Freescale Semiconductor MMDS0508 manual Counted Modes, Triggered Modes/Sequential Event Mode

Page 43

Freescale Semiconductor, Inc.

MMDS Target Component

4.10 Bus Analyzer

4.10.2.4.2 Continuous: Events Only

Stores all the events that you defined in the Triggers page.

4.10.2.5 Counted Modes

In counted modes, data collection stops when the analyzer collects the specified number of frames.

4.10.2.5.1 Counted: All Cycles

Records a specified number of cycles; you can trace that many cycles, of all types.

4.10.2.5.2 Counted: Events Only

Stores all events until it reaches the specified count. Then data collection stops.

4.10.2.6 Triggered Modes/Sequential Event Mode

In triggered modes, the analyzer uses term definitions to track event occurrence, then stop data collection according to some combination of the events. Each term has an associated Pre Event count that counts events for that term. The sequencer condition includes that term, once the count reaches the pre-event count.

The sequencer trigger includes as many as four events, in one of four sequences. Each event has a specified count; each trigger requires that specified count for each event. Each count is a minimum: the event can occur additional times. An event is a pattern of bus signals (which can include address and data values) that logic clips and miscellaneous MCU signals connect to the analyzer. Alternatively, an event can be the negation of a defined pattern. You can define each signal to be asserted, negated, or ignored (don't care).

The sequences are:

4.10.2.6.1 Sequential: A + B + C + D

Select this option to start bus-analyser recording after any event occurs: A, B, C, or D. Data storage ends after the specified number of post-trigger cycles.

4.10.2.6.2 Sequential: A -> B -> C, D<-

Select this option to start bus-analyser recording as soon as events A, B, and C occur, in that order. But if event D occurs before event C, the analyzer must start the whole sequence again with event A. Data storage ends after the specified number of post- trigger cycles. This mode is a simple, three-event sequence, if you do not define an event D.

MMDS0508 Target Interface

4–43

For More Information: www.freescale.com

Image 43
Contents Freescale Semiconductor, Inc MMDS0508 Target InterfaceHow to Contact Metrowerks Table of Contents Appendix Introduction Mmds FeaturesSystem Components Freescale Semiconductor, Inc System Components MMDS0508 Target Interface Installation M68MMDS0508 Station Module Right Side Factory Test Header J1 Configuring the Platform BoardFactory Test Header J1 Port Voltage Control Headers J2-J4Removing the EM Installing the EMHost Computer Connection Making Cable ConnectionsBus State Analyzer Connection Target Cable Connection Power ConnectionMaking Cable Connections MMDS0508 Target Interface RS232 Serial Connector Reset SwitchSerial Connector and Cable Pin Assignments Logic Cables and ConnectorsPod and Logic Cable Pin Assignments Power Switch/Connector Assembly Power Supply Fuse ReplacementFreescale Semiconductor, Inc Power Supply Fuse Replacement MMDS0508 Target Interface Mmds Target Component General ConfigurationMMDS0508 Interfacing Your System and the Target Definitions, Acronyms and AbbreviationsHardware connection Loading the MMDS0508 TargetLoading MotoSIL Target Communication ConfigurationMotoSIL Communication Configuration Communication Device SpecificationMMDS0508 Menu Entries Debugger Status Bar forData Format Communication Communication Baud RateMaximum Baud Rate Memory ConfigurationShow Protocol 0nnnnVxx.MEM Personality .MEM Files12 Error Message Dual-Port RAM Signals EmulationMemory Bus Tracing ResetMCU Clock Motorola ESL Parameters Default Target SetupComdev Showprot Bus AnalyzerIntroduction to the Bus Analyzer BaudrateTrace Buffer Using the Bus AnalyzerWatchpoints Trace Modes15 Bus Analyzer Trace window popup menu17 Bus Analyzer Trigger Setup Trigger SetupSequencer Setup Continuous All Cycles Non-Triggered ModesCounted Modes Triggered Modes/Sequential Event ModeCounted/Sequential Recording Mode Clock Frequency Time Tag Clock SetupCollecting Data View Cycles Viewing Collected DataRecording Bus Data Trigger EventEvents Textual DisplayTime Measuring Control SignalsInstructions Only Display Time TagZoom In or Out Graphical Display22 Trace Zoom Display Add / Remove Items in the Trace Window ShowLocationSearch for a Frame Scrolling the DisplayBackward Search for EventsOK Button ForwardPrevious Event Search for a PatternNext Pattern Cancel ButtonPrevious Pattern Dump File Dumping the Bus analyzer data to a file31 Analyzer Dump Only Frame Syntax Mmds CommandsBaud Rate Command Short DescriptionTrigger Commands Set trigger Data RED ORG YEL GRN Examples Disables triggers a and B Bus Analyzer Commands Darm GP B Log trace Open the logging file Sets the 8 Mhz oscillator as the time tag clock source Address SP 8 Set sequencer Display time tag difference VA MODE=MIX INS Graph Reset Commands Target Signal Emulation CommandsOther Commands MEM OSC Protocol Disables the real time memory block Index IDX-84 MMDS0508 Target Interface IDX-85 IDX-86