Mirrored from master snippet repository

Author: adbridge

README.md

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+#UnbufferedSerial
+
+MIRRORED FROM MASTER EXAMPLE SNIPPETS REPOSITORY: mbed-os-examples-docs_only.
+ANY CHANGES MADE DIRECTLY TO THIS REPOSITORY WILL BE AUTOMATICALLY OVERWRITTEN.

main.cpp

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+/*
+ * Copyright (c) 2020 Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "mbed.h"
+
+// Create a DigitalOutput object to toggle an LED whenever data is received.
+static DigitalOut led(LED1);
+
+// Create a UnbufferedSerial object with a default baud rate.
+static UnbufferedSerial serial_port(USBTX, USBRX);
+
+void on_rx_interrupt()
+{
+    char c;
+
+    // Toggle the LED.
+    led = !led;
+
+    // Read the data to clear the receive interrupt.
+    if (serial_port.read(&c, 1)) {
+        // Echo the input back to the terminal.
+        serial_port.write(&c, 1);
+    }
+}
+
+int main(void)
+{
+    // Set desired properties (9600-8-N-1).
+    serial_port.baud(9600);
+    serial_port.format(
+        /* bits */ 8,
+        /* parity */ SerialBase::None,
+        /* stop bit */ 1
+    );
+
+    // Register a callback to process a Rx (receive) interrupt.
+    serial_port.attach(&on_rx_interrupt, SerialBase::RxIrq);
+}

mbed-os.lib

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+https://github.com/ARMmbed/mbed-os/#9a8c9e2c297f64c805698d72cd541ff3cd7fe538