Using the Bus State Analyzer
Using the Bus State Analyzer
sequential mode, this field specifies the number of cycles to be stored after the trigger
sequence occurs.
Time Tag Clock Frequency
An optional part of analyzer setup is specifying the frequency and source of the time tag
clock. This clock provides a time reference value in each frame of the trace buffer. To
select the clock frequency, see “Defining Events” on page 68.
You can select from the following frequencies:
? 32 Mhz Selects the 32 MHz oscillator.
? 16 Mhz Selects the 16 MHz oscillator.
? 8 Mhz Selects the 8 MHz oscillator.
? 4 Mhz Selects the 4 MHz oscillator.
? 2 Mhz Selects the 2 MHz oscillator.
? 1 Mhz Selects the 1 MHz oscillator.
? External Selects the external clock
? Custom selects the programmable clock.
? Bus Clock selects the emulator clock, the bus clock of the emulating MCU.
If you select External, make sure to connect the TT_OSC clip (white) of the pod B cable to
the external clock source.
NOTE
If you specify a custom clock speed, be aware that the FSICEBASE can
provide clock speeds from 4100Hz to 40MHz in steps of 5kHz. The
FSICEBASE uses a clock synthesis chip to generate the clock speed. This
method is not as accurate as a crystal: only within about 0.75% absolute
frequency with about 5% jitter. If you choose a clock value (either from one of
the radio buttons or by typing it in) that is an integer divisor of 32MHz, you
will get an accurate crystal-sourced clock.
Collecting Bus Data
To instruct the Bus State Analyzer (BSA) to start collecting data:
1. From debugger main menu, select FSCICEBASE-HC08
2. Select Arm Trace — the BSA begins to collect data when the debugger starts
execution of the loaded application, depending on the triggering mode. The BSA uses
the events that you defined in the Bus State Analyzer Configuration dialog box.
Freescale In-Circuit Emulator Base User Manual, Rev. 1.1
72
Freescale Semiconductor
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FSICEKITGRGZ 功能描述:仿真器/模拟器 FSICE EMULATOR KIT FOR 9 RoHS:否 制造商:Blackhawk 产品:System Trace Emulators 工具用于评估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2
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