Freescale PowerPoint Templatecache.freescale.com/files/training/doc/dwf/DWF13_APF_SEG_T0304.pdf · −RF communications for automatic meter reading Flow Sensor MCU Kinetis L LCD Serial

TM

Freescale, the Freescale logo, AltiVec, C-5, CodeTEST, CodeWarrior, ColdFire, ColdFire+, C-

Ware, the Energy Efficient Solutions logo, Kinetis, mobileGT, PEG, PowerQUICC, Processor

Expert, QorIQ, Qorivva, StarCore, Symphony and VortiQa are trademarks of Freescale

Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. Airfast, BeeKit, BeeStack, CoreNet, Flexis,

Layerscape, MagniV, MXC, Platform in a Package, QorIQ Qonverge, QUICC Engine, Ready Play,

SafeAssure, the SafeAssure logo, SMARTMOS, Tower, TurboLink, Vybrid and Xtrinsic are

trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of

their respective owners. © 2013 Freescale Semiconductor, Inc.

May 2013

2

TM Freescale, the Freescale logo, AltiVec, C-5, CodeTEST, CodeWarrior, ColdFire, ColdFire+, C-Ware, the Energy Efficient Solutions logo, Kinetis, mobileGT, PEG, PowerQUICC,

Processor Expert, QorIQ, Qorivva, StarCore, Symphony and VortiQa are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. Airfast, BeeKit, BeeStack, CoreNet,

Flexis, Layerscape, MagniV, MXC, Platform in a Package, QorIQ Qonverge, QUICC Engine, Ready Play, SafeAssure, the SafeAssure logo, SMARTMOS, Tower, TurboLink, Vybrid and

Xtrinsic are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2013 Freescale Semiconductor, Inc.

• Familiarize with Kinetis L microcontroller family of devices.

• Understand major flow metering principles and methods.

• Discover Kinetis L advantages for flow metering applications.

Flow measurement is essential in many industries such as the oil,

power, chemical, food, water, and waste treatment industries. These

industries require the determination of the quantity of a fluid, either

gas, liquid, or steam, that passes through a check point, either a

closed conduit or an open channel, in their daily processing or

operating. The quantity to be determined may be volume flow rate,

mass flow rate, flow velocity, or other quantities related to the previous

three.

3





• Introduction to Flow Metering

• Kinetis L Family of Microcontrollers

− Cortex-M0+ Processing Core

− Low Power Operation

− Clock Management

− Analog Peripherals

− HMI Interface

− Timers

• Flow Meter Principles and Use-Cases

• Summary

4





• Measure − Water and Gas meters must

measure the volume of fluid consumed by the user

− Heat meters must measure the amount of heat delivered to a location

• Process − Accurate time keeping tracks the

volume over a period of time for billing purposes

− The core processor is used to accumulate and calculate

− Tamper processing ensures security

• Display/Communicate − LCD display allows visual

inspection − HMI (Touch Sensing Interface)

allows system configuration. − UART/IR allows download of data

for utility companies − RF communications for automatic

meter reading

Flow

Sensor

MCU Kinetis L

LCD

Serial

Interfaces

Battery

Tamper

Optocoupler

IEC1107

RS485

RTC

Water or Gas Line

LC

D D

river

Communications

Interfaces

RF

HMI

(TSI)

MEASURE PROCESS DISPLAY

5





• The system containing a flow meter will be capable of interrupting the flow if it fails to measure it or it detects any occurrence of tamper events

• The meter will operate in low-power mode for most of the time and will return to normal mode for updating/communicating reading

• COP will be running to reset the system in-case of runaway code

• The flow will be measured by a suitable sensor. The sensor will provide the flow rate in the form of digital pulses or by a varying analog output proportional to the flow rate.

• The flow readings will be stored in EEPROM, in periodic intervals (say every minute), using I2C. This will ensure that the meter reading is not lost in case of power down.

• The meter can be read in three ways:

− LCD Display

− Through RS-232/485 communication interface using SCI

− Wirelessly through Infrared interface supported over SCI

• The meter will measure time and detect external tamper events through RTC

• The meter will be parameterized through local control panel with buttons implemented using capacitive sensing principle.

• The meter will run on battery supply. The battery condition will be monitored by ADC to generate a LOW Battery warning.

• The meter will have provision for resetting its count. The exact method for resetting the meter will be implementation specific

6











− HMI Interface

− Timers


• Summary

7





Perf

orm

an

ce

Integration

32-bit ARM Cortex-M4

32-bit ARM Cortex-M0+

Freescale Bundled IDE, RTOS & Middleware - Rapid prototyping Platform - Broad ARM Ecosystem Support

Leading Performance - Low Power - Scalability - Industrial-grade reliability & temperature

Kinetis K Series ARM Cortex-M4,

50-150MHz, 32kB-1MB,

32-256pin, low power,

mixed-signal, EEPROM,

connectivity, HMI & security

Kinetis X Series ARM Cortex-M4,

200MHz, 0-4MB, advanced

performance, memory and

feature integration

Kinetis L Series ARM Cortex-M0+,

48MHz, 8-256kB, 16-121pin,

ultra-low power, mixed-

signal, connectivity & HMI,

compatible with K Series

8





• ARM Cortex-M0+ Processor

• 90nm low-power flash technology

• Bit Manipulation Engine

• <50uA/MHz

• Peripheral Bridge Crossbar

• Zero Wait State Flash Memory Controller

Ultra-efficient processing

• 90nm low-leakage flash technology

• Multiple RUN, WAIT and STOP modes

• 4us wake-up from deep sleep modes

• Clock & power gating, low-power boot options

• 2uA Deep Sleep Idd with register retention, LVD active and 4.3us wake-up

Ultra low-power

modes

• Smart peripherals function in deep sleep modes and can make intelligent decisions and process data without waking up the core – ADMA, UART, Timers, ADC, Segment LCD, Touch Sensing...

Energy-saving peripherals

Most Innovative

Process

Technology

Kinetis ARM®

Cortex-M4 MCUs

http://www.ubmtechinsights.com/news-and-events/press-releases/Intel-Micron-Collaboration-Wins-Insight-Award-for-Semiconductor-of-the-Year/

9





Optional Features

Internal Memory Communications HMI

KL4 Family, USB, Segment LCD, 64-121 pin

128-256kB Flash 16-32kB SRAM USB OTG (FS) Segment LCD

KL3 Family, Segment LCD, 64-121 pin

64-256kB Flash 8-32kB SRAM Segment LCD

KL2 Family, USB, 32-121 pin

32-256kB Flash 4-32kB SRAM USB OTG (FS)

KL1 Family, Baseline, 32-80 pin

32-256kB Flash 4-32kB SRAM

KL0 Family, 8-bit S08P pin compatible, 16-48pin

8-32kB Flash 1-4kB SRAM

Common Features

System

ARM Cortex-M0+ Core, 48MHz

Multiple Low Power Operation Modes, Clock Gating, 1.71V - 3.6V

DMA, Cross-Bar Switch

Operating Temp: -40 to 105°C

Memory

90nm TFS Flash Memory (High Reliability, Fast Access)

SRAM

Internal Memory Security/Protection

Analog Peripherals

16-Bit ADC[1]

12-bit DAC

High-Speed Comparators

Low-power Touch Sense Interface

Serial Interfaces

LPUART, UART[2]

SPI, IIC

Timers

RTC

Low Power TPMs

Low Power Timers

System Timers

[1] Feature not available on KL0 MCUs (KL0 MCUs have 12-bit ADC)

[2] Feature not available on KL0 MCUs (KL0 MCUs have LPUART)

10





KL35/KL34 Family

Analog Interfaces

System

Peripheral Bus

Energy Management

Power On

Reset

Low Voltage

Detector

Voltage Regulator

Clock Management

FLL

Timers

SRTC Temp. Compensated

I/O Ports Connectivity

I2C x 2 12-bit

DAC HSCMP

Flash

64-256K RAM 8-32K

Debug

(SWD)

COP

RST

Unique ID

DMA 4-ch

TSI x

16ch

Up to 80 GPIO

(4 High Dive)

w/ 25 interrupt

LPO

(1KHz)

RST/

Input LPTMR

Crystal

Oscillator (low & high

range)

16b LPTPM

6ch x1, 2ch x 2

SPI x 2

ADC (SAR w/ DMA)

12/16-bit, up to 16ch

Run Operation in: Wait VLLS

1

VLLS

0 Stop/

VLPS

VLLS

3

HMI

Segment LCD

51x8/55x4

ARM Cortex-M0+ Core Ultra-low power

48MHz bus freq.

Packages: 64LQFP, 100LQFP, 121MBGA

PIT 2ch, 32bit

LS Osc

(32KHz)

ULP Osc

(4MHz)

UART

x2

LPUA

RTx1

IIS

x1

PLL

11





KL35/KL34 Family

KL3x

Part Number

Memory Features Packages

Fla

sh (

KB

)

SR

AM

(K

B)

DM

A

UA

RT

SP

I

IIC

TS

I

12-b

it D

AC

16-b

it A

DC

12-b

it A

DC

GP

IO

Oth

er

24 Q

FN

(4X

4)

FK

25 W

LC

SP

(2.3

x2.3

)

32

LQ

FP

(7

X7

) L

C

32 Q

FN

(5X

5)

FM

35 W

LC

SP

(2.3

5x2.8

8)

48 L

QF

P (

7X

7)

LF

48 Q

FN

(7X

7)

FT

64

LQ

FP

(1

0X

10

) L

H

80 L

QF

P (

12X

12)

LK

10

0 L

QF

P (

14X

14

) L

L

MKL34Z64Vxx4 64 8 X 3 2 2 X 36-66

Segment

LCD

X X X

MKL35Z64Vxx4 64 8 X 3 2 2 X X X 36-66 X X X

MKL35Z128Vxx4 128 16 X 3 2 2 X X X 36-80 X X X

MKL35Z256Vxx4 256 32 X 3 2 2 X X X 36-80 X X X

12











− HMI Interface

− Timers


• Summary

13





90nm TFS

Memory

eDMA

Crossbar

Flash

Memory

Controller

Bit

Mani-

pulation

Engine

Integration

Micro

Trace

Buffer

RGPIO

Reduce # of Cycles

Autonomous & Precise Low Power Peripherals

Improved Performance

Smart Evolution Instead of Revolution

Comprehensive Compatibility

Reduce Overall Power Consumption

14





• ARMv6-M Thumb Instruction Set

− 32-bit performance at 16-bit density

• 32-bit Simplification

− 32-bit data structure

− 32-bit Address Space (no paging)

4,896

6,446

10,206 10,066

5,418

0

2,000

4,000

6,000

8,000

10,000

12,000

Corex-M0+ A (16-bit) B (16-bit) C (8-bit) D (8/16-bit)

Code compiled optimized for size

CoreMark Code in kB

48cycles*,

48Byte Code Size

8cycles,

8Byte Code Size

1cycle

2Byte Code Size

*8051 needs at

least 1cycle per

instruction byte

fetch as they only

have an 8-bit

interface

16-bit Multiplication Example

Code Efficiency

15





• Support concurrent access from DMA/Core to

memory and peripherals – offload CPU

• Kinetis L-Series devices support DMA

operation in low power modes

Bit

Manipulation

Engine

Direct

Memory

Access

ARM®

Cortex™-M0+

Flash

Memory

Controller

Rapid

GPIOs

Master Slave

The FMC supports 8-bit, 16-bit, and 32-bit

read operations from the program flash

memory.

In addition, the FMC provides two separate

mechanisms for accelerating the interface

between bus masters and program flash

memory. A 32-bit speculation buffer can

prefetch the next 32-bit flash memory

location, and a 4-way, 4-set program flash

memory cache.

Any operation involving a DMA

channel follows the same three

steps:

1.Channel initialization

2.Data transfer

3.Channel termination

Reduce cycles with parallelization and acceleration schemes

16











− HMI Interface

− Timers


• Summary

17





Mode CPU/Bus

Freq. Details

Peripheral

Clocks

Typical Idd

@ 3V, 25C

Recovery

Time

RUN

48/24 MHz

MAXIMUM CPU/Bus frequency.

Compute clocking option SUPPORTED

ENABLED 6.38mA (133uA/MHz) -

48/24 MHz DISABLED 4.44mA (93uA/MHz) -

48/- MHz Compute

Operation* 3.98mA (83uA/MHz) -

VLPR

4/1 MHz

RESTRICTED CPU/Bus frequency.

Compute clocking option SUPPORTED

LVD OFF. Flash programming NOT supported

ENABLED 219uA (55uA/MHz) -

4/1 MHz DISABLED 170uA (43uA/MHz) -

4/- MHz Compute

Operation* 156uA (39uA/MHz) -

WAIT 48/24 MHz MAXIMUM CPU/Bus frequency. CPU in SLEEP, peripherals functional.

Compute clocking option NOT supported DISABLED 3.88mA -

VLPW 4/1 MHz RESTRICTED CPU/Bus frequency. CPU in SLEEP, peripherals functional.

Compute clocking option NOT supported.

LVD OFF. Flash programming NOT supported

DISABLED 112uA 4us

STOP - MCU in static state, LVD ON. Energy-saving peripherals functional with ADMA.

AWIC detects wake-up source for CPU. - 309uA 4.3us

VLPS - Same as STOP mode. LVD OFF. - 2379nA 4.3us

LLS - MCU in low-leakage state retention power mode. LLWU detects wake-up source for

CPU including LPTMR, RTC, TSI, CMP, and select pin interrupts. Fast wake-up. - 1738nA 4.6us

VLLS3 - MCU in low-leakage mode, most internal logic OFF. All RAM contents retained and

I/O states held. LLWU controls wake-up source for CPU similar to LLS mode. - 1344nA 53us

VLLS1 - MCU in low-leakage mode, most internal logic OFF. All RAM is powered off and I/O

states held. LLWU controls wake-up source for CPU similar to LLS mode. - 713nA 115us

VLLS0 - Pin wakeup supported. LPTMR, RTC, TSI and CMP wake-up supported with external

clock. Optional POR brown-out detection circuitry. -

411nA (POR) /

205nA (no POR) 115us

RU

N

WA

IT

(SL

EE

P)

ST

OP

(DE

EP

SL

EE

P)

*Compute Operation shuts off bus and system clock for lowest power core processing.

Peripherals with an alternate asynchronous clock source can continue to operate.

18





• Low-leakage 90nm TFS Flash

• Ultra-fast recovery time

− Rapid, 4us transition time from Deep Sleep to Run modes

− Minimize average power consumption in frequent power mode change applications

• Low Leakage Wake-up Unit

− Full shutdown of core logic extends low power wake-up capability of some peripherals in all power modes

Power Mode Recovery

Time

“Typical” Idd

Range (est.)

LLS 4.6us From 1.738uA

VLLS3 53us From 1.334uA

VLLS1 115us From 713nA

VLLS0 115us From 205nA

(NO POR)

• Asynchronous DMA

− Allows peripherals to trigger asynchronous DMA requests in STOP/VLPS without CPU intervention

• Communications

− UART, SPI, IIC, USB – support wake-up function down to STOP/VLPS modes

• Mixed-Signal

− ADC – single conversions in STOP/VLPS modes with hardware averaging and automatic compare

− ACMP – triggered compare mode for lower average power compares

− DAC – static reference in all modes

• Timing

− Low Power Timer – input capture, output compare and PWM in STOP/VLPS modes

− RTC – low power operation with temperature & voltage compensation

• User Interface

− Segment LCD - blink capability in all power modes

− Touch Sensing - wake-on touch on single channel in all power modes

19











− HMI Interface

− Timers


• Summary

20





Frequency-locked loop (FLL) • DCO frequency range is programmable for

up to four different frequency ranges. • Input frequency range 31.25 – 39.0625 kHz

• 3% deviation over voltage and temperature using internal 32 kHz internal reference clock

Phase-locked loop (PLL) • External reference clock is used to control

the PLL • Modulo VCO frequency divider • Input frequency range 2.0 – 4.0 MHz • Phase/Frequency detector

Internal reference clock generator: • Slow clock with nine trim bits for accuracy • Fast clock with four trim bits • Slow or the fast clock can be selected as the

clock source for the MCU and for other on-chip peripherals

Others: • MCGPLLCLK/2, MCGFLLCLK, MCGIRCLK,

OSCERCLK and ERCLK32K are provided as a clock source for other on-chip peripherals

• Two clocks for on-chip peripherals that can work in LLS and VLLSx modes (OSCERCLK and ERCLK)

• Two independent postscalers: 1. Core, platform and system clock 2. Bus and flash clock

OSC Clock Sources

External

crystal

oscillator or

resonator

Low frequency:

32 – 40 kHz

High frequency:

3 – 8 MHz (low range)

8 – 32 MHz (high range)

External

square wave

input clock

DC to 48 MHz

Oscillator (OSC)

• Automatic Gain Control (AGC) to

optimize power consumption in high

frequency ranges using low–power

mode

• High gain option in all frequency

ranges

• Voltage and frequency filtering to

guarantee clock frequency and

stability

VLPR VLPW Stop VLPS LLS VLLSx

OSCE

RCLK1

OSCE

RCLK1

OSCE

RCLK

OSCE

RCLK1

limited to low

range/low power

limited to low range/low

power in VLLS1/31

1) Max of 16 MHz crystal 2) OFF in VLLS0 but can work in bypass mode

21











− HMI Interface

− Timers


• Summary

22





• Output Modes: Differential 16-bit, 13-bit, 11-bit and 9-bit modes, or single-ended 16-bit, 12-bit,10-bit and 8-bit modes

• Output formatted in 2’s complement 16b sign extended for differential modes

• Output in right-justified unsigned format for single-ended

• Single or continuous conversion (automatic return to idle after single conversion)

• Configurable sample time and conversion speed/power

• Input clock selectable from up to four sources

• Programmable operation in some low-power modes for lower noise operation

• Asynchronous clock source for lower noise operation with option to output the clock

• Selectable asynchronous hardware conversion trigger with hardware channel select

• Automatic compare with interrupt for less-than, greater-than or equal-to, within range, or out-of-range, programmable value

• Temperature sensor

• Conversion rate up to 813ksps (13-bit mode)

• Hardware average function

• Selectable voltage reference: VREFH or VDDA

• Self-Calibration mode


FF FF

ADC

internal

clock only

ADC

internal

clock only

Static OFF

23





CMP:

• Continuous and Sampled modes

• Programmable filter and hysteresis

• Reference option: VDD or VREFH

ANMUX:

• Up to seven independently selectable channels for positive and negative comparator inputs

• Five external pin inputs and several internal reference options including 6-bit DAC0, 12-bit DAC0 and bandgap (1V).

6-bit DAC:

• Output range (Vin/64) to Vin

• VDD or VREFH selectable as reference

1) High-Speed Comparison mode 2) Low-Speed Comparison mode 3) OFF in VLLS0


FF FF HS1 / LS2

Compare

HS1 / LS2

Compare

LS

Compare

LS

Compare3

24











− HMI Interface

− Timers


• Summary

25





• Segment fault detection capability − Hardware support for segment LCD display errors

• Up to by 8 multiplexing

− Fewer pins required to drive LCD segments

Up to 51 front plane signals (up to 4x51)

Up to 8 back planes signals (up to 8x47)

• Low power blinking mode

− LCD glass blink capability in low power modes

− Alternate display feature can be activated to display alternate data (i.e. blink flow in m3 and time)

• Front and back plane re-assignment

− Any LCD pin can be a front plane or backplane pin or GPIO function

• Internal charge pump provides voltage required to power LCD glass

− Internally regulated voltage for constant contrast across MCU VDD

− Trim register for software contrast control

− Drive for 3V LCD glass

Async operation = Fully functional with alternate clock

source, provided the selected clock source remains

enabled


FF FF Async

operation

Async

operation

Async

Operation

Async

operation1

1) OFF in VLLS0

26





• Capacitive touch sensing detection across all low power modes

− Internal reference oscillator for high-accuracy measurement

− Configurable software or hardware scan trigger

− Compensate for temperature and supply voltage variations

− High sensitivity change with 16-bit resolution register

− Configurable up to 4096 scan times

− Support DMA data transfer

− Noise modes

− Low power mode current adder can be <1uA

• 16 input capacitive touch sensing pins

− Automatic detection of electrode capacitance across all operational power modes

− No need for external pull-up resistors

− Support DMA data transfer

• TSI interrupts

− End of Scan

− Out of Range (selectable scan period and thresholds)

MCU 1 2 3

4 5 6

7 8 9

* 0 #


FF Async

operation

Async

operation

Async

operation

Async

Operation

Async

operation

Async operation = TSI wakeup from all low

power modes is limited to a single selectable pin

http://www.freescale.com/touchsensing

27











− HMI Interface

− Timers


• Summary

28





• 32-bit seconds counter with roll-over protection and 32-bit alarm

• 16-bit prescaler with compensation that can correct errors between 0.12 ppm and 3906

ppm

• Register write protection

• Lock register requires POR or software reset to enable write access

• Reset only by POR

• 1 Hz square wave output

• Remains functional in all low power modes and can generate an interrupt to exit any

low power mode.

• Does not have a dedicated VBAT domain.

• Clock source can be OSC32KCLK, LPO or external RTC_CLKIN

• RTC_CLKIN is the only source in VLLS0 modes

• RTC_CR [OSCE] over-rides system oscillator configuration, enabling 32kHz VLP

mode.


FF FF Async

operation

Async

operation

Async

Operation

Async

operation1

1) In VLLS0 the only clocking option is from RTC_CLKIN (external clock)

29





Low Power Timer Features:

• 16-bit time counter or pulse counter with compare

− Optional interrupt can generate asynchronous wakeup from any low-power mode

− Hardware trigger output

− Counter supports free-running mode or reset on compare

• Configurable clock source for prescaler/glitch filter

• Configurable input source for pulse counter

• Operates across all power modes, including the low-leakage modes

• Continue operating through most system reset events, allowing it to be used as a time of day counter

Timer/PWM Features:

• Includes 16-bit global counter

• All TPM instances can operate from global counter

• Includes 6 channels that can be configured for input

capture, output compare, or edge-aligned PWM

mode

• TPM counter operates asynchronous to bus clock

• Remains fully functional in STOP/VLPS (if clock

remains enabled)

• Supports asynchronous interrupt and DMA request

• Counters not used for global counter can be used

separately for pulse accumulation or periodic

interrupts or periodic DMA requests

• Supports basic trigger generation for ADC

• Can be configured to start incrementing on trigger

input, clear counter on trigger input, or stop

incrementing on overflow


FF FF Async

operation

Async

operation

Async

Operation

Async

operation1


FF FF Async

operation

Async

operation Static OFF

1) LPO clock source is not available in VLLS0. Also, to use system OSC in

VLLS0 it must be configured for bypass (external clock) operation. Pulse

counting is available in all modes

30











− HMI Interface

− Timers


• Summary

31





• Rotary instruments that mechanically make direct measurements to the fluid by separating the fluid into segments of known values.

• Fluid goes through a chamber with a unit that repeatedly fills and discharges a fixed volume.

• The total volumetric flow rate can then be calculated from the rate of filling and discharging the discrete volumes

Source: http://automationwiki.com/index.php?title=Positive_Displacement_Flowmeters

Nutating-disk Meters Oval-gear Meters

http://automationwiki.com/index.php?title=Positive_Displacement_Flowmeters

http://automationwiki.com/index.php?title=File:Ovalgear_meter.jpg

http://automationwiki.com/index.php?title=File:Nutating_disc.jpg

32





• The turbine flow meter translates the mechanical action of the turbine rotating in the liquid flow around an axis into a user-readable rate of flow (gpm, lpm, etc.).

• Turbine flow meters are used for the measurement of natural gas and liquid flow.

• The flow direction is generally straight through the meter, allowing for higher flow rates and less pressure loss than displacement-type meters.

• They are the meter of choice for large commercial users, fire protection, and as master meters for the water distribution system.

Source: http://www.efunda.com/designstandards/sensors/flowmeters/flowmeter_tbn.cfm

http://www.efunda.com/designstandards/sensors/flowmeters/flowmeter_tbn.cfm

33





Courtesy: www.derex.com/blancett_PDmeter.html

Kinetis L

ADC

LCD Display

Non-volatile (MRAM, EEPROM)

LCD

DRIVER

VBAT

GPIO

SCI SPI I2C

Voltage

Regulator

Sub GHz RF 2.4GHz RF RS232/485 RS422

MCU Clock

X1

GPIO/ Counter/ LPTIM

Optional functionalities not mandatory for every Flowmeter

VBAT

Key Peripherals:

• Timer/Counter/Low power timer operating in stand-by mode

• LCD display driver and TSI

• RTC periodical wakeup

• Wide operating voltage required for battery operation

Clock Generator

RTC

TSI

Touch Sensing

http://www.derex.com/blancett_PDmeter.html

http://images.google.co.uk/imgres?imgurl=http://www.global-b2b-network.com/direct/dbimage/50143999/Segment_LCD_Module.jpg&imgrefurl=http://www.global-b2b-network.com/b2b/88/1346/page5/telecom_parts.html&usg=__sXYjcLG1d8irlU6721Vc6n_M2SY=&h=360&w=360&sz=19&hl=en&start=24&tbnid=bBU6PKCr1r0hPM:&tbnh=121&tbnw=121&prev=/images?q=lcd+segment+display&start=20&ndsp=20&hl=en&sa=N

http://images.google.co.uk/imgres?imgurl=http://www.partsprocurement.com/sendbinary.asp?path=FM31256-G.jpg&Width=125&imgrefurl=http://www.partsprocurement.com/Power-Management-ICs/RAMTRON-FM31256-G.asp&usg=__xDkwE4fni6n1wrJP69YZgVjEvxI=&h=84&w=125&sz=3&hl=en&start=96&tbnid=kZI7NZ4ToTKUhM:&tbnh=60&tbnw=90&prev=/images?q=ramtron&start=80&ndsp=20&hl=en&sa=N

http://images.google.co.uk/imgres?imgurl=http://embedded-system.net/embedded-system/images/rabbit-wireless-module.jpg&imgrefurl=http://embedded-system.net/zigbee-module-and-wi-fi-module-for-rabbitcore-rabbit.html&usg=__DLNVwtDs3wg9sye8sTtxZ289-R0=&h=548&w=350&sz=15&hl=en&start=13&tbnid=vZ4_2valEI1lbM:&tbnh=133&tbnw=85&prev=/images?q=zigbee&hl=en

34





Kinetis L

ADC


VBAT

GPIO

SCI SPI I2C

Voltage

Regulator

Sub GHz RF 2.4GHz RF RS232/485

RS422

MCU Clock

X1

Comparator (multiplexer)


VBAT

Key Peripherals:

• Comparator operating in VLPR mode

• LCD display driver and TSI


• Wide operating voltage required for battery operation

RTC GPIO

(output)

From

detectors

LED

Switching

Clock Generator

ADC

LCD Display

LCD

DRIVER

GPIO

TSI

Touch Sensing




35





• The tube is caused to vibrate by induction of fluctuating currents

• Flow through the tube causes it to twist proportionally to the flow. The distortion of the tube is detected by magnetic sensors and the resultant signal is conditioned and sent to control equipment

• The inlet arm and the outlet arm vibrate with the same frequency as the overall vibration, but when there is mass flow the two vibrations are out of sync: the inlet arm is behind, the outlet arm is ahead. The two vibrations are shifted in phase with respect to each other, and the degree of phase-shift is a measure for the amount of mass that is flowing through the tubes.

Source: http://en.wikipedia.org/wiki/Mass_flow_meter

Inlet pickoff

magnetic sensor Outlet pickoff

magnetic sensor

No flow Mass flow

Shift=0 Shift ≠ 0

Inlet pickoff

magnetic sensor

Outlet pickoff

magnetic sensor

http://en.wikipedia.org/wiki/Mass_flow_meter

36





Kinetis L


SCI SPI I2C

Voltage

Regulator


RS422

MCU Clock

X1

100ksps ADC

Key Peripherals:

• Fast processing core (16x16 multiply required)

• Timer to generate excitation signals

• Fast and high-dynamic range ADC to acquire signals of the magnetic sensors

• Execution in VLPR preferred if achieving low power consumption is necessary

RTC

230V/110V

Power Supply

Timer

Signal Conditioning

Inlet pickoff

magnetic sensor

Outlet pickoff

magnetic sensor

Clock Generator

The drive coil is used with a magnet to produce the oscillation

of the Coriolis sensor flow tubes. The coil is energized to keep

the tubes vibrating at their natural frequency.

Excitation coil with

magnet

LCD Display

LCD

DRIVER

GPIO

TSI

Touch Sensing





37





• Two sensors mounted on the pipe simultaneously send and receive ultrasonic pulses.

• At zero flow, both sensors receive the transmitted ultrasonic wave at the same time, i.e. without transit time delay.

• When the fluid is in motion, the waves of ultrasonic sound do not reach the two sensors at the same time.

• This measured "transit time difference" is directly proportional to the flow velocity and therefore to flow volume.

• By using the absolute transit times both the averaged fluid velocity and the speed of sound can be calculated.

Source: http://www.efunda.com/designstandards/sensors/flowmeters/flowmeter_ustt.cfm

where X is the projected length of the path along the pipe direction

(X = L cos Ѳ)

http://www.efunda.com/designstandards/sensors/flowmeters/flowmeter_ustt.cfm

38





Kinetis L


SCI SPI I2C

Voltage

Regulator


RS422

MCU Clock

X1

SPI


Key Peripherals:

• Execution in VLPR preferred if achieving low power consumption is necessary

• LCD display and TSI

• Optional GPIO pin wakeup from stand-by mode when new measurement is available


A B

Flow

Sensor Block

Liquid

Pipe wall

230V/110V

Power Supply

Sensor Block

ASIC

RTC

Clock Generator

GPIO

INT

LCD Display

LCD

DRIVER

GPIO

TSI

Touch Sensing




39











− HMI Interface

− Timers


• Summary

40





Needs Kinetis L Solution

Cortex-M0+ CPU Lowest power M0+ core (32x32 multiply in 1 cycle) up to 48MHz.

Low Power Less than 73uA/MHz VLPR Current1

Down to 130nA @VLLS0 (POR disabled)

User Interface Up to 4x51 (8x47) segment LCD display driver operating in all low power

modes.

16-channel Touch-Sense Interface (TSI) operating in all low power modes.

Communication Up to 3 UARTS, 2 SPIs and 2 IIC.

Memory

Scalability

From 32KB to 256MB of Flash.

From 8KB to 32KB of RAM

Program longword execution time (65us)

Time Keeping RTC module with crystal compensation operating in all low power modes

(Correction range ~ ±.12ppm .. ~ ±3900ppm)

Analog Modules High Speed ADC. 12-bit DAC. HSCMP.

Timers Low-Power Timer operating in all low power modes.

1) Typ. 292uA @ 4MHz core, system clock and 1MHz bus and flash clock. MCG configured for BLPE mode. All peripheral clocks disabled. Code executing from flash.

41





Freescale

CodeWarrior

Keil (MDK) IAR (EWARM) Code Red

(RedSuite)

Atollic

(TrueSTUDIO)

Kinetis L Basic

Device Support

Yes

CW10.3

Yes

v4.60

Yes

V6.50

Yes

V5.0

Yes,

v3.3

Processor

Expert Support Fully Integrated

Stand-alone

Driver Suite

(Eclipse) w/ MDK

Eclipse Plug-in

V6.50: Stand-

alone Driver Suite

Integrated

(requires include

path setup)

Not available in

current products

MQX Task

Awareness

Yes

(Professional

Edition)

Yes Yes No No

MTB Trace Yes (Production

Release)

Yes – with CMSIS-

DAP and ULINK2

v6.50 w/ I-Jet only

(no OpenSDA

support)

Yes Coming in a 2013

release

Low-power

Mode Debug Yes Coming Soon

Available only w/

IAR I-Jet Debug

Interface

No; coming in a

future release

Not available in

current products

Free Version

Limitations

Special Edition

64KB Debug

Lite

32KB

KickStart

16KB

Kinetis Edition

64KB

Lite

8KB

Download Size ~1150MB ~500MB ~800MB ~300MB ~500MB

http://www.keil.com/

TM

Documents

Freescale PowerPoint Templatecache.freescale.com/files/training/doc/dwf/DWF13_APF_SEG_T0304.pdf · −RF communications for automatic meter reading Flow Sensor MCU Kinetis L LCD Serial