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Data Length — When SDA data’s length is equal to the value of Byte Length
and address’s length is the same as set value, the oscilloscope will be
triggered. Byte length is in the range of 1 to 12 bits.
Operation steps:
1. Press Setup to enter the TRIGGER function menu.
2. Press Type and select Serial.
3. Press Protocol and select I2C.
4. Press Trigger Setting softkey.
Figure 37 I2C TRIGGER Menu
5. Press the Condition softkey and turn the Universal Knob to select the trigger
condition:
If you select the EEPROM condition:
a. Press the Limit Range softkey to set the qualifier ( = ,< or >).
b. Press Data1 softkey and set its value by turning the Universal Knob.
If you select 7 Addr & Data or 10 Addr & Data condition:
a. Press the Addr softkey and turn the Universal Knob to select the 7- bit
or 10- bit device address.
b. Press the Data1 or Data2 softkey and set the value about them.
c. Press The R/W bit softkey and select write-frame or read-frame to
trigger the oscilloscope.
(Tips: If device address is 7-bit, the value of address is in range of 0x00 to
0x7F.If device’s address is 10-bit, the value of address is in range of 0x00 to
0x3FF.)
If you select the Data Length condition:
a. Press Address to set the SDA address length to 7 or 10 bit.
b. Press Byte Length softkey and set the byte length by Universal Knob.
The range of the Byte Length is 1 to 12.
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