Thomas Gartlan / Mbed 2 deprecated DSP1_Timer_ex9_3

Using the Timer to test the maximum speed of the ADC and DAC

Dependencies:   mbed

main.cpp@0:23ff2f1bb142, 2017-03-07 (annotated)

Committer:
tgartlan
Date:
Tue Mar 07 12:56:43 2017 +0000
Revision:
0:23ff2f1bb142
Child:
1:6bb2d13644e8
Using the Timer to test the speed of the UART, ADC and DAC

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tgartlan 0:23ff2f1bb142 1 #include "mbed.h"
tgartlan 0:23ff2f1bb142 2 Timer t;
tgartlan 0:23ff2f1bb142 3 Serial pc(USBTX, USBRX);
tgartlan 0:23ff2f1bb142 4 AnalogOut Aout(p18);
tgartlan 0:23ff2f1bb142 5 AnalogIn Ain(p20);
tgartlan 0:23ff2f1bb142 6
tgartlan 0:23ff2f1bb142 7 DigitalOut myled(LED1);
tgartlan 0:23ff2f1bb142 8
tgartlan 0:23ff2f1bb142 9 int main() {
tgartlan 0:23ff2f1bb142 10 float value = 0;
tgartlan 0:23ff2f1bb142 11 unsigned short value2 = 0;
tgartlan 0:23ff2f1bb142 12 while(1) {
tgartlan 0:23ff2f1bb142 13 t.start();
tgartlan 0:23ff2f1bb142 14 pc.printf("Hello World!\n\r");
tgartlan 0:23ff2f1bb142 15 t.stop();
tgartlan 0:23ff2f1bb142 16 pc.printf("time take was %f seconds\n", t.read());
tgartlan 0:23ff2f1bb142 17 t.reset();
tgartlan 0:23ff2f1bb142 18 myled = 1;
tgartlan 0:23ff2f1bb142 19 wait(2);
tgartlan 0:23ff2f1bb142 20 myled = 0;
tgartlan 0:23ff2f1bb142 21 wait(2);
tgartlan 0:23ff2f1bb142 22 pc.printf("Testing ADC time!\n\r");
tgartlan 0:23ff2f1bb142 23 t.reset();
tgartlan 0:23ff2f1bb142 24 t.start();
tgartlan 0:23ff2f1bb142 25 //value = Ain;
tgartlan 0:23ff2f1bb142 26 value2 = Ain.read_u16();
tgartlan 0:23ff2f1bb142 27 t.stop();
tgartlan 0:23ff2f1bb142 28 pc.printf("ADC took %f seconds\n", t.read());
tgartlan 0:23ff2f1bb142 29 wait(2);
tgartlan 0:23ff2f1bb142 30 pc.printf("Testing DAC time!\n\r");
tgartlan 0:23ff2f1bb142 31 t.reset();
tgartlan 0:23ff2f1bb142 32 t.start();
tgartlan 0:23ff2f1bb142 33 Aout =value;
tgartlan 0:23ff2f1bb142 34 t.stop();
tgartlan 0:23ff2f1bb142 35 pc.printf("DAC took %f seconds\n", t.read());
tgartlan 0:23ff2f1bb142 36 wait(2);
tgartlan 0:23ff2f1bb142 37
tgartlan 0:23ff2f1bb142 38 }
tgartlan 0:23ff2f1bb142 39 }