Freescale Semiconductor Microcontrollers Collecting Bus Data, Viewing Data

HC08 FSICEBASE Emulator
Bus State Analyzer (BSA)
426 Microcontrollers Debugger Manual
• 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 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. The BSA uses the events that you defined in the
Bus State Analyzer Configuration dialog box.
Viewing Data
You can view the data collected by the BSA in several formats. You can view: raw data,
disassembled instructions, mixed raw data and disassembled instructions, and source
code.
To view data:
1. From debugger main menu, select FSCICEBASE-HC08
2. Select Trace — the Trace window opens (Figure 17.11)
Figure 17.11 Debugger Trace Window