RIGOL
Use the same method to select the Rx source and set the threshold (only
when the Rx source channel is set to an analog channel (CH1-CH4)).
Note:
The Tx and Rx source channels cannot be set to "OFF" at the same time.
Polarity
⚫
Click Polarity continuously to select the polarity of data transmission. It
can be set to "
➢
indicates logic "0".
➢
indicates logic "1".
5. Set data package
Click Settings to enter the data package setting menu.
Data
⚫
Click Data to set the number of data bits actually contained in each frame
of data. The available data bits are 5 bits, 6 bits, 7 bits, 8 bits, and 9 bits.
Parity
⚫
It is used to check whether the data transmission is correct. Click Parity to
select the desired parity mode.
None: indicates that no check bit appears during the transmission.
➢
Even: indicates that the total number of "1" in the data bit and check
➢
bit is an even number. For example, when 0x55 (01010101) is sent, "0"
should be added to the check bit.
Odd: indicates that the total number of "1" in the data bit and check bit
➢
is an odd number. For example, when 0x55 (01010101) is sent, "1"
should be added to the check bit.
Stop Bit
⚫
Click Stop Bit to set the stop bits after each frame of data. It can be set to
1 bit, 1.5 bits, or 2 bits.
Endian
⚫
Click Endian to select "LSB" or "MSB". By default, it is "LSB".
LSB: indicates Least Significant Bit transmission sequence, i.g. the lowest
bit of the data is transmitted first.
MSB: indicates Most Significant Bit transmission sequence, i.g. the highest
bit of the data is transmitted first.
11-8
" or "
: positive logic. High level indicates logic "1"; low level
: negative logic. High level indicates logic "0"; low level
Chapter 11 Protocol Decoding
".
DS8000-R User Guide