Renesas User System Interface Board HS7047ECH61H Manual de usuario descargar pdf (Pagina 123)

3.7 Using the Event Points

The emulator has the event point function to support breakpoints of the following three types.

Software breakpoints: Execution of the user program stops when the instruction at the specified address is

fetched. Up to 255 software breakpoints can be set. Any content at the specified address is replaced by a break

instruction (a dedicated instruction for use with the emulator). The software breakpoint cannot be set in the

write-protected area such as ROM area or flash memory area on the user system. The user can set a software

breakpoint in the [Editor] or [Disassembly] window.

On-chip breakpoints: These break functions built in the MCU. Conditions on the address bus, data bus,

bus/area, and satisfaction count can be set. The on-chip breakpoint can be set even in the ROM area or flash

memory area on the user system. It is also possible to set a sequential breakpoint consisted of several on-chip

breakpoints. The user can set an on-chip breakpoint in the [Editor] or [Disassembly] window.

On-emulator breakpoints: On-emulator break functions are implemented by dedicated hardware in the

E6000H station. Conditions on the address bus, data bus, bus/area, external probe signals, external interrupt

signals, and satisfaction count can be set. As the emulator hardware provides this function, several cycles may be

required until a break occurs after satisfaction of a condition.

Software, on-chip, and on-emulator breakpoints can be set in the [Event] window.

Select [View -> Code -> Eventpoints] or click the [Eventpoints] toolbar button (

) to open the [Event] window.

Figure 3.19 [Event] Window

The [Event] window has the following three sheets:

[Software] sheet: Displays the settings made for software breakpoints. It is also possible to set, modify,

and cancel software breakpoints.

[On Chip] sheet: Displays or sets on-chip breakpoints.

[On Emulator] sheet: Displays or sets on-emulator breakpoints.

Note: For notes on event points, refer o section 5.5, Event Functions.

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Renesas User System Interface Board HS7047ECH61H Manual de usuario Pagina 123