9S08QE8 Badge_Board_..
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1. FUTURE Ges EE 1 ELECTRONICS MC9S08QE8 Low Power Badge Board User Manual ADVANCED ENGINEERING Think First FUTURE ELECTRONICS Document History Revision Author Description Date 1 0 H Letourneau Document creation Feb 11 2008 1 1 M Leger Documentation March 30 2008 Table of Contents Document HiStORYsras morirai cube ian Daas katreeel ie akties talib whiter in 2 9S08QE8 Badge Board User Manual 4 r SFOFCWOMG beet eet jmady andl ease ea aaea tach en Aenean te 4 SEN Regele Leg LEET 4 2 1 RUNMING the dOMO E 5 3 Kit CONTENTS ee Ee hae avec dae nade 6 A iHardware Setup 0ERelN ESA ee Oe ek deed aera ee eee ed 6 4 1 Configuration Jumpers cccecececeeeeeeeeeeeeeeeeeeeeecaaeeesaaeeeeeeeseaeeeseaeseeaeeseeeeestaeeneaeeee 6 4 2 OSBDM Control OGBDM cn 7 4 3 Capacitor leakage jumper Di 7 4 4 OSBDM device selector DGDM EN 8 4 5 Processor Inputs Outputs P 8 4 6 Power measurement selection P8 P9 P O 8 4 7 Peripheral signals selection DV EN 9 4 8 Peripheral signals Selection Di 9 Sa COMMGUPALIOM stint here geesde AE EE A E AE AE 10 5 1 ee 10 Siil Battery oparami ieten g ie gedeelt EEES Eaa ey 10 52 USB Operation ET 10 13 External Supply Operation sisane aine anea aaiue aa aada autaa aaae eaaa ions 10 Blo Sd DLO ET E E A sted detest lash N 10 5 2 S2 Peripheral POW i aara aeaa a aaa aana e erch Eich a ara aeaaea aaae decades ahs 11 52. 3 IERT 11 bat Force BDM MOE e aa ee sienna ees Ta ra aaan raaa aaae a aikana aaa 11 AEO eL Ee el ESA EEE E E A E A A 12 6 1 Current measurement circuit refer to schematics cceeeeeeeeeeeeeeeeeteeeeeeeeaees 12 6 1 1 Taking a current measurement 12 6 1 2 Measurement accuracy ceecceceeceeeeeceeeeeceeeeeceaeeeeaeeeeeeeesaaeseeeeeseeeeesaeeetaeeeeneeeed 12 6 1 3 Measurement selechon cc ceeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeeeeseaeeeeeseneeeeeteeeaeeeeeeaeees 12 6 1 4 Calibration Procedure sssesssessseesseesseessseennsrtntetnnstnntnnnttnntnntnntnnstnnnennsennnnn nnana 13 6 2 External crystal operaton is sssesjernieti iceren ennek aeree E EE CERAK EEEE EEESE EEKE 13 6 3 Capacitive Touch keypad 0 ccccceeeceeeeceeceneeeeaeeeeseeseeeeeseaaeseeaeeseeeeeseaeeesiaeeneneeeeaes 14 7 Prototype EE 15 8 Installing Windows drivers for the MC9SO8QE8 badge board eee ceeeeeeeee eee eeeeees 16 9 Programming Application and Control Processor ce cece ce eeeee eee eet eeeeeee tease aaaaetees 17 9 1 Application Processor programming sesssseessrrssssrresssrnesrnnnesrnnnesnnnnnnnnnnnnennnnennennne 17 9 2 Control processor programming cccceceeceeeeeeceeneeceeeeeseaeeeeaaeeseeeeeseaeeessaeeseeeeeaes 17 9 3 PrOGrammMInG PrOCCUUIC TTT 17 9 4 OSBDM Programming 908JB16 s ssnsssassssnnesnsenernsnnsnnrnssrntnnstnnnnnsnnnnnsrnrnnsrnnn 20 MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Futur
3. 9 10 No connect OFF Pin 11 12 Temp Sensor Output OFF Pin 13 14 SCI port RX Data OFF Pin 15 16 SCI port TX Data OFF Table 9 P11 Jumper Setting 5 Configuration 5 1 Power source The Power Source Select header P7 is used to select the source used to power the board Only one source should be selected at a time with a single jumper on P7 Pin 1 2 USB ON Pin 3 4 EXTERNAL OFF Pin 5 6 CPU OFF Table 10 P7 Power source select 5 1 1 Battery operation Two AA batteries can be used to power the board This 3V source is increased to 5 V through a boost regulator circuit To power cycle a board simply turn the switch S1 to the off position for at least 4 to 5 seconds 5 1 2 USB operation 5V USB power can be used to power the board To power cycle a board powered from USB the cable must be physically disconnected and reconnected 5 1 3 External Supply operation An external power source can supply power to the board Any voltages from 8 to 15V DC or 6 to 12 V AC is acceptable A bridge rectifier is used to enable AC voltages and DC voltages with the center post of the connector at any polarity 5 1 4 S1 On Off Switch S1 controls the battery power To power cycle the board when a source other than the batteries are used disconnect the source wait for a few seconds and reconnect MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 10 of 20 5 2 S2 Peripheral Power On bo
4. Network adapters fi PCMCIA adapters 9 Ports COM amp LPT MB Processors EI Sound video and game controllers System devices Universal Serial Bus controllers Figure 11 Device detected as Open Source BDM MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 16 of 20 9 Programming Application and Control Processor 9 1 Application Processor programming Normal operation will have the jumpers on BDM_EN connector set to program the Application Processor jumpers over Target portion Please note that programming and I2C pullup resistors are powered from the measured supply so any pullup leakage if enabled via the jumpers will be accounted for in the measurement If more accurate results are needed jumpers on BDM_EN should be removed and internal pull ups enabled as to not leave these inputs floating pin PTA4 ACMP10 BKGD MS and PTA5 IRQ TCLK RESET 9 2 Control processor programming Programming of the control processor may be needed for firmware upgrade It is good practice and highly recommended to always run the latest firmware Please consult the web link provided in the quick start guide to gain access to the latest information and upgrades Setting the jumpers on BDM_EN to program the control processor requires the power supply be set to 3 3V Jumpers must also be placed back to their original position debugger closed and the board gone through a power u
5. True Time Simulator amp Real Time Debugger C Program Files Freescale CodeWarrior for HCO8 V5 1 Co File View Run HCS08 Open Source BOM Component Memory Window Help olsa jajaj eist gt 2 st 2 a 4 O E O Assembly D Source LOADER WARNING The debugger is going to mass erase the non volatile memory eeprom and flash of the current device then program the application D Procedure e S REH A Ro not display this message anymore for this project Rpatai Auto Symb Global i 0080 DD DE 8B EB BA 66 2E 1E D pp NA NI CI CR 4A AN 44 Ai Fa Data 2 4 ol x T Command Automatic triggers breakpoints watchpoints and trace possible Figure 14 Mass erase warning message click ok to proceed 10 To execute the programmed application simply click Start Continue in the Run menu of the debugger or green arrow or press F5 MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 19 of 20 9 4 OSBDM Programming 908JB16 From time to time it may be required to upgrade to a new version of the debug interface processor Should this need arise upgrading the BDM controllers firmware is done via USB with the help of a software utility called USBICP available on the install CD or the Freescale website under the 908JB16 8 bit processor section To execute this please refer to the OSBDM_cnirl jumper setting of table 1 and connect the USB cable i
6. ace mount technology Each pad is connected to a via for connection with a fine jumper wire Various footprints were included for convenience Power supplied to this area can be either part of the power calculation or not On the upper connector area pins are denoted as follows O 2 3 3VDC measured or not measured as set per P10 0 VDC ground connections ZN 5 VDC boost regulated supply Ke Ty at Te ELS 4 Tonal cc O d g O o O 0 d g d WL ent Figure 10 Prototype area MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 15 of 20 8 Installing Windows drivers for the MC9SO8QE8 badge board 1 Plug the device into any USB port 2 Anew USB device should be detected 3 Install the Windows driver found in the installation or on the CD under QE8_CD OSBDM OpenSourceBDM Release_Files OpenSourceBDM_S08_W inDriver 4 The device should now be detected as Open Source BDM LibUSB Win32 into the LibUSB Win32 Devices section in your device manager window To open the device manager window open the system link in the control panel and select device manager in the hardware tab Device Manager File Action View Help SERGE EE a Batteries Computer Disk drives Display adapters 2 DVD CD ROM drives gy Human Interface Devices E IDE ATAJATAPI controllers 39 IEEE 1394 Bus host controllers H eyb s ds Gr LibUSB Win32 Devices E
7. ard peripherals are powered separately through dip switch S2 This scheme enables better control over which peripherals are powered consuming current e LD Peripheral ON Power mmm 0 E Serial DN E SPI Ram C i Temp EB TT ma Optical C15 C14 mg CIR Res Var Sam C SPI Flash A DAE M Touch ulmim Cc Bilin a Figure 6 S2 Power distribution 5 3 BDM Interface The BDM interface is based on the Open Source BDM OSBDM When the USB interface is enumerated in Windows and the BDM is functioning properly the USB led will be on A cable can be installed on the BDM connector to provide debugging capabilities to other boards and or Freescale processors An external BDM interface such as the P amp E Micro USBMULTILINK can also be used as the debugging interface In this case the on boards OSBDM should not be powered 5 3 1 Force BDM Mode During low power application development it is possible to leave the application processor in a sleep state where all the peripherals BDM included are not functioning To force BDM activity the processor must wake up with the BDM pin connected to ground This is easily accomplished by inserting a jumper between pins 1 and 2 shown below on the BDM connector when powering up the board The jumper must then be removed to resume normal operation Figure 7 Force BDM connection MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 11 of 20 6 Operati
8. asurement RY Circuit Figure 8 Board power distribution 6 1 4 Calibration Procedure The current measurement circuit will require calibration every time the control processor is reflashed since configuration parameters stored in a portion of the flash Sector OxFCOO will be erased during the mass erase process A calibration procedure may also be forced when powering the board while holding down the CALIBRATE button This will ensure the board is operational with different environmental conditions like temperature or drift due to component aging To properly calibrate the measurement circuit jumpers P8 P9 and P10 are required to be in the UNMEASURED position please refer to Table 5 6 and 7 The calibration process outlined below requires the user to follow the steps in a specific manner Failure to do so may provide slight offset and erroneous results When the calibration is complete the data will automatically be stored in flash and normal operation will resume The procedure will calibrate various setpoints at different voltages and loads The display will provide specific directives as to when to press buttons and change the voltage Place jumpers on P8 P9 and P10 to the unmeasured position Set voltage to maximum Press and hold the calibrate button until the release message 4 seconds Wait for calibration up to 10 seconds depending on board Set voltage to minimum Press and hold the calibrate button until the release messa
9. being measured Both power supplies have the capability to track each other so that there are no interfacing issues between each section MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 8 of 20 Measurement Select Jumper setting for current NOT being measured Jumper setting for current being measured Figure 5 Board power distribution Pin 1 2 Measured supply ON Pin 2 3 Direct supply OFF Table 5 P8 Jumper Setting Pin 1 2 Measured supply OFF Pin 2 3 Direct supply ON Table 6 P9 Jumper Setting Pin 1 2 Measured supply OFF Pin 2 3 Direct supply ON Table 7 P10 Jumper Setting 4 7 Peripheral signals selection RV_EN Pin 1 2 Potentiometer on KBIPO OFF Pin 3 4 Photo sensor on KBIP1 OFF Table 8 RV_EN Jumper Setting 4 8 Peripheral signals selection P11 For proper 12C bus operation both pull ups on SDA and SCL must be enabled by adding jumpers on DC PULL EN Pull ups can be left connected if needed without any effect on the general purpose I Os SCI port connections are made to their respective processor pins Temperature sensor U24 is assigned an to analog channel MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 9 of 20 Pin 1 2 Pull up i2C SDA OFF Pin 3 4 Pull up 12C SCL OFF Pin 5 6 SCI port RTS OFF Pin 7 8 SCI port CTS OFF Pin
10. ceeeeeceaeeeeaaeeseneeceaeeeeaaeseeaaesnaeeeseaeeeeaaeenenees 8 Fable 4 P6 JUMmper Setting sic iiccac ates cee ta Waste eee eee ede EE 8 Fable 5s P8 Jumper Setting EE 9 FTabl 6 P9 Jumper Settings enient enie aaiae eie aa dee ee gehen 9 Table 7P 10JumMper Setting iiiaae tha aaee TE 9 Table 8 RV_EN Jumper Geng 9 Table 9 P11 Jumper Setting A 10 Table 10 P7 Power source seet 10 MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 3 of 20 9SO8QE8 Badge Board User Manual 1 Foreword This document specifies the hardware implementation of the 9SO8QE8 Badge Board The purpose of this development platform is to facilitate but is not restricted to the development of low power applications where power consumption is an issue While most lab DMM only provide steady state current measurement our on board control circuitry computes the integral of the dynamic current levels in response to external stimuli or internal processor resources typical of power saving applications The user may then efficiently optimize the code to lower the overall power consumed Average current Long term energy average over user defined time period Power PRESS PRESS START START Figure 1 Typical current consumption profile 2 Introduction The MC9S08QE8 Badge board is an evaluation platform featuring e Long term average current consumption monitoring circuit 100nA to 100mA Able to supply monitored or unmonitored
11. ctronics 5 of 20 3 Kit Contents Each kit is packaged with the following AN 9S08QE8 Badge Board CodeWarrior for HC S 08 6 1 CD ROM CD including Labs sample code and various documentation USB cable A B Quick start guide Please note that the power supply and AA batteries are not included in this particular kit The board can be powered using the included USB cable 4 Hardware Setup This development board is equipped with 3 microcontrollers The MC9S08QE8 for code development This is the device under test U1 located in the center of the board A second MC9S08QE8 is dedicated to monitor the power consumption of the device under test A MC908JB16 used for BDM debug interface When powering the board the 5V_OK LED should turn on and the LCD should indicate an integration time of Os a current of 000 0UA and the main supply voltage which can be adjusted by R43 potentiometer 4 1 Configuration jumpers Figure 4 shows the factory default jumper settings representing the following configuration Board power from USB BDM in default operation CPU power measurement BDM connected to the Device Under Test LEDs and Switches connected to the I Os External crystal connections MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 6 of 20 u20 A mu 1 em si SES 2 E Ss Es Sp C ien aes e Ger CO ia viei Sr Wb ci pp mmj a 6 KI S Ci
12. e Electronics 2 of 20 Table of Figures Figure 1 Typical current CONSUMPTION profile eee cee eect ee eteeeeeeeee cee eeeaaeeteaeeseaeeeeaeeeeaeeeeaes 4 Figure 2 MC9OSO8QE8 Badge Board 5 Figure 3 Board Demo switches cceecceceeeeeeneeeeeeeeeeaeeeeaaeeeeaeeseeeeceaeeesaaeedeaeeseneeescaeeesaeessaes 5 Figure 4 Default Jumper Settings ceeecccecceeeseeeeesceceeeeeceaeeeeaaeeeeeeeceaeeeeaaesseaeeseeeesaeesseneeeeaes 7 Figure 5 Board power distribuon enei iea Er AEE aE RE ERSEN ANARE R a 9 Figure 6 S2 Power distribution cresien iieiea ie a ei e ad aas iaeiae aee e E ea RE 11 Figure 7 Force BDM GOmectian ereot e i a a 11 Figure 8 Board power dreibupon irp eaae paaa AATE EAEE AKINE EES 13 Figure 9 Touch sensing Interface 14 Figure 10 Prototype Arei EE 15 Figure 11 Device detected as Open Source BDM ssssssssssssssissrrssrissrissrissrresrinsrresrrnnsre 16 Figure 12 Selecting OpenZourcebBDM Large 18 Figure 13 Warning message Click Ok tO continue 19 Figure 14 Mass erase warning message click Ok to proceed sssseesseeseessesereeerresrreenen 19 Figure 15 ICP programming interface ccccseeeeeceeeee cece eeeeaee eects caaeeeeaaeseeeeeseeeeesaeeteeeeeee 20 Index of Tables Table 1 OSBDM_cnitrl Jumper Setting 2 0 2 eeceeececeeeee cece eeeaeeeeeeeceeeeesaaeeesaaeseeeeeseaeeesaeeesenees 7 Fable 2 P1 Jumper Sewing WEE 8 Table 3 BDM EN Jumper Setting ccccecccceeeceesce
13. ee st San Io Peripheral s2 on Power ene serial CALIBRATE Saz Control i RESET starr d n eam est Ram ZE ISeeeeeeel e ore n E SE n i DN a U Wid eel vd e elas mE RLS C15 C14 C Ml Res Var p 1 Gs u24 is S Se Ga mms Flash CH OO dE S Sud a Wi COU Touch I C x N e z s Clem DOUT ea III 5 a cl o EpL lel sale ey Ss HHE EEE Se ie ike r mapa E co OG EG jos ei ER mecesesg TRS ewes ee ES e E Da Ea ml Figure 4Error No sequence specified Default Jumper Settings 4 2 OSBDM Control OSBDM_cntrl The OSBDM_cnirl jumper series refer to Table 1 are used for normal operation or reprogramming the OSBDM controller The reprogramming of the JB16 should only be done when absolutely necessary and one must use extreme precaution The Freescale Forum should be consulted for information on OSBDM upgrades Pin 1 2 ON OFF ON Pin 3 4 OFF ON OFF Pin 5 6 OFF ON OFF Pin 7 8 OFF ON OFF Table 1 OSBDM_cnitrl Jumper Setting The USB green led indicates the USB communication activity See the LED section for more details Please note that the entire BDM interface is powered through the 5V supply from the USB port The whole board can be powered from USB as well as other sources 4 3 Capacitor leakage jumper P1 At very low power operation very small current leakage from components such as electrolytic capacitors can become significan
14. ge 4 seconds Wait for calibration up to 10 seconds depending on board Results will be written to flash automatically 6 2 External crystal operation A 4MHz crystal was used as an external clock source With the current QE8 clock divider settings the lowest bus frequency configuration is 250 kHz Even if this exceeds the device s specification of 125 kHz in Low Power Run Mode in FBE mode the device can still operate without problems MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 13 of 20 If the user wishes to do 32 kHz low power mode tests the crystal can be interchanged with a low cost 32 768 kHz watch crystal Depending on the crystal specifications capacitors C4 C5 resistor R4 and R6 should be removed or adjusted 6 3 Capacitive Touch keypad The board is equipped with a set of 4 touch pads to demonstrate Freescale s Proximity Sensing Solutions Software Care must be taken to make sure the pullup resistors are powered via S2 switch 7 Shared functions on P11 IIC and serial interface must be freed by removing any jumpers PERI_V7 Touch Sensor B Figure 9 Touch sensing Interface MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 14 of 20 7 Prototype Area The onboard prototype area provides a convenient way to add simple user defined circuits such as analog amplifiers comparators etc and logic functions and various discretes in surf
15. ge_test h 0 0 a E Libs K Ee 8 E ansiis lib 12410 2018 m EA MC9S080G8 C 0 85 e xi EE Project Settings 132 be of HE3 Startup Code 132 Be xf D StartO8 c 132 bs xf HE Linker Files D o a B bummer bbl n a na zj E Project prm n a na x D 5080G8_Badge_test map n a na xx Figure 12 Selecting OpenSourceBDM target 8 Once the debugger is started a warning window should pop up telling that the current application execution will stop click ok to continue see Figure 12 MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 18 of 20 lt True Dme Simulator amp Real Time Debugger C Program Files Freescale CodeWarrior for HCO8B V5 1 Co View Run HCSOB OpenSource BDM Component Memor Window Help H pe giwl alle stell sf S Source C Assembly Warning A Loading a new application will stop the execution of the current one D Procedure H Data 1 O X Mamoy Symb Global 0080 DD DE 8B EB BA 66 2E 1E Anka NA NI CI CR AA AN 44 41 O X Command Symb Local For Help press F1 Automatic triggers breakpoints watchpoints and trace possible Figure 13 Warning message click ok to continue 9 Another warning message will appear telling that the EEPROM and FLASH will be both mass erased and the application will then be programmed click ok to continue see Figure 13 The EEPROM and FLASH is then erased and reprogrammed with the new application
16. n the connector When starting the USBICP application you will be prompted to select the device specific file which is located in the same directory as the USBICP program and is named jb16icp_me imp and click OK Once loaded the interface will appear as shown below After selecting the new firmware update file should be S19 extension and format click the Erase FLASH button then click the program Once the flash process is completed close the application disconnect the USB and place the OSBDM_crirl jumpers in their original positions Eq CP Device Manager Select MCU C Documents and Settin D PS S freesca le 0002 Program Verify DAD CheckSum Erase FLASH F9FF FFDO FFFF LC Besse d Help Action Result Figure 15 ICP programming interface MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 20 of 20
17. on 6 1 Current measurement circuit refer to schematics The power measurement circuit is composed of a current sense resistor R34 a differential voltage to current converter U15 R36 37 and Q1 and a low leakage film capacitor C32 A current proportional to the voltage drop in the current sense resistor is sourced into C32 and generates a linear ramp At low integrating ramp speed the capacitor voltage is read by an A D converter and ramp rate is converted to current information At higher power the integrating capacitor s reset signal is used as a frequency generator to evaluate the current The current readout is the average current over the time period indicated by the time counter on the LCD display All the I Os of the application processor were made to be freed from any default connections with a few exceptions as to not include any I O leakage from peripherals in the power consumption calculation 6 1 1 Taking a current measurement Pressing the START button will begin an average current measurement The time count will reset and increase every second The power reading will appear and may fluctuate at the beginning depending on how dynamic the application is Very low current will require a longer average time to provide stable results To stop the process press START again Also please note that the debugger must be closed and the USB cable removed to make accurate low power measurements If there is still communicati
18. on with the application processor and the debugger low power will not be achieved as these modules are still enabled inside the device 6 1 2 Measurement accuracy As with any averaging process the longer the average time the more precise the results will be In a dynamic application where the current levels change rapidly the instant when the user press the START button may differ from one test to the other therefore including or excluding current peaks from the average and providing different results This is not related to the precision or accuracy of the measurement circuit itself which is usually within a few percent Please note changing the voltage setting during an average calculation will not provide _ correct results 6 1 3 Measurement selection The MC9S08QE8 badge board has two power supplies one is direct to the load and the second is monitored by the current measurement circuit By selecting the proper jumper settings on P8 P9 and P10 one can measure the power consumption of the application processor its peripherals and from the prototype area in any combination Please refer to section 4 6 for more information on proper jumper settings MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 12 of 20 2 0V to 3 3V QE8 MPU DUT Regulator 1 Power 7 Source z easuremen SMD Select Manual adjust Select SE Regulator 2 E Area circuit Peripheral Batt Power Me
19. p sequence before the new code is in effect If the board is powered from USB disconnecting and reconnecting the USB cable will suffice Real time debugging of the control processor s application will provide erroneous measurement results as the default TRIM value for the on chip oscillator is set to default at 128 therefore changing the time base for the calculations 9 3 Programming Procedure 1 Select the proper device with the jumper setting indicated in Table 3 2 Launch CodeWarrior for HCO8 V6 1 CodeWarrior IDE 3 Inthe IDE s initial startup menu click Start Using CodeWarrior 4 Click File menu and then click Open 5 Find and select the project to open mcp and then click Open 6 Make sure that your MC9SO8QE8 badge board is connected to your USB port 7 Select the HCS08 Open Source BDM target in CodeWarrior s IDE and then click the Debug icon Error Reference source not found The design will then compile and the debugger will start MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 17 of 20 Freescale CodeWarrior File Edit View Search Project Processor Expert Device Initialization Bae Eo RBA Sh rjxj 508QG8_Badge_Test mcp Ech Fe H Dk HCSO8 Open Source BDM Files Link Order Targets EH Sources a ff 9SO8QG8_Badae_test c 192 10 e x a Includes 0 DU af B MC9S080G8 h 0 DU af BN derivative h 0 Us D 9S080G8_Bad
20. power to different sections of the board LCD display to display results Integration time up to 9999 seconds almost 3 hours Variable supply 2 0 to 3 3 V atup to 100mA Open Source BDM debug interface SMD Prototype Area patterns with vias Capacitive touch sensing 4 electrodes keypad Power related application software based on labs and exercises MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 4 of 20 LOW POWER EVALUATION PLATFORM treescale Figure 2 MC9SO8QE8 Badge Board 2 1 Running the demo The board s main processor already has a demo application programmed Essentially it provides 4 discrete modes of operation controlled by the 4 on board switches SW1 4 e Pressing SW1 will place the processor in full speed mode running at 10 MHz avg 3 2mA e Pressing SW2 will place the processor in LPRUN mode running at 250 KHz avg 280uA e Pressing SW3 will place the processor in STOP3 mode with RTC running with LPO avg 4 5uA e Pressing SW4 will place the processor in STOP2 mode with RTC disabled lowest power mode avg 0 3uA When a button is pressed the corresponding LED will light up for approximately 1 sec To start an average current calculation press the START button Pressing START again will stop the averaging process and hold the results on the screen Figure 3 Board Demo switches MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Ele
21. t Jumper P1 can used to connect an additional tantalum decoupling capacitor across the QE8 supply and see the effect on overall power consumption due to leakage MC9S08QE8 Low Power Badge Board User Manual Rev 1 0 Future Electronics 7 of 20 Pin 1 2 ON OFF ON Table 2 P1 Jumper Setting 4 4 OSBDM device selector BDM_EN Both QE8 devices can be programmed Two different jumper settings on BDM_EN can be used to perform firmware programming on the D U T processor U1 or the control processor U6 Table 3 BDM_EN Jumper Setting 4 5 Processor Inputs Outputs P6 Push button SW1 to SW4 and LED1 to LED4 can be connected the general purpose I Os through connector P6 Pin 1 2 PTAO SW1 ON Pin 3 4 PTA1 SW2 ON Pin 5 6 PTA2 SW3 ON Pin 7 8 PTA3 SW4 ON Pin 9 10 PTCO LED1 ON Pin 11 12 PTC1 LED2 ON Pin 13 14 PTC2 LED3 ON Pin 15 16 PTC3 LED4 ON Table 4 P6 Jumper Setting 4 6 Power measurement selection P8 P9 P10 The on board power supply can provide current to the 3 different sections CPU Peripherals and SMD prototype area as being part of the measurement calculation or not This allows for complete flexibility over which devices have their current being measured Placing a jumper across the measurement supply will include whatever current being consumed in this area to be included in the calculation while the unmeasured selection still provide the same voltage but no current is
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