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Chapter 5 To Trigger the Oscilloscope RIGOL
DS1000Z User Guide 5-35
MissedACK: trigger when the SDA data is high level during any
acknowledgement of SCL clock position.
Address: the trigger searches for the specified address value. When this event
occurs, the oscilloscope will trigger on the read/write bit. After this trigger
condition is selected:
--press AddrBits to select "7 bits", "8 bits" or "10 bits";
--press Address to set the address value of I2C trigger. According to the setting
in AddrBits, the range can be from 0 to 0x7F, from 0 to 0xFF or from 0 to
0x3FF;
--press Direction to select "Read", "Write" or "R/W". Note: This setting is not
available when AddrBits is set to "8 bits".
Data: the trigger searches for the specified data value on the data line (SDA).
When this event occurs, the oscilloscope will trigger on the clock line (SCL)
transition edge of the last bit of data. After this trigger condition is selected:
--press Bit X to select the desired data bit and the range is from 0 to (Byte
Length×8-1);
--press Data to set the data pattern of the current data bit to X, H or L;
--press Bytes to set the length of the data and the range is from 1 to 5;
--press AllBits to set the data pattern of all the data bits to the data pattern
specified in Data.
A&D: the oscilloscope searches for the specified address and data at the same
time and triggers when the specified address and data are found. After this
trigger condition is selected:
--press AddrBits to select "7 bits", "8 bits" or "10 bits";
--press Address and use to set the address value. According to the setting
in AddrBits, the range can be from 0 to 0x7F, from 0 to 0xFF or from 0 to
0x3FF;
--press Bit X to select the desired data bit and the range is from 0 to (Byte
Length×8-1);
--press Data to set the data pattern of the current data bit to X, H or L;
--press Bytes to set the length of the data and the range is from 1 to 5;
--press AllBits to set the data pattern of all the data bits to the data pattern
specified in Data;
--press Direction to select "Read", "Write" or "R/W".
Note: This setting is not available when AddrBits is set to "8 bits".
Trigger Mode:
Press Sweep to open the trigger mode list and select auto, normal or single. For the
details, please refer to "
Trigger Mode". The corresponding status light of the
current trigger mode turns on.
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