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UG-041Evaluation Kit User GuideAdditional Download/Run OptionsThe program starts running automatically after the download iscomplete; this is indicated by a flashing LED.The MicroConverter incorporates a serial download protocolthat also allows various download/run options (see uC004 atC:\ADuC\Documentation\TechNotes provided on the CD).USING THE PC COM PORTOnly one application at a time can use the PC serial port.These options, as well as other options, including erasing codeor erasing code and data, can be selected via the Configurationwindow as shown in Figure 5. Remember, this window appearsafter clicking Configuration on the Windows Serial Downloaderwindow (see Figure 3). Certain options may be unavailable,depending on the MicroConverter used.The WSD uses the PC COM serial port only when Resetting the deviceDownloading to the deviceSending the run command to the deviceTherefore, the WSD does not have to be closed before launchingthe debugger/WASP/hyperterminal or any other applicationthat uses the PC COM serial port.However, if another application that uses the PC serial portis open, then the WSD is not able to communicate withthe MicroConverter until the PC serial port is released bydisconnecting/closing the other application.DOWNLOADING VIA THE USB-EA EMULATOR08412-005The USB-EA Emulator for Debugging section discusses usingthe USB-EA emulator for debug purposes. However, it is alsopossible to use the USB-EA emulator to serially program theADuC8xx parts via the EA pin. This does not require a connectionto the UART pins.Figure 5. Configuration WindowOn the Configuration window1.2.3.Select Run Automatically after download and click OK.Enter serial download mode as described in Step 2 in theOpening the Windows Serial Downloader section.Download the required file as described in the DownloadingUsing the WSD section.After installing the USB-EA emulator, your PC assigns theemulator a COM port.When using the USB-EA emulator to download to theADuC8xx, select this COM port in the WSD application andfollow the instructions provided in the USB-EA Emulator forDebugging section.Rev. B Page 6 of 16

Evaluation Kit User GuideUG-041USB-EA EMULATOR FOR DEBUGGINGThe USB-EA emulator allows nonintrusive debugging of theADuC8xx series of devices. The USB-EA pod is either shippedas part of the QuickStart Plus kit or purchased separately.The following parts are supported by the USB-EA 34ADuC836ADuC845ADuC847ADuC848The debugger interfaces to the ADuC8xx via a single pin—theEA pin of the ADuC8xx part. To enter debug mode, first placethe part into download mode by toggling the RESET pin whileholding the PSEN pin low. When using the evaluation boards,this involves keeping the SERIAL DOWNLOAD switch pressedwhile pressing and releasing the RESET switch.CONNECTING THE USB-EA EMULATOR TO THETARGET BOARDThe pod connects to a PC via a standard mini-USB cable. Itconnects to a target board via a 2-pin header.08412-006 Note that the ADuC812/ADuC814/ADuC824 are not supportedby the USB-EA emulator.Figure 6. Target Board Connected to the USB-EA EmulatorRev. B Page 7 of 16

UG-041Evaluation Kit User GuideDRIVERS FOR THE USB-EA EMULATOR2.Next, select the Port Settings tab and click Advanced.If the USB drivers for the USB-EA dongle do not installautomatically on your PC, then download drivers for theFT245R part for your operating system from the official websitefor the Future Technology Devices International Ltd.08412-009When the drivers are installed and the USB-EA dongle isconnected to the PC, it appears as an extra COM port inthe Device Manager window as shown in Figure 7.Figure 9. USB Serial Port Properties WindowIn the Advanced Settings window, change the COM PortNumber to a port lower than COM9 by making anappropriate selection.08412-0073.Figure 7. Device Manager WindowRight-click on USB Serial Port in the Device Managerwindow and then select Properties.Figure 10. Advanced Settings WindowClick OK and return to the main Device Manager window.To update the newly selected COM port, unplug and replugthe USB cable to the USB-EA dongle. The newly selectedCOM port should appear in the Device Manager window.08412-0114.5.08412-0081.08412-010The older versions of the Keil tools only work with COM portsnumbered COM8 or lower. If your PC allocates a COM portnumber of COM9 or higher, change the COM port number toa lower number by completing the following steps:Figure 8. Choosing the USB Entry in the Device Manger WindowRev. B Page 8 of 16Figure 11. COM Port Selection in Device Manager Window

Evaluation Kit User GuideUG-041CONFIGURING KEIL TOOLS FOR THE USB-EAEMULATOR3.Click Settings at the top right (see Figure 12) and thenselect 1-Pin Pod and the COM port assigned to theemulator, as shown in Figure 13. Use the Device Managerto identify the appropriate COM port.08412-0132.Open your project using a recent version of Keil PK51development software.From the Keil uVision menu, select Flash ConfigureFlash Tools Debug.Make the selections as shown on the right side ofFigure 12, making sure to select the ADI Monitor Driver.Figure 13. Target Setup WindowThe latest 8051 tools are available for download from the Keilwebsite.08412-0121.4.Figure 12. Options for Target WindowRev. B Page 9 of 16

UG-041Evaluation Kit User GuideCONFIGURING IAR TOOLS FOR THE USB-EAEMULATOR1.Open your project using a recent version of IAR EW51development software.In the Options window, select Debugger in the Category box,and then select Analog Devices in the Driver box.On the Serial Port tab, ensure that the correct COM portis selected. Use the Device Manager to identify the correctCOM port.08412-0162.4.08412-014Figure 16. Serial Port TabFigure 14. Options WindowKEIL/IAR LIMITATIONS WHEN USING THE USB-EAEMULATORSelect Analog Devices in the Category box, and then onthe Download tab select UART debug mode.Note the following limitations: 08412-0153.Note that the latest 8051 tools are available for download on theIAR company website.Figure 15. Download TabRev. B Page 10 of 16The halt feature does not work with older versions of theKeil or IAR tools. See the IAR and Keil websites for furtherdetails and updated feature lists.To stop the program, breakpoints should be inserted.

Evaluation Kit User GuideUG-041TIMING CONSIDERATIONS WHEN DEBUGGINGOther timing considerations to keep in mind are as follows:As with other 8052-based parts, the watchdog on ADuC8xxparts is not stopped during debugging. This leads to unpredictable results when the watchdog timer times out. Duringinitial development, it is recommended that the watchdog timerbe left disabled. For final software, Analog Devices suggests thatyou include code similar to the code that follows. When debugging, place a breakpoint at the second line shown, andwhen this breakpoint is reached manually, using the debugger,change the value in cWdcon to 0x00 so that the watchdog doesnot start. This scheme ensures that the program is debugged asit will be placed in the field. The watchdog itself cannot bedebugged by the debugger.As with other 8052-based debuggers, the user should not haltthe ADuC8xx if the part is either in idle or power-downmode. When a break from either power saving modeoccurs, the debugger will not be able to regain control ofthe part and the debug interface will crash.The timers on the ADuC8xx are not stopped on a breakfrom emulation. They continue to run if left enabled whenbreaking from emulation. cWdcon 0xe2 ;//Place parameters for watchdog in variable cWdcon.WdWr(cWdcon);//Call assembly function to start watchdog. cWdcon:setbWDWRmovWDCON,r7//Assume interrupts not enabled.//Parameter cWdcon passed in r7.retRev. B Page 11 of 16

UG-041Evaluation Kit User GuideTHE ADuC WASPThe Windows analog software program (WASP) is a generalapplication for all MicroConverter products that allows analysisof the analog performance of these parts. The WASP recognizeswhich MicroConverter the PC is communicating with beforeautomatically downloading the appropriate code.Clicking Next bypasses the download sequence and can be usedif the WASP code is already downloaded and running on theMicroConverter. To identify the MicroConverter for the WASPsoftware, select the appropriate MicroConverter from theMicroConverter Select option box and click Next.This section serves as a tutorial to introduce both the SARWASP (for SAR ADC parts ADuC812, ADuC814, ADuC831,ADuC832, ADuC841, ADuC842, and ADuC843) and theΣ-Δ WASP (for Σ-Δ ADC parts ADuC816, ADuC824, ADuC834,ADuC836, ADuC845, ADuC847, and ADuC848). The termsSAR WASP and Σ-Δ WASP relate to the same WASP software.The software differentiates between the different products.SAR WASPAfter downloading the appropriate code, the WASP launches anacquisition window. This allows the user to configure, control,and analyze the ADC noise performance with the variousanalog and digital peripherals enabled/disabled.3.4.From this acquisition window, you can Select the channel for converting Set up the ADC conversion time and sampling parameters Select the number of samples to acquire Set up voltages on the DAC channels Select the use of the internal reference or an externalreference device Enable/disable various analog/digital peripheralsFigure 18 shows an example for converting on the temperaturesensor using the internal reference as displayed. Using theexample parameters shown, click Run. The acquired ADCsamples appear on the chart as shown in the bottom portion ofthe window for the ADuC812.08412-0182.Power up the evaluation board using the 9 V power supply.Connect the evaluation board to the COM1 serial port ofyour PC using the RS-232 dongle cable connected to the4-way header, J4.Place the MicroConverter into serial download mode asdescribed in the Opening the Windows Serial Downloadersection.From the Start menu, choose Programs ADuC WASP.This launches the WASP application. The WASP executablefile, WASP.exe, is located at C:\ADuC\WASP\WASP.exe.Click Download. The ADuC8xx window appears and thecode starts to download. A task bar indicates the downloadprogression. A message appears when the file is downloaded.The program automatically runs when the download iscomplete.Figure 18. SAR Acquisition Window08412-0171.An acquisition window (see Figure 18) opens for any of the SARADC MicroConverter products (ADuC812, ADuC814, ADuC831,ADuC832, ADuC841, ADuC842, and ADuC843).Figure 17. WASP WindowWhen all the samples are collected, the WASP immediately opensthe ADC Noise Analysis window. The ADC Codes Histogramand the ADC Data Analysis sections within this window providea measure of the code distribution for the ADC input.Rev. B Page 12 of 16

Evaluation Kit User GuideUG-04108412-019Click Run to send this default configuration to theMicroConverter device and to begin the conversions. Thewindow changes to be configured for a single primary ADCacquisition sequence. The results of conversion are displayed inreal time. Because the channel is configured for an internalshort, ADC conversions close to 0x80000 can be expected. TheWASP performs 500 ADC conversions by default and displaysthe conversion results.Figure 19. ADC Noise Analysis WindowClick Return to Acquisition Window in the ADC NoiseAnalysis window (see Figure 19) to return to the acquisitionwindow.08412-020The functionality of the DAC(s) and general digital peripheralscan also be exercised via the options available from theacquisition window.Σ-Δ WASPFigure 20. Σ-Δ Acquisitions Window, Primary ADCAn acquisition window (see Figure 20) opens for any of the Σ-ΔADC MicroConverter products (ADuC816, ADuC824, ADuC834,ADuC836, ADuC845, ADuC847, and ADuC848).From this acquisitions window, you can Select the channel on which you want to convertSet up the ADC update rateSelect the number of samples that you want to acquireSet up voltages on the DAC channelsSelect the use of the internal reference or an externalreference deviceEnable/disable various analog/digital peripheralsWhen all the samples are collected, the WASP immediatelyopens the ADC Noise Analysis window. This window displayssome mathematical analysis on the ADC conversions, includingrms noise (in µV and bits) and peak-to-peak noise (in codedistribution, µV, and bits). The most important performancefigures are highlighted in red in Figure 21.Switch ConfigurationBy default, the WASP enables the primary ADC to be configuredas shown in Figure 20. In this example, the primary ADC isconverting in bipolar mode using an external reference on the2.56 V range with internally shorted input AIN2 connected toAIN2 (ADuC845/ADuC847 AINCOM connected to AINCOM).The auxiliary ADC, DAC, and current sources are all disabled.Note that auxiliary ADC and DAC are not available on theADuC847.08412-021Make sure that the external reference (2.5 V REF ) is connected(S1.6 ON) for the ADuC845/ADuC847 (S4.5 ON) and that AIN2is biased to 2.5 V (S1.7 ON). For the ADuC845/ADuC847, readAINCOM for AIN2 and ensure that AINCOM is biased to2.5 V (S4.7 ON). In addition, ensure that REF is grounded(S1.5 ON) for the ADuC845/ADuC847 (S4.4 ON). All otherconnections should be off.Figure 21. ADC Noise Analysis Window with Performance HighlightsClick Return to Acquisition Window in the ADC NoiseAnalysis window to return to the acquisition window.The functionality of the DAC(s) and general digital peripheralscan also be exercised via the options available from theacquisition window.Rev. B Page 13 of 16

UG-041Evaluation Kit User GuideINSTALLED DOCUMENTATION AND CODE DIRECTORYInstalling the MicroConverter QuickStart Development System CD provides documentation for all the MicroConverter products atC:\ADuC\Documentation. Review this documentation prior to starting the QuickStart Development System.In the Documentation folder, directories for each product exist, as well as a QuickStartTools directory and a TechNotes directory.Each of the product directories follows a similar folder structure as shown in the example that follows. All technical notes for any ofthe MicroConverter products appear in the \TechNotes directory. Check the Analog Devices website for the latest technical entation\ADuC8XX\DataSheets\ADuC8XX Y.pdfADuC8XX Data Sheet Version YErrata8XX Y.pdfADuC8XX Errata Sheet Version Y8XXqrefY.pdfADuC8XX Quick Reference Guide Version YEvalDocs\8XXEvalGuide Y.pdfADuC8XX Eval Board Reference Guide Version Y8XXPCB Y.pdfADuC8XX Eval Board Schematic Version Y8XXgbrs\8XXgbrs Y.zipADuC8XX Eval Board Gerber Files Version Y.Other\8XXFAQs Y.pdfADuC8XX Frequently Asked Questions Version Y8XXgetstartedY.pdfGet Started Guide Version YUSERGuideDRAFTY.pdfDraft User Guide Version YINSTALLED CODE LOCATIONSInstalling the MicroConverter QuickStart Development System CD provides an assembly code directory for each MicroConverterproduct at C:\ADuC\Code. Product directories for each MicroConverter exist with assembly code examples. For example, the productdirectories for the ADuC832 are as follows and are located in the \832 folder.C:\ADuC\Code\832\ADCCode examples for the ADCDACCode examples for the DACDualDPTRCode example for using the dual data pointerFlashEECode example for using the Flash/EE data memoryI2CCode examples for I2C master and slave operationMiscMiscellaneous MicroConverter code examplePDownCode example demonstrating power-down modePSMonCode example for the power supply monitorSPCode example for the extended stack pointerSPICode examples for SPI master and slave operationTICCode example for the time interval counterUartCode examples for configuring the UARTWDTimerCode example for watchdog timerRev. B Page 14 of 16

Evaluation Kit User GuideUG-041Example C-code is available in the C-Code directory. C-Code for the ADuC832 is in the \832 folder.C:\ADuC\C-Code\832\ADCCode examples for the ADCDACCode example for the DACMISCMiscellaneous MicroConverter code examplePDOWNCode example demonstrating power-down modePLLCode example for changing the core execution speedTICCode example for the time interval counterRev. B Page 15 of 16

UG-041Evaluation Kit User GuideNOTESESD CautionESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protectioncircuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.Legal Terms and ConditionsBy using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditionsset forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until youhave read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is providedfor the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additionallimitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, includingownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer maynot disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to

C:\ADuC\ASM51 directory, double-click the ASM51.exe executable. 2. In the DOS window, enter the path of the assembly file you want to assemble. For example, to assemble the example file C:\ADuC\Download\DemoCode.asm, enter C:\ADuC\Download\DemoCode.asm. 08412-002