![R&S RTA4000 User Manual Download Page 636](http://html2.mh-extra.com/html/rands/rta4000/rta4000_user-manual_3161987636.webp)
Remote control commands
R&S
®
RTA4000
636
User Manual 1335.7898.02 ─ 08
STER: start error, no start bit found.
SPERr: stop error, no stop condition found.
PRER: parity error, which indicates a transmission error.
BRE: break condition found. A start bit is not followed by a stop
bit, and the data line remains at logic 0 for longer than a UART
word.
OK: the frame is valid.
INS: the frame is not completely contained in the acquisition.
The acquired part of the frame is valid.
Usage:
Query only
BUS<b>:UART:FRAMe<n>:WCOunt?
BUS<b>:UART:RX:FRAMe<n>:WCOunt?
BUS<b>:UART:TX:FRAMe<n>:WCOunt?
Returns the number of symbols in the specified frame.
Suffix:
<b>
.
1..4
<n>
*
Selects the frame.
Return values:
<WordCount>
Number of words (symbols, characters)
Usage:
Query only
BUS<b>:UART:FRAMe<n>:WORD<o>:SOURce?
Returns the line on which the specified word was transferred.
Suffix:
<b>
.
1..4
<n>
*
Selects the frame.
<o>
*
Selects the word.
Return values:
<Source>
TX or RX
Usage:
Query only
BUS<b>:UART:FRAMe<n>:WORD<o>:STATe?
BUS<b>:UART:RX:FRAMe<n>:WORD<o>:STATe?
BUS<b>:UART:TX:FRAMe<n>:WORD<o>:STATe?
Returns the status of the specified symbol (word).
Serial bus analysis