Table of Contents
Keyword Index
 | Welcome to the FTDI Knowledgebase |
 | Documentation |
| Application Notes |
| ANVNC1L-01 Vinculum VNC1L Bootloader |
| Vinculum VNC1L Bootloader |
| VNC1L Bootloader Commands |
| Set Data Variables |
| Read Flash Block |
| Write Flash Block |
| Echo |
| VNC1L Bootloader Pseudo Code |
| VNC1L Bootloader Hardware Interface |
| VNC1L Programming Over USB |
| VNC1L Programming From a COM Port |
| VNC1L Programming From an MCU |
| Revision History |
| Contact |
| Disclaimer |
| AN232R-01 Bit Bang Modes for the FT232R and FT245R |
| Bit Bang Modes for the FT232R and FT245R |
| Overview |
| Asynchronous Bit Bang Mode |
| Synchronous Bit Bang Mode |
| CBUS Bit Bang Mode |
| References |
| History, Disclaimer, Contact |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232R-02 FTDIChip-ID for the FT232R and FT245R |
| FTDIChip-ID for the FT232R and FT245R |
| Overview |
| Using the FTDIChip-ID |
| Considerations |
| FT232R/FT245R Web Registration Example |
| References |
| History, Disclaimer, Contact |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232R-03 FTDI Windows Driver Pre-Installation |
| FTDI Windows Driver Pre-Installation |
| Overview |
| DIFx Driver Package Requirements |
| Sample DPInst.xml File |
| Uninstalling Drivers |
| References |
| History, Disclaimer, Contact |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232R-04 Windows Combined Driver Model |
| Introduction |
| Background |
| Architecture |
| Advantages |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN2232C-01 Command Processor for MPSSE and MCU Host Bus Emualtion Modes |
| Command Processor for MPSSE and MCU Host Bus Emulation |
| Overview |
| Data and Clock Definition |
| Data Bit Defintion |
| Clock Operation |
| Command Definitions |
| Bad Commands |
| Data Shifting Command Overview |
| MSB First |
| Clock Data Bytes Out on +ve Clock Edge MSB First (no Read) |
| Clock Data Bytes Out on -ve Clock Edge MSB First (no read) |
| Clock Data Bits Out on +ve Clock Edge MSB First (no Read) |
| Clock Data Bits Out on -ve Clock Edge MSB First (no Read) |
| Clock Data Bytes In on +ve Clock Edge MSB First (no Write) |
| Clock Data Bytes In on -ve Clock Edge MSB First (no Write) |
| Clock Data Bits In on +ve Clock Edge MSB First (no Write) |
| Clock Data Bits In on -ve Clock Edge MSB First (no Write) |
| Clock Data Bytes In and Out MSB First |
| Clock Data Bits In and Out MSB First |
| LSB First |
| Clock Data Bytes Out on +ve Clock Edge LSB First (no Read) |
| Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) |
| Clock Data Bits Out on +ve Clock Edge LSB First (no Read) |
| Clock Data Bits Out on -ve Clock Edge LSB First (no Read) |
| Clock Data Bytes In on +ve Clock Edge LSB First (no Write) |
| Clock Data Bytes In on -ve Clock Edge LSB First (no Write) |
| Clock Data Bits In on +ve Clock Edge LSB First (no Write) |
| Clock Data Bits In on -ve Clock Edge LSB First (no Write) |
| Clock Data Bytes In and Out LSB First |
| Clock Data Bits In and Out LSB First |
| TMS Commands |
| Clock Data to TMS/CS Pin (no Read) |
| Clock Data to TMS/CS Pin with Read |
| Set / Read Data Bits High / Low Bytes |
| Set Data Bits Low Byte |
| Set Data Bits High Byte |
| Read Data Bits Low Byte |
| Read Data Bits High Byte |
| Loopback Commands |
| Connect TDI/DO to TDO/DI for Loopback |
| Disconnect TDI/DO to TDO/DI for Loopback |
| Clock Divisor |
| Set TCK/SK Divisor |
| Instructions for MCU Host Bus Emulation Mode |
| Overview |
| MCU Host Emulation Mode Read Short Address |
| MCU Host Emulation Mode Read Extended Address |
| MCU Host Emulation Mode Write Short Address |
| MCU Host Emulation Mode Write Extended Address |
| Instructions for use in both MPSSE and MCU Host Emulation Modes |
| Send Immediate |
| Wait On I/O High |
| Wait On I/O Low |
| History, Disclaimer, Contact Information |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN2232C-02 Bit Mode Functions for the FT2232C |
| Bit Mode Functions For the FT2232 |
| Overview |
| FT_SetBitMode |
| FT_SetBitMode Example |
| FT_GetBitMode |
| FT_GetBitMode Example |
| References |
| History, Disclaimer, Contact |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232B-03 Optimizing D2XX Data Throughput |
| D2XX Applications - Optimizing Data Throughput Over USB |
| Introduction |
| Transfer Sizes |
| Driver Operation |
| Optimizing Performance |
| Revision History, Disclaimer, and Contact Information |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232B-04 Data Throughput, Latency and Handshaking |
| Data Throughput, Latency and Handshaking |
| Background |
| Data Transfer |
| The Need For Handshaking |
| Data Transfer Comparison |
| Continuous Data - Smoothing the Lumps |
| Buffers and the Latency Timer |
| Small Amounts of Data and End of Buffer Conditions |
| Adjusting the Receive Buffer Latency Timer |
| Effect of USB Buffer Size and the Latency Timer on Data Throughput |
| Adjusting the USB Transfer Size |
| Events and Flow Control |
| Event Characters |
| Flushing the Receive Buffer Using the Modem Status Lines |
| Flow Control |
| History, Disclaimer, Contact Information |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232B-05 Configuring FT232R, FT2232C and FT232BM Baud Rates |
| Setting Baud Rates for FT232R, FT2232 and FT232BM Devices |
| Introduction |
| Setting the Baud Rate |
| Baud Rate Calculation |
| Aliasing Baud Rates |
| Aliasing |
| Aliasing Using the Original Sub-Integer Divisors |
| Aliasing Using the Additional FT232B Sub-Integer Divisors |
| Revision History, Disclaimer, Contact Information |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232B-07 Configuring FTDI's VCP Drivers to use Location IDs |
| How To Configure VCP to Use a Specific COM Port |
| Introduction |
| Location IDs |
| Implementation |
| USBView |
| Limitations |
| Requirements |
| History, Disclaimer, and Contact Information |
| Document Revision History |
| Disclaimer |
| Contact Information |
| AN232B-10 Advanced Driver Options |
| Introduction |
| CDM USB Serial Converter Properties Page |
| CDM COM Port Advanced Properties Page |
| Modification of INF Files for Non-Default VID and PID Values |
| FTDIBUS.INF |
| FTDIPORT.INF |
| FTDIBUS.INF Options |
| Adjusting the Reset Pipe Retry Count |
| Using Location IDs |
| Limiting the Number of COM Ports That Can Be Installed |
| Override EEPROM Driver Setting |
| Power Management Options |
| USB Timeout |
| Disable EEPROM Writes |
| FTDIPORT.INF Options |
| Aliasing Baud Rates |
| Changing the Default USB Transfer Size |
| Setting a Custom Default Latency Timer Value |
| Enabling Modem Emulation Mode |
| Buffered Writes |
| Miscellaneous Options |
| Timeouts |
| Serial Enumerator |
| Serial Printer |
| Cancel If Power Off |
| Event On Surprise Removal |
| Set RTS On Close |
| Disable Modem Ctrl At Startup |
| System Options |
| Ignore Hardware Serial Number |
| Phantom Devices |
| Foreign Language Support |
| Co-Installer |
| Renaming Driver Files |
| Driver Pre-Installation |
| DPInst Packages |
| Uninstalling Drivers |
| Revision History |
| Disclaimer |
| Contact Information |
| Appendix |
| FTDIBUS.INF |
| FTDIPORT.INF |
| Data Sheets |
| Installation Guides |
| Mac OS X Installation Guide |
| Welcome to the Mac OS X Installation Guide |
| VCP Drivers |
| Installing VCP Drivers |
| Uninstalling VCP Drivers |
| D2XX Drivers |
| Installing D2XX Drivers |
| Uninstalling D2XX Drivers |
| Multiple VIDs/PIDs |
| Configuration Settings |
| VCP Troubleshooting |
| How do I know what my deviceID is? |
| The device does not appear in the /dev directory or the text "New Port Detected" is not displayed in SystemPreferences-Network |
| The device cannot be accessed even though the deviceID is supported in FTDIUSBSerialDriver |
| How do I open a Terminal window? |
| D2XX Troubleshooting |
| I can't open a port even though the installation has been successful |
| After running an application two or three times, communication stops |
| Problems upgrading to the latest D2XX driver |
| Revision History |
| Windows CE Installation Guide |
| Welcome to the Windows CE Installation Guide |
| Installing FT2232C, FT232BM, FT245BM, FT8U232AM and FT8U245AM Devices |
| Installing D2XX Drivers |
| Installing VCP Drivers |
| Troubleshooting |
| "Unidentified USB Device" dialog is not displayed when device is connected for the first time |
| "Error installing USB driver ftdi_d2xx.dll" message |
| "Error installing USB driver ftdi_ser.dll" message |
| "Unidentified USB Device" appears each time the driver name is entered |
| Device can write but cannot read |
| Bytes missing or data corrupt |
| Driver isn't sending or receiving any data |
| Revision History |
| Windows XP Installation Guide |
| Welcome to the Windows XP Installation Guide |
| Installing FTDI Device Drivers |
| Installing CDM Drivers |
| Uninstalling FTDI Devices |
| Uninstalling CDM Drivers |
| Troubleshooting |
| Windows XP cannot find drivers for my device |
| Windows XP forces a reboot after installing a device |
| Driver installation fails and Windows XP gives error code 10 |
| FT232BM or FT245BM device hangs randomly during operation under Windows XP |
| Windows XP displays an error and then terminates installation |
| Revision History |
| Contact Information |
| Disclaimer |
| Windows 2000 Installation Guide |
| Welcome to the Windows 2000 Installation Guide |
| Installing FTDI Device Drivers |
| Installing CDM Drivers via the Found New Hardware Wizard |
| Uninstalling FTDI Devices |
| Uninstalling CDM Drivers |
| Troubleshooting |
| Windows 2000 cannot find drivers for my device |
| Windows 2000 forces a reboot after installing a device |
| Driver installation fails and Windows 2000 gives error code 10 |
| FT232BM or FT245BM device hangs randomly during operation under Windows 2000 |
| Revision History |
| Contact Information |
| Disclaimer |
| Windows 98 Installation Guide |
| Welcome to the Windows 98 Installation Guide |
| Installing FT232BM, FT245BM, FT8U232AM and FT8U245AM Devices |
| Installing D2XX Drivers |
| Installing VCP Drivers |
| Installing FT2232C Devices |
| Installing D2XX Drivers |
| Installing VCP Drivers |
| Uninstalling FT232BM, FT245BM, FT8U232AM and FT8U245AM Devices |
| Uninstalling D2XX Drivers |
| Uninstalling VCP Drivers |
| Uninstalling FT2232C Devices |
| Uninstalling D2XX Drivers |
| Uninstalling VCP Drivers |
| Troubleshooting |
| Windows 98 cannot find drivers for my device |
| Windows 98 forces a reboot after installing a device |
| Driver installation fails and Windows 98 gives error code 10 |
| FT232BM or FT245BM device hangs randomly during operation under Windows 98 |
| Windows 98 complains about missing .CAT files |
| Windows 98 complains about missing ftccomms.vxd file |
| Windows 98 installs FT2232C device as VCP even though D2XX drivers are selected in the EEPROM |
| Revision History |
| Programming Guides |
| D2XX Programmer's Guide |
| Welcome to the FTD2XX Programmer's Guide |
| Classic Interface Functions |
| FT_SetVIDPID |
| FT_GetVIDPID |
| FT_ListDevices |
| FT_Open |
| FT_OpenEx |
| FT_Close |
| FT_Read |
| FT_Write |
| FT_ResetDevice |
| FT_SetBaudRate |
| FT_SetDivisor |
| FT_SetDataCharacteristics |
| FT_SetFlowControl |
| FT_SetDtr |
| FT_ClrDtr |
| FT_SetRts |
| FT_ClrRts |
| FT_GetModemStatus |
| FT_SetChars |
| FT_Purge |
| FT_SetTimeouts |
| FT_GetQueueStatus |
| FT_SetBreakOn |
| FT_SetBreakOff |
| FT_GetStatus |
| FT_SetEventNotification |
| FT_IoCtl |
| FT_SetWaitMask |
| FT_WaitOnMask |
| FT_GetDeviceInfo |
| FT_SetResetPipeRetryCount |
| FT_StopInTask |
| FT_RestartInTask |
| FT_ResetPort |
| FT_CyclePort |
| FT_CreateDeviceInfoList |
| FT_GetDeviceInfoList |
| FT_GetDeviceInfoDetail |
| FT_GetDriverVersion |
| FT_GetLibraryVersion |
| FT_SetDeadmanTimeout |
| EEPROM Programming Interface Functions |
| FT_ReadEE |
| FT_WriteEE |
| FT_EraseEE |
| FT_EE_Read |
| FT_EE_ReadEx |
| FT_EE_Program |
| FT_EE_ProgramEx |
| FT_EE_UARead |
| FT_EE_UAWrite |
| FT_EE_UASize |
| Extended API Functions |
| FT_GetLatencyTimer |
| FT_SetLatencyTimer |
| FT_GetBitMode |
| FT_SetBitMode |
| FT_SetUSBParameters |
| FT-Win32 API Functions |
| FT_W32_CreateFile |
| FT_W32_CloseHandle |
| FT_W32_ReadFile |
| FT_W32_WriteFile |
| FT_W32_GetLastError |
| FT_W32_GetOverlappedResult |
| FT_W32_ClearCommBreak |
| FT_W32_ClearCommError |
| FT_W32_EscapeCommFunction |
| FT_W32_GetCommModemStatus |
| FT_W32_GetCommState |
| FT_W32_GetCommTimeouts |
| FT_W32_PurgeComm |
| FT_W32_SetCommBreak |
| FT_W32_SetCommMask |
| FT_W32_SetCommState |
| FT_W32_SetCommTimeouts |
| FT_W32_SetupComm |
| FT_W32_WaitCommEvent |
| Appendix |
| Type Definitions |
| FTD2XX.H |
| FTCI2C Programmer's Guide |
| Welcome to the FTCI2C Programmer's Guide |
| I2C Interface Functions |
| I2C_GetNumDevices |
| I2C_GetDeviceNameLocID |
| I2C_Open |
| I2C_OpenEx |
| I2C_Close |
| I2C_InitDevice |
| I2C_GetClock |
| I2C_SetClock |
| I2C_SetLoopback |
| I2C_SetMode |
| I2C_Write |
| I2C_Read |
| I2C_GetDllVersion |
| I2C_GetErrorCodeString |
| Appendix |
| Type Definitions |
| FTCI2C.H |
| FTCJTAG Programmer's Guide |
| Welcome to the FTCJTAG Programmer's Guide |
| JTAG Interface Functions |
| JTAG_GetNumDevices |
| JTAG_GetDeviceNameLocID |
| JTAG_Open |
| JTAG_OpenEx |
| JTAG_Close |
| JTAG_InitDevice |
| JTAG_GetClock |
| JTAG_SetClock |
| JTAG_SetLoopback |
| JTAG_GetGPIOs |
| JTAG_SetGPIOs |
| JTAG_Write |
| JTAG_Read |
| JTAG_WriteRead |
| JTAG_GenerateClockPulses |
| JTAG_ClearCmdSequence |
| JTAG_ClearDeviceCmdSequence |
| JTAG_AddWriteCmd |
| JTAG_AddDeviceWriteCmd |
| JTAG_AddReadCmd |
| JTAG_AddDeviceReadCmd |
| JTAG_AddWriteReadCmd |
| JTAG_AddDeviceWriteReadCmd |
| JTAG_ExecuteCmdSequence |
| JTAG_GetDllVersion |
| JTAG_GetErrorCodeString |
| Appendix |
| Type Definitions |
| FTCJTAG.H |
| FTCSPI Programmer's Guide |
| Welcome to the FTCSPI Programmer's Guide |
| SPI Interface Functions |
| SPI_GetNumDevices |
| SPI_GetDeviceNameLocID |
| SPI_Open |
| SPI_OpenEx |
| SPI_Close |
| SPI_InitDevice |
| SPI_GetClock |
| SPI_SetClock |
| SPI_SetLoopback |
| SPI_GetGPIOs |
| SPI_SetGPIOs |
| SPI_Write |
| SPI_Read |
| SPI_ClearDeviceCmdSequence |
| SPI_AddDeviceWriteCmd |
| SPI_AddDeviceReadCmd |
| SPI_ExecuteCmdSequence |
| SPI_GetDllVersion |
| SPI_GetErrorCodeString |
| Appendix |
| Type Definitions |
| FTCSPI.H |
| FTChipID Programmer's Guide |
| Welcome to the FTChipID Programmer's Guide |
| FTChipID Functions |
| FTID_GetNumDevices |
| FTID_GetDeviceSerialNumber |
| FTID_GetDeviceDescription |
| FTID_GetDeviceLocationID |
| FTID_GetDeviceChipID |
| FTID_GetChipIDFromHandle |
| FTID_GetDllVersion |
| FTID_GetErrorCodeString |
| Appendix |
| Type Definitions |
| FTChipID.H |
| Schematics |
| Solder Profiles |
| Utility Manuals |
| MProg |
| MProg Introduction |
| Installing MProg |
| Installing D2XX (CDM) Drivers |
| MProg Basics |
| Modes of Operation |
| Edit Mode Functions |
| Create a New EEPROM Template |
| Modify an Existing EEPROM Template |
| Device EEPROM Parameters |
| Basic Details |
| USB Power Options |
| USB Serial Number Control |
| USB Remote Wake Up |
| Plug & Play (FT232 Series Only) |
| BM/C Device Specific Options |
| FT2232C Device Options |
| FT232R Device Options |
| FT245R Device Options |
| FT2232D Device Options |
| Product and Manufacturer Descriptor Strings |
| Programming Options |
| Program Mode Functions |
| Scan for Devices |
| Erase All Existing Devices |
| Program All Existing Devices |
| Cycle Device |
| Read Devices |
| Read and Parse Devices |
| Appendix |
| Customising FTDI's CDM Drivers |
| Changing the FTDIBUS.INF File |
| Changing the FTDIPORT.INF File |
| Changing the CDM Uninstaller INI Files |
| Uninstalling MProg |
| VPROG |
| VPROG VNC1L Reflasher |
| VPROG VNC1L Reflasher Application |
| VPROG VNC1L Reflasher Hardware Considerations |
| Revision History |
| Contact |
| Disclaimer |
| VPLAY |
| VPLAY Application for VMUSIC |
| VPLAY Application |
| VPLAY Hardware Requirements |
| Revision History |
| Contact |
| Disclaimer |
| Drivers |
| FT232R |
| FT245R |
| FT2232C |
| FT232BM |
| FT245BM |
| FT8U232AM |
| FT8U245AM |
| FT8U100AX |
| Technical Support |
| General |
| Is the FT2232C a replacement for the FT232BM and the FT245BM? |
| Are lead free versions of FTDI devices available? |
| Application Software |
| General |
| Why is my device not detected by FT_ListDevices when a device is connected? |
| Is there a VCP Programmer's Guide? |
| How do I open COM10 or higher under Windows XP? |
| How can I open a port on the FT2232C using D2XX drivers? |
| C++ Builder |
| Why do I get a linker error? |
| LabVIEW |
| Why can't I run the FTDI LabVIEW examples? |
| LabWindows/CVI |
| Why doesn't my LabWindows/CVI project compile? |
| Utilities |
| MProg |
| Why does MProg not detect my device? |
| Where can I get MProg? |
| Drivers |
| General |
| Can I use FTDI's VID for my own product? |
| If I use FTDI's VID, will customers think my device is an FTDI device? |
| Are there drivers for MS-DOS available? |
| Are there drivers for Windows NT available? |
| Why do I get a 30 second delay when booting with FT232/FT245 devices attached? |
| Where can I find ports in the registry? |
| Do FTDI distribute driver source code? |
| Can I make FTDI devices appear as a different device class? |
| How do I enable asynchronous vendor commands? |
| How is the automatic serial number generated? |
| What Baud rates are achieveable? |
| Can I install VCP and D2XX drivers at the same time? |
| Why does my mouse not work when I connect my FTDI based GPS unit? |
| FT2232C |
| Can I set individual descriptors for each channel? |
| Can I use one port in VCP mode and the other in D2XX mode? |
| Why can't I install VCP drivers for my FT2232C? |
| Why can't I install D2XX drivers for my FT2232C? |
| FT232BM |
| Why can't I install D2XX drivers for my FT232BM under Windows XP? |
| FT245BM |
| Why can't I install D2XX drivers for my FT245BM under Windows XP? |
| Hardware |
| General |
| PCB Layout |
| How far can the USB connector be from the FTDI device? |
| Can FTDI devices be powered in a "mixed" mode? |
| What are the trace geometry requirements? |
| Should the 27Ohm series resistors be located next to the IC or the USB connector? |
| How long can my USB cable be? |
| What does the 1.5kOhm resistor on the USB DP line do? |
| Which oscillators/resonators are compatible with the reference designs? |
| Why doesn't my crystal oscillate? |
| Why doesn't my FT232BM/FT245BM work when connected to a USB 2.0 host controller or USB 2.0 hub? |
| Why do I get repeated data when I read from the FT245BM? |
| How can I tell if there is data available to read in the FT245BM? |
| Which EEPROM should I choose for my design? |
| How is the EEPROM data organised? |
| When do FTDI devices read the EEPROM? |
| Is there an IBIS model for FTDI devices? |
| What are the packing, handling and storage instructions for FTDI devices? |
| What is the material content of FTDI devices? |
| Modules |
| Why doesn't my DLP board power-up? |
| The LEDs don't flash on my US232B cable. Is it broken? |
© Future Technology Devices International Ltd. 2006