Loading New Firmware Using TRU
P/N 7010-1004
5-21
3. Any activity on the RS232 port turns on the receiver.
Loading New Firmware Using
TRU
Receiver board firmware is released as a compressed file that the user
download and decompress. This file contains the following three
files:
• ramimage.ldr – the Receiver board RAM file
• main.ldp – the Receiver board Flash file
• powbrd.ldr – the Power board RAM file
To upload firmware files to GR-5 receiver, follow the steps below:
1. Connect the receiver to a computer. Open TRU. See “Connecting
the Receiver and a Computer” on page 2-21 for this procedure.
2. Click icon in the main window. The Upload Firmware
dialog box displays. This dialog allows the user to upload
firmware files to the connected receiver.
3. Select “Receiver/modem” in the Device type field.
4. Set the Capture Method to “Soft Break” (recommended)
If the user presses the power key for more than 9
seconds, the pressure is ignored by the GR-5. This
operation protects the receiver from stuck keys.