ASCII Encode

Convert Simulink values into uint8 character vector

• Library:

• Simulink Real-Time / RS232

• 

Description

The ASCII Encode block generates a uint8 output vector that contains a NULL-terminated character vector based on a printf like format string. The data comes from the input ports.

Ports

Input

1 — Numbered ports that receive values to encode

numeric

Values that the block encodes as a null-terminated character vector.

Data Types: double | int8 | uint8 | int16 | uint16 | int32 | uint32

Output

D — Null-terminated character vector

character vector

Generated uint8 output vector that contains a NULL-terminated character vector.

Parameters

Format string — Format specifiers for converting values to ASCII

%d\r (default) | %c | %i | %o | %u | %x | %e | %f | %g

Enter a printf like format string. For each format specifier such as %d, the block replaces the format specifier by the converted value in the corresponding input variable. The format specifiers follow the normal description for printf.

Programmatic Use

Block Parameter: format

Number of variables — Number of block inputs

1 (default) | integer

The value on each port is inserted into the output character vector with the format specified in Format string.

Programmatic Use

Block Parameter: nvars

Max output string length — Maximum length of converted character vector, in bytes

128 (default) | integer

The block allocates enough memory to support this length for the output port. When specifying this length, include the NULL termination on the character vector.

If the converted character vector exceeds this length, the block returns an error and does not write that character vector to the output port.

Programmatic Use

Block Parameter: maxlength

Variable types — Simulink^® data types allowed for input ports

{'double'} (default) | {'int8'} | {'uint8'} | {'int16} | {'uint16'} | {'int32'} | {'uint32'}

A cell vector with the same number of elements as specified in Number of variables can specify a different data type for each input port. A single element is replicated. For example:

nvars=3

{ } — The three inputs are doubles.

{'uint8'} — The three inputs are uint8.

{'uint16', 'double', 'uint8'} — The first input is a uint16, the second input is a double, and the third input is a uint8.

Programmatic Use

Block Parameter: vartypes

Model Examples

ASCII Encoding/Decoding Loopback Test

How to send ASCII data over a serial link.

Open Script

ASCII Encoding/Decoding Resync Loopback Test

Model shows the ability of the FIFO Read HDRS block to resynchronize after being repeatedly disabled and its the ability to resolve errors such as when a message is only partially complete at the time the read is attempted.

Open Script

Binary Encoding/Decoding Loopback Test

How to send Binary data over a serial link.

Open Script

Binary Encoding/Decoding Resync Loopback Test

The ability of the FIFO Read BINARY block to handle messages that are interrupted and only partially complete.

Open Script

Simple ASCII Encoding/Decoding Loopback Test (With Baseboard Blocks)

Model shows how a single floating point number can be converted to ASCII and transmitted over a serial link.

Open Script

ASCII Encoding/Decoding Loopback Test (With Baseboard Blocks)

Model shows how to send ASCII data over a serial link.

Open Script

ASCII Encoding/Decoding Resync Loopback Test (With Baseboard Blocks)

The ability of the FIFO Read HDRS block to resynchronize after being repeatedly disabled as well as the ability to resolve errors such as when a message is only partially complete at the time the read is attempted.

Open Script

Binary Encoding/Decoding Loopback Test (With Baseboard Blocks)

How to send Binary data over a serial link.

Open Script

Binary Encoding/Decoding Resync Loopback Test (With Baseboard Blocks)

The ability of the FIFO Read BINARY block to handle messages that are interrupted and only partially complete.

Open Script

Version History

Introduced in R2020b