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15. How to observe and analyze the data
Follow up below steps to observe and analyze the current data acquired:
1.
Turn “
Sec/Div
” knob to adjust the time length for data display in each division (to adjust the data
resolution displayed).
2.
Turn “
Cursor
” knob to observe more details for the data of current cursor position. The data of binary
value for current cursor position display in binary system area and power on measure menu then bus
value for current cursor position will display in measurement window.
3.
Turn “
horizontal position
” knob can move the current displayed data to left/right position in storage area
quickly.
We will use a simple measurement example to explain the primary setting for LA measurement.
We need to measure a three lines SPI signal, three signals are enable, clock and data. Clock is in effect when
enable is low clock data, and clock frequency is 1M, data width is 32 digits, every clock corresponds to one
data. Signal voltage is 3.3V.
16. Display systems
We need only three channels as what we measure is 3 signals. And other channel and bus can be off. In this
way the display resolution in using channel will be increased.
Display system mainly to set on/off for measure channel. We use CH00, CH01, CH02 as measure channel
correspond to signal enable, clock, data accordingly. Other channel and bus is off.
1.
Press “
A(DISPLAY)
” and display menu appears.
2.
Press “
F1
” till signal sources display as “
Channel
”
3.
Press “
F2
” or turn “CH1 Volts/Div” knob till channel No. display as “
CH00
”.
4.
Press “
F3
” and set the signal sources as “
ON
”. Repeat operation of steps 3.4 and set CH01, CH02
as “ON” and CH03-CHOF as “
OFF
”. Refer to Fig. 13.
5.
Press “
F1
” till sources display as “
BUS
”.
6.
Press “
F2
” till Bus No. display as “
BUS0
”
7.
Press “
F3
” and set signal sources as “
OFF
”. Repeat operation of steps 6.7 and set BUS1, BUS2, BUS3
all as “OFF”. Ref to Fig. 14.
Now display panel only show CH00, CH01, CH02 and others channel and bus are all off. Ref to Fig. 12
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