Rigol DS1104Z 4-channel oscilloscope, Digital Storage oscilloscope, DS1104Z Benutzerhandbuch
Produktcode
DS1104Z
RIGOL
DS1000Z User’s Guide
7-15
SPI Decoding (Option)
SPI serial bus consists of clock line (SCLK) and data line (SDA).
Host
Device
SDA
SCLK
SDA
SCLK
SCLK
SDA
SCLK: sample the SDA on the clock rising edge or falling edge.
SDA: denote the data channel.
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. Decoding Mode Setting
Press Mode to set the decoding mode of SPI, you can selected “CS” or
“Timeout”.
CS: when CS selection is valid, the SPI bus samples the data at the jumping
point of CLK. After selecting this mode, press CS to select any channel (CH1-CH4)
as the CS channel. If “OFF” is selected, no CS channel is set.
Timeout: when this trigger condition is selected, press Timeout to set the
minimum time that the clock (SCL) signal must be idle before the oscilloscope
will search for the data (SDA) on which to decode. The range is from 100 ns to 1
s.
“Timeout”.
CS: when CS selection is valid, the SPI bus samples the data at the jumping
point of CLK. After selecting this mode, press CS to select any channel (CH1-CH4)
as the CS channel. If “OFF” is selected, no CS channel is set.
Timeout: when this trigger condition is selected, press Timeout to set the
minimum time that the clock (SCL) signal must be idle before the oscilloscope
will search for the data (SDA) on which to decode. The range is from 100 ns to 1
s.
3. CLK Setting
Press CLK to select any channel (CH1-CH4) as the clock channel.