Waijung 2 User Guide

Configuration Parameter

Selectable Option/Value

Description

UART module

0--1--2

Select UART module.

UART Mode

Regular UART -- Half duplex RS485

Select UART mode

Change baud rate from input

Check--Uncheck

Able to get the baud rate from the input port

Baud rate (bps)

Communication speed configuration value, Example: 9600, 115200, or 1000000

Select baud rate.

Data bits

5--6--7--8

Data bit selection

Parity

None--Odd--Even

Parity bit selection

Stop bit

1--1.5--2

Stop bit selection

Override pin selection constraints

Check--Uncheck

TX GPIO Pin

Not used--0 to 33

Pin connect (remap) configuration for transmit pin (Tx). Or select "Not used " to disable Tx for the selected module.

RX GPIO Pin

Not used--0 to 39

Pin connect (remap) configuration for transmit pin (Rx). Or select "Not used " to disable Rx for the selected module.

Hardware flow control

RTS/CTS

RS 232 and RS485 flow controlling

Hardware flow control, CTS pin

0 -- 39

CTS pin selection

Hardware flow control, RTS pin

0 -- 39

RTS pin selection

RS485 RTS Pin

0 -- 39

RS485 RTS pin selection

Advanced options

Check--Uncheck

This option is to enable advance configuration mode, include memory buffer size.

Rx buffer size (bytes)

0--256--512--1024--2048

Select buffer size for receiving (Rx) buffer, the size must be in a number of 2^N and higher than packet length.

For example, to receive an Rx packet with a length of 90 bytes, the Rx buffer should be configured to 128 or higher.

Tx buffer size (bytes)

0--256--512--1024--2048

Similar to Rx buffer, the size must be in a number of 2^N and higher than transmit packet length.

Configuration Parameter

Selectable Option/Value

Description

UART module

0--1--2

Select UART module to transmit the Tx data from

Packet mode

Ascii--Binary--Raw buffer

Binary : This packet mode will transmit the packets that contain binary data, by specifying the Header, Data format, and Terminator of a packet to transmit. The block will not transmit the packet which contains an invalid Header or Terminator.

Ascii : This packet mode will transmit the packets that contain ASCII data (string), by specifying the sscanf format. The block will create the input port corresponding to the sscanf % format.

For example: for the packet format "Value=%d", the input port of the block will be uint32.

Raw buffer : This packet mode is transmitting the raw string data.

Buffer size

32--64--128--256--512--1024

Specify the expected size of the buffer.

ASCII format

Scanf format specifier, start with %. Below is supported by the block.

%u, %i, %d, %o, %x: sscanf input will be the type of uint32

%e, %g, %f : sscanf input will be the type of single

%s: sscanf input will be the type of string.

End of packet

CR--LF--CRLF

Terminator in ASCII mode is used to detect the end of the packet. The block will transmit ASCII with the terminator.

Binary header

Specify the Header pattern of the packet to transmit

This header is used for packet synchronization.

Binary terminator

Specify the terminator pattern of the packet to transmit

This terminator is used for packet validation.

Number of data port, Type UINT8

Number of data type uint8 in packet

1 data port of this data type contains 1byte in the packet.

Sample time (sec)

-1 (inherited) or specify

Specify the sample time.

Configuration Parameter

Selectable Option/Value

Description

UART module

0--1--2

Select UART module to receive the Rx data from

Packet mode

Ascii--Binary--Read Line--Raw Buffer

Binary : This packet mode will accept the packets that contain binary data, by specifying the Header, Data format and Terminator of a packet to receive. The block will not accept the packet which contains invalid Header or Terminator.

Ascii : This packet mode will accept the packets that contain ASCII data (string), by specifying the sscanf format. The block will create the output port corresponding to the sscanf % format.

For example: for the packet format "Value=%d", the output port of the block will be uint32. If packet "Value=100" is received, the block will return 100 to the output port of the block.

Read Line : This packet mode is receiving the raw string data and stores it into the string buffer directly without processing the packet.

Raw Buffer : This packet mode is receiving the raw data from the uart and output received data without any processing.

Buffer size

32--64--128--256--512--1024

Specify the expected size of the buffer.

ASCII format

Scanf format specifier, start with %. Below is supported by the block.

%u, %i, %d, %o, %x: sscanf output will be the type of uint32

%e, %g, %f : sscanf output will be the type of single

%s: sscanf output will be the type of string.

End of packet

CR--LF--CRLF

Terminator in ASCII mode is used to detect the end of the packet. The block will continue to receive ASCII and store it in a buffer, and detect terminator at the same time. After finding and matching the terminator, the block will perform the sscanf function to extract the value in a packet.

Binary header

Specify the Header pattern of the packet to receive

This header is used for packet synchronization, the block will continue searching for the header, once the header is matched then the next bytes will be data.

Binary terminator

Specify the terminator pattern of the packet to receive

This terminator is used for packet validation, once the header is matched and all data types are received, the next bytes will be terminator. if the terminator is not matched, the block will reject the previous bytes (Header and data), and continue searching for a new packet starting with header again.

Number of data port, Type UINT8

Number of data type uint8 in packet

1 data port of this data type contains 1byte in the packet.

Sample time (sec)

-1 (inherited) or specify

Specify the sample time.