estorm-l1 data manual

8/10/2019 EStorm-L1 Data Manual

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Embien Technologies eStorm-L1 Data Manual

eStorm-L1-DMR1.1

Page 1 of 28 Embien Tech. India Pvt. Ltd

Document Reference: ET/IPD/AI/DM/14/01-R1.1

Data Manual


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Revision History

Date Revision Authors Remarks

26/11/2013 1.0 KSD, SP Initial Document

23/01/2014 1.1 KSD, SP Updated Processor Pin mappings


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Table of Contents

1. INTRODUCTION ................................................................................................................................................. 5

1.1 SCOPE..................................................................................................................................................................... 51.2 REFERENCES............................................................................................................................................................. 5

2. SYSTEM FEATURES............................................................................................................................................. 6

2.1 ESTORM-L1BOARD FEATURES..................................................................................................................................... 6

2.2 ESTORM-L1BLOCK DIAGRAM...................................................................................................................................... 7

2.3 ESTORM-L1ORDERING INFO....................................................................................................................................... 8

3. ESTORM-L1 HARDWARE COMPONENTS ............................................................................................................ 9

3.1 ARMCORTEX-M0+MICROCONTROLLER...................................................................................................................... 93.2 GSMMODEM........................................................................................................................................................ 11

3.3 SECURE DIGITAL CARD.............................................................................................................................................. 11

3.4 SERIAL COMMUNICATION.......................................................................................................................................... 11

3.5 ANALOG INPUTS...................................................................................................................................................... 113.6 DIGITAL INPUTS....................................................................................................................................................... 12

3.7 DIGITAL OUTPUTS.................................................................................................................................................... 12

3.8 CHARACTER LCDDISPLAY......................................................................................................................................... 14

3.9 NAVIGATION KEYPAD................................................................................................................................................ 153.10 TOUCHPAD........................................................................................................................................................ 16

3.11 CONFIGURATION SWITCH..................................................................................................................................... 17

3.12 LEDS............................................................................................................................................................... 17

4. ESTORM-L1 CONNECTORS AND PIN OUTS ........................................................................................................18

4.1 CONNECTOR PLACEMENTS........................................................................................................................................ 18

4.2 CONNECTOR DETAILS................................................................................................................................................ 20

4.3 PIN OUTS.............................................................................................................................................................. 214.3.1 Terminal blocks (Top) pin out................................................................................................... 21

4.3.2 Switch connector pin out............................................................................................................ 23

4.3.3 Key/TSI connector pin out......................................................................................................... 23

4.3.4 LCD connector pin out................................................................................................................. 23

4.3.5 MicroSD connection details........................................................................................................ 25

4.3.6 LED Connector Pin out................................................................................................................. 25

4.3.7 Terminal blocks (Bottom) pin out........................................................................................... 26

4.3.8 SWD Connector Pin Out.............................................................................................................. 27

4.3.9 GSM Connection Information.................................................................................................... 27

4.3.10 EEPROM Connection Information............................................................................................ 27

5. ELECTRICAL AND ENVIRONMENTAL SPECIFICATION .........................................................................................28

6. LEGAL NOTICE ...................................................................................................................................................28

6.1 CUSTOMER SUPPORT............................................................................................................................................... 28

6.2 USAGE RESTRICTION................................................................................................................................................ 28


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Table of Figures

FIGURE 1:ESTORM-L1BLOCK DIAGRAM....................................................................................................................... 7

FIGURE 2:MKL25Z128VLH4BLOCK DIAGRAM....................................................................................................... 10FIGURE 3:ANALOG INPUT CIRCUIT............................................................................................................................... 11

FIGURE 4:DIGITAL INPUT CIRCUIT............................................................................................................................... 12

FIGURE 5:DIGITAL OUTPUT CIRCUIT............................................................................................................................ 13

FIGURE 6:LCDDISPLAY INTERFACE CIRCUIT.............................................................................................................. 14

FIGURE 7:NAVIGATION KEYPAD INTERFACE CIRCUIT................................................................................................. 15

FIGURE 8:CAPACITIVE TOUCHPAD INTERFACE CIRCUIT.............................................................................................. 16

FIGURE 9:CONNECTOR PLACEMENT............................................................................................................................. 19

Table of Tables

TABLE 1:ESTORM-L1BOARD FEATURES....................................................................................................................... 6

TABLE 2:CONNECTOR DETAILS..................................................................................................................................... 20

TABLE 3:TERMINAL BLOCKS (TOP)PIN OUTS............................................................................................................. 22

TABLE 4:SWITCH CONNECTOR PIN OUTS.................................................................................................................... 23

TABLE 5:KEY CONNECTOR PIN OUTS........................................................................................................................... 23

TABLE 6:LCDCONNECTOR PIN OUTS.......................................................................................................................... 24

TABLE 7:MICROSDCONNECTION DETAILS.................................................................................................................. 25

TABLE 8:LEDCONNECTOR PIN OUTS.......................................................................................................................... 25TABLE 9:TERMINAL BLOCKS (BOTTOM)PIN OUTS...................................................................................................... 26

TABLE 10:SWDCONNECTOR PIN OUTS...................................................................................................................... 27

TABLE 11:GSMCONNECTION DETAILS....................................................................................................................... 27

TABLE 12:EEPROMCONNECTION DETAILS................................................................................................................ 27


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1. Introduction

eStorm-L1 is the latest in the eStorm series of devices from Embien Technologies targeted forlow cost processing segment. Powered by the ARM Cortex-M0+ core, this platform is ideal for

application which needs low power and low cost.

Operating from single 5 V or 12V DC power supply, the board has MKL25Z128VLH4 processorfrom Freescale semiconductors with 128KB Integrated Flash and 64KB SRAM at its heart.Memory support includes 4KB EEPROM along with MicroSD card. Connectivity options include

USB Device, RS-232/ RS485 serial communication and GSM/GPRS. IO interface such as analoginput, digital input and digital output are available with input signal conditioning circuit andoutput relay driving circuit. Human machine interface such as character LCD, navigationkeypad is also available.

1.1 Scope

The primary scope of this document is to provide the developer/technical persons the

background about the device and procedures for using the same. All the details of thehardware, components used etc are provided to aid the developer use the system effectivelyas well as expand its functionalities with custom daughter boards.

This document does not describe about programming this device and using them. For thisinformation, kindly refer to the User Manual provided.

1.2

References

1. MKL25Z128VLH4 microcontroller reference manual document: KL25P80M48SF0RM fromFreescale.com.

2.

MKL25Z128VLH4 technical datasheet: KL25P80M48SF0 from Freescale.com.3. MKL25Z128VLH4 product brief: KL25PB from Freescale.com.


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2. System Features

This section describes various features of the eStorm-L1 platform in detail.

2.1 eStorm-L1 Board features

eStorm-L1 board supports the following features. Some of them are provided as standardwhile others are selectable by the customer.

Features Description Availability

Processor MKL25Z128VLH4 with ARM Cortex M0+ core Default

Processor Speed 48MHz Default

SRAM 16KB Default

Flash 128KB Default

EEPROM 4KB over I2C Optional

RTC Real Time Clock with CR2032 coin cell backup Optional

Input power 5V or 12V via Standard Power Jack or Terminal Block Default

Form Factor Enclosure Ready - 125mm X 62mm Default

UART Serial Interface 1 (RS232 or RS485) Optional

USB 1 USB Device Optional

MicroSD card Standard MicroSD Card Connector Optional

GSM Connectivity 2G Dual Band Modem Optional

Character LCD display 16x1 / 16x2 / 16x4 character LCD interface Optional

Keypad 5 Keys Navigation interface Optional

Touch input Capacitive touchpad interface Optional

Analog inputs 8 Analog inputs with variable gain signal conditioning Optional

Digital inputs 4 digital inputs if LCD display is not used2 digital inputs if LCD display is used Optional

Digital outputs

Relay mode:8 digital outputs if LCD display is not used4 digital outputs if LCD display is used

Digital switch mode:4 digital outputs if LCD display is not used2 digital outputs if LCD display is used

Optional

LED Interface for 3 LEDs Optional

Configuration switch Right angled switch for user application specific usage Optional

Table 1: eStorm-L1 Board features

Features marked in Greenare provided along with the basic configuration and those in Tancolor are selectable when ordering the board.


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2.2 eStorm-L1 Block Diagram

The block diagram of the eStorm-L1 board is depicted here with the standard and optional

features.

Figure 1: eStorm-L1 Block Diagram


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2.3 eStorm-L1 Ordering Info

eStorm-L1 can be ordered with only the features necessary for the target applications. Thefollowing table gives the detailed description of the ordering codes.

EStorm-L1_R [M/S]_UD_SD_GS_AI[n]_DI[n]_DO[DS/R]n

RM : RS-485 serial communication supportRS : RS-232 serial communication supportUD : USB Device supportSD : MicroSD card support

GS : GSM/GPRS connectivityAI[n] : Number of analog inputs requiredDI[n] : Number of digital inputs requiredDO[DS/R]n : Number of digital outputs required in digital switch or relay mode

For example, to order an eStorm-L1 board with the following features:

1.

RS-232 serial com port.2. MicroSD card storage.3. GSM/GPRS connectivity.

4. Six analog inputs.5.

Two digital inputs.6.

Two digital switch mode digital outputs.

Use the following ordering code

Ordering code : eStorm-L1_RS_SD_GS_AI[6]_DI[2]_DO[DS]2

Following tools and utilities are available for use with eStorm-L1 platform. For downloading and

ordering information, kindly contact us or visit our websitehttp://www.embien.com/.

S.No Tool Description

1. Operating System FreeRTOS Port available for free

2. Diagnostics Firmware Source code for testing each peripheral available for free

3.

PRISM Windows Application for Data Acquisition and configurationfor Industrial Monitoring System

4. RAPIDSEA Graphical Application development environment
http://www.embien.com/http://www.embien.com/http://www.embien.com/http://www.embien.com/


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3. eStorm-L1 Hardware Components

The eStorm-L1 platform is designed is designed for usage in industrial environments with

necessary features and reliability. This section describes some of the major components usedin the design.

3.1 ARM Cortex-M0+ Microcontroller

Freescale semiconductors MKL25Z128VLH4 is an ARM Cortex-M0+ based microcontroller thatis the heart of the eStorm-L1 platform.

The following are the features of ARM cortex-M0+ core:

Up to 48 MHz core frequency from 1.71 V to 3.6 V across temperature range of 40 Cto 105 C.

Support up to 32 interrupt request sources.

2-stage pipeline micro architecture for reduced power consumption and improvedarchitectural performance (cycles per instruction).

Binary compatible instruction set architecture with the CM0 core.

Thumb instruction set combines high code density with 32-bit performance. Serial wire debug (SWD) reduces the number of pins required for debugging. Micro trace buffer (MTB) provides lightweight program trace capabilities using system

RAM as the destination memory.

Single cycle 32 bits by 32 bits multiply

The peripheral complement of the MKL25Z128VLH4 includes the following features:

Up to 128 KB program flash memory

Up to 16 KB RAM Ethernet MAC

A USB full-/low-speed On-the-Go controller with on-chip transceiver and 5 V to 3.3 Vregulator

4-channel DMA controller, supporting up to 63 request sources

2 UARTs, 1 low power UART, two eight bit SPI interface, and two I2C interface

16-bit SAR ADC, 12-bit DAC

Six channel Timer/PWM, Two 2-channels Timer/PWM. Real time clock and Low-power hardware touch sensor interface and Up to 50 general purpose I/O pins.


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The following figure shows the simplified block diagram of the MKL25Z128VLH4microcontroller.

Figure 2: MKL25Z128VLH4Block Diagram


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3.2 GSM Modem

SIM900A module from SIMCOM provides the GSM connectivity for the eStorm-L1 platform. It

is a dual band GSM/GPRS engine working on frequencies EGSM 900MHz and DCS 1800MHz.

GSM module is interfaced with eStorm-L1 via serial UART2 interface. Sim900A supports

standard AT commands and is integrated with the TCP/IP protocol accessible through extendedTCP/IP AT commands especially for use in data transfer applications.

The antenna interface is provided through right angled SMA connector. The SIM900A is

interfaced with power saving technique there by powered on only when needed. The modulesupports both 1.8V and 3V SIM card. Necessary ESD protection is provided for both antennaand SIM card interface.

3.3

Secure Digital Card

User data storage option is provided in eStorm-L1 using the MicroSD card interfaceimplemented over SPI protocol. The standard MicroSD card connector allows easy interface ofcommercially available low cost cards.

3.4 Serial communication

eStorm-L1 supports RS-232 or RS-485 mode of serial communication at a time. UART1available in microcontroller is used for serial communication. Industrial grade transceiver chipsare chosen for both the mode of serial communication.

3.5 Analog inputs

eStorm-L1 supports eight channels of analog inputs with separate signal conditioning circuit foreach channel. The analog input signal conditioning circuit is designed to measure the analogsignals in both voltage and current mode with variable gain settings.

The following block diagram depicts the hardware arrangement of the analog input circuit:

Figure 3: Analog input circuit


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3.6 Digital inputs

eStorm-L1 supports four channels of digital inputs if character LCD display option is not

required and two channels of digital inputs if character LCD display is required. An OpAmpcomparator circuit is provided for protection of the microcontroller from noisy and high voltageinput spikes. The digital inputs may be of switch closure or pulse type.

The following block diagram depicts the hardware arrangement of the digital input circuit:

Figure 4: Digital input circuit

3.7 Digital outputs

eStorm-L1 supports operating digital outputs in two modes of operation - digital switch modeand relay mode. Based on user request, only one of them will be enabled during production.

Digital switch mode:

In this mode, internally FETs are driven and can be used as digital switches. This configurationdictates use of two terminal blocks to be used as the terminal of each digital switch. This mode

is suitable when an external power supply is required to energize the load.eStorm-L1 supports 4 digital outputs in FET mode if character LCD option is not required and 2

digital outputs if character LCD option is required

Relay mode:

In this mode, internally BJTs are driven by the microcontroller and can in turn used to driverrelays using the same DC power supply used by the eStorm-L1. In this mode, only oneterminal block is sufficient for each relay. eStorm-L1 supports 8 digital outputs in relay mode ifcharacter LCD option is not required and 4 digital outputs if character LCD option is required.


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The following block diagram depicts the hardware arrangement of digital output:

In this mode, the Field Effect Transistor will act as a switch, energizing the load with external

power supply when the output on the GPIO pin is high.

Figure 5: Digital output circuit

In this mode the Bipolar Junction Transistor will act as a switch, energizing the load withavailable input 5V/12V dc power when the output is high on the GPIO pin.


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3.8 Character LCD Display

eStorm-L1 supports character LCD display option for human machine interface. Character LCD

display is controlled through GPIO pins available in microcontroller. With eight data lines andtwo control lines, eStorm-L1 can be used to interface either a 16 x 1, 16 x 2 or 16 x 4character LCD depending upon the requirement.

The following block diagram depicts the hardware arrangement of LCD display interface:

Figure 6: LCD display interface circuit

The contrast can be adjusted with external POT adjustment of through the analog outputoption from DAC of the microcontroller. LCD ON and OFF control is also incorporated with GPIO

lines and transistor switch.


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3.9 Navigation keypad

eStorm-L1 supports navigation membrane keypad interface with five keys for navigation

function such as up, down, left, right, and ok. Each key is connected to a GPIO pin of themicrocontroller and will have a pull up resistor connected to 3.3V. On pressing the switch,corresponding GPIO pin will be pulled down to the ground level and detected by the

microcontroller.

The following block diagram depicts the hardware arrangement of navigation keypad interface.

Figure 7: Navigation Keypad interface circuit


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3.10 Touchpad

eStorm-L1 supports capacitive touchpad interface with five electrode for five different

functions. For example, the navigation membrane keypad can be replaced by a capacitivetouchpad by using five electrode touchpad and connecting the electrode to the touch sensorinput pin of the microcontroller. The five touch sensor input pin of the microcontroller is routed

to the key connector which is also used for navigation keypad interface.

The following block diagram depicts the hardware arrangement of capacitive touchpadinterface.

Figure 8: Capacitive touchpad interface circuit


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3.11 Configuration Switch

eStorm-L1 supports a general purpose switch that can be configured according to the need ofthe user, for example to perform a factory reset operation. A Right angled switch is provided

for this purpose with pull up resistor for the GPIO pin, such that when this switch is pressedthe GPIO pin is pulled down and required operation can be performed according to the userrequirement.

3.12

LEDs

eStorm-L1 has an LED interface to support up to 3 LEDs each driven by a microcontroller GPIOpin for visual indication. It can be configured by the user according to the application usage.


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4. eStorm-L1 Connectors and Pin Outs

This section describes pin outs and various indications of the eStorm-L1 platform.

4.1 Connector Placements

The following figure shows the top view and bottom view of eStorm-L1 board and connectordetails.


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Figure 9: Connector Placement


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4.2 Connector details

Following table describes various connectors available in the board and their pin outs along

with the description:

Connector Connector/Connection details Description

J1 Terminal blocks (Top)As serial communication, digital input,digital output and power supply

connector.

J2 Switch connector For interfacing external switch.

J3 Key/TSI connectorFor interfacing navigation keypad or

capacitive touchpad

J4 LCD connector For interfacing character LCD display

J5 MicroSD card connector For MicroSD card storage option.

J6 LED connectorInterfacing three LEDsfor application

specific usage.

J7 Terminal blocks (Bottom) As analog input connector.

J9 Power Jack Single 5V/12V DC supply

J10 USB B connector For USB device operation

J11 SWD connector For SWD debugging.

U12 Right angled RF Antenna connectorFor connecting RF antenna to GSM

circuit

U15 SIM card connectorFor connecting standard 6-pin SIMcard

BT1 20mm Coin cell connector For RTC backup.

SW1 Right angled configuration switch For user application specific usage

GSM SIM900A Interface GSM Processor pin connection

EEPROM 24AAXX Interface EEPROM Processor pin connection

Table 2: Connector details


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4.3 Pin Outs

The following sections describe the various connector pin outs.

4.3.1

Terminal blocks (Top) pin out

The following table describes the pin details of the terminal blocks (J1) along with thedescription.

Connector

Pin No

Connector

Pin name

Processor

Pin name

Processor

Pin number

Description

1

RS-232_TX

UART1_TX 1

RS-232 transmit signal pin in RS-232 serialcommunication mode

RS-485_ARS-485 A signal pin in RS-485 serialcommunication mode

2

RS-232_RX

UART1_RX 2

RS-232 receive signal pin in RS-232 serial

communication mode

RS-485_BRS-485 B signal pin in RS-485 serialcommunication mode

3 VIN

5V/12V DC input to the device. Can be usedfor 5V/12V DC output from the device ifpower is supplied through the power jack

(J9).

4 GND Ground terminal

5 DIN1 PTE20 9Digital input pin 1. For more details refer

section3.6

6 DIN2 PTE21 10

Digital input pin 2. For more details refersection3.6.

The MCU GPIO pin is also used for characterLCD display. If LCD display option is requiredthis pin cannot be used. Should be left open.

7 DIN3 PTE24 20Digital input pin 3. For more details refersection3.6

8 DIN4 PTE25 21

Digital input pin 4. For more details refersection3.6.


9

DC_1P PTE23 12Digital output pin 1. This pin is the collector ofthe BJT in relay mode.For more details refer section3.7

DC_1P

PTE23 12

Drain of the FET in digital switch mode.For more details refer section3.7

10

DC_1NSource of the FET in digital switch mode.

For more details refer section3.7

DC_2 PTE31 19Digital output pin 2. This pin is the collector ofthe BJT in relay mode.For more details refer section3.7

11 DC_3P PTA5 27

Digital output pin 3. This pin is the collector of

the BJT in relay mode. For more details refersection3.7


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ConnectorPin No

ConnectorPin name

ProcessorPin name

ProcessorPin number

Description

DC_3P

PTA5 27

Drain of the FET in digital switch mode.For more details refer section3.7

12

DC_3NSource of the FET in digital switch mode.


DC_4 PTA12 28Digital output pin 4. This pin is the collector ofthe BJT in relay mode.


13

DC_5P PTA13 29

Digital output pin 5. This pin can be thecollector of the BJT in relay mode. For more

details refer section3.7.The MCU GPIO pin is also used for characterLCD display. If LCD display option is required

this pin cannot be used. Should be left open.

DC_5P

PTA13 29

Drain of the FET in digital switch mode. Formore details refer section3.7.


14

DC_5N

Source of the FET in digital switch mode. Formore details refer section3.7.The MCU GPIO pin is also used for characterLCD display. If LCD display option is required


DC_6 PTB16 39

Digital output pin 6. This pin is the collector ofthe BJT in relay mode. For more details refer

section3.7.The MCU GPIO pin is also used for character

LCD display. If LCD display option is requiredthis pin cannot be used. Should be left open.

15

DC_7P PTB17 40

Digital output pin 7. This pin is the collector ofthe BJT in relay mode. For more details refer

section3.7.The MCU GPIO pin is also used for characterLCD display. If LCD display option is requiredthis pin cannot be used. Should be left open.

DC_7P

PTB17 40

Drain of the FET in digital switch mode. Formore details refer section3.7.The MCU GPIO pin is also used for characterLCD display. If LCD display option is required


16

DC_7N

Source of the FET in digital switch mode. Formore details refer section3.7.The MCU GPIO pin is also used for characterLCD display. If LCD display option is requiredthis pin cannot be used. Should be left open.

DC_8 PTB18 41

Digital output pin 8. This pin can be thecollector of the BJT in relay mode. For moredetails refer section3.7.


Table 3: Terminal blocks (Top) pin outs


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4.3.2 Switch connector pin out

The following table describes the pin details of the switch connector (J2) along with thedescription.

ConnectorPin no ConnectorPin name ProcessorPin name ProcessorPin number Description

1 SW1 PTC9 54Connect terminal one of theswitch

2 GNDConnect terminal two of theswitch

Table 4: Switch Connector pin outs

4.3.3 Key/TSI connector pin out

The following table describes the pin details of the key connector (J3) wither for usage withkeypad or with Touch Sensor Input (TSI) along with the description.

ConnectorPin no

ConnectorPin name

ProcessorPin name

ProcessorPin number

Description

1 Key1 PTA1/TSI0_CH2 23Connect a terminal of key 1 orConnect the TSI electrode 1

2 Key2 PTA2/TSI0_CH3 24Connect a terminal of key 2 orConnect the TSI electrode 2

3 Key3 PTB19/TSI0_CH12 42Connect a terminal of key 3 or

Connect the TSI electrode 3

4 Key4 PTB2/ TSI0_CH7 37Connect a terminal of key 4 orConnect the TSI electrode 4

5 Key5 PTB3/ TSI0_CH8 38Connect a terminal of key 5 or

Connect the TSI electrode 56 GND

Connect the other terminal of all the

five keys for ground.

Table 5: Key Connector pin outs

4.3.4 LCD connector pin out

The following table describes the pin details of the LCD connector (J4) for interfacing character

LCD along with the description.

ConnectorPin no

ConnectorPin name

ProcessorPin name

ProcessorPin number

Description

1 LCD_GND LCD ground

2 VDD_5V 5V DC output to LCD

3 VO_C DAC0_OUT 18Contrast adjustment pin with inbuiltadjustment settings with resistor orDAC

4 LCDRS PTE21 10

Instruction / data register selectionpin.

The MCU GPIO pin is also used for

digital input option. If digital inputoption is required this pin cannot beused. Should be left open.


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ConnectorPin no

ConnectorPin name

ProcessorPin name

ProcessorPin number

Description

5 GND Ground for write operation only

6 LCDE PTE25 21

LCD enable signal.

The MCU GPIO pin is also used fordigital input option. If digital inputoption is required this pin cannot be

used. Should be left open.

7 DB0 PTB16 39

Data input line 1.

The MCU GPIO pin is also used fordigital output option. If digitaloutput option is required this pincannot be used. Should be leftopen.

8 DB1 PTB17 40

Data input line 2.

The MCU GPIO pin is also used fordigital output option. If digitaloutput option is required this pin

cannot be used. Should be leftopen.

9 DB2 PTB18 41

Data input line 3.

The MCU GPIO pin is also used fordigital output option. If digital

output option is required this pincannot be used. Should be leftopen.

10 DB3 PTD4 61 Data input line 4

11 DB4 PTD7 64

Data input line 5.

The MCU GPIO pin is also used forRS-485 serial communication. IfRS-485 serial communication isrequired this pin cannot be used.Should be left open.

12 DB5 PTC3 46 Data input line 613 DB6 PTC0 43 Data input line 7

14 DB7 PTC1 44 Data input line 8

15 VDD_5V 5V DC output for LED backlight

16 LCD_GND Backlight LED ground

Table 6: LCD Connector pin outs

Further for power optimization, to switch on and off the LCD display a BJT circuit is provided.By setting the pin PTA13 (processor pin number 29) high, the LCD can be switched ON and by

setting the same to low, the LCD can be switched OFF.


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4.3.5 MicroSD connection details

The following table describes the pin mapping of the microSD signals to the processor pins.

S.No Signal

name

Processor

Pin name

Processor

Pin number

Description

1 SD_MISO SPI0_MISO 52 Master in slave out signal

2 SD_MOSI SPI0_MOSI 51 Master out slave in signal

3 SD_SCK SPI0_SCK 50 SPI serial clock signal

4 SD_CS SPI0_PCS0 57 SPI chip select signal

5 SD_CD PTC4 49MicroSD card detect. Also used forGSM power ON/OFF control. Notavailable if GSM option is selected.

Table 7: MicroSD connection details

4.3.6 LED Connector Pin out

The following table describes the pin details of the LED connector (J6) along with the

description.

ConnectorPin no

ConnectorPin name

ProcessorPin name

ProcessorPin number

Description

1 LED1* PTA0 22 For interfacing LED 1

2 LED2* PTA3 25 For interfacing LED 2

3 LED3 PTC8 53 For interfacing LED 3

4 GND Common ground

Table 8: LED Connector pin outs

Note:

1. * - LED 1 Pin is shared with SWDCLK and LED 2 pin is shared with SWDDIO.


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4.3.7 Terminal blocks (Bottom) pin out

The following table describes the pin details of the terminal blocks (J7) along with the

description.

Connector

Pin no

Connector

Pin name

Processor

Pin name

Processor

Pin number*

Description

1 AIN1_P

ADC0_SE3 11

Differential analog inputsignal 1 positive terminal.

2 AIN1_NDifferential analog inputsignal 1 negative terminal.

3 AIN2_P

ADC0_SE4B 17


4 AIN2_NDifferential analog input

signal 2 negative terminal.5 AIN3_P

ADC0_SE5B 58



7 AIN4_P

ADC0_SE6B 62



signal 4 negative terminal.

9 AIN5_P

ADC0_SE7B 63



signal 5 negative terminal.11 AIN6_P

ADC0_SE8 35

Differential analog input

signal 6 positive terminal.


13 AIN7_P

ADC0_SE9 36



15 AIN8_P

ADC0_SE11 45



signal 8 negative terminal.

Table 9: Terminal blocks (Bottom) pin outsNote:

1. *The Analog Input voltages are applied to gain circuits and the scaled values are inputto the corresponding processor ADC Pin.


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4.3.8 SWD Connector Pin Out

The following table describes the pin details of the SWD connector (J11) along with thedescription.

ConnectorPin no ConnectorPin name ProcessorPin name ProcessorPin number Description

1 VDD_3V3 3.3V DC

2 SWDDIO* SWD_DIO 25

Serial wire debug datainput/output. The pin isused by an external

debug tool forcommunication anddevice control.

3 SWDCLK* SWD_CLK 22

Serial Wire Clock. Thispin is the clock fordebug logic when inthe Serial Wire Debugmode.

4 SWD_RESET RESET 34For external devicereset option.

5 GND Ground

Table 10: SWD connector pin outs

Note:

1. * - SWDCLK Pin is shared with LED 1 and SWDDIO pin is shared with LED 2.

4.3.9

GSM Connection Information

The following table describes the pin mapping of the GSM signals to the processor pins.

S.No Signalname

ProcessorPin name

ProcessorPin number

Description

1 TXD_MODEM UART2_RX 59 GSM modem transmit signal

2 RXD_MODEM UART2_TX 60 GSM modem receive signal

3 PWRKEY PTC4 49 GSM power ON/OFF control signal

Table 11: GSM connection details

4.3.10 EEPROM Connection Information

The following table describes the pin mapping of the EEPROM signals to the processor pins.

S.No Signalname

ProcessorPin name

ProcessorPin number

Description

1 SDA I2C1_SDA 55 I2C data signal

2 SCL I2C1_SCL 56 I2C clock signal

Table 12: EEPROM connection details


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eStorm-L1-DMR1.1

5. Electrical and Environmental Specification

Parameter Min Typical MaxInput power supply 5V/12V DC

Operating temperature -40 degree Celsius +25 degree Celsius +85 degree Celsius

Current rating 1.5A*

Note:

1. * - Current rating of all configurations working including GSM and LCD.

6. Legal Notice

6.1 Customer Support

Embien Technologies are excited to offer our customers an easy out of box experience byproviding board support package, software demos, user manuals and other electro mechanicaldocumentation to get our evaluation modules up and running.

Customer product development support is a part of standard support offer from EmbienTechnologies. If customers are interested, Embien Technologies can offer product developmentservices around Embiens eStorm-L1 platform. This includes application board (daughterboard) development, Board Support package (BSP) development and application softwaredevelopment.

6.2 Usage Restriction

Embien Technologies products are excellent starting point for customers applicationsdevelopment. But, selection and usage of Embien Technologies products for a particularapplication is responsibility of customers. In order to minimize risks associated with customerapplications, the customer must use adequate design and operating safeguards to minimize

inherent or procedural hazards.

Embien Technologies products are not intended for use in life support systems and appliances,nuclear systems or systems where malfunction can reasonably be expected to result in

personal injury, death or severe property or environmental damage. Any use of products by

the customer for such purposes are at the customers own risk.

estorm-l1 data manual

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