Hardwareserial.h With flowcontrol

Projects Networking, Protocols, and Devices
1

I'm attempting to use this library (it is actually an amended official library) GitHub - i-am-bigmike/HardwareSerial_flow_control: Arduino Hardware Serial with Flow Control

And a very useful amendment it makes: It allows hardware flow control via CTS and RTS using the standard Serial commands.

The problem is, that when I replace all of the required files, in the location that they are on my computer, Arduino IDE has a problem and says:

Blockquote
C:\Users----\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino/HardwareSerial.h:146: undefined reference to HardwareSerial::begin(unsigned long, unsigned char, signed char, signed char)' C:\Users\----\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino/HardwareSerial.h:148: undefined reference to HardwareSerial::begin(unsigned long, unsigned char, signed char, signed char)'
collect2.exe: error: ld returned 1 exit status
exit status 1

Compilation error: exit status 1

Blockquote

I am using the example that comes with this, in fact any Serial.begin brings the error:

/* Flow control test tx 1.0.0
 * (C) 26-03-2019 Michele Bighignoli
 * 
*/

#define SerialRecv Serial2

bool rcvExit = false;
char c = '0';
char r;
unsigned long i = 0;
unsigned int m = 0;
unsigned long elapsedTime;

void setup() {
  Serial.begin(115200);
  Serial.println("Starting up");

  SerialRecv.begin(500000, 3, 4);   // speed, cts, rts

  // Wait for start signal
  while (SerialRecv.read() != '{') {
    
  }

  elapsedTime = millis();
}  

void loop() {

  if (!rcvExit) {
    while (SerialRecv.available() > 0) {
      r = SerialRecv.read();
      //delayMicroseconds(5);
      //delay(1);
      //Serial.print(r);

      if (r == '}') {
        rcvExit = true;
        break;
      } else {
        if (r != c) {
          Serial.print("Error ");
          Serial.println(String(r)+" should be "+String(c));
          Serial.println(i);
          rcvExit = true;
          break;
        }
      
        c++;
        if (c > 'z') {
          c = '0';
        }
    
        i++;
        m++;  // Using m and not i % 50000 speeds up the receiving
        if (m == 50000) {
          Serial.println(i);
          m = 0;
        }
      }
    }
  } else {
    elapsedTime = millis() - elapsedTime;
    Serial.print("Elapsed time: ");
    Serial.println(elapsedTime);
    while (true) {}
  }
  
}

I guess that maybe something has changed in the IDE since then?

Do you know a way to get that to work, or indeed, another library that does a similar thing and allows the user to employ CTS and RTS while reading and writing to a Serial port?

2

Please post your code and any other relevant information as recommended in the first pinned post in each forum thread.

The more information you provide, the more and quicker answers you get.

3

I am using the example in the link that I posted.

I have updated the post.

4

Sounds like you missed some of the files (probably a HardwareSerial.cpp)
Can you provide more details on exactly which files you replaced?

PS: AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino/HardwareSerial.h looks like a correct file...

5

With that response, then I assume you are verifying that the library works on your computer?

I replaced the 7 files that the creator supplies in the zip file.

6

It works on 1.8.13 but not on the latest IDE.

7

I have no problem compiling the examples for an Arduino Mega...