IND-P21336 Flexis MM S08MM128 Lab 1_ver3_mb.indd
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1. Display Raw Data checkbox is selected the graph s data will be shown in the column on the right side It may be useful to copy and paste the data to the spreadsheet for later analysis 37 Alternatively you can also display the EKG signal without using the DSC by following these steps e Open the Ecg h file from the following path d work LAB1 MEDEKGSW SW for MM devices app ekg Med EKG e Inthe Ecg h file comment out define ECG_DSC to define ECG_DSC e Reprogram the SO8MM128 repeat step 13 to 17 e Reconnect the mini USB cable to TWR SER USB port e Repeat steps 29 to 36 You will notice the EKG amplitude will be much smaller This is because you are no longer reading the results amplified by the DSC You will also notice the red LED mentioned under the Get to Know the MED EKG section in Figure 1 will continue to blink Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document Freescale Semiconductor reserves the right to make changes without further notice to any products herein Freescale Semiconductor makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does Freescale Semiconductor assume2. Yes thes time oriy Yes now and hme connect a device Click Next to continue Ce Cera 10 At the next screen select Install the software automatically and click Next Windows will find the driver already installed with CodeWarrior Found New Hardware Wizard Thes wazad helps you nstal software hor USB Device If your hardware came with an installation CD lt gt ot thoppy disk insert it now What do you wart the vazad to do Install the soltware automate aly Recommended instal trom a kst specie locaton Advanced Cheb Nert to contre etot ee Ccm NOTE If Windows cannot locate the driver automatically please specify the following path C Program Files Freescale CodeWarrior for Microcontrollers V6 3 Drivers Osbdm jm60 11 On the final screen click Finish The OSBDM driver is now loaded ound New Hardware Wizard Completing the Found New Hardware Wizard The wazad has hreshed wetalhing the soltware for g Open Source BOM JMBD LOUSB AW 22 Chch Frush to chose the wizard Downloading the Software to S08MM128 12 Extract the LAB1 zip file to your working directory d work 13 Open CodeWarrior for Microcontrollers v6 3 Use the Windows Start Menu gt All Programs gt Freescale CodeWarrior gt CodeWarrior Development Studio for Microcontrollers V6 3 gt CodeWarrior IDE NOTE It is important to open the correct CodeWarrior product and version Multiple C
3. very sensitive Very little movement can yield lot of noise The ideal way is to connect a three lead cable two electrodes and one ground via J12 header and use external electrodes Freescale does not provide this lead due to regulations in different countries therefore the user must purchase it separately This lab was tested with Welch Allyn ECG Lead Wires for Atlas Monitor three lead AHA 34 If the signal varies try different finger positions but wait for stabilization time usually 10 seconds Experiment with this step until the GUI is drawing a similar EKG signal to the image at left 35 If the graphed signal amplitude is too small or too big press and release SW4 to reduce the gain or SW2 to increase the gain from the TWR SO8MM128 module SW4 will have no effect once OPAMP2 reaches the smallest gain of 2 SW2 will have no effect once OPAMP2 reaches the highest gain of 17 The signal amplitude in peaks must be between 8000 and 20000 units shown in the vertical axis for correct heart rate calculation Increase the gain if your EKG signal is not within that range NOTE On the TWR SO8MM128 LED2 silk screened label D10 will blink as you press SW2 Once you reach the OPAMP2 maximum gain LED2 becomes solid LED1 silk screened label D9 behaves similarly as you press SW4 to reduce the OPAMP2 gain The heart rate may not be accurate when there is noise Lab Tutorial for TWR SO8MM128 KIT 7 TOWERSYSTEM 36 If the
4. Lab Tutorial for TWR SO8MM128 KIT 7 TOWERSYSTEM 4 Energy Pp gt Efficient Solutions P 4 optimized for low power Akt ak X MC9SO8MM128 Electrocardiogram EKG os i with Freescale USB stack 7 freescale semiconductor Po Introduction This lab is a step by step guide to run the EKG demo The EKG demo uses the SO8MM128 on chip analog modules TRIAMPs OPAMPs DAC and ADC along with noise filters to condition the EKG signal The EKG signal condition includes the following stages 1 Instrumentation amplification using on chip TRIAMP1 TRIAMP2 and OPAMP 1 2 Band pass filtering 3 Amplification using on chip OPAMP2 programmable gain 4 Notch filtering 5 Amplification using an off chip OPAMP 6 Automatic baseline compensation using on chip 12 bit DAC 7 Digital filtering with the pre programmed MC56F8006 Freescale DSC After digital filtering tuning the end results are sent from DSC via C protocol back to SO8MM128 The SO8MM128 then uses the Freescale USB stack to forward the results to the computer which are then displayed on the Freescale MED EKG graphical user interface GUI NOTE The official marking for SO8MM devices is MC9SO8MM In this document the MC9 prefix is omitted for simple referencing NOTE Please refer to the MED EKG schematic for circuit detail The schematic is included in the DVD Stages 6 and 7 may not be necessary in your own EKG application They a
5. any liability arising out of the application or use of any product or circuit and specifically disclaims any liability including without limitation consequential or incidental damages Typical parameters that may be provided in Freescale Semiconductor data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by customer s technical experts Freescale Semiconductor does not convey any license under its patent rights nor the rights of others Freescale Semiconductor products are not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application Buyer shall indemnify Freescale Semiconductor and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any claim of personal injury or death associated with such unintended or unauthorized use even if such claims alleges that Freescale Semiconductor wa
6. ation CD gt ot tloppy disk insert it now What do you want the wazard to do Install trom a kst o spectic locaton Advanced ch Neat to Conhirnx 26 In the next window click Browse and select the following folder c Program Files Freescale MED EKG Driver Then click Next Found New Hardware Wizard Please choose your search and installation options Seach tor the best diver in these locations Use the check boxes below to imit or expand the default paths and removable search which includes local meda The best driver found will be installed C Search removable media Hloppy CD ROM V Inchade thas location in the search C Program Files Freescake MED KG Diver 1 Bowe O Dent search I Choose this option to select the device dnver trom a kst Windows does not guarantee that RAEI E choose the diver to install D Windows Security X Don t install this driver software You should check your manufacturer s website for updated driver software for your device gt Install this driver software anyway Only install driver software obtained from your manufacturer s website or disc Unsigned software from other sources may harm your computer or steal information v See details 28 When the installation is complete click Finish Lab Tutorial for TWR SO8MM128 KIT 7 TOWERSYSTEM Running the MED EKG DEMO 31 Select the COM port number found in Step 29 Then cl
7. ick the Start button You 29 Once the CDC driver installation is will see the GUI start to display a random complete find the exact COM port that waveform Windows assigned to the CDC device in device manager To access Device Manager right click the My Computer icon from your Windows desktop then select Manage Find the COM number as indicated in the figure below O Computer Manageme bhi any 3 Computer Managemert Local A 4 Personal identification devices jE System Tools y Ports COM amp LPT PO Local Users and Groups jal Com Port CO and connect the USB to TWR SER before opening the Performance Logs and A t E Communications Port COME 7 oo NOTE Program S08MM128 with LAB1 source code t B secure Digtal host controllers GUI Otherwise close and reopen the GUI Ne Smart card readers 32 Remove rings from your fingers before NOTE COM10 is just an example Each computer touching the electrodes as shown in the may assign a different Virtual Com Port number images below 30 Open the Graphical User Interface from Start gt All Programs gt Freescale MED EKG 33 Wait for signal stabilization about 10 seconds avoiding movements and with relaxed respiration The heart rate is shown in the red highlighted box below The EKG signal should be similar to the one shown below NOTE The MED EKG connector to the TWR S08MM128 is not very secure and the electrode is
8. installation It is located in the folder d work LAB1 MEDEKGSW MED_EKG_GUI exe 20 In the installation popup windows leave the default settings and keep clicking the Next button to start the installation 21 During installation the window below will pop up Click OK to continue RegSvr32 LL OiRegsterserver in Strip OCX succeeded r 7 22 When installation is complete click the Finish button Installing the Virtual Com Port Driver 23 Once the MED EKG GUI is installed reconnect the mini USB cable to the TWR SER USB port The Found New Hardware Wizard will start to install the virtual com USB CDC driver for the programmed SO8MM128 24 At the Found New Hardware Wizard screen select No not at this time and click Next Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows vall search for cuert and updated software by looking on your comnpaser on the hardware metallabon CD of on the Windows Update Web ste vaih your pemesson Read ov pevacy pobcy Can Windows connect to Windows Update to search tor coltweare 27 f you see the following dialog box click Install this driver software anyway 25 When asked What do you want the wizard to do click Install from a list or specific location Found New Hardware Wizard Thus wazad helps you metal software tor Vetual Com Pod Uf your hardware came with an install
9. odeWarrior programs can be installed on the same computer 14 In the CodeWarrior menu select File gt Open Then browse to the following path and file d work LAB1 MEDEKGSW SW for MM devices ECG for SO8MM Ecg for SO8MM mcp 15 Ensure that the selected target is HCS08 FSL Open Source BDM Click the Debug button as shown below Ecg for SO8MM_ mcp gt HCS08 FSL Open Source BOM D Y B Files Link Order Targets NOTE You may encounter compiler warnings Please ignore them 16 If the following warning appears click OK A Loading a new application will stop the execution of the current one Loox J cma 17 When the device has been programmed close the window and disconnect both mini USB cables from TWR S08MM128 and TWR SER boards Lab Tutorial for TWR SO8MM128 KIT fF sTOWER SYSTEM Installing the MED EKG GUI 18 Microsoft NET Framework 2 0 Support up to Windows XP or 3 5 Support up to Windows 7 is required to run the MED EKG GUI Please check if it is installed on your computer by going to the Add or Remove Programs feature from the Windows Control Panel If not visit microsoft com downloads Search for NET Framework and download the corresponding version NOTE Net 4 0 does not support the MED EKG GUI If you have NET 4 0 installed you will still need to install NET 2 0 or 3 5 19 Double click on file MED_EKG_GUI exe to start the GUI
10. re included in the MED EKG to allow you to use off chip devices to help prototyping Required materials e TWR S08MM128 KIT Quick Start Guide e Tower System Built according to TWR SO08MM128 KIT Quick Start Guide e MED EKG module Two mini USB cables One for TWR SER and one for TWR SO08MM128 e LAB1 zip Located under the Software tab in the Labs section in the DVD Follow the lab guide for installation e Computer installed with o CodeWarrior for Microcontrollers v6 3 o Latest SO8MM128 service pack o Freescale MED EKG GUI installation file MED_EKG_GUI exe included in LAB1 zip o Microsoft NET Framework 2 0 or 3 5 required to run MED EKG GUI NOTE This lab was tested with Windows XP Vista and Windows 7 Lab Tutorial for TWR SO8MM128 KIT YY TOWER SYSTEM Get to Know the MED EKG Ensure J2 jumper is Connections to the installed as indicated Wi ea S08MM128 analog modules and power This green LED will source from the Tower illuminate to indicate System The power that the MED EKG is switch is controlled powered by the SO8MM128 pin PTE7 To turn on the MED EKG module in your software set the PTE7 pin to low output active low To turn the module off set the PTE7 to high output This has already been done in the demo code of this lab If this red LED continues to blink once Start is pressed from the MED EKG GUI the GUI is displaying data without the DSC A
11. s negligent regarding the design or manufacture of the part RoHS compliant and or Pb free versions of Freescale products have the functionality and electrical characteristics as their non RoHS complaint and or non Pb free counterparts For further information visit freescale com or contact your Freescale sales representative For information on Freescale s Environmental Products program visit freescale com epp To learn more about the TWR SO8MM128 KIT and other Freescale medical products please visit freescale com sO8mm freescale com medical and freescale com tower Freescale the Freescale logo and CodeWarrior are trademarks P P of Freescale Semiconductor Inc Reg U S Pat amp Tm All other Op product or service names are the property of their respective e A owners 2010 Freescale Semiconductor Inc OT fre escale Doc Number S08MMMELAB1 REV 0 e Agile Number 926 78433 Rev A semiconductor
12. solid red LED indicates the GUI is displaying the EKG with DSC amplification srrereit eeeetee eeeeeeee RTT Right Electrodes Place right hand fingers here for EKG reading See lab guide below Left Electrodes Place left hand fingers here for an EKG reading See lab guide below Another way to sample the user EKG is by using Welch Allyn ECG Lead Wires for Atlas Monitor piee 3 lead AHA or similar Not included in the TWR S08MM1 28 K IT Figure 1 MED EKG module Please refer to schematic or MED EKG user manual for details Note The following lab assumes the user has loaded the DVD at f and has extracted all zipped files under working folder d work Please replace the path if your directory is different Step by Step Guide Configuring the Hardware 4 On the TWR SO8MM128 module remove 1 Ensure jumper J16 on TWR SER has pins 3 Set the default jumpers for MED EKG as the jumpers that connect pins 1 and 2 9 Assemble the Tower System and configure and 10 11 and 12 and 13 and 14 from the jumpers to the default settings as header J18 shown in Step 2 of the Quick Start Guide QSG Ensure that all of the boards are pressed securely together Tip It is easier to set the default jumpers before assembling the Tower System You can follow the jumper settings shown in Step 2 of the QSG 5 Connect the MED EKG board to the TWR S08MM128 board Ensure that the pin alignment is correc
13. t See Figure 2 and 4 connected as shown in Figure 2 of the QSG This selects the USB port to support device class transmission which is required for printing the EKG signal to the MED EKG GUI shown in Step 2 of the QSG or Figure 1 in this lab Note the J2 setting there are two silk screened labels indicating pin 1 around J2 Set J2 as indicated in Figure 1 MED EKG module in this lab Figure 2 Connecting the MED EKG to the Tower System Lab Tutorial for TWR SO8MM128 KIT 7 TOWERSYSTEM Connecting to the Computer 6 Connect the first USB cable to the computer and the mini USB connector on the TWR SER module If Windows asks for a driver at this point cancel it We will load the proper driver later in the lab 7 Connect the second USB cable to the computer and the mini USB connector on the TWR SO8MM128 module Installing OSBDM Debugger Driver Optional 8 Loading open source background debug module OSBDM driver Freescale OSBDM is used to program and debug the main MCU SO8MM1 28 The first time the TWR SO8MM128 mini USB connects to the PC Windows will ask to load the driver If the OSBDM has already been used on your PC Windows will not ask for the driver and you can skip to Step 12 9 On the screen shown here select No not at this time and click Next Welcome to the Found New Hardware Wizard Read ou peyacy poke Can Windows connect to Windows Update to search for soltware
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