Justin Jordan / Mbed OS SerialPlotter_Test

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main.cpp@0:cdcbb66ba497, 2017-09-07 (annotated)

Committer:
j3
Date:
Thu Sep 07 22:57:39 2017 +0000
Revision:
0:cdcbb66ba497
Child:
1:0951a80a60e2
init commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
j3 0:cdcbb66ba497 1 /*******************************************************************************
j3 0:cdcbb66ba497 2 * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
j3 0:cdcbb66ba497 3 *
j3 0:cdcbb66ba497 4 * Permission is hereby granted, free of charge, to any person obtaining a
j3 0:cdcbb66ba497 5 * copy of this software and associated documentation files (the "Software"),
j3 0:cdcbb66ba497 6 * to deal in the Software without restriction, including without limitation
j3 0:cdcbb66ba497 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
j3 0:cdcbb66ba497 8 * and/or sell copies of the Software, and to permit persons to whom the
j3 0:cdcbb66ba497 9 * Software is furnished to do so, subject to the following conditions:
j3 0:cdcbb66ba497 10 *
j3 0:cdcbb66ba497 11 * The above copyright notice and this permission notice shall be included
j3 0:cdcbb66ba497 12 * in all copies or substantial portions of the Software.
j3 0:cdcbb66ba497 13 *
j3 0:cdcbb66ba497 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
j3 0:cdcbb66ba497 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
j3 0:cdcbb66ba497 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
j3 0:cdcbb66ba497 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
j3 0:cdcbb66ba497 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
j3 0:cdcbb66ba497 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
j3 0:cdcbb66ba497 20 * OTHER DEALINGS IN THE SOFTWARE.
j3 0:cdcbb66ba497 21 *
j3 0:cdcbb66ba497 22 * Except as contained in this notice, the name of Maxim Integrated
j3 0:cdcbb66ba497 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
j3 0:cdcbb66ba497 24 * Products, Inc. Branding Policy.
j3 0:cdcbb66ba497 25 *
j3 0:cdcbb66ba497 26 * The mere transfer of this software does not imply any licenses
j3 0:cdcbb66ba497 27 * of trade secrets, proprietary technology, copyrights, patents,
j3 0:cdcbb66ba497 28 * trademarks, maskwork rights, or any other form of intellectual
j3 0:cdcbb66ba497 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
j3 0:cdcbb66ba497 30 * ownership rights.
j3 0:cdcbb66ba497 31 *******************************************************************************
j3 0:cdcbb66ba497 32 */
j3 0:cdcbb66ba497 33
j3 0:cdcbb66ba497 34
j3 0:cdcbb66ba497 35 //https://developer.mbed.org/users/borislav/notebook/serial-port-plotter/
j3 0:cdcbb66ba497 36
j3 0:cdcbb66ba497 37 #include "mbed.h"
j3 0:cdcbb66ba497 38
j3 0:cdcbb66ba497 39
j3 0:cdcbb66ba497 40 int32_t float_to_int(float f);
j3 0:cdcbb66ba497 41
j3 0:cdcbb66ba497 42
j3 0:cdcbb66ba497 43 int main()
j3 0:cdcbb66ba497 44 {
j3 0:cdcbb66ba497 45 DigitalOut rLed(LED_RED, 1);
j3 0:cdcbb66ba497 46 DigitalOut gLed(LED_GREEN, 1);
j3 0:cdcbb66ba497 47 DigitalOut bLed(LED_BLUE, 1);
j3 0:cdcbb66ba497 48
j3 0:cdcbb66ba497 49 DigitalOut leds[] = {rLed, gLed, bLed};
j3 0:cdcbb66ba497 50
j3 0:cdcbb66ba497 51 Serial debug(USBTX, USBRX);
j3 0:cdcbb66ba497 52 debug.baud(115200);
j3 0:cdcbb66ba497 53
j3 0:cdcbb66ba497 54 //const float PI = 3.14159265F;
j3 0:cdcbb66ba497 55 float angle[] = {0.0F, 120.0F, 240.0F};
j3 0:cdcbb66ba497 56 float sinScaled;
j3 0:cdcbb66ba497 57 int32_t data[3];
j3 0:cdcbb66ba497 58 uint32_t cnt = 0;
j3 0:cdcbb66ba497 59
j3 0:cdcbb66ba497 60 while(1)
j3 0:cdcbb66ba497 61 {
j3 0:cdcbb66ba497 62 //get data
j3 0:cdcbb66ba497 63 for(uint32_t idx = 0; idx < 3; idx++)
j3 0:cdcbb66ba497 64 {
j3 0:cdcbb66ba497 65 //get sin, scaled up and offset above 0
j3 0:cdcbb66ba497 66 sinScaled = (100 + (100.0F * sin(angle[idx]*(PI/180.0F))));
j3 0:cdcbb66ba497 67 data[idx] = float_to_int(sinScaled);
j3 0:cdcbb66ba497 68
j3 0:cdcbb66ba497 69 //inc angle, check for roll over
j3 0:cdcbb66ba497 70 angle[idx] += 1.0F;
j3 0:cdcbb66ba497 71 if(angle[idx] > 360.0F)
j3 0:cdcbb66ba497 72 {
j3 0:cdcbb66ba497 73 angle[idx] = 0.0F;
j3 0:cdcbb66ba497 74 }
j3 0:cdcbb66ba497 75 }
j3 0:cdcbb66ba497 76
j3 0:cdcbb66ba497 77 //plot
j3 0:cdcbb66ba497 78 debug.printf("$%d %d %d;", data[0], data[1], data[2]);
j3 0:cdcbb66ba497 79
j3 0:cdcbb66ba497 80 //blink some lights, just cause you have to
j3 0:cdcbb66ba497 81 leds[cnt % 3] = !leds[cnt % 3];
j3 0:cdcbb66ba497 82 cnt++;
j3 0:cdcbb66ba497 83
j3 0:cdcbb66ba497 84 //wait a bit
j3 0:cdcbb66ba497 85 wait(0.01F);
j3 0:cdcbb66ba497 86 }
j3 0:cdcbb66ba497 87 }
j3 0:cdcbb66ba497 88
j3 0:cdcbb66ba497 89
j3 0:cdcbb66ba497 90 int32_t float_to_int(float f)
j3 0:cdcbb66ba497 91 {
j3 0:cdcbb66ba497 92 int32_t i;
j3 0:cdcbb66ba497 93
j3 0:cdcbb66ba497 94 if (f >= 0.0F)
j3 0:cdcbb66ba497 95 {
j3 0:cdcbb66ba497 96 i = static_cast<int32_t>(f + 0.5F);
j3 0:cdcbb66ba497 97 }
j3 0:cdcbb66ba497 98 else
j3 0:cdcbb66ba497 99 {
j3 0:cdcbb66ba497 100 i = static_cast<int32_t>(f - 0.5F);
j3 0:cdcbb66ba497 101 }
j3 0:cdcbb66ba497 102
j3 0:cdcbb66ba497 103 return i;
j3 0:cdcbb66ba497 104 }