1. Product and Version Concerned
The E8 emulator software V.2.09 Release 00
2. Description
When user programs are downloaded to target MCUs using the R8C/Tiny E8
emulator debugger, which is included in the product, "Communication Timeout
Errors" may arise.
3. Conditions
This problem arises if the following conditions are all satisfied:
(1) The R8C/Tiny E8 emulator debugger V.2.05.00, which is included in
the product concerned is used.
To see the version number of your emulator debugger, perform the
following steps:
(a) In the High-performance Embedded Workshop, open the Tool menu
and select the Administration command. The Administration
dialog box appears, showing you the Registered Components
list box.
(b) Read the version number of the component "R8C E8 SYSTEM" in
the Debugger Components folder, which is displayed in the
above list box. The version number of the product concerned
is "2.05.00".
(2) Any of the following MCUs in the R8C/Tiny series is targeted:
- R5F21206, R5F21207, and R5F21208 MCUs; R8C/20 group
- R5F21216, R5F21217, and R5F21218 MCUs; R8C/21 group
- R5F21226, R5F21227, and R5F21228 MCUs; R8C/22 group
- R5F21236, R5F21237, and R5F21238 MCUs; R8C/23 group
- R5F21244, R5F21245, R5F21246, R5F21247, and R5F21248 MCUs;
R8C/24 group
- R5F21254, R5F21255, R5F21256, R5F21257, and R5F21258 MCUs;
R8C/25 group
- R5F21262, R5F21264, R5F21265, and R5F21266 MCUs; R8C/26 group
- R5F21272, R5F21274, R5F21275, and R5F21276 MCUs; R8C/27 group
- R5F21282 and R5F21284 MCUs; R8C/28 group
- R5F21292 and R5F21294 MCUs; R8C/29 group
(3) The E8 emulator is connected to the PC using a hub based on
USB 2.0 standards. Depending on PCs, the problem may occurs
if no hub is used.
4. Workarounds
When you are using a hub based on USB 2.0 standards, remove the hub
to connect the E8 directly to the PC.
If the problem is still not resolved, replace your emulator software
with the previous version, V.2.08 Release 00.
5. Schedule of Fixing the Problem
We are releasing the problem-fixed version of the product before long.
