BK Precision 2560B Series, Руководство пользователя

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Serial Trigger and Decode
The 2560B series supports serial bus triggering and decoding on the following serial bus protocols: I2C, SPI, UART,
CAN and LIN and also support optional FlexRay, CAN FD, I2S, MIL-STD-1553B, SENT and Manchester .
This chapter introduces the method of triggering and decoding these serial signals in details.
Figure 10.1
Bus Protocols
To select Serial Trigger type:
1. Press the Setup key or use the touchscreen controls to enter the Trigger Menu .
2. Use the touchscreen to select Type .
3. The window shown in figure 9.3 will appear.
– Use the touchscreen to select Serial .
4. Use the touchscreen to select Protocol .
– The dropdown menu shown in figure 10.1 will appear.
5. Select the desired bus protocol.
To select the decoding Bus Protocol :
1. Press the Decode key or use the touchscreen controls to enter the Decode Menu .
2. Use the touchscreen to enable Bus Operation .
3. Use the touchscreen to select Bus Protocol .
4. The window shown in figure 10.1 will appear with the addition of the Manchester
protocol.
5. Select the desired bus protocol.
10.1 I2C Trigger and Serial Decode
10.1.1 Setup for I2C Signals
To set the I2C (Inter-IC bus) signal first, connect the serial data signal (SDA) and serial clock signal (SCL) to oscilloscope.
Set the mapping relation between channels and signals and then set the threshold level of each signal.
To set I2C decoding:
1. Press the Decode key to enter the Decode menu.
2. Use the touchscreen to press the Bus Protocol option and select I2C .
3. Use the touchscreen to press the Protocol Signals option.
– The I2C Signal menu shown in figure 10.2 will be displayed.