PaulStoffregen
commented
8 years ago I tested this today, but could not reproduce the problem. Since I don't have your serial keyboard, I used Serial1 to transmit to AltSoftSerial. I just put a Teensy 3.2 on a breadboard and connected a wire from pin 1 to pin 20.
Here's the code I tested.
#include <AltSoftSerial.h>
AltSoftSerial keyin;
void setup() {
keyin.begin (9600); // Keyboard Console Serial Receive (Pin 20)
Serial.begin(9600);
Serial1.begin(9600); // connect wire from pin 1 (TX1) to pin 20 (AltSoftSerial RX)
}
elapsedMillis msec = 0;
void loop() {
if (msec > 1000) {
msec = 0;
Serial1.write(127);
}
if (keyin.available() > 0) {
byte keyinData = keyin.read();
Serial.println(keyinData);
}
}Can you please verify you're using the latest AltSoftSerial version?
The ZIP file on the web page was an old, out of date version. I've removed it. The copy in Teensyduino 1.26 and here on github is the latest code.
VMEU
FrankBoesing
Hi there,
I have a problem which I cannot solve here: I use AltSoft for receiving bytes form a 9K6 serial keyboard interface on a Teensy 3.2. It works well for values between 0 and 126. As soon as the sent byte value increases to 127 the Teensy 3.2 recognises numbers in random values. As soon as I receive bytes smaller than 127 it takes 2-3 bytes to get the right output again.
The code works pretty well if I use Serial3 hardware interface. But I need all 3 hardware interfaces for MIDI and another 9K6 RS 232 interface so a fourth interface is needed. Maybe the Teensy is damaged?!?
Here is the code:
include
AltSoftSerial keyin; byte keyinData = 0;
void setup() { keyin.begin (9600); // Keyboard Console Serial Receive (Pin 20) Serial.begin(9600); }
void loop() { if (keyin.available()>0) { keyinData = keyin.read(); Serial.println(keyinData); } }
Is there something I do wrong? Thank you for brining light into my darkness :.-)
Cheers, Alexander