Chapter 2 Quick Start
RIGOL
User’s Guide for DS6000 Demo Board 2-3
(Continued) Table 2-1
B
oard Layout Explanation
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
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