R0E00008AKCE00EP52 Datasheet, PDF (39/43 Pages) Renesas Technology Corp – Microcomputer Development Environment System

E8a Emulator
6. Notes on Using the E8a Emulator
6.6 Debug functions
(1) Memory access during user program execution
When referring to or modifying the memory contents, the user program is temporarily halted. For this reason, a real-time
emulation cannot be performed.
When a real-time emulation is necessary during a program execution, disable the automatic update in the watch window or
fix the display in the memory window before running the program so that memory accesses do not occur during an execution.
(2) Setting of address match break during user program execution
When adding or cancelling the address match break, the user program is temporarily halted. For this reason, a real-time
emulation cannot be performed.
(3) PC break point
When downloading a user program after modifying it, the set address of PC break may not be corrected normally depending
on the modification. Therefore, break points other than the set PC breaks may shift. After downloading a user program, check
the setting of PC breaks in the event point window and reset it.
If a low-speed clock such as the sub clock is used as the operation clock of the MCU, setting or canceling PC breaks may take
time. Use event breaks as the first choice.
(4) “Go to cursor” function
The “Go to cursor” function is actualized using an address match break. Therefore, when you execute the “Go to cursor”
command, all the address match breaks and hardware breaks you set become invalid, while all the PC breaks remain valid.
(5) Debugging in stop mode or wait mode
When debugging in stop mode or wait mode, do not operate windows until the program stops at the breakpoint by setting the
breakpoint at the line of the program which will be executed after the stop mode or wait mode is cancelled. In addition,
disable the automatic update in the watch window or fix the display in the memory window before running the program so
memory accesses do not occur during an execution.
When the program is forcibly stopped or when the memory is referred to or modified in stop mode or wait mode, these mode
will be cancelled.
(6) Low power consumption mode
When debugging in low power consumption mode, do not operate windows until the program stops at the breakpoint by
setting the breakpoint at the line of the program which will be executed after the low power consumption mod is cancelled.
(7) Debugging the E²PROM emulation data flash area
This software does not support the following function.
- Reference and setting of E²PROM emulation data flash area by emulator commands
REJ10J1877-0201 Rev.2.01 Jun. 26, 2009
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