Serial Trigger and Decode
71
7.2.2 SPI Trigger
This section provides a brief introduction for the operation of the SPI trigger.
1. Touch
Setup
button to enter the
TRIGGER
function menu.
2. Touch
Type
and select
Serial
.
3. Touch
Protocol
and select
SPI
.
4. Touch
Trigger Setting
softkey.
Figure 7.15
SPI Trigger Setup Menu
5. Touch
Trigger Type
to select the trigger condition.
Function Menu
Settings
Explanation
Trigger Type
MISO
Master-In, Slave-Out
MOSI
Master-Out, Slave-In
Table 7.2
SPI Trigger Type
6. Touch Data Length softkey, and turn the Universal Knob to set the length of a data. The range of data length is 4
to 96 bits.
7. Set the value of the trigger data.
• Set the value of a bit:
a. Touch
Bit Roll
to select a bit in data.
b. Touch
Bit Value
to set the value of the selected bit.
• Set the value of all bits:
a. Touch
All Same
to set the value of all bits.
Function Menu
Settings
Explanation
Bit Value
0
High voltage level
1
Low voltage level
X
Don’t care the voltage level
Table 7.3
SPI Bit Value
8. Touch
Next Page
softkey.
9. Touch
Bit Order
to set the bit order (MSB or LSB).