ST X-NUCLEO-EEPRMA1 Manual de usuario

Getting started with the X-NUCLEO-EEPRMA1 standard I²C and SPI EEPROM

memory expansion board based on M24xx and M95xx series for STM32 Nucleo

Introduction

The X-NUCLEO-EEPRMA1 expansion board is designed for M24xx I²C and M95xx SPI EEPROM for data reading and writing.

The expansion board acts as an external storage device that can be used to store data such as manufacturing traceability,

calibration, user setting, error flags, data log and monitoring data to make applications more flexible and accurate.

The X-NUCLEO-EEPRMA1 expansion board is compatible with the Arduino UNO R3 connector pin assignment and can be

easily plugged to any STM32 Nucleo development board. You can mount the ST morpho connectors if required.

Figure 1. X-NUCLEO-EEPRMA1 expansion board

UM2480

User manual

UM2480 - Rev 1 - October 2018

For further information contact your local STMicroelectronics sales office.

www.st.com

1Acronyms and abbreviations

Table 1. List of acronyms

Acronym Description

EEPROM Electrically erasable programmable read only memory

MHz Mega Hertz

MCU Microcontroller unit

SPI Serial peripheral interface

I2C Inter-integrated circuit

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Acronyms and abbreviations

UM2480 - Rev 1 page 2/22

2Getting started

2.1 Overview

The X-NUCLEO-EEPRMA1 main features are:

•Easy portability across different MCU families

• Equipped with Arduino™ UNO R3 connector

• Compatible with STM32 Nucleo boards

• Free comprehensive development firmware library and sample implementation available when the X-

NUCLEO-EEPRMA1 expansion board is plugged on top of a NUCLEO-F401RE or NUCLEO-L053R8

development board

• Developer can choose and solder an EEPROM to be tested using the evaluation software provided

• RoHS and WEEE compliant

2.2 Typical applications

The X-NUCLEO-EEPRMA1 expansion board acts as an external storage device that can be used for storing data

such as manufacturing traceability, calibration data, user setting, error flags, data log and monitoring data to make

applications more flexible and accurate.

2.3 Hardware requirements

To use STM32 Nucleo development boards with the X-NUCLEO-EEPRMA1 expansion board, connect the boards

as shown below.

Figure 2. X-NUCLEO-EEPRMA1 expansion board connected to an STM32 Nucleo development board

The EEPROM communicates with the STM32 Nucleo development board host microcontroller through the SPI or

I²C signals available on the Arduino UNO R3 connector.

The X-NUCLEO-EEPRMA1 has been designed to allow using any STM32 Nucleo board, although complete

testing has been performed using the NUCLEO-F401RE and NUCLEO-L053R8 boards.

2.4 System requirements

To use the STM32 Nucleo boards with the X-NUCLEO-EEPRMA1 expansion board you need:

•a Windows PC/laptop (Windows 7 or above) to install the firmware package (X-CUBE-EEPRMA1)

• a type A to Mini-B USB cable to connect the STM32 Nucleo board to the PC

UM2480

Getting started

UM2480 - Rev 1 page 3/22

• an STM32 Nucleo development board (NUCLEO-F401RE or NUCLEO-L053R8)

• an X-NUCLEO-EEPRMA1 expansion board

2.5 Board setup

Step 1. Check the jumper on J1 and J2 connectors are connected.

These jumpers provide the required voltage to the devices.

Step 2. Ensure jumper on J11 is put between VCC and WPn.

Step 3. Ensure jumper on J10 is put between U7_Sn and CN5_3_U7_Sn.

Step 4. Connect the X-NUCLEO-EEPRMA1 to the STM32 Nucleo board as shown in Figure 2. X-NUCLEO-

EEPRMA1 expansion board connected to an STM32 Nucleo development board.

Step 5. Power the STM32 Nucleo development board using the Mini-B USB cable.

Step 6. Program the firmware in the development board.

Step 7. Reset the MCU board using the reset button on the STM32 Nucleo development board.

The evaluation kit is ready-to-use.

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Board setup

UM2480 - Rev 1 page 4/22

3Hardware description and configuration

3.1 Interconnection details

The X-NUCLEO-EEPRMA1 expansion board and the NUCLEO-L053R8 or NUCLEO-F401RE board connection

details are listed in the tables below.

Table 2. X-NUCLEO-EEPRMA1 and NUCLEO-L053R8 connection details (left connector)

Signal name

NC IOREF RESET 3V3 5V GND GND VIN A0 A1 A2 A3 A4 A5

Connector name

CN6 Power CN8 Analog

Pin number

1 2 3 4 5 6 7 8 1 2 3 4 5 6

NUCLEO-L053R8 MCU port

NRST PA0 PA1 PA4 PB0 PC1/PB9 PC0/PB8

NUCLEO-L053R8 MCU signals

3.3 V

REF RESET

3.3 V

input/

output

5 V

output GND GND POWER

INPUT ADC_IN0 ADC_IN1 ADC_IN4 ADC_IN8

ADC_IN11(PC1)

I2C1_SDA(PB9)

ADC_IN10(PC0)

I2C1_SCL(PB8)

X-NUCLEO-EEPRMA1 expansion board signals

NC 3V3 GND GND M95_WPn M24_VCC M95_Hn U8_Sn

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Hardware description and configuration

UM2480 - Rev 1 page 5/22

Table 3. X-NUCLEO-EEPRMA1 and NUCLEO-L053R8 connection details (right connector)

Signal name

D15 D14 AREF GND D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Connector name

CN5 Digital CN9 Digital

Pin number

10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

NUCLEO-L053R8 MCU port

PB8 PB9 PA5 PA6 PA7 PB6 PC7 PA9 PA8 PB10 PB4 PB5 PB3 PA10 PA2 PA3

NUCLEO-L053R8 MCU signals

I2C_SCL

I2C_SDA

AVDD

GND

SPI1_SCK

SPI1_MISO

TIM12_CH2 SPI1_MOSI

SPI1_CS

TIM12_CH2

TIM2_CH3

TIM12_CH1

TIM2_CH2

USART2_TX

USART2_RX

X-NUCLEO-EEPRMA1 shield signals

M24_I2C_SCL

M24_I2C_SDA

GND

M95_SCLK

M95_MISO

M95_MOSI

CN5_3_U7_Sn

U6_Sn

U5_Sn

Table 4. X-NUCLEO-EEPRMA1 and NUCLEO-F401RE connection details (left connector)

Signal name

NC IOREF RESET 3V3 5V GND GND VIN A0 A1 A2 A3 A4 A5

Connector name

CN6 Power CN8 Analog

Pin number

1 2 3 4 5 6 7 8 1 2 3 4 5 6

NUCLEO-F401RE MCU port

NRST PA0 PA1 PA4 PB0 PC1 PC0

NUCLEO-F401RE MCU signals

3.3 V

REF RESET

3.3 V

input/

output

5 V

output GND GND POWER

INPUT ADC1_0 ADC1_1 ADC1_4 ADC1_8

ADC1_11(PC1)

I2C1_SDA(PB9)

ADC1_10(PC0)

I2C1_SCL(PB8)

X-NUCLEO-EEPRMA1 expansion board signals

NC 3V3 GND GND M95_WPn M24_VCC M95_Hn U8_Sn

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Interconnection details

UM2480 - Rev 1 page 6/22

Table 5. X-NUCLEO-EEPRMA1 and NUCLEO-F401RE connection details (right connector)

Signal name

D15 D14 AREF GND D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Connector name

CN5 Digital CN9 Digital

Pin number

10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

NUCLEO-F401RE MCU port

PB8 PB9 PA5 PA6 PA7 PB6 PC7 PA9 PA8 PB10 PB4 PB5 PB3 PA10 PA2 PA3

NUCLEO-F401RE MCU signals

I2C1_SCL

I2C1_SDA

AVDD

GND

SPI1_SCK

SPI1_MISO

TIM1_CH1N SPI1_MOSI

TIM4_CH4 SPI1_CS

TIM3_CH2

TIM2_CH3

TIM3_CH1

TIM2_CH2

USART2_TX

USART2_RX

X-NUCLEO-EEPRMA1 shield signals

M24_I2C_SCL

M24_I2C_SDA

GND

M95_SCLK

M95_MISO

M95_MOSI

CN5_3_U7_Sn

U6_Sn

U5_Sn

3.2 Current measurement

J1 can be used to monitor the I²C device power consumption, whereas J2 can be used to monitor the SPI device

power consumption. Connect an ammeter probe between the connector pin 1 and pin 2 for measurements.

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Current measurement

UM2480 - Rev 1 page 7/22

3.3 X-NUCLEO-EEPRMA1 component placement details

Figure 3. X-NUCLEO-EEPRMA1 component placement details

Figure 4. X-NUCLEO-EEPRMA1 top view layout

UM2480

X-NUCLEO-EEPRMA1 component placement details

UM2480 - Rev 1 page 8/22

Figure 5. X-NUCLEO-EEPRMA1 bottom view layout

UM2480

X-NUCLEO-EEPRMA1 component placement details

UM2480 - Rev 1 page 9/22

4Component description

4.1 M24XX

Table 6. M24C02 details

Feature Description

Sales type M24C02-FMC6TG

Package UFDFPN8

Single supply voltage 1.7 to 5.5 V (full temperature range) and 1.6 to 1.7 V (limited temperature range)

Table 7. M24256 details

Feature Description

Sales type M24256-DFDW6TP

Package TSSOP8

Single supply voltage and high speed 1 MHz clock from 1.7 to 5.5 V

Table 8. M24M01 details

Feature Description

Sales type M24M01-DFMN6TP

Package SO8

Single supply voltage and high speed 1 MHz clock from 1.7 to 5.5 V

4.2 M95XX

Table 9. M95040 details

Feature Description

Sales type M95040-RMC6TG

Package UFDFPN8

Single supply voltage 1.7 to 5.5 V

Table 10. M95256 details

Feature Description

Sales type M95256-DFDW6TP

Package TSSOP8

Single supply voltage 1.7 to 5.5 V

UM2480

Component description

UM2480 - Rev 1 page 10/22

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