Sam Grove / BufferedSerial

Inherit from Serial and use software buffers for TX and RX. This allows the UART peripherals to operate in a IRQ driven mode. Overrides most (but not all) stdio functions as Serial did

Dependencies:   Buffer

Dependents:   buffered_serial_test BLE_Police_HRM evena_BLE_Police_HRM df-2014-workshop-rfid-case-generator-k64f ... more

Example

 #include "mbed.h"
 #include "BufferedSerial.h"

 BufferedSerial pc(USBTX, USBRX);

 int main()
 {
     pc.baud(115200);
   
     while(1)
     {
         Timer s;
       
         s.start();
         pc.printf("Hello World - buff\n");
         int buffered_time = s.read_us();
         wait(0.1f); // give time for the buffer to empty
       
         s.reset();
         printf("Hello World - poll\n");
         int polled_time = s.read_us();
         s.stop();
         wait(0.1f); // give time for the buffer to empty
       
         pc.printf("printf buffered took %d us\n", buffered_time);
         pc.printf("printf polled took %d us\n", polled_time);
         wait(0.5f);
     }
 }

Diff: BufferedSerial.h

Revision:
13:c17c532bc4f8
Parent:
12:a0d37088b405
Child:
14:7e5e866edd3d
diff -r a0d37088b405 -r c17c532bc4f8 BufferedSerial.h
--- a/BufferedSerial.h	Mon Mar 07 21:10:27 2016 +0000
+++ b/BufferedSerial.h	Wed Feb 20 01:29:28 2019 +0000
@@ -27,6 +27,12 @@
 #include "mbed.h"
 #include "MyBuffer.h"
 
+#if (MBED_MAJOR_VERSION == 5) && (MBED_MINOR_VERSION >= 2)
+#elif (MBED_MAJOR_VERSION == 2) && (MBED_PATCH_VERSION > 130)
+#else
+#error "BufferedSerial version 13 requires use of Mbed OS 5.2.0 and newer or Mbed 2 version 130 and newer. Use BufferedSerial version 12 and older or upgrade the Mbed version.
+#endif
+
 /** A serial port (UART) for communication with other serial devices
  *
  * Can be used for Full Duplex communication, or Simplex by specifying