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16.3.2 SPI Trigger
The trigger condition for the SPI trigger is mainly about data.
Touch Trigger Setting in
the dialog box to set data:
A. Trigger Type: MISO or MOSI
B. Data Length: 4~96 bits
C. Set to trigger on the specified data value. Touch Data
Value twice, and enter the value by the virtual keypad,
or touch All Same to set all bits to 0, 1 or ignored ("X")
D. Set the bit order to MSB or LSB
E. Return to previous menu
16.3.3 SPI Serial Decode
The configuration of SPI decoding is similar to I2C.
In the Bus Config menu, Data Length (4-32 bit) and Bit Order
(LSB or MSB) are configurable.
16.4 UART Trigger and Serial Decode
This section covers triggering and decoding UART signals. Please read the following
for more details: " UART Signal Settings", " UART Trigger" and " UART Serial
Decode".
16.4.1 UART Signal Settings
Connect the RX and TX signals to the oscilloscope, set the
mapping relation between channels and signals, and then set
the threshold level of each signal. The process of specifying
the source and threshold is similar to " I2C Signal Settings".
In the BusConfig menu of trigger or decode, the following
parameters are available:
A. Touch to select the baud rate: 600,1200, 2400, 4800,
9600, 19200, 38400, 57600, 115200 b/s or Custom
B. Data Length: 5~8 bit
C. Parity Check: None, Odd, Even, Mark or Space. If the
data is 9 bits, the 9
Space parity
D. Select the number of stop bits
E. Set the idle level
F. Set the bit order
G. Return to previous menu
1.800.561.8187
bit is treated as Mark parity or
th
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T3DSO2000A Manual. Page 85
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