BufferedSerial - Inherit from Serial and use software buffers for …

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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);
     }
 }

tmp.txt@13:c17c532bc4f8, 2019-02-20 (annotated)

Committer:: sam_grove
Date:: Wed Feb 20 01:29:28 2019 +0000
Revision:: 13:c17c532bc4f8

Eliminate warnings with Mbed 2 version 131 and Mbed OS 5.2.0 and newer. Added error messages to help if incompatible versions are identified (best effort)