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:
1:57a11fb5d529
Parent:
0:a977d0a3d81e
Child:
2:7e8a450a9101
diff -r a977d0a3d81e -r 57a11fb5d529 BufferedSerial.h
--- a/BufferedSerial.h	Thu May 23 19:31:30 2013 +0000
+++ b/BufferedSerial.h	Thu May 23 23:47:04 2013 +0000
@@ -78,6 +78,7 @@
  
     void rxIrq(void);
     void txIrq(void);
+    void prime(void);
     
 public:
     /** Create a BufferedSerial port, connected to the specified transmit and receive pins