No Device Type
Before you do anything else....
If the Run/Identify test shows no entry in the "Device Type" column, you can try these various fixes based on your Loopback and Echo results.
There is a "No" in Loopback, and "No" in Echo.
- If you are using a Parallax USB connection, the USB port may be using the wrong drivers. Go to the USB Drivers page for help.
- If you are using a serial connection, your serial cable may be at fault. You must use a standard straight-through serial cable, not a null modem or cross-over cable. If you have a multimeter, perform a continuity test of each pin to confirm you are using an undamaged standard straight-through serial cable.
There is a "Yes" in Loopback and "Yes" in Echo:
There is a "Yes" in Loopback and a "No" in Echo:
- If you have forgotten to install the BASIC Stamp into its socket on the Board of Education, or you may have plugged it in upside-down, review the directions on how to .
- If you are using a USB connection, try adjusting the COM port's Latency Timer Settings.
There is a "No" in Loopback and a "Yes" in Echo:
- If you are using a USB connection, try adjusting the COM port's Latency Timer Settings.
- If you are using a serial connection, your serial cable may be at fault. You must use a standard straight-through serial cable, not a null modem or cross-over cable. If you have a multimeter, perform a continuity test of each pin to confirm you are using an undamaged standard straight-through serial cable.