186
Trigger mode menu description:
a)
Start — trigger when SCL is high and SDA has a falling edge (includes restart).
b)
Stop — trigger when SCL is high and SDA has a rising edge.
c)
LostAck — Trigger when the bus Ack bit is high.
d)
Restart — triggered when a new start condition occurs before the stop condition.
e)
NoACKInAdr — trigger when the ack bit in the set address field is invalid (ignoring W/R bit), select
“Address” in the trigger data, and use the pop-up virtual soft keyboard to modify it.
f)
Frame 1 - Start + Address 7 + Read/Write + Ackno Data; if all bits in the frame type match,
trigger on read/write frames in 7-bit addressing mode on the 17th clock edge.
Frame type 1 operation method: Select values after the address/data, click values after the address/data
on the touch screen, and modify them on the pop-up virtual soft keyboard.
g)
Frame 2 — Start + Address 7 + Read/Write + Ackno Data 1 + Ackno Data 2; trigger
on read/write frames in 7-bit addressing mode on the 26th clock edge if all bits in the frame type match.
The operation method of configuring frame type 2 is the same as frame type 1, and will not be repeated
here.
h)
RomData - When the read operation which contains 1010xxx control byte of the EEPROM appears on
the bus and the Ack bit is correct, then the read data can be captured. If the captured data and the set
data match the set relationship condition, trigger on the clock edge of Ack bit after the data byte. After
selecting “EEPROM Data Read”, click the relationship by “=” “ >” “<” “ ≠”, and the setting method is
the same as the address field.
i)
10WriteFrame - Trigger on 10-bit write frame on the 26th clock edge if all bits in the pattern match.
Trigger mode is start condition, SCL connect to Ch2, SDA connect to Ch1, follow these steps as below:
(1) Tap S1 to open the decode channel, and click S1 again to open the bus configuration menu;
(2) Select the bus type as “I2C”, open the bus setting menu, and select the clock SCL as Ch2 channel;
(3) Open the trigger mode configuration menu and click “Start Condition” on the touch screen.
(4) Set the threshold level of two channels according to signal amplitude; I2C trigger graphic interface is
shown in Figure 13-24:
Содержание ATO1000 Series
Страница 1: ......
Страница 2: ...Version Info Version Date Remarks V1 0 2020 06 ...
Страница 52: ...Chapter 3 Automotive Test 49 Figure 3 30 Electronic fuel pump test ...
Страница 67: ...64 Figure 3 45 CAN BUS Test The figure below is the actual measurement of the CAN bus of a certain model ...
Страница 71: ...68 Figure 3 49 K line test ...
Страница 79: ...76 Figure 3 57 Mazda 6 Cylinder internal pressure measurement ...
Страница 169: ...166 Figure 12 15 Locking Interface ...
