L M 3 S 3 7 4 8 E V A L U A T I O N K I T
R E A D M E F I R S T
Rev. 1.3
10
Note:
The “Display” group is the default active group after power-up.
7)
Press “up” or “down” until the “Timebase” option is selected and then press “left” or
“right” to modify the amount of time per division.
8)
Press “up” or “down” until the “Ch1 Scale” or “Ch2 Scale” option is selected and then
press “left” or “right” to modify the number of volts per division for that channel.
USB Device Mode
The quickstart oscilloscope application can connect to a Windows host machine via USB
where a companion application running on the PC can be used to control the oscilloscope and
display and save the waveforms. In this mode, the LM3S3748 EVB will be operating in USB
device mode.
The first step is to install the necessary USB drivers on the PC.
1)
Disconnect the USB cable from the USB connector labeled “DEBUG USB” if
connected.
2)
Move the USB power mode switch (SW3) to the “BUS” position.
3)
Connect the mini-b (smaller) end of the USB cable to the USB device connector
labeled “USB DEVICE” on the EVB. Connect the other end (Type A) to a free USB
port on your host PC.
4)
Windows starts the Found New Hardware Wizard and asks if Windows can connect to
Windows Update to search for software. Select “No, not this time” and then click
Next.
