Sam Grove
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);
}
}
Revision 14:7e5e866edd3d, committed 2019-02-20
- Comitter:
- sam_grove
- Date:
- Wed Feb 20 01:34:41 2019 +0000
- Parent:
- 13:c17c532bc4f8
- Commit message:
- Discard random text file and update version check help message.
Changed in this revision
| BufferedSerial.h | Show annotated file Show diff for this revision Revisions of this file |
| tmp.txt | Show diff for this revision Revisions of this file |
--- a/BufferedSerial.h Wed Feb 20 01:29:28 2019 +0000 +++ b/BufferedSerial.h Wed Feb 20 01:34:41 2019 +0000 @@ -30,7 +30,7 @@ #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. +#error "BufferedSerial version 13 and newer 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
