Spi Trigger - DigiTech QC1938 User Manual

Note: The Identifier means Remote ID and Data ID.
7. Press When softkey to set trigger condition.
Start: The oscilloscope triggers at the start of a frame.
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Remote ID: The oscilloscope triggers on remote frames with the specified ID.
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Data ID: The oscilloscope will trigger on data frames matching the specified ID
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Frame ID: The oscilloscope will trigger on data frames od remote frames matching the specified frame data.
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Data Frame and data: The oscilloscope will trigger on data frames matching the specified data frame ID and data.
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a.Press Data software, use V0 to set the data, refer to 2.7.10;
b. Data Mask: When set to "ON", the data is ignored when it is triggered; the setting is "OFF", and the data on the data
line must be consistent with the data of the index so that it can trigger;
c.Data Index: The range is 0 to 3. It can set four hexadecimal data.
Error: The oscilloscope will trigger on error frames matching the specified data.
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All Error: The oscilloscope will trigger when any form error or active error is encountered. Not include judgment of
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CRC errors.
Ack Error: The oscilloscope will trigger when the comfirm is high.
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Overload Frame: The oscilloscope will trigger on overload frames.
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8. Press the Mode softkey, turn V0 to select the trigger mode (auto, normal), and press V0 to confirm.
Auto: When the oscilloscope meets the trigger condition, it completes a trigger acquisition once; when the trigger condition
is not met, it can run the acquisition waveform freely.
Normal: When the oscilloscope meets the trigger condition, the input waveform is displayed; when the trigger condition is
not met, the original waveform is displayed.
9. Press the Holdoff softkey and turn V0 to set the time that the oscilloscope waits before a trigger to the next trigger, so that
complex waveforms are displayed stably.

2.7.13. SPI Trigger

In SPI trigger, when timeout condition is satisfied, the oscilloscope triggers when the specified data is found. When using SPI
trigger, you need to specify the SCL clock sources and SDA data sources. Below is the sequential chart of SPI bus.
1. Press the [Trig Menu] button on the front panel to enter the Trigger system function menu.
2. Press the Type softkey, then turn the Multifunctional Knob to select SPI and push down the knob to confirm.
3. Source: Press SCL and SDA softkey to specify the data sources of SCL and SDA respectively. They can be set to
CH1-CH2.
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