mirror of https://github.com/noisymime/Arduino.git
83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
/*
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Arduino Yun USB-to-Serial
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Allows you to use the Yun's 32U4 processor as a
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serial terminal for the linino processor.
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Upload this to an Arduino Yun via serial (not WiFi)
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then open the serial monitor at 115200 to see the boot process
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of the linino processor. You can also use the serial monitor
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as a basic command line interface for the linino processor using
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this sketch.
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From the serial monitor the following commands can be issued:
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'~' followed by '0' -> Set the UART speed to 57600 baud
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'~' followed by '1' -> Set the UART speed to 115200 baud
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'~' followed by '2' -> Set the UART speed to 250000 baud
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'~' followed by '3' -> Set the UART speed to 500000 baud
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'~' followeb by '~' -> Sends the bridge's shutdown command to
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obtain the console.
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The circuit:
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* Arduino Yun
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created March 2013
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by Massimo Banzi
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modified by Cristian Maglie
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This example code is in the public domain.
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http://arduino.cc/en/Tutorial/YunSerialTerminal
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*/
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long lininoBaud = 250000;
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void setup() {
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Serial.begin(115200); // open serial connection via USB-Serial
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Serial1.begin(lininoBaud); // open serial connection to Linino
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}
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boolean commandMode = false;
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void loop() {
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// copy from virtual serial line to uart and vice versa
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if (Serial.available()) { // got anything from USB-Serial?
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char c = (char)Serial.read(); // read from USB-serial
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if (commandMode == false) { // if we aren't in command mode...
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if (c == '~') { // Tilde '~' key pressed?
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commandMode = true; // enter in command mode
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} else {
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Serial1.write(c); // otherwise write char to Linino
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}
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} else { // if we are in command mode...
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if (c == '0') { // '0' key pressed?
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Serial1.begin(57600); // set speed to 57600
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Serial.println("Speed set to 57600");
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} else if (c == '1') { // '1' key pressed?
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Serial1.begin(115200); // set speed to 115200
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Serial.println("Speed set to 115200");
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} else if (c == '2') { // '2' key pressed?
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Serial1.begin(250000); // set speed to 250000
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Serial.println("Speed set to 250000");
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} else if (c == '3') { // '3' key pressed?
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Serial1.begin(500000); // set speed to 500000
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Serial.println("Speed set to 500000");
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} else if (c == '~') {
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Serial1.write((uint8_t *)"\xff\0\0\x05XXXXX\x0d\xaf", 11);
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Serial.println("Sending bridge's shutdown command");
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} else { // any other key pressed?
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Serial1.write('~'); // write '~' to Linino
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Serial1.write(c); // write char to Linino
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}
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commandMode = false; // in all cases exit from command mode
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}
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}
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if (Serial1.available()) { // got anything from Linino?
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char c = (char)Serial1.read(); // read from Linino
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Serial.write(c); // write to USB-serial
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}
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}
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