Owon TAO3000 Series User Manual page 53

(4) Click to call up the menu panel. Click the Decode softkey on panel to
switch to the ON state. Select bus type as SPI. set parameters based on
the characteristics of the signal. When the parameters are set correctly,
the information carried by the signal will be displayed.
Tip: If there are repetitive menu items in both trigger menu and decoding menu,
you can set anyone of them, the other will be changed synchronously.
Note:
 Use the upper knob to adjust the thresholds of bus trigger and bus
decoding.
 LS First in Bit Order menu item (Least Significant Bit First) means that the
least significant bit will arrive first: hence e.g. the hexadecimal number
0x12, will arrive as the sequence 01001000 in binary representation, will
be decoded as the reversed sequence 00010010.
SPI Decoding menu list:
Menu Setting
Bus Type SPI
SCLK
Time Out
Configure
Data Bits
Bit Order
Format
EventTable
Display
Save
EventTable
ASCII Table
4. CAN Decoding
4.Advanced User Guidebook
Instruction
Set bus type of decoding as SPI.
Select the clock edge to match the signal, sample the
SDA data on the rising or falling edge of the clock.
Set the minimum time that the clock (SCL) signal
must be idle before the oscilloscope starts to search
for the data (SDA) on which to trigger. The range is
30 ns to 10 s.
Set the data width of each frame to match the signal.
It can be set to any integer between 4 and 32.
Select LS First or MS First to match the signal.
Binary
Decimal
Set the display format of the bus.
Hex
ASCII
ON
Select "ON" to display the event table.
OFF
If a USB storage device is currently connected to the
instrument, save the event table data in a .csv
(spreadsheet) formatted file on the external USB
storage device.
ON
Select "ON" to display the ASCII table.
OFF
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