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Upgrading the Firmware
Updating the CFSound-IV firmware requires installation of a programming utility on a host PC that has a
USB connection. The CFSound is connected to and powered by the PC via a USB A to Micro B cable. The
programming utility detects the presence of the CFSound-IV and sends commands to erase and reprogram its
flash memory with the new firmware.
1)
Obtain the Renesas Flash Development Toolkit (FDT) and install it on the host PC that you will be
using to update the firmware. A version of this tool is available in the Software section of the ACS
CFSound website.
2)
Download and save the desired firmware version from the ACS website into a folder on your PC.
3)
Disconnect the CFSound-IV from any power, serial, USB or Ethernet connections.
4)
Install the BOOT jumper on the CFSound-IV by moving it from the storage to BOOT position.
5)
Double-click on the downloaded firmware CFSound.fpf4 file to open it in the FDT utility:
6)
If you have already updated once on this machine you will get a message box asking for permission
to overwrite – click Yes:
7)
The main FDT program dialog should appear showing the project as CFSound: