Rigol DS1000Z Series User Manual

RIGOL Chapter 7 Protocol Decoding
DS1000Z User’s Guide
7-6
Start Bit
Data Bit
Check Bit
Stop Bit
Start Bit: represent when the data starts outputting. Setting the Polarity is
equivalent to specifying the “Start Bit”.
Data Bits: represent the number of data bits actually contained in each frame of
data.
Check Bit: used to check the correctness of the data transmission.
 Odd Checkout: the number of “1” in the data bit and check bit is an odd. For
example, when 0x55 (01010101) is sent, a 1 needs to be filled in the check bit to
make the number of 1 be an odd.
 Even Checkout: the number of “1” in the data bit and check bit is an even. For
example, when 0x55 (01010101) is sent, a 0 should be filled in the check bit.
 None: there would not be check bit during the transmission.
Press MATH  Decode1  Decoder to select “RS232” and open the RS232
decoding function menu.
1. Press Decode to turn on or off the decoding function.
2. TX and RX Channel Setting
Press TX to select any channel (CH1-CH4) as the transmitting channel and when
“OFF” is selected, no transmitting channel is set. Use the same method the set
the RX channel.
3. Polarity Setting
Press Polarity to select “ ” or “ ” and the default is normal. The
oscilloscope will select the rising or falling edge as the start position during
decoding.
4. Baud Rate Setting
Press Baud use to select the desired baud rate and you also can press
Preset to select 2400, 4800, 9600, 57600, 115200, 230400, 460800, 921600
and 1000000 and the default is 9600, the unit is bps.
5. Endian Setting

Rigol DS1000Z Series Specifications

General

Brand	Rigol
Model	DS1000Z Series
Category	Test Equipment
Language	English