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1. TPMC550_ERR_INVALID_HANDLE The specified TPMC550_HANDLE is invalid TPMC550 SW 65 Windows Device Driver Page 26 of 31 TEWS TECHNOLOGIES 3 2 8 tomc550SeqStatus NAME tpmc550SeqStatus get sequencer status and statistic information SYNOPSIS TPMC550_STATUS tpmc550SeaStatus TPMC550_ HANDLE hdl int OperatingState int status int CycleCount int UnderflowCount int EmptyCount DESCRIPTION This function reads sequencer status and statistic information from the specified device PARAMETERS hdl This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function OperatingState This argument is a pointer to an int variable where the current operating state of the sequencer is returned Possible operating states are Value Description TPMC550_STOPPED The sequencer is stopped TPMC550_ READY The sequencer facility is configured and ready to start TPMC550 RUNNING The sequencer is running TPMC550 SW 65 Windows Device Driver Page 27 of 31 TEWS TECHNOLOGIES status This argument is a pointer to an int variable where current error status of the seguencer is returned After calling this function the error status code will be set to TPMC550 SEO OK Possible error status codes are Value Description TPMC550 SEG OK Seguencer is working fine No errors detected TPMC550 SEQ UNDERFLOW The seguencer hardware has dete
2. TEWS The Embedded VO Company TECHNOLOGIES TPMC550 SW 65 Windows Device Driver 8 4 Channels of Isolated 12 Bit D A Version 2 0 x User Manual Issue 2 0 0 June 2011 TEWS TECHNOLOGIES GmbH Am Bahnhof 7 25469 Halstenbek Germany Phone 49 0 4101 4058 0 Fax 49 0 4101 4058 19 e mail info tews com www tews com TPMC550 SW 65 Windows Device Driver 8 4 Channels of Isolated 12 Bit D A Supported Modules TPMC550 Issue 1 0 TEWS TECHNOLOGIES This document contains information which is proprietary to TEWS TECHNOLOGIES GmbH Any reproduction without written permission is forbidden TEWS TECHNOLOGIES GmbH has made any effort to ensure that this manual is accurate and complete However TEWS TECHNOLOGIES GmbH reserves the right to change the product described in this document at any time without notice TEWS TECHNOLOGIES GmbH is not liable for any damage arising out of the application or use of the device described herein 2003 2011 by TEWS TECHNOLOGIES GmbH Date March 28 2003 1 0 1 General revision new address TEWS LLC November 11 2008 2 0 0 Windows support and API functions added June 14 2011 TPMC550 SW 65 Windows Device Driver Page 2 of 31 TEWS TECHNOLOGIES Table of Contents 1 INTRODUCTION RE EE EE N N eN 4 2 INSTALLATION sissies ee GREG Dee EE ee GEGEE GE GEGEE aiaiai iaaa 5 2 1 Software Installation eie ie RE ei ee EE n EE ee vee Re ke EF ee gee De ee ee Di ON
3. Page 30 of 31 TENSE TECHNOLOGIES EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result int NumChan int bipolar MAX_CHAN char OffsCorr MAX_CHAN char GainCorr MAX_CHAN Get module information data result tpmc550GetModuleInfo hdl amp NumChan if result TPMC550 OK handle error RETURNS OffsCorr GainCorr On success TPMC550_ OK is returned In the case of an error the appropriate error code is returned by the function ERROR CODES TPMC550_ERR_INVALID_HANDLE The specified TPMC550_HANDLE is invalid TPMC550 SW 65 Windows Device Driver Page 31 of 31
4. RE Ee EE 5 2 1 1 Windows 2000 XP cece cence ee Re ee eee ee Re ee ee ae ee ee ee ee Re ee Ge Re ee REUE ee ee ee Ge ke ee 5 212 ee AE EE EE uh seven EE N 6 2 2 Confirming Driver Installation ese Rae EE RE AR RA AR KEER ER EE AR KA AR REG ER KEER KEER AR REG AR RAGE EE EE AK KA AR RA nnmnnn nnn 6 Ad APIIDOCUMENTATION eis ses ss ee Gee Ge ee GE GEE Ee Ge Ee Ge EG ke Ge ee aina 7 3 1 General De eie LA EE N OE EE inaia t iaiia 7 Sided se EE EE RR EE iaia 7 3 1 2 less dee MEE RE AR EE EE N EE N 9 3 2 Device Access FunctiONS ees ER EE RR RR EE RE RR ER REGEER ER REGEER ER RE GE nnmnnn nnmnnn nnmnnn nnmnnn RR RR REGEER REKE GE RR ER ee 11 eN eise MEE ER ER ER EE EN 11 3 2 2 tpmc550DacWriteMult esse eee ee ee ee E ee Re ee Ge Re ee ee ee ee Re ee ee ke ee Ge Re ee ee 13 3 2 3 tpme550SegSetup ie ie ee RA Ge AA Ge AA AR ee AA AR Ge AA AA Ge AA Ge AA AR Ne RA Ke AA Se AA ee 15 3 2 4 tpmeo550SegSt rt iiinis EE aSr Raae 18 eN ole ss oe else ER OE EE AE EE EA 20 3 22 60 tPMiCOS50 SSW ite BR EE EE RE EE eE 22 AN oes TER EE EE seine dead 25 328 APMCHSSOSSQStALUS oo ie se Be EG ae Ee ee dee ee de ME GE BE be Ee ER RE ER ee ee bee EA ek Ee AE Ge EE 27 3 2 9 tpmc550GetModulelnfO iis eie ee de se AR AA Ge AA Re AR AA AA AA AA ee RR AA ee AA Ge ee ee 30 TPMC550 SW 65 Windows Device Driver Page 3 of 31 TEWS TECHNOLOGIES 1 Introduction The TPMC550 SW 65 Windows device driver is a kernel mode dr
5. Timeout during D A conversion TPMC550 ERR BUSY This error occurs if the seguencer is still running Please stop the sequencer before executing this function TPMC550 SW 65 Windows Device Driver Page 14 of 31 TEWS TECHNOLOGIES 3 2 3 tpmc550SedSetup NAME tpmc550SeqSetup Setup sequencer facility SYNOPSIS TPMC550_STATUS tpmc550SeaSetup TPMC550 HANDLE hdl int CycleTime int NumActiveChannels int NumBufTuples int ChannelAllocation MAX_CHAN unsigned int flags DESCRIPTION This function configures the sequencer facility and allocates memory for the sequencer software ring buffer The behaviour of the sequencer facility is controlled by a set of bit flags which are described below Basically the sequencer will perform a D A conversion on active channels in a deterministic time period controlled by a cycle timer or the duration of the conversion itself To be sure that D A data will be available for the next cycle just in time data for the sequencer will be provided by a configurable ring buffer The ring buffer can be asynchronously filled by the application program The sequencer facility provides two operating modes In loop mode TPMC550_LOOP the buffer will be filled completely with new data e g wave form The contents of the buffer will be output continuously in a loop In normal mode TPMC550 LOOP is not set the application program must provide new data for every cycle If the buffer is empty then
6. and structure definitions Example application Application Programming Interface source Application Programming Interface header This document Information about the Device Driver Release Release history 2 1 Software Installation 2 1 1 Windows 2000 XP This section describes how to install the TPMC550 Device Driver on a Windows 2000 XP operating system After installing the TPMC550 card s and boot up your system Windows 2000 XP setup will show a New hardware found dialog box 1 The Upgrade Device Driver Wizard dialog box will appear on your screen Click Next button to continue 2 Inthe following dialog box choose Search for a suitable driver for my device Click Next button to continue 3 Insert the TPMC550 driver media select Disk Drive in the dialog box Click Next button to continue 4 Now the driver wizard should find a suitable device driver on the media Click Next button to continue 5 Complete the upgrade device driver and click Finish to take all the changes effect 6 Now copy all needed files tpmc550 h and API files to the desired target directories After successful installation the TPMC550 device driver will start immediately and creates devices TPMC550_1 TPMC550_2 for all recognized TPMC550 modules TPMC550 SW 65 Windows Device Driver Page 5 of 31 TEWS amp TECHNOLOGIES 2 1 2 Windows 7 This section describes how to install the TPMC550 SW 65 Device Dri
7. can be used to adjust the buffer start pointer for subsequent writes TPMC550 SW 65 Windows Device Driver Page 22 of 31 TENSE TECHNOLOGIES EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result int WrittenSize short ForOneCycle 4 short ForHundredCycles 100 4 Fill new data into the data buffers ForHundredCycles 0 0 1 first cycle first channel ForHundredCycles 0 1 2 first cycle second channel ForHundredCycles 1 0 11 second cycle first channel T bas ForHundredCycles 99 3 1234 100th cycle last channel Write new data for 100 cycles and 4 active channels 100 4 values result tpmc550Seqwrite hdl sizeof ForHundredCycles short ForHundredCycles WrittenSize i if result TPMC550_OK handle error if result TPMC550_ERR_BUF_FULL send remaining data later Write new data for 1 cycle and 4 active channels 4 values result tpmc550Seqwrite hdl sizeof ForOneCycle ForOneCycle WrittenSize i TPMC550 SW 65 Windows Device Driver Page 23 of 31 TENSE TECHNOLOGIES RETURNS On success TPMC550_ OK is returned In the case of an error the appropriate error code is returned by the function ERROR CODES TPMC550_ERR_INVALID_HANDLE The specified TPMC550_ HANDLE is invalid TPMC550_ERR_NOT_READY The sequencer is not running TPMC550 ERR
8. stored in the TPMC550 EEPROM for all selected channels TPMC550 SIMCONV Start conversion of selected channels in latched mode and update analog outputs simultaneously values This array contains the new 12 bit D A values Valid data range depends on the voltage range of the specified channel 0 4095 for 0 10V voltage range and 2048 2047 for 10V voltage range TPMC550 SW 65 Windows Device Driver Page 13 of 31 TENSE TECHNOLOGIES Array index 0 corresponds to the first DAC channel array index 1 corresponds to the second DAC channel and so on Only channels selected for update ChannelMask will be modified EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result unsigned int ChannelMask unsigned int flags short values MAX_CHAN Update channel 1 4 and 8 simultaneously with corrected D A values ChannelMask 1 lt lt 0 1 lt lt 3 1 lt lt 7 flags TPMC550_CORR TPMC550_SIMCONV value 0 111 channel 1 value 3 444 channel 4 value 7 888 channel 8 result tpmc550DacWriteMulti hdl ChannelMask flags values if result TPMC550 OK handle error RETURNS On success TPMC550_ OK is returned In the case of an error the appropriate error code is returned by the function ERROR CODES TPMC550 ERR INVALID HANDLE The specified TPMC550_ HANDLE is invalid TPMC550 ERR RANGE Invalid channel number TPMC550 ERR TIMEOUT
9. 31 TEWS TECHNOLOGIES 3 2 Device Access Functions 3 2 1 tpmc550DacWrite NAME tomc550DacWrite write D A value to specified channel SYNOPSIS TPMC550 STATUS tpmc550DacWrite TPMC550 HANDLE hdl int channel unsigned int flags short value DESCRIPTION This function writes a new value to a specific channel and starts D A conversion immediately in transparent mode PARAMETERS hdl This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function channel This argument specifies the DAC channel which shall be updated Possible values are 1 up to the number of available DAC channels of the specific module flags This argument specifies a set of bit flags that control the D A conversion Value Description TPMC550_CORR Perform an offset and gain correction with factory calibration data stored in the TPMC550 EEPROM value This argument specifies the new 12 bit D A value Valid data range depends on the voltage range of the specified channel 0 4095 for 0 10V voltage range and 2048 2047 for 10V voltage range TPMC550 SW 65 Windows Device Driver Page 11 of 31 EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result result tpmc550DacWrite hdl 1 if result TPMC550_OK handle error RETURNS TEWS TECHNOLOGIES TPMC550 CORR 1234 On success TPMC550 OK is re
10. BUF TOO SMALL The buffer does not contain enough data for all active channels TPMC550 ERR NOMEM The passed data buffer does not fit into the configured sequencer buffer This error is only relevant in loop mode TPMC550 LOOP TPMC550 ERR BUF FULL The sequencer buffer is full Not all data was written to the buffer Use the contents of WrittenSize to adjust the data pointer to write the remaining data tuples TPMC550 SW 65 Windows Device Driver Page 24 of 31 TEWS TECHNOLOGIES 3 2 7 tpmc550SeqFlush NAME tpmc550SeqFlush flush the sequencer ring buffer SYNOPSIS TPMC550_STATUS tpmc550SeqFlush TPMC550_HANDLE hdl DESCRIPTION This function flushes the ring buffer of the sequencer facility The analog output of active channels will hold the last converted data until new data is written with the tomc550SeqWrite function PARAMETERS hal This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result flush the sequencer ring buffer result tpmc550SeqFlush hdl if result TPMC550 OK handle error TPMC550 SW 65 Windows Device Driver Page 25 of 31 TEWS amp TECHNOLOGIES RETURNS On success TPMC550_ OK is returned In the case of an error the appropriate error code is returned by the function ERROR CODES
11. E tomc550GetModulelnfo Get module information SYNOPSIS TPMC550 STATUS tpmc550GetModulelnfo TPMC550 HANDLE hdl int NumChan int bipolar MAX_CHAN char OffsCorr MAX_CHAN char GainCorr MAX_CHAN DESCRIPTION This function reads module information data from the specified device PARAMETERS hdl This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function NumChan This argument is a pointer to an int variable where the number of available DAC channels is returned bipolar This argument is a pointer to an int array where the configured voltage range of each DAC channel is returned as boolean value The array element bipolar 0 contains the range stetting for DAC channel 1 bipolar 1 for DAC channel 2 and so forth If the corresponding value is TRUE then the voltage range of the channel is configured to 10V output bipolar otherwise it is configured to 0 10V output voltage range OffsCorr This argument is a pointer to a char array where the factory programmed offset correction data is returned OffsCorr 0 contains correction data for DAC channel 1 OffsCorr 1 for DAC channel 2 and so forth GainCorr This argument is a pointer to a char array where the factory programmed gain correction data are returned GainCorr 0 contains correction data for DAC channel 1 GainCorr 1 for DAC channel 2 and so forth TPMC550 SW 65 Windows Device Driver
12. NDLE hdl TPMC550_STATUS result Description If set the cycle of D A conversions will be controlled by the sequencer timer in steps of 100 microseconds otherwise the sequencer will run in continuous mode as fast as possible based on the conversion time If this flag is set loop mode the ring buffer never becomes empty Once completely filled the sequencer will continuously get data out of the buffer for the next conversion If this flag is not set normal mode and the buffer becomes empty then the sequencer will stop and it holds the last output value until new data arrives Perform an offset and gain correction with factory calibration data stored in the TPMC550 EEPROM for all selected channels Start conversion of active channels in latched mode and update analog outputs simultaneously int ChannelAllocation MAX_CHAN unsigned int flags Setup the sequencer with 2 active channels 1 and 4 in timer mode with 1 ms cycle time The sequencer buffer shall store data tuples for up to 100 cycles ChannelAllocation 0 1 TPMC550 SW 65 Windows Device Driver Page 16 of 31 TEWS TECHNOLOGIES ChannelAllocation 1 4 flags TPMC550_TIMERMODE TPMC550_CORR TPMC550_SIMCONV result tpmc550SeqSetup hdl 10 2 100 ChannelAllocation flags if result TPMC550_OK handle error RETURNS On success TPMC550_ OK is returned In the case of an err
13. cted a data underflow condition The driver was not able to provide new data within a seguencer timer cycle TPMC550 SEG NODATA No data available in the ring buffer for output CycleCount This argument is a pointer to an int variable where the total number of sequencer cycles since sequencer start is returned UnderflowCount This argument is a pointer to an int variable where the total number of sequencer underflows since sequencer start is returned EmptyCount This argument is a pointer to an int variable where the total number of empty buffer cycles since sequencer start is returned EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result int OperatingState int status int CycleCount int UnderflowCount int EmptyCount Read sequencer status and statistic information result tpmc550SeqStatus hdl amp OperatingState amp status amp CycleCount amp UnderflowCount amp EmptyCount if result TPMC550 OK handle error TPMC550 SW 65 Windows Device Driver Page 28 of 31 TEWS amp TECHNOLOGIES RETURNS On success TPMC550_ OK is returned In the case of an error the appropriate error code is returned by the function ERROR CODES TPMC550_ERR_INVALID_HANDLE The specified TPMC550_HANDLE is invalid TPMC550 SW 65 Windows Device Driver Page 29 of 31 TEWS TECHNOLOGIES 3 2 9 tpmc550GetModulelnfo NAM
14. hat specifies the name of the device EXAMPLE include tpmc550api h TPMC550_HANDLE hdl open file descriptor to device hdl tpmc5500pen TPMC550_1 if hdl NULL handle open error TPMC550 SW 65 Windows Device Driver Page 7 of 31 TEWS amp TECHNOLOGIES RETURNS A device handle or NULL if the function fails To get extended error information call GetLastError ERROR CODES All error codes are standard error codes set by the I O system TPMC550 SW 65 Windows Device Driver Page 8 of 31 TEWS TECHNOLOGIES 3 1 2 tpmc550Close NAME tpmc550Close Closes a Device SYNOPSIS TPMC550_STATUS tpmc550Close TPMC550_HANDLE hdl DESCRIPTION This function closes previously opened devices PARAMETERS hal This value specifies the device handle to the hardware module retrieved by a call to the corresponding open function EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result close file descriptor to device result tpmc550Close hdl if result TPMC550 OK handle close error TPMC550 SW 65 Windows Device Driver Page 9 of 31 TEWS amp TECHNOLOGIES RETURNS On success TPMC550_OK or an appropriate error code ERROR CODES All error codes are standard error codes set by the I O system TPMC550 SW 65 Windows Device Driver Page 10 of
15. invalid TPMC550 ERR NOT READY The seguencer facility was not properly configured Execute the function tomc550SeqSetup first TPMC550 ERR NODATA No data is available in the ring buffer to start the sequencer facility Use the function tpmc550SeqWrite to write at least one data tuple before starting the sequencer TPMC550 SW 65 Windows Device Driver Page 19 of 31 TEWS TECHNOLOGIES 3 2 5 tomc550SeqStop NAME tpmc550SeqStop stop the sequencer facility SYNOPSIS TPMC550 STATUS tpmc550SeaStop TPMC550_HANDLE hdl DESCRIPTION This function stops the sequencer facility All allocated resources e g ring buffer memory will be freed PARAMETERS hal This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result stop the sequencer result tpmc550SeqStop hdl if result TPMC550 OK handle error TPMC550 SW 65 Windows Device Driver Page 20 of 31 TEWS amp TECHNOLOGIES RETURNS On success TPMC550_ OK is returned In the case of an error the appropriate error code is returned by the function ERROR CODES TPMC550_ERR_INVALID_HANDLE The specified TPMC550_HANDLE is invalid TPMC550 SW 65 Windows Device Driver Page 21 of 31 TEWS TECHNOLOGIES 3 2 6 tomc550Seqwrite NAME tpmc550Se
16. iver which allows the operation of supported hardware modules on an Intel or Intel compatible Windows operating system Supported Windows versions are Windows 2000 Windows XP Windows XP Embedded Windows 7 32bit and 64bit VV VV The TPMC550 SW 65 device driver supports the following features writing and converting D A values to a specified channel simultaneous D A conversion on selected channels sequencer facility with configurable software ring buffer reading module configuration voltage range and correction data YYYY The TPMC550 SW 65 supports the modules listed below TPMC550 8 4 Channels of Isolated 12 bit D A PMC To get more information about the features and use of TPMC550 devices it is recommended to read the manuals listed below TPMC550 User manual TPMC550 SW 65 Windows Device Driver Page 4 of 31 2 Installation TEWS amp TECHNOLOGIES Following files are located in directory TPMC550 SW 65 on the distribution media i386 amd64 installer 32bit exe installer_64bit exe topmc550 inf tpmc550 h example tpmc550exa c api tpmc550api c api tpmc550api h TPMC550 SW 65 2 0 0 pdf Release txt ChangeLog txt Directory containing driver files for 32bit Windows versions Directory containing driver files for 64bit Windows versions Installation tool for 32bit systems Windows XP or later Installation tool for 64bit systems Windows XP or later Windows installation script Header file with IOCTL codes
17. or the appropriate error code is returned by the function ERROR CODES TPMC550 ERR INVALID HANDLE The specified TPMC550 HANDLE is invalid TPMC550 ERR RANGE Invalid channel number or invalid number of channels TPMC550 ERR NOMEM Unable to allocate memory for the ring buffer TPMC550 ERR BUSY This error occurs if the seguencer is still running Please stop the sequencer before executing this function TPMC550 SW 65 Windows Device Driver Page 17 of 31 3 2 4 tpmc550SeqStart NAME tpmc550SeqStart start sequencer facility SYNOPSIS TPMC550_STATUS tpmc550SeqStart TPMC550_HANDLE hdl DESCRIPTION TEWS TECHNOLOGIES This function starts the sequencer facility Before calling this function the sequencer must be setup with tomc550SegSetup und the ring buffer must be filled with tpmc550SeqWrite PARAMETERS hal This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function EXAMPLE include tpmc550api h TPMC550_HANDLE hdl TPMC550_STATUS result start the seuencer result tpmc550SeqStart hdl if result TPMC550 OK handle error TPMC550 SW 65 Windows Device Driver Page 18 of 31 TENSE TECHNOLOGIES RETURNS On success TPMC550_ OK is returned In the case of an error the appropriate error code is returned by the function ERROR CODES TPMC550 ERR INVALID HANDLE The specified TPMC550 HANDLE is
18. qWrite write new sequencer data SYNOPSIS TPMC550 STATUS tpmc550SeqWrite TPMC550_ HANDLE hdl int size short values int WrittenSize DESCRIPTION This function writes new data to the sequencers data buffer The provided data buffer must always contain new data for all active channels tuple The number of tuples per write must be at least one up to unlimited This function will always write as many tuples as possible If the buffer becomes full the function will return immediately with the error TPMC550_ERR_BUF_FULL The number of written bytes will be returned in a variable pointed to by WrittenSize PARAMETERS hdl This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function size This argument specifies the size in bytes of the data buffer to write values This argument is a pointer to an array of short variables that contains data for all active channels for at least one sequencer cycle tuple Despite of the declaration as simple short pointer this array is treated as a two dimensional array with variable dimensions The rows of the array represent the number of tuples and the columns the number of active channels A declaration of this array will look like this data tuples channels WrittenSize This argument is a pointer to an int variable where the number of written bytes is returned In case of the error TPMC550_ERR_BUF_FULL this value
19. the sequencer will stop and it holds the last output value until new data arrives PARAMETERS hal This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function CycleTime This argument specifies the sequencer cycle time in steps of 100 us This argument is only relevant if the flag TPMC550_TIMERMODE is set NumActiveChannels This argument specifies the number of active channels Valid range is 1 up to the number of available channels 4 or 8 TPMC550 SW 65 Windows Device Driver Page 15 of 31 NumBufTuples TEWS TECHNOLOGIES This argument specifies the size of the sequencer software ring buffer In this case size is not the number of bytes to allocate but rather the number of tuples data for all active channels per cycle ChannelAllocation This argument specifies the channel number of active channels and their enumeration inside a tuple The function tomc550SeqWrite awaits new data for active channels in this order The first array element contains the channel number 1 n of the first active channel The second array element the channel number of the second active channel and so forth Unused array elements can be left undefined flags This argument specifies a set of bit flags that control the sequencer operation Value TPMC550 TIMERMODE TPMC550_LOOP TPMC550_CORR TPMC550_SIMCONV EXAMPLE include tpmc550api h TPMC550_HA
20. turned In the case of an error the appropriate error code is returned by the function ERROR CODES TPMC550_ERR_INVALID_HANDLE TPMC550_ERR_RANGE TPMC550_ERR_TIMEOUT TPMC550_ERR_BUSY TPMC550 SW 65 Windows Device Driver The specified TPMC550_HANDLE is invalid Invalid channel number Timeout during D A conversion This error occurs if the sequencer is still running Please stop the sequencer before executing this function Page 12 of 31 TEWS TECHNOLOGIES 3 2 2 tpmc550DacWriteMulti NAME tpmc550DacWriteMulti write D A value to multiple channels SYNOPSIS TPMC550_STATUS tpmc550DacWriteMulti TPMC550 HANDLE hdl unsigned int ChannelMask unsigned int flags short values MAX_CHAN DESCRIPTION This function writes new values to specified channels and starts D A conversion immediately transparent mode or simultaneously latched mode PARAMETERS hdl This argument specifies the device handle to the hardware module retrieved by a call to the corresponding open function ChannelMask This argument selects DAC channels which shall be updated A set 1 bit specifies that the corresponding channel shall be updated Bit O corresponds to the first DAC channel bit 1 corresponds to the second DAC channel and so on flags This argument specifies a set of bit flags that control the D A conversion Value Description TPMC550_CORR Perform an offset and gain correction with factory calibration data
21. ver on a Windows 7 32bit or 64bit operating system Depending on the operating system type execute the installer binaries for either 32bit or 64bit systems This will install all required driver files using an installation wizard Copy needed files tomc550 h and API files to desired target directory After successful installation a device is created for each module found TPMC550_1 TPMC550 2 2 2 Confirming Driver Installation To confirm that the driver has been properly loaded perform the following steps 1 Open the Windows Device Manager a For Windows 2000 XP open the Control Panel from My Computer and click the System icon and choose the Hardware tab and then click the Device Manager button b For Windows 7 open the Control Panel from My Computer and then click the Device Manager entry 2 Click the in front of Embedded I O The driver TEWS TECHNOLOGIES TPMC550 8 4 Channel 12 Bit D A TPMC550 should appear for each installed device TPMC550 SW 65 Windows Device Driver Page 6 of 31 TEWS TECHNOLOGIES 3 API Documentation 3 1 General Functions 3 1 1 tpmc5500pen NAME tpmc550Open Opens a Device SYNOPSIS TPMC550_HANDLE tpmc550Open char DeviceName DESCRIPTION Before I O can be performed to a device a file descriptor must be opened by a call to this function PARAMETERS DeviceName This parameter points to a null terminated string t

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