PowerTap Pro - Manual (Page 38)

38
TROUBLE SHOOTING
3. Next insert the Powertap CPU into the download cradle. When you attach the Power-Tap computer to the download link cradle its display must go blank. If it does not, make sure the Powertap
computer is fully seated to the cradle.
4. Type a capital "R" and you should get something like: RR 0000 3D 10 84 0F 01 5D This confirms that the download link cradle, cable, the Powertap CPU and your COM port are functioning
properly. Sometimes the command you send needs to be repeated to get a response. This is normal.
5. If you only get "0000" and nothing else following it, there is a problem with the Powertap computer.
6. If you get "0000 FF FF FF FF FF FF" or “0000 00 00 00 00 00 00”, again there is a problem with the Powertap computer.
7. Type a capital "D" and you should get a long string of letters, symbols and numbers. This is the downloaded data from the Powertap computer that is unreadable in HyperTerminal. If you don't
get this on your screen the CPU is unable to download.
If after reviewing this section you still have trouble, please give us a call at 800-783-7257 Ext. 159
Testing PRO model with HyperTerminal
The process is the same as with the original standard except the command to send is “V”. The PRO will respond with XX.XX PRO XX/YY/ZZ XXXX” This is the firmware version and serial number
information.
Serial Port Trouble Shooting
· Check to make sure your COM port setting (see: Options > Application Setup) corresponds with the physical COM port on your PC.
· Check to make sure the COM port is not configured for another application. Personal Digital Assistant (PDA) software or other device applications may be occupying the port at start up. You
may have to exit the occupying software to release the COM port for the Link software.
· Make sure the Link serial cable is securely connected to both the COM port on your PC and the Powertap computer. Notice that the Powertap computer should be awake (LCD segments illumi-
nated) before you attach the Powertap computer to the Link serial cable. Notice that the screen goes blank as soon as you make a positive connection with the cable.