 |
|
|
RENESAS TOOL NEWS on May 1, 2004: RSO-E7_1-040501D
A Note on Using
the Tiny/SLP E7 Emulator Software
--On Single-Step Program Execution--
|
|---|
Please take note of the following problem in using the Tiny/SLP E7 Emulator
Software:
- On single-step program execution
- Versions Concerned
Tiny/SLP E7 Emulator Software V.2.0.01, V.2.0.02, V.2.1.00 and V.2.3.01
- Description
When the instructions listed in the table below exist in the program
of an MCU belonging to the R8C/Tiny series, the problems in the right
column arise if these instructions are step-executed.
| Instruction |
Problem |
PUSHC FLG
(Save the flag register) |
The IPL (processor interrupt priority level) of the flag register restored by POPC FLG goes to 0. |
LDC src,FLG
(Load src data
to the flag register) |
The I flag of the flag register may not be cleared. |
STC FLG,dest
(Store the contents of
the flag register to dest) |
Bit 6 of the flag register is always set to 0 and bit 1 always to 1. |
- Workaround
Don't perform the following setting and execution for the above instructions:
- Setting hardware and software breakpoints
- Executing step-in, step-over, and step-out operations
- Schedule of Fixing the Problem
We plan to fix this problem in our next release of the products.
|
|
