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Serial Triggering and Analysis Applications Datasheet
SR-AERO, SR-AUTO, SR-COMP, and SR-EMBD
SR-AERO, SR-AUTO, SR-COMP, and SR-EMBD
Features & Benefits
- Automated Serial Triggering and Decode Options for I2C, SPI, CAN, LIN, FlexRay, MIL-STD-1553, and RS-232/422/485/UART*1
- Trigger on all the critical elements of a serial bus such as address, data, etc.
- Decode all the critical elements of each message. No more counting 1s and 0s!
- Search through long acquisitions with user-defined criteria to find specific messages
- Event Table shows decoded serial bus activity in a tabular, time-stamped format for quick summary of system activity
*1USB, Ethernet, and MIPI® D-PHY support information available in separate data sheets.
Serial Triggering and Analysis Applications
On a serial bus, a single signal often includes address, control, data, and clock information. This can make isolating events of interest difficult. The Serial Applications for the MSO/DPO5000, DPO7000C, and DPO/DSA/MSO70000C/D Series transform the oscilloscopes into a robust tool for debugging serial buses with automatic trigger and decode for I2C, SPI, CAN, LIN, FlexRay, MIL-STD-1553, and RS-232/422/485/UART.
Serial Triggering
Triggering on a specific address on an I2C bus. A complete set of triggers, including triggers for specific address and data packet content, ensures you quickly capture your event of interest.
Trigger on packet content such as start of packet, specific addresses, specific data content, unique identifiers, etc. on popular serial interfaces such as I2C, SPI, CAN, LIN, FlexRay, MIL-STD-1553, and RS-232/422/485/UART.
Bus Display
Color-coded display of I2C bus, showing Start, Address, Data, and Stop components of the serial signal.
Provides a higher-level, combined view of the individual signals (clock, data, chip enable, etc.) that make up your bus, making it easy to identify where packets begin and end and identifying subpacket components such as address, data, errors, etc.
Bus Decoding
Decoded display of SPI bus, automatically displaying bus content in any of several digital formats.
Tired of having to visually inspect the waveform to count clocks, determine if each bit is a 1 or a 0, combine bits into bytes, and determine the hex value? Let the oscilloscope with a serial application do it for you! Once you’ve set up a bus, the MSO/DPO5000, DPO7000C, and DPO/DSA/MSO70000C/D Series will decode each packet on the bus, and display the value in hex, binary, or ASCII (RS-232/422/485/UART only) in the bus waveform.
Event Table
Event Table display of bus content, with time stamp information for each packet.
In addition to seeing decoded packet data on the bus waveform itself, you can view all captured packets in a tabular view much like you would see in a software listing. Packets are time stamped and listed consecutively with columns for each component (Address, Data, etc.).
Search
Serial Search display showing every occurrence of the specified serial event.
Serial triggering is very useful for isolating the event of interest, but once you’ve captured it and need to analyze the surrounding data, what do you do? In the past, users had to manually scroll through the waveform counting and converting bits and looking for what caused the event. With a Serial Application, you can enable the MSO/DPO5000, DPO7000C, or DPO/DSA/MSO70000C/D Series oscilloscope to automatically search through the acquired data for user-defined criteria including serial packet content. Each occurrence is highlighted by a search mark. Rapid navigation between marks is as simple as pressing the Previous (←) and Next (→) buttons on the oscilloscope front panel.
Characteristics
I2C Characteristics
Bus Setup Options
Characteristic | Description |
|---|---|
I2C Sources (Clock and Data) | Analog channels 1-4 Math channels 1-4 Digital channels D0 - D15 (MSO models only) |
Thresholds | Per-channel thresholds |
Recommended Probing | Single ended |
Include R/W in Address | Yes or No |
Address/Data Formats Available | Hex Binary |
Display Modes | |
Bus | Bus only |
Bus and Waveforms | Simultaneous display of bus and digital waveforms |
Event Table | Decoded packet data in a tabular view |
Bus Trigger and Search Options
Characteristic | Description |
|---|---|
Trigger and/or Search On | Start Stop Repeated Start Missing Ack Address (7 or 10 bit) Data (1-5 bytes) Address and Data |
Bus Decode
Characteristic | Description |
|---|---|
Maximum Clock/Data Rate | Up to 10 Mb/s (automatic selection) |
Decode Display | Start (green bar) Address (yellow packet) Missing Ack (! symbol) Data (cyan packet) Stop (red bar) |
I2C bus setup, showing assignment of source signals and digital thresholds.
Color-coded I2C bus display, using hexadecimal display format.
Triggering on a specific address value on the I2C bus.
SPI Characteristics
Bus Setup Options
Characteristic | Description |
|---|---|
SPI Sources (Clock, Data, and Slave Select) | Analog channels 1-4 Math channels 1-4 Digital channels D0 - D15 (MSO models only) |
Thresholds | Per-channel thresholds |
Recommended Probing | Single ended |
Decode Configuration | |
Framing | Idle Time (2-wire SPI) Slave Select (3-wire SPI) |
Clock | Rising or Falling Edge |
Slave Select | Active High or Active Low |
Data | Active High or Active Low |
Word Size | 4 - 32 bits |
Bit Order | Most Significant (MS) First Least Significant (LS) First |
Formats Available | Hex Binary |
Display Modes | |
Bus | Bus only |
Bus and Waveforms | Simultaneous display of bus and digital waveforms |
Event Table | Decoded packet data in a tabular view |
Bus Trigger and Search Options
Characteristic | Description |
|---|---|
Trigger and/or Search On | SS Data (1 - 16 bytes) |
Bus Decode
Characteristic | Description |
|---|---|
Maximum Clock/Data Rate | Up to 10 Mb/s (automatic selection) |
Decode Display | Start (green bar) Data (cyan packet) Stop (red bar) |
SPI bus setup, showing assignment of source signals and digital thresholds.
Color-coded SPI bus display, showing binary display format.
Triggering on a specific data value on the SPI bus.
CAN Characteristics
Bus Setup Options
Characteristic | Description |
|---|---|
Source for CAN_H, CAN_L, Rx, or Tx Probing | Analog channels 1-4 Math channels 1-4 Digital channels D0 - D15 (MSO models only) |
Source for Differential Probing | Analog channels 1-4 Math channels 1-4 |
Thresholds | Per-channel thresholds |
Recommended Probing | |
CAN_H, CAN_L, Rx, Tx | Single ended |
Differential | Differential |
Bit Rate | |
Predefined list of rates | 10 Kb/s - 1 Mb/s |
Custom | 10 Kb/s - 1 Mb/s |
Sample Point | 50% of bit period or unit interval |
Formats Available | Hex Binary |
Display Modes | |
Bus | Bus only |
Bus and Waveforms | Simultaneous display of bus and digital waveforms |
Event Table | Decoded packet data in a tabular view |
Bus Trigger and Search Options
Characteristic | Description |
|---|---|
Trigger and/or Search On | Start of Frame Type of Frame (Data, Remote, Error, Overload) Identifier (Standard or Extended) Data (number of bytes 1-8, trigger or search when =, !=, <, >, <=, >=) Identifier and Data EOF Missing Ack Bit Stuff Error |
Bus Decode
Characteristic | Description |
|---|---|
Maximum Clock/Data Rate | Up to 1 Mb/s (for automated decoding of bus) |
Decode Display | Start (green bar) Identifier (yellow packet) DLC, CRC (blue packet) Missing Ack (red ! symbol) Data (cyan packet) Stop (red bar) Errors (red packet) |
CAN bus setup, showing assignment of source, threshold, and bit rate.
Triggering on a specific ID and data value on the CAN bus.
Protocol Decode Event Table provides a time-stamped, tabular view of all captured packets on the CAN bus.
LIN Characteristics
Bus Setup Options
Characteristic | Description |
|---|---|
LIN Source | Analog channels 1-4 Math channels 1-4 Digital channels D0 - D15 (MSO models only) |
Thresholds | Per-channel thresholds |
Recommended Probing | Single ended |
Polarity | Normal Inverted |
Bit Rate | |
Predefined list of rates | 1.2 Kb/s - 19.2 Kb/s |
Custom | 800 b/s - 100 Kb/s |
Sample Point | 50% of bit period or unit interval |
LIN Standard | V 1.x V 2.x Both |
Include Parity Bits with ID | Yes No |
Formats Available | Decimal: ID and Parity; Hex: Data and Checksum Binary |
Display Modes | |
Bus | Bus only |
Bus and Waveforms | Simultaneous display of bus and digital waveforms |
Event Table | Decoded packet data in a tabular view |
Bus Trigger and Search Options
Characteristic | Description |
|---|---|
Trigger and/or Search On | Sync Identifier Data (number of bytes 1-8, trigger or search when =, !=, <, >, <=, >=, Inside Range, Outside Range) ID and Data Wakeup Frame Sleep Frame Error (Sync, ID Parity, Checksum) |
Bit Rate | 800 b/s - 19.2 Kb/s |
Bus Decode
Characteristic | Description |
|---|---|
Maximum Clock/Data Rate | Up to 100 Kb/s, by LIN definition up to 20 Kb/s (for automated decoding of bus) |
Decode Display | Start (green bar) Sync, Break (blue packet) Identifier, Parity (yellow packet) Data (cyan packet) Checksum, Wakeup (blue packet) End of Frame (red bar) Errors (red packet) - Sync - Parity - Checksum - Header Time - Response Time - Frame Time - Response and Frame Time |
LIN bus setup, showing assignment of source, thresholds, standard, and bit rate.
LIN bus trigger setup, capturing a specified data value.
Protocol Decode Event Table provides a time-stamped, tabular view of all captured LIN packets.
FlexRay Characteristics
Bus Setup Options
Characteristic | Description |
|---|---|
Source for Differential Probing (Bdiff) | Analog channels 1-4 Math channels 1-4 |
Source for Single-ended Probing (BP, BM) | Analog channels 1-4 Math channels 1-4 Digital channels D0 - D15 (MSO models only) |
Source for Single-ended Probing (Tx, Rx) | Analog channels 1-4 Math channels 1-4 Digital channels D0 - D15 (MSO models only) |
Thresholds | |
Bdiff | High and Low thresholds |
BP, BM (analog and math channels) | High and Low thresholds |
BP, BM (digital channels) | Single threshold |
Tx, Rx | Single threshold |
Recommended Probing | |
Bdiff, BP, BM | Differential |
Rx, Tx | Single ended |
Channel Type | A or B |
Bit Rate | |
Predefined list of rates | 2.5 Mb/s, 5 Mb/s, 10 Mb/s |
Custom | 1 Mb/s - 10 Mb/s |
Formats Available | Hex Binary Mixed (Decimal: ID, Len, and Count; Hex: CRCs and Data) |
Display Modes | |
Bus | Bus only |
Bus and Waveforms | Simultaneous display of bus and digital waveforms |
Event Table | Decoded packet data in a tabular view |
Bus Trigger and Search Options
Characteristic | Description |
|---|---|
Trigger and/or Search On | Start of Frame Indicator Bits (Normal, Payload, Null, Sync, Startup) Cycle Count (when =, !=, <, >, <=, >=) Header Fields (Indicator Bits, Identifier, Payload Length, Header CRC, and Cycle Count) Identifier (when =, !=, <, >, <=, >=) Data (when =, !=, <, >, <=, >=) Identifier and Data End Of Frame (Static, Dynamic) Error (Header CRC, Trailer CRC, NULL Frame in Static, NULL Frame in Dynamic, Sync Frame in Dynamic, Start Frame No Sync) |
Bus Decode
Characteristic | Description |
|---|---|
Maximum Clock/Data Rate | Up to 10 Mb/s (for automated decoding of bus) |
Decode Display | TTS (purple box) Start (green bracket) Frame ID (yellow box) Payload Length (purple box) Headers (purple box) - Null - Normal - Sync - Payload - Startup - Unknown - Null Sync - Payload Sync - Null Startup - Payload Startup - CRC Cycle Count (yellow box) Data (cyan box) CRC, DTS, CID (purple box) Stop (red bracket) - TSS - Header CRC - Trailer CRC - Null Frame - Sync Frame - Startup Frame - BSS - FSS |
FlexRay bus setup, showing assignment of source, threshold, and bit rate.
Triggering on a specific Identifier value on the FlexRay bus.
Protocol Decode Event Table provides a time-stamped, tabular view of all captured packets on the FlexRay bus.
MIL-STD-1553 Characteristics
Bus Setup Options
Characteristic | Description |
|---|---|
Source | Analog channels 1-4 Math channels 1-4 |
Thresholds | High and Low thresholds |
Recommended Probing | Differential or Single-ended (only one single-ended signal required) |
Polarity | Normal or Inverted |
Bit Rate | 1 Mb/s, per the standard |
Formats Available | Hex Binary Mixed: Hex (data), Decimal (addresses and count) |
Display Modes | |
Bus | Bus only |
Bus and Waveforms | Simultaneous display of bus and digital waveforms |
Event Table | Decoded packet data in a tabular view |
Bus Trigger and Search Options
Characteristic | Description |
|---|---|
Trigger and/or Search On | Sync Command Word*2 (set RT Address (=, !=, <, >, <=, >=), T/R, Sub-address/Mode, Data Word Count/Mode Code, and Parity individually) Status Word*2 (set RT Address (=, !=, <, >, <=, >=), Message Error, Instrumentation, Service Request Bit, Broadcast Command Received, Busy, Subsystem Flag, Dynamic Bus Control Acceptance (DBCA), Terminal Flag, and Parity individually) Data Word (user-specified 16-bit data and parity values) Idle Time (minimum time selectable from 2 µs to 100 µs; maximum time selectable from 2 µs to 100 µs; trigger on < minimum, > maximum, inside range, outside range) Error (Sync, Parity, Manchester, Noncontiguous Data) |
Bus Decode
Characteristic | Description |
|---|---|
Maximum Clock/Data Rate | Up to 1 Mb/s (for automated decoding of bus) |
Decode Display | Start (green bar) Sync*3 (purple box) with Word Type (Command, Status, Data) identified Address (yellow box) R/T (purple box) Word Count (purple box) Status Bits (purple box) Data (cyan box) Parity (purple box) Stop (red bar) Errors (red box) |
*2 Trigger selection of Command Word will trigger on Command and ambiguous Command/Status words. Trigger selection of Status Word will trigger on Status and ambiguous Command/Status words.
*3 Ambiguous Command and Status words will be labeled with C/S and a generic bit decode will be displayed.
MIL-1553 bus setup, showing dual threshold settings.
Triggering on a specific data value on the MIL-STD-1553 bus.
Protocol Decode Event Table for MIL-STD-1553 bus with all captured packets time stamped and in a tabular view.
RS-232/422/485/UART Characteristics
Bus Setup Options
Characteristic | Description |
|---|---|
Sources | |
RS-232 UART | Analog channels 1-4 Math channels 1-4 Digital channels D0 - D15 (MSO models only) |
RS-422 RS-485 | Analog channels 1-4 Math channels 1-4 |
Polarity | Normal (RS-232) Inverted (UART, RS-422/RS-485) |
Recommended Probing | RS-232/UART: Single ended RS-422/RS-485: Differential |
Number of Bits | 7 - 9 |
Address/Data Formats Available | Hex Binary ASCII Packet View |
Display Modes | |
Bus | Bus only |
Bus and Waveforms | Simultaneous display of bus and digital waveforms |
Event Table | Decoded packet data in a tabular view |
Bus Trigger and Search Options
Characteristic | Description |
|---|---|
Trigger and/or Search On | Start End of Packet Data (1 - 5 bytes) Parity Error |
Bus Decode
Characteristic | Description |
|---|---|
Maximum Bit Rate | Up to 10 Mb/s (automatic selection) |
Bit Rate Selections | 50 b/s 300 b/s 1200 b/s 2,400 b/s 9,600 b/s 19,200 b/s 38,400 b/s 115,200 b/s 921,600 b/s 10,000,000 b/s Custom (50 b/s - 10 Mb/s) |
Decode Display | Data (cyan packet) Errors (red packet) |
RS-232 bus setup, showing assignment of source signal, digital threshold, and polarity.
Color-coded RS-232 bus display, showing ASCII display format.
Triggering on a start of packet on the RS-232 bus.
Ordering Information
Optional Applications
Serial Bus | MSO/DPO5000, DPO7000C, and DPO/DSA/MSO70000C/D Series Option*4 | Description |
|---|---|---|
I2C, SPI | SR-EMBD | Embedded Serial Triggering and Analysis (I2C, SPI). Enables triggering on packet-level information on I2C and SPI buses as well as analytical tools such as digital views of the signal, bus views, packet decoding, search tools, and packet decode tables with time stamp information. |
MIL-STD-1553 | SR-AERO | Aerospace Serial Triggering and Analysis (MIL-STD-1553). Enables triggering on packet-level information on MIL-STD-1553 buses as well as analytical tools such as digital views of the signal, bus views, packet decoding, search tools, and packet decode tables with time stamp information. |
CAN/LIN/FlexRay | SR-AUTO | Automotive Serial Triggering and Analysis (CAN/LIN/FlexRay). Enables triggering on packet-level information on CAN/LIN/FlexRay buses as well as analytical tools such as digital views of the signal, bus views, packet decoding, search tools, and packet decode tables with time stamp information. |
RS-232/422/485/UART | SR-COMP | Computer Serial Triggering and Analysis (RS-232/422/485/UART). Enables triggering on packet-level information on RS-232/422/485/UART buses as well as analytical tools such as digital views of the signal, bus views, packet decoding, search tools, and packet decode tables with time stamp information. |
*4 USB, Ethernet, and MIPI® D-PHY options also available.
Note: Serial Triggering and Analysis application software does not operate on earlier versions of the DPO7000, DPO/DSA70000, or DPO/DSA70000B Series oscilloscopes.
To upgrade an existing*5 MSO/DPO5000, DPO7000C, or DPO/DSA/MSO70000C/D Series
Serial Bus | Order |
|---|---|
I2C, SPI | DPO-UP Option SR-EMBD |
CAN, LIN, FlexRay | DPO-UP Option SR-AUTO |
MIL-STD-1553 | DPO-UP Option SR-AERO |
RS-232/422/485/UART | DPO-UP Option SR-COMP |
Note: Software is supplied on the internal hard drive of the MSO/DPO5000, DPO7000C, and DPO/DSA/MSO70000C/D Series oscilloscopes. User documentation (online or user manual) is part of the oscilloscope documentation.
To order a floating license for an existing*5 MSO/DPO5000, DPO7000C, or DPO/DSA/MSO70000C/D Series
Serial Bus | Order |
|---|---|
I2C, SPI | DPOFL-SR-EMBD |
CAN, LIN, FlexRay | DPOFL-SR-AUTO |
MIL-STD-1553 | DPOFL-SR-AERO |
RS-232/422/485/UART | DPOFL-SR-COMP |
*5 Also update oscilloscope firmware to latest version, available for free download from www.tektronix.com.
Recommended Probes
Please refer to www.tek.com/probes for further information on the recommended models of probes and any necessary probe adapters. |
Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar.
48W-26149-5
