ST STM8L1526-EVAL Bedienungsanleitung

September 2009 Doc ID 15437 Rev 1 1/46

UM0684

User manual

STM8L1526-EVAL evaluation board

Introduction

The STM8L1526-EVAL evaluation board is a complete demonstration and development

platform for STMicroelectronic's STM8 core-based STM8L152C6 microcontroller which

supports I2C, SPI, USART, 12-bit ADC, 12-bit DAC, LCD driver, 2 KB internal SRAM, 32 KB

EEPROM and SWIM debugging.

The full range of hardware features on the board helps you evaluate all peripherals (motor

control, USART, audio DAC, LCD, IR LED, IrDA, SPI Flash, MicroSD Card, temperature

sensor and EEPROM… etc.) and develop your own applications. Extension headers

facilitate easy connection of a daughterboard or wrapping board for specific applications.

An ST-LINK is integrated on the board as the embedded in-circuit debugger and

programmer for the STM8 MCU.

Figure 1. STM8L1526-EVAL evaluation board

www.st.com

Contents STM8L1526-EVAL

2/46 Doc ID 15437 Rev 1

Contents

1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3 Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.4 LCD glass module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.5 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.6 EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.7 RS-232 and IrDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.8 Motor control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.9 MicroSD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.10 Analog input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.11 Serial Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.12 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.13 Development and debug support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.14 Display and input devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.15 IDD measurement and comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.16 Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.17 IR LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.1 RS-232 connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2 Power connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3 TFT LCD connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4 Daughterboard extension connector CN4 and CN10 . . . . . . . . . . . . . . . . 22

3.5 LCD glass connector CN5 and CN6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.6 Motor control connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

STM8L1526-EVAL Contents

Doc ID 15437 Rev 1 3/46

3.7 STice connector CN8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.8 ST-LINK programming connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.9 USB type B connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.10 SWIM connector CN12 and CN16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.11 Audio jack CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.12 MicroSD connector CN14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.13 BNC connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Appendix A STM8L1526-EVAL I/O assignment . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Features STM8L1526-EVAL

4/46 Doc ID 15437 Rev 1

1 Features

1.1 Hardware

●Three 5 V power supply options: power jack, ST-LINK USB connector or daughterboard

●Audio speaker and microphone connected to the DAC and ADC of the STM8L152C6

●1 GByte SPI interface MicroSD Card

●128 Mbit SPI serial Flash

●I2C compatible serial interface 64 KBit EEPROM and SMBusTemperature sensor

●RS-232 communication

●IrDA transceiver

●Inductor motor control connector

●SWIM debug support, ST-LINK embedded

●122x32 dot matrix LCD connected to the SPI interface of the STM8L152C6

●Joystick with 4-direction control and selector

●Reset and User button

●4 color LEDs and one bicolor LED

●MCU consumption measurement circuit

●LCD glass 28 x 4 segments (7 digits alpha numeric) connected to the LCD driver inside

the STM8L152C6

●Extension connector for daughterboard or wrapping board

●MCU voltage choice 3.3 V or adjustable from 1.65 V to 3.6 V

●STice connector footprint

●Board RoHS compliant (lead free)

1.2 Demonstration software

Demonstrationsoftware is preloaded in the board’s Flash memory for easy demonstration of

device peripherals in stand-alone mode. For more information and to download the latest

version available, please refer to STM8L1526-EVAL demonstration firmware available on

web: www.st.com/mcu.

1.3 Order code

To order the STM8L152C6 evaluation board, use the order code STM8L1526-EVAL.

STM8L1526-EVAL Hardware layout and configuration

Doc ID 15437 Rev 1 5/46

2 Hardware layout and configuration

The STM8L1526-EVAL evaluation board is designed around the STM8L1526C6T6 (48-pin

LQFP package). The hardware block diagram Figure 2 illustrates the connection between

the STM8L152C6 and the peripherals (LCD glass, dot matrix LCD, serial Flash, EEPROM,

temperature sensor, USART, IrDA, audio, MicroSD Card, Motor control and embedded ST-

LINK). Figure 3 and Figure 4 help you locate these features on the actual evaluation board.

Figure 2. Hardware block diagram

LCD Glass module

STM8L1526

RS232

transceiver

IrDA

transceiver

3.3V regulator

Dot Matrix

LCD

MicroSD

card

Audio DAC

BNC connector

MC control

connector

LEDs

Potentiometer

USART

DB9 connector

DAC

GPIO

I2C

Extension

connector for

GPIOs

MCU

consumption

measurement

USART

Temperature

Sensor

SPI

SWIM

EEPROM

Joystick

1.65V to 3.6V

adjustable

regulator

LCD driver

Voltage

translator Serial Flash

ADC

Embedded

ST-LINK

USB TypeB

connector

Micro-Phone

Amplifier

User Key

ADC

GPIO

STM8L1526C6T6

Hardware layout and configuration STM8L1526-EVAL

6/46 Doc ID 15437 Rev 1

Figure 3. STM8L1526-EVAL layout

U16

LD6 IR LED

U2 IrDA

CN1

CN2

RV1

RV2 Potentiometer

CN4, CN10 Extension header CN7 Motor control

CN13

CN8 STice

LCD

CN15 BNC

CN11 ST-LINK

CN12 & CN13

CN14

B1 reset key B2 user keyU17 joystick

VDD_Adjustment

USB connector

SWIM connecto

connector

MicroSD Card

Audio Jack

glass module

STM8L1526

USART

Dot matrix LCD

Power Jack

STM8L1526-EVAL Hardware layout and configuration

Doc ID 15437 Rev 1 7/46

Figure 4. STM8L1526-EVAL jumpers and solder bridges

Hardware layout and configuration STM8L1526-EVAL

8/46 Doc ID 15437 Rev 1

2.1 Power supply

The STM8L1526-EVAL is designed to be powered by a 5 V DC power supply and to be

protected by PolyZen from a wrong power plug-in event. It is possible to configure the

evaluation board to use any of following three power supply sources.

1. 5 V DC power adapter connected to CN2, the power jack on the board (power supply

unit (PSU) on silk screen).

●5 V DC power with 500 mA limitation from CN11, the USB type B connector for ST-

LINK (ST-link on silkscreen (STL)).

●5 V DC power from CN10, the extension connector for daughterboard (daughterboard

power source (DTB) on silkscreen).

The power supply is configured by setting the related jumpers JP1, JP2 and JP11 as

described in Table 1.

Table 1. Power related jumpers: JP1, JP2, JP11

Jumper Description Setting

JP2

JP2 selects one of the three possible power supply resources.

For power supply jack(CN2) to the STM8L1526-EVAL only, JP2 is set as shown

to the right.

For power supply from the daughterboard connectors(CN10) to STM8L1526-

EVAL only, JP2 is set as shown to the right.

For power supply from ST-LINK connector (CN11) to STM8L1526-EVAL only,

JP2 is set as shown to the right (default setting).

For power supply from power supply jack (CN2) to both STM8L1526-EVAL and

daughterboard connected on CN4 and CN10, JP2 is set as shown to the right

(daughterboard must not have its own power supply connected).

JP1

VDD is connected to fixed +3.3 V DC power when JP1 is set as shown to the

right (default setting).

VDD is connected to adjustable DC power from 1.65 V to 3.6 V when JP1 is set

as shown to the right.

JP11

VDD power is directly connected to MCU VDD when JP11 is set as shown to

the right.

Note: For manual IDD measurement the jumper on JP11 must be removed and

replaced by an ammeter connected between JP11 pin 2 and pin 3.

Connect VDD power to MCU with current-sampling resistor, 2 ohm or 2 Kohm,

in-series for IDD current measurement when JP11 is set as shown to the right

(default setting).

TLink

321

STM8L1526-EVAL Hardware layout and configuration

Doc ID 15437 Rev 1 9/46

To enable MCU power consumption measurement, JP11, JP3 and LCD glass module

should be re-configured as described in Table 1 and Table 2.

The LED LD8 is lit when the STM8L1526-EVAL evaluation board is powered by the 5 V

correctly, the LED LD9 is lit if the MCU is powered by a low voltage (VDD < 1.8 V).

Note: The AC220V to DC5V power adapter PSU-5V2A (recommended, can be ordered from ST, it

is not provided with board by default) or equivalent (polarity compatible with CN2) can be

used to power the STM8L1525-EVAL board via the power jack CN2 on the board.

To order the recommended power supply, use the order code PSU-5V2A.

2.2 Clock source

Two clock sources are available on the STM8L1526-EVAL for the STM8L152C6 and

embedded RTC.

●X2, 32 kHz crystal for embedded RTC

●X1, 16 MHz crystal with socket for the STM8L152C6 microcontroller, it can be removed

from the socket when the internal RC clock is used.

Note: I/O ports PA2 and PA3 can be used as GPIO on extension connector by closing solder

bridges SB1 and SB2 when crystal X1 is removed from it's socket.

Table 2. MCU power consumption measurement related jumpers

Jumper Description

JP3

The microphone output is connected to ADC of the STM8L152C6 when JP3 is closed.

Default setting: Fitted

For MCU power consumption measurement, JP3 must be kept open to avoid current

injection.

For motor control application, JP3 must be kept open to avoid conflict between the

speaker and motor control connector, CN7.

LCDglass

module The LCD glass module must be mounted on the "IO" position for MCU power

consumption measurement. Refer to Section 2.4: LCD glass module for details.

Table 3. 32 kHz crystal X2 related solder bridges

Solder bridge Description

SB3

PC5 is connected to 32 kHz crystal when SB3 is set as pad1 connected to pad2

(default setting).

PC5 is connected to STice connector CN8 and extension connector CN4 when SB3

is set as pad2 connected to pad3.

SB4

PC6 is connected to 32 kHz crystal when SB4 is set as pad2 connected to pad3

(default setting).

PC6 is connected to STice connector CN8 and extension connector CN4 when SB4

is set as pad1 connected to pad2.

Hardware layout and configuration STM8L1526-EVAL

10/46 Doc ID 15437 Rev 1

2.3 Reset source

The reset signal of the STM8L1526-EVAL is low active and the reset sources include:

●Reset button B1

●Debugging tools from SWIM connector CN12 and CN16

●Daughterboard from CN10

●Embedded ST-LINK

●RS-232 connector CN1 for ISP

2.4 LCD glass module

An LCD glass module (MB821) with 8-digit liquid crystal display is mounted on the

STM8L1526-EVAL evaluation board. It can be connected to the LCD driver of the

STM8L152C6 MCU or can work as a set of jumpers by mounting it in two possible positions,

position IO or position LCD.

●Position IO. All peripherals (USART, IrDA, MicroSD Card, dot matrix LCD, serial Flash,

LEDs, joystick, bicolor LED, potentiometer, MCU consumption measurement, motor

control and microphone) shared with LCD glass are connected to the STM8L152C6

and the LCD glass is disconnected when LCD glass module is mounted on position IO

as shown below (default setting). See Figure 5.

●Position LCD. LCD glass is connected to the LCD driver of the STM8L152C6 and all

peripherals shared with the LCD glass are disconnected when the LCD glass module is

mounted on position LCD as shown below. In this position, as well as the LCD, there

are other resources available on the board:

– I2C EEPROM or Key button depending on JP7 jumper position

– Audio speaker amplifier or BNC depending on JP10 jumper position.

– IR LED depending on JP6 jumper position.

See Figure 6.

Table 4. Reset related jumpers

Jumper Description Setting

JP15 The board Reset is managed by pin 1 of connector CN1 (RS-232 DCD signal)

when JP15 is closed. This configuration is used for boot loader application only.

Default Setting: Not fitted

JP13 PA1 is connected to the Reset source listed above when JP13 is set as shown to

the right: (Default setting).

PA1 is connected to ground when JP13 is set as shown to the right. So, the MCU

is kept on Reset when you connect STice to CN8 for debugging.

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