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SIGLENT
94 SDS2000X User Manual
UART/RS232 Trigger and Serial Decode
The following section describes trigger and decoding for UART/RS232 bus types and
is organized as follows: “Setup for UART/RS232 Signals”, “UART/RS232 Triggering”
and “UART/RS232 Decode”.
Setup for UART/RS232 Signals
1. Press the Decode key to enter the DECODE function menu.
2. Press the Decode softkey and select the desired slot(Decode1 or Decode2).
3. Press Protocol softkey and then select UART by turning Universal Knob.
4. Press Signal softkey to enter the SIGNAL menu as Figure 47 shows.
Figure 47: UART SIGNAL Menu
5. Set RX:
1) Press RX to select the channel that is connected to the RX signal.
2) Press first Threshold key to set the RX signal threshold voltage level by
Universal Knob. The threshold voltage level is for decoding, and it will be
regarded as the trigger voltage level when the trigger type is set to serial.
6. Set TX:
a. Press TX to select the channel that is connected to the TX signal.
b. Press first Threshold key to set the TX signal threshold voltage level by
Universal Knob. The threshold voltage level is for decoding, and it will be
regarded as the trigger voltage level when the trigger type is set to serial.
7. Press the Bit Order softkey to select the bit order(LSB or MSB).
8. Press softkey to return previous menu.
9. Press the Configure softkey to enter BUS CONFIG menu.
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