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
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);
}
}
Files at revision 13:c17c532bc4f8
| Name | Size | Actions |
|---|---|---|
| [up] | ||
| Buffer.lib | 59 | Revisions Annotate |
| BufferedSerial.cpp | 4196 | Revisions Annotate |
| BufferedSerial.h | 4832 | Revisions Annotate |
| tmp.txt | 0 | Revisions Annotate |
Sam Grove

