SoftwareSerial lib and 1284p processor

Other Hardware 3rd Party Boards
1

Hi all, 1284p processor it' is supported by software serial library?

I use this pins for rx and tx but with any result ;(

// RX1/INT0 (D 10) PD2 16
// TX1/INT1 (D 11) PD3 17

Any suggest for debug?
thanks Marco

2

You have 2 hardware serial ports and you want to use software serial?

RX0/TX0 and RX1/TX1 are supported with
Serial.begin(speed);
and
Serial1.begin(speed);

3

I try to communicate 1284p with arduino uno via hardaware serial with this simple example:

In 1284p:

void setup() {
  Serial1.begin(9600);
  pinMode(1, OUTPUT); 
}

void loop() {
 digitalWrite(1,HIGH);   // set the LED on
  if(Serial1.available())
  {
    char c = (char)Serial1.read();
    if (c == 'A')
    {
     digitalWrite(1, LOW);   // set the LED off
     Serial1.print('B');
      delay(1000);
    }
  }
}

and in Arduino Uno:

#include <SoftwareSerial.h>

#define RX_PIN  3 
#define TX_PIN  2 

SoftwareSerial SerialCom =  SoftwareSerial(RX_PIN, TX_PIN);

void setup() {                
  SerialCom.begin(9600);
  pinMode(13, OUTPUT);     
}

void loop() {
  digitalWrite(13,HIGH);   // set the LED on
 SerialCom.print("A");
  if(SerialCom.available())
  {
    char c = (char)SerialCom.read();
    if (c == 'B')
    {
     digitalWrite(13, LOW);   // set the LED OFF
      delay(1000);
    }
  } 
}

and i connect pins:

pin 16 ( 1284p) to pin 2 Arduino uno
pin 17 ( 1284p) to pin 3 Arduino uno

but don't work ;( what is wrong?

bye Marco

4

You seem to be mixing what you are sending out, " " vs ' '

SerialCom.print("A");

Serial1.print('B');

5

opsss i seen the mismatch ...:smiley: thanks!