header for LQFP64 I/Os for quick connection to prototyping board and easy

probing.

•An additional board is provided with the kit which can be connected to the extension

connector for even easier prototyping and probing.

•A large number of free ready-to-run application firmware examples are available on

www.st.com/stm32l1-discovery to support quick evaluation and development.

Hardware and layout UM1656

8/30 DocID025091 Rev 1

4 Hardware and layout

The 32L100CDISCOVERY is designed around the STM32L100RCT6 microcontroller in a

64-pin LQFP package.

Figure 2 illustrates the connections between the STM32L100RCT6 and its peripherals (ST-

LINK/V2, push button, LEDs and connectors).

Figure 3 and Figure 4 help you to locate these features on the 32L100CDISCOVERY.

Figure 2. Hardware block diagram

MS32775V1

LED

LD4, PC8

USER

I/O

Embedded

ST-LINK/V2

Mini

USB

LED

LD3, PC9

RST

RESET

I/OI/O

Header

SWD

STM32L100RCT6

DocID025091 Rev 1 9/30

UM1656 Hardware and layout

Figure 3. Top layout

1. Pin 1 of CN2, CN3, P1 and P2 connectors are identified by a square.

MS32777V1

(red/green LED) LD2

COM

CN3

SWD connector

IDD measurement

ST-LINK/V2

B1 user button

B2 reset button

LD1 (red LED)

PWR

CN2

ST-LINK/DISCOVERY

selector

(green LED) LD3

LD4 (blue LED)

STM32L100RCT6

JP2

5V power supply

input/output

3V power supply

input/output

SB1 (VBAT)

SB3 (B1-USER)

SB4 (B2-RESET)

VLCD

GND

VDD

GND

MB1108 rev B

STM32L100C-DISCO

PH0

PH1

www.st.com/stm32l1-discovery

Hardware and layout UM1656

10/30 DocID025091 Rev 1

Figure 4. Bottom layout

SB6, SB8, SB10, SB12

MS30025V1

SB5, SB7, SB9, SB11

(RESERVED)

(DEFAULT)

SB20, SB21 (X3 crystal)

SB14, SB15 (RX, TX)

SB19 (NRST)

SB16, SB17 (X2 crystal)

SB13 (STM_RST)

SB22 (T_SWO)

SB18 (MCO)

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