SIGNALCORE SC5511A Operating & Programming Manual page 46

GET_DEVICE_INFO
GET_LIST_BUFFER
GET_ALC_DAC_VALUE
Table 47 Return Valid Data for GET_RF_PARAMETERS Register
Data Return Name
RF1 Frequency
List Start Frequency
List Stop Frequency
List Step Frequency
Sweep Dwell Time
Sweep Cycles
Sweep Buffer Points
RF1 Power Level*
RF2 Frequency
Signal Phase*
While all return data for the GET_RF_PARAMETERS Register (0x20) are unsigned integers, the RF1 power
level and phase are returned as a 4-byte flattened floats which need to be re-casted back to a float using
*(float*)& in C/C++.Programming the RS-232 Interface
The RS-232 version of the SC5511A has a standard interface buffered by an RS-232 transceiver so that it
may interface directly with many host devices, such as a desktop computer. The interface connector for
RS-232 communication is labeled "Digital I/O" on the front of the panel. Refer to Table 2 for position and
pin-out information. The device communication control set is provided in Table 48 below.
Table 48. RS-232 communication settings.
Baud rate
Data bits
Parity
Stop bits
Flow control
SC5511A User Manual
0x23 valid
0x24 valid
0x25 valid
Data Sent Byte 4
0x00 valid
0x01 valid
0x02 valid
0x03 valid
0x04 valid
0x05 valid
0x06 valid
0x07 valid
0x08 valid
0x0A valid
Rate of transmission. Pin 16 of the Digital IO connector selects the rate. By
default if the pin is pulled high or open, the rate is set 56700 at power up or
upon HW reset. When the pin is pulled low or grounding it, the rate is set to
115200 upon reset or power up.
The number of bits in the data is fixed at 8.
Parity is 0 (zero).
1 stop bit.
0 (zero) or none.
Rev 1.7.0
valid valid valid
valid valid valid
valid invalid invalid
Byte 3 Byte 2 Byte 1
valid valid valid
valid valid valid
valid valid valid
valid valid valid
valid valid valid
valid valid valid
valid valid valid
valid valid valid
valid invalid invalid
valid valid valid
invalid
valid
invalid
Byte 0
valid
valid
valid
valid
invalid
invalid
invalid
invalid
invalid
invalid
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