1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/**
* @example serial_stream_read.cpp
*/
#include <libserial/SerialStream.h>
#include <cstdlib>
#include <iostream>
#include <unistd.h>
constexpr const char* const SERIAL_PORT_1 = "/dev/ttyUSB0" ;
/**
* @brief This example demonstrates configuring a serial stream and
* reading serial stream data.
*/
int main()
{
using namespace LibSerial ;
// Instantiate a SerialStream object.
SerialStream serial_stream ;
try
{
// Open the Serial Port at the desired hardware port.
serial_stream.Open(SERIAL_PORT_1) ;
}
catch (const OpenFailed&)
{
std::cerr << "The serial port did not open correctly." << std::endl ;
return EXIT_FAILURE ;
}
// Set the baud rate of the serial port.
serial_stream.SetBaudRate(BaudRate::BAUD_115200) ;
// Set the number of data bits.
serial_stream.SetCharacterSize(CharacterSize::CHAR_SIZE_8) ;
// Turn off hardware flow control.
serial_stream.SetFlowControl(FlowControl::FLOW_CONTROL_NONE) ;
// Disable parity.
serial_stream.SetParity(Parity::PARITY_NONE) ;
// Set the number of stop bits.
serial_stream.SetStopBits(StopBits::STOP_BITS_1) ;
// Wait for data to be available at the serial port.
while(serial_stream.rdbuf()->in_avail() == 0)
{
usleep(1000) ;
}
// Keep reading data from serial port and print it to the screen.
while(serial_stream.IsDataAvailable())
{
// Variable to store data coming from the serial port.
char data_byte ;
// Read a single byte of data from the serial port.
serial_stream.get(data_byte) ;
// Show the user what is being read from the serial port.
std::cout << data_byte ;
// Wait a brief period for more data to arrive.
usleep(1000) ;
}
// Successful program completion.
std::cout << "Done." << std::endl ;
return EXIT_SUCCESS ;
}
|
