Rohde Schwarz Rohde & Schwarz HMO1002 2-channel oscilloscope, Digital Storage oscilloscope, 21-1002-RS00 数据表

产品代码
21-1002-RS00
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页码 60
35
Signal Generation
you would like each sample to be applied. The time is 
identical for all samples. The configurable PERIOD applies 
to the entire pattern and is calculated by its length 
multiplied by its bit time (time of a sample). If the BURST 
function is activated (ON), the instrument will pause after 
each issued pattern for the duration of the IDLE TIME. 
Only then will the pattern be issued again. Setting the 
N-CYCLE option enables the user to issue the pattern 
precisely <n> times. The sample time can be set from 
20 ns to 42 s in increments of 10 ns. It will be implemented 
by means of a 32 bit counter. The IDLE TIME between the 
patterns can be set from 10 ns to 42 s in increments of 
10 ns. It will also be implemented by means of a 32 bit 
counter. Use the universal knob or the KEYPAD key in the 
CURSOR/MENU control panel to enter the values. 
 SAVE/RECALL:  
The manually created pattern can be saved or recalled via 
soft menu SAVE or RECALL. The pattern can be stored 
internally or externally on a connected USB stick. The 
pattern and the time settings will be saved.
 TRIGGER:   
The soft menu key ARB. TRIGGER makes three possible 
trigger functions available. The CONT. option (continuous 
trigger) issues the pattern continuously. If the BURST 
function is activated, only the IDLE TIME is applied 
between the patterns. The N-CYCLE setting is voided by 
the continuous output. For the EXT. (external trigger) 
setting, the pattern is issued by an edge at the external 
input of the oscilloscope (TRIG. EXT.). If the BURST 
function is activated, the pattern will be issued <n> 
times (see N-CYCLE). In addition, you are able to 
determine the direction of the triggering edge. If BOTH is 
selected as slope direction, both edges are of equal 
value. The first edge triggers the pattern. The edges do
not alternate. If the MAN. setting is activated, the pattern 
is issued manually by pressing the respective key. If the 
BURST function is activated, IDLE TIME and N-CYCLE 
apply.
10 .2 .4 Manual
In the manual pattern mode, the modes of the individual 
pins S0 to S3 are wired separately. Each pin is assigned 
to a specific soft menu key and the condition HIGH (H) or
LOW (L) is selected.
10 .2 .5  BUS Signal Source
Use the pattern generator connectors on the front panel of 
the instrument to generate the following BUS signals (for 
measurements without measurement object), depending
on the setting:
 ❙SPI: Data rate 100 kBit/s, 250 kBit/s or 1 MBit/s
 ❙I
2
C: Data rate 100 kBit/s, 400 kBit/s, 1 MBit/s or 3.4 MBit/s
 ❙UART: Data rate 9600 Bit/s, 115.2 kBit/s and 1 MBit/s
 ❙CAN: up to 50 MBit/s
 ❙LIN: up to 50 MBit/s
The contact at the upper left is always ground and the 
signal levels are about 1 V. The following table shows how 
the four outputs S1, S2, S3 and 
 are used, depending on 
the signal.
Signal
S1
S2
S3
S0/
SPI
Clock
MOSI
MISO
Chip Select
I
2
C
Data SDA
no signal
no signal
Clock SCL
UART
RX
no signal
no signal
TX
CAN
CAN L
no signal
no signal
CAN H
LIN
Low
no signal
no signal
High
An information box is displayed for each operating mode, 
displaying the corresponding connector assignment. By 
pressing the respective soft menu key, you can open a 
submenu with the bit rate setting of the selected operating 
mode.
Tab. 10.3: Pin assignment of the BUS signal source
Fig. 10.2: Arbitrary pattern setup