RIGOL DS6000 Users Guide

RIGOL
Users Guide
DS6000 Digital Oscilloscope Demo Board
July 2011
RIGOL Technologies, Inc.
RIGOL
Guaranty and Declaration
Copyright
© 2011 RIGOL Technologies, Inc. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL Technologies, Inc.
Publication Number
DMA06105-1110
Notices
RIGOL products are protected by patent law in and outside of P.R.C. RIGOL reserves the right to modify or change parts of or all the specifications and pricing policies at
company’s sole decision.
Information in this publication replaces all previously corresponding material. RIGOL shall not be liable for losses caused by either incidental or consequential in connection with
the furnishing, use or performance of this manual as well as any information contained.
Any part of this document is forbidden to be copied or photocopied or rearranged without prior
written approval of RIGOL.
Product Certification
RIGOL guarantees this product conforms to the national and industrial standards in China. International standard conformance certification is in progress, e.g. ISO.
Contact Us
If you have any problem or requirement when using our products, please contact RIGOL Technologies, Inc. or your local distributors, or visit: www.rigol.com
User’s Guide for DS6000 Demo Board I
RIGOL
II
Contents
Guaranty and Declaration ..................................................................................................... I
Chapter 1 Overview ....................................................................................................... 1-1
Chapter 2 Quick Start .................................................................................................... 2-1
2.1 Demo Board Layout .......................................................................................................2-1
2.2 Measurement Connection ...............................................................................................2-7
2.3 Demo Board Power-on ...................................................................................................2-7
Chapter 3 Demo Board Applications ............................................................................... 3-1
3.1 Common Signal Applications ...........................................................................................3-1
3.1.1 Square Signal .......................................................................................................3-1
3.1.2 Sine Signal ..........................................................................................................3-2
3.1.3 DA Output Signal..................................................................................................3-4
3.1.4 Differential Signal .................................................................................................3-6
3.1.5 PAL Video Signal ..................................................................................................3-8
3.1.6 NTSC Video Signal ................................................................................................3-9
3.1.7 Amplitude Modulation Signal ................................................................................ 3-10
3.2 Special Signal Applications ............................................................................................ 3-12
3.2.1 Noisy Sine Signal ................................................................................................ 3-12
3.2.2 Slow Sweep Signal ............................................................................................. 3-15
3.2.3 Fast Sweep Signal .............................................................................................. 3-17
3.2.4 Phase Deviation Signal ........................................................................................ 3-19
3.2.5 Rare Abnormal Signal ......................................................................................... 3-20
3.2.6 Frequent Abnormal Signal ................................................................................... 3-22
3.2.7 Manual Abnormal Signal ...................................................................................... 3-24
3.2.8 Manual Burst Signal ............................................................................................ 3-25
3.2.9 Narrow Burst Signal ............................................................................................ 3-27
3.2.10 Glitch Signal of Sine .......................................................................................... 3-28
3.2.11 Glitch Signal of Square Waveform ...................................................................... 3-30
3.2.12 Crosstalk Signal ................................................................................................ 3-32
3.3 Digital Signal Applications ............................................................................................. 3-35
3.3.1 RS232/UART Signal ............................................................................................ 3-35
3.3.2 SPI Signal .......................................................................................................... 3-38
3.3.3 I2C Signal .......................................................................................................... 3-40
3.3.4 CAN Signal ........................................................................................................ 3-42
3.3.5 Signals for Testing Logic Analyzer ........................................................................ 3-43
User’s Guide for DS6000 Demo Board
Chapter 1 Overview RIGOL
Chapter 1 Overview
This manual introduces the functions and using methods of DS6000 Demo board. This Demo board is used to illustrate the basic functions of the oscilloscope. It is powered through USB port and can output 25 kinds of signals for the illustration of oscilloscope functions.
25 kinds of signals:
Common Signals
Square waveform Sine waveform Digital-to-analog (DA) signal Unfiltered digital-to-analog (DA) signal Differential Signal PAL video signal NTSC video signal Amplitude modulation (AM) signal
Special Signals
Sine signal superimposed with noise Slow sweep signal Fast sweep signal Phase deviation signal Rare abnormal signal Frequent abnormal signal Manual abnormal signal Manual burst Narrow pulse Sine signal superimposed with glitch Square signal superimposed with glitch Crosstalk signal
Digital signal
RS232/UART signal I2C signal SPI signal CAN signal Signals for testing logic analyzer
Note: introductions in this edition are based on the V2.1 version demo board.
User’s Guide for DS6000 Demo Board 1-1
Chapter 2 Quick Start RIGOL
Part1 Part2_EPart2
Part3
Part3_E
Part3_E
Part4
Part4_E
Part5
Part5_E
Part6
Part5_S
Part7_S Part7_E
Part8
Part9
Part10
Chapter 2 Quick Start
This chapter briefly introduces the layout, the connection and the power-on of the Demo board.
2.1 Demo Board Layout
Figure 2-1 Board Layout
User’s Guide for DS6000 Demo Board 2-1
RIGOL Chapter 2 Quick Start
2-2
Diagrams
Pins
Definitions
Detailed Explanations
Part1
SINGLE
Manual trigger key
Used to trigger manual abnormal signal (MANU_AN), manual Burst signal (MANU_BST) and crosstalk signal.
RESET
Manual reset key
Press this key to reset the MCU on the Demo board. When protocol (such as CAN) signal error occurs due to MCU program runaway, press this key to bring the MCU system back to normal working state.
Part2
RARE_AN
Rare abnormal signal
Output a 1MHz square waveform. Narrow pulse occurs every 100ms and the pulse width is not greater than 5 ns.
FREQ_AN
Frequent abnormal signal
Output a 1MHz square waveform. Narrow pulse occurs every 1ms and the pulse width is not greater than 5 ns.
MANU_AN
Manual abnormal signal
Controlled by the manual trigger key SINGLE. Apart from the 1.25MHz square waveform, a narrow pulse with 40ns pulse width is also output each time the SINGLE key is pressed.
MANU_BST
Manual Burst signal
Output 25 bursts each time the SINGLE key is pressed. Each burst contains 100cyc high level, 3cyc low level, 1cyc high level, 3cyc low level and 100cyc high level. The time of each cyc is 8ns.
GLITCH_SINE
Sine glitch signal
Output 500kHz sine signal on which glitches with 2ns width are superimposed. The glitch occurs about every 90 us and its position is not fixed.
GLITCH_CLK
Square glitch signal
Output 1MHz square signal on which glitches with 2ns width are superimposed. The glitch position is not fixed.
CTALK_A
Crosstalk signal 1
Output 1MHz low-frequency square waveform. A 125MHz high-frequency crosstalk signal is also output each time the SINGLE key is pressed.
CTALK_B
Crosstalk signal 2
Part2_E
RARE_AN
Part2 pins extension
——
FREQ_AN
——
MANU_AN
——
MANU_BST
——
GLITCH_SINE
——
GLITCH_CLK
——
Table 2-1 Board Layout Explanation
User’s Guide for DS6000 Demo Board
Chapter 2 Quick Start RIGOL
Part3
AM_MOD
Amplitude modulation signal
Output amplitude modulation signal with 500kHz carrier frequency and 10kHz modulating frequency.
UART
Asynchronous serial transmission signal
The output signal shares the same characteristics (except polarity (positive polarity)) with the signal output from RS232_TX.
RS232_TX
RS232 signal
Output a RS232 signal with 9600Bps baud rate, 1 start bit, 8 data bits, 1 stop bit, LSB output, negative polarity and none check bit. The content of the output data is the character string RIGOL DS6000”.
SPI_SS
SPI SS signal
The signal rate is 1.25MHz and the output data steadily increases from 0 to 255.
SPI_MOSI
SPI MISO signal
SPI_SCLK
SPI MOSI signal
I2C_SDA
I2C data signal
Output signal of I2C data bus. The content of the data is the character string RIGOL but the data frame head and read/write bits will change.
I2C_SCL
I2C clock signal
Clock signal of I2C protocol. The clock frequency is 125kHz.
Part3_E
AM_MOD
Part3 pins extension
——
UART
——
RS232_TX
——
SPI_SS
——
SPI_MOSI
——
SPI_SCLK
——
I2C_SDA
——
I2C_SCL
——
Part4
DIFF_SIG_N
Differential signal
Output random sequence. The frequency is 25MHz and the level logic is low-voltage differential signal (LVDS).
DIFF_SIG_P
PULSE_OUT
Narrow pulse output
Output pulse signal with 100us period and 2ns pulse width.
FLEXRAY_BM
Test signal of FlexRay vehicle-carried network communication protocol
Not supported.
FLEXRAY_BP
FLEXRAY
CAN_L
Differential data bus of CAN protocol
Output CAN signal with 1MHz signal rate. Its data frame ID is 0x6C7, the data frame length is 5 Bytes and the data is the character string RIGOL”.
CAN_H
(Continued) Table 2-1 Board Layout Explanation
User’s Guide for DS6000 Demo Board 2-3
RIGOL Chapter 2 Quick Start
2-4
Part4_E CANL
Part4 pins extension
—— CANH
Part5
CLOCK
Phase deviation signal 50mV, 1MHz clock signal.
DELAY_CLOCK
660mV, 1MHz clock signal. The delay time cannot exceed 4ns.
DAC_OUT
Digital-to-analog output
8 bits digital signal with 10kHz signal frequency and 25MHz sample frequency. Output the converted and filtered sine waveform.
UF_DAC
Unfiltered digital-to-analog output
8 bits digital signal with 10kHz signal frequency and 25MHz sample frequency. Output the converted and unfiltered sine waveform.
SWEEP
SLOW
Slow sweep
Output a sweep signal of which the frequency is from 1kHz to 100kHz. The sweep period is 40s and the sweep mode is log.
FAST
Fast sweep
Output a sweep signal of which the frequency is from10kHz to 1MHz. The sweep period is 8s and the sweep mode is log.
NOISY_SINE
Noisy sine signal
Output sine signal with 500kHz frequency and 1Vpp amplitude. A sine waveform with 125MHz frequency and 300mVpp amplitude is superimposed on this sine signal.
SINE
Sine
Output sine signal with 500kHz frequency and 1Vpp amplitude.
SQUARE
Square
Output square waveform signal with 1MHz frequency, 3.3Vpp amplitude, 50% duty cycle and 10% overshoot.
Part5_S SLOW
Slow sweep
Select Slow or Fast sweep. FAST
Fast sweep
Part5_E
DAC_OUT
Part5 pins extension
——
UF_DAC
SWEEP
NOISY_SINE
SINE
SQUARE
(Continued) Table 2-1 Board Layout Explanation
User’s Guide for DS6000 Demo Board
Chapter 2 Quick Start RIGOL
Part6
DAC_IN7
Digital-to-analog input
Provide 8 bits digital signal as DAC input.
DAC_IN6
DAC_IN5
DAC_IN4
DAC_IN3
DAC_IN2
DAC_IN1
DAC_IN0
Part7_S
NTSC
NTSC video signal
Select the standard of the output signal of the VIDEO_SIGNAL pin. Select NTSC to output a NTSC video signal. Select PAL to output a PAL/SECAM video signal. The signal amplitude is 1Vpp.
PAL
PAL video signal
Part7_E
VIDEO_SIGNA L
Video signal output
——
Part8
LA_D0
Signals for testing
Logic analyzer,
16-channel parallel
data
Output 12.5MHz square waveform.
LA_D1
Output 6.25MHz square waveform.
LA_D2
Output 3.125MHz square waveform.
LA_D3
Output 1.562MHz square waveform.
LA_D4
Output 781.2kHz square waveform.
LA_D5
Output 390.6kHz square waveform.
LA_D6
Output 195.3kHz square waveform.
LA_D7
Output 97.66kHz square waveform.
LA_D8
Output 48.83kHz square waveform.
LA_D9
Output 24.4kHz square waveform.
LA_D10
Output 12.2kHz square waveform.
LA_D11
Output 6.1kHz square waveform.
LA_D12
Output 3.05kHz square waveform.
LA_D13
Output 1.525kHz square waveform.
LA_D14
Output 762.2Hz square waveform.
LA_D15
Output 381.1Hz square waveform.
(Continued) Table 2-1 Board Layout Explanation
User’s Guide for DS6000 Demo Board 2-5
RIGOL Chapter 2 Quick Start
2-6
Part9
GND
Ground terminal
——
GND
Ground terminal
——
+5V
+5V DC voltage
——
+5V
+5V DC voltage
——
GND
Ground terminal
——
GND
Ground terminal
——
-5V
-5V DC voltage
——
-5V
-5V DC voltage
——
D0
24 bits digital input
terminal
24 bits digital input terminal. It can input digital data stream and be used for function extension.
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
Part10
——
USB Device
USB port, used for demo board power supply.
(Continued) Table 2-1 Board Layout Explanation
User’s Guide for DS6000 Demo Board
Chapter 2 Quick Start RIGOL
2.2 Measurement Connection
Connect the signal output terminals of the Demo board to the corresponding input terminals of the oscilloscope before using the Demo board.
Connection Method:
1. Connect the BNC terminal of the probe to one of the BNC connectors of input channels (CH1-CH4) at
the front panel of the oscilloscope.
2. Connect the probe tip to the corresponding signal output pin on the Demo board and connect the
ground alligator clip of the probe to the ground terminal (GND) of the Demo board.
2.3 Demo Board Power-on
The Demo board can be powered through the USB port. Connect the USB DEVICE interface of the Demo board with the USB HOST interface of the oscilloscope or PC using USB data cable.
Note: The icon at the upper-right corner of the board indicates that static electricity would cause
Demo board damage and the board should be used in anti-static environment as far as possible.
User’s Guide for DS6000 Demo Board 2-7
Chapter 3 Demo Board Applications RIGOL
Duty Cycle Measurement
Chapter 3 Demo Board Applications
In this chapter, the Demo board is used to demonstrate the functions of the oscilloscope and the demonstration results of 25 kinds of signals are presented.
3.1 Common Signal Applications
3.1.1 Square Signal
1. Signal Explanation
Signal Output Pin: SQUARE Square waveform with 1MHz frequency, 3.3Vpp amplitude and 50% duty cycle.
2. Functions
Basic signal, edge trigger, duty cycle measurement
3. Demonstration and Result
Connect the signal output pin SQUARE and GND to CH1 of the oscilloscope properly using the
probe;
Set the trigger type to Edge”, the trigger mode to “Auto and the vertical scale to 2 V; adjust
the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably; enable +Duty and Vpp measurements and enable statistic function. The demonstration result is as shown in the figure below.
User’s Guide for DS6000 Demo Board 3-1
Figure 3-1 Demonstration Result of Square Waveform
RIGOL Chapter 3 Demo Board Applications
3-2
3.1.2 Sine Signal
1. Signal Explanation
Signal Output Pin: SINE Sine signal with 500 KHz frequency and 1 Vpp amplitude.
2. Functions
Basic signal, edge trigger, FFT
3. Demonstration and Result
Connect the signal output pin SINE and GND to CH1 of the oscilloscope properly using the
probe;
Set the trigger type to Edge”, the trigger mode to Auto and the vertical scale to 500 mV;
adjust the vertical position and trigger level to appropriate values to make the oscilloscope trigger stably. The demonstration result is as shown in the figure below.
Figure 3-2 Demonstration Result of Sine Signal
User’s Guide for DS6000 Demo Board
Chapter 3 Demo Board Applications RIGOL
Enable FFT operation and the signal frequency is 500 kHz as shown in the figure below.
Figure 3-3 FFT Operation Result of Sine Signal
User’s Guide for DS6000 Demo Board 3-3
RIGOL Chapter 3 Demo Board Applications
3-4
DAC_IN7
DAC_IN6
DAC_IN5
DAC_IN4
DAC_IN3
DAC_IN2
DAC_IN1
DAC_IN0
3.1.3 DA Output Signal
1. Signal Explanation
Signal Output Pin:
UF_DAC (output the converted and unfiltered sine waveform) DAC_OUT (output the converted and filtered sine waveform)
The input of DA conversion are 8 bits, 10kHz digital signals (the signal pins are DAC IN7 to DAC
IN0)
The sample frequency is 25MHz.
2. Functions
MSO, Digital-Analog conversion
3. Demonstration and Result
The digital input signals are as shown in the figures below:
Figure 3-4 Digital Input Signals
Note: in the figure above, the probe ratio of CH1 and CH4 is “×10”.
User’s Guide for DS6000 Demo Board
Loading...
+ 40 hidden pages