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SpeedTest.ino
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SpeedTest.ino
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/*
* SpeedTest - RTT speed test
*
* This program requires a "Segger" brand debugger probe to run.
*/
#include <Arduino.h>
#include <RTTStream.h>
RTTStream rtt;
const int count = 5000;
void setup()
{
rtt.println();
rtt.println("rtt speed test");
rtt.blockUpBufferFull();
unsigned long startTime = millis();
unsigned long currentTime = millis();
unsigned long overhead = currentTime - startTime;
String str;
for (char ch = 0; ch < 255; ch++)
if (isPrintable(ch))
str += ch;
startTime = millis();
for (int i = 0; i < count; i++)
rtt.print(str);
currentTime = millis();
unsigned long t = currentTime - startTime - overhead;
long speed = count * str.length() * 1000 / t;
rtt.println();
rtt.println("rtt speed test");
rtt.print("speed: ");
rtt.print(speed);
rtt.println(" chars/s");
}
void loop()
{
}
/* not truncated */