Flachmann und Heggelbacher Docklight V2.2, Руководство пользователя

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Docklight V2.2 User Manual 07/2016 Copyright 2016 Flachmann und Heggelbacher GbR
Working with Docklight (Advanced)
Function character '!' (F11) - setting RTS and DTR
Character Value
(Decimal Mode) RTS DTR
000 Low Low
001 High Low
002 Low High
003 High High
Temporary parity changes / 9 bit applications
Some protocols and applications require a 9th data bit, e.g. for device addressing on a
bus. The only way to talk to such devices using a standard UART with maximum 8 data
bits is to use serial settings that include a parity bit and change this parity bit
temporarily within a
Send Sequence . The function character '!' supports additional
parameter values for this purpose:
Character Value
(Decimal Mode) Parity
016 No parity
032 Odd parity
048 Even parity
064 Mark. Set parity bit to logic '1'
080 Space. Set parity bit to logic '0'
The new parity settings are applied starting with the next regular character, both on the
TX and the RX side. The parity is switched back to the original
Communication Settings
after the Send Sequence has been completely transmitted.
NOTE: The most useful parameters for this function character are the "Mark" and
"Space" settings, because they allow you to set the parity bit to a defined value that
effectively serves as a 9th data bit.
NOTE: It is recommended to set the Parity Error Character to "(ignore)", so you can
evaluate incoming data in both cases, 9th bit = high and 9th bit = low.
TIP: See also the SwitchParityDemo.ptp sample project (folder Extras
\ParitySwitch_9BitProtocols in your \Samples directory).
Function character '!' (F11) - detecting handshake signal changes
(CTS, DSR, DCD or RI)
Docklight Scripting detects changes of the handshake signals CTS, DSR, DCD or RI,
but in normal operation these changes are not visible in the Docklight Communication
Window (similar to a
Break State ).
Using the function character '!' you can make these changes visible, and/or define an
action after detecting such changes. The function character '!' supports the following
parameter values for this purpose:
Character Value
(Decimal Mode) Handshake Signal