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RENESAS TOOL NEWS on April 1, 2005: RSO-E200F_2-050401D
A Note on Using
the E200F and E10A-USB Emulators
for the SH-2A Series of MCUs
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Please take note of the problem shown below in using the E200F and E10A-USB
Emulators, which are used for specific groups in the SuperH RISC engine family of MCUs.
- Products Concerned
E200F and E10A-USB emulators
for the SH7206 group, SH7200 series, SuperH RISC engine family
Product Types:
| Product |
Product types |
| E200F |
R0E0200F1EMU00 |
| E10A-USB |
HS0005KCU01H (Without AUD)
HS0005KCU02H (With AUD) |
- Problem
If the event for a PC breakpoint takes place to halt the program, the value loaded in the R0 register may become incorrect.
- Workaround
Don't use PC breakpoints but use hardware breakpoints as explained
below. The hardware breakpoint can halt the program immediately
before executing the instruction at the address at which a breakpoint
is set, as well as the PC breakpoint.
In the E200F:
Use the "Prefetch address break before executing" condition of the On Chip Event hardware breakpoint.
In the E10A-USB:
Use the "Prefetch address break before executing" condition of the Event Condition hardware breakpoint.
To set the two types of hardware breakpoint mentioned above,
double-click the On Chip Event column in the Editor or Disassemble
window the same way as for the PC breakpoint.
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