Maxim Integrated / Mbed OS MAX1472_RF_Transmitter_Demo

MAX1472 RF Transmitter demo code

Dependencies:   max32630fthr USBDevice

main.cpp@10:d46390b7aa64, 2020-09-04 (annotated)

Committer:
tlyp
Date:
Fri Sep 04 18:04:36 2020 +0000
Revision:
10:d46390b7aa64
Parent:
9:02c5adb483c8 
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phonemacro 9:02c5adb483c8 1 /*******************************************************************************
tlyp 10:d46390b7aa64 2 * Copyright (C) Maxim Integrated Products, Inc., All Rights Reserved.
phonemacro 9:02c5adb483c8 3 *
phonemacro 9:02c5adb483c8 4 * Permission is hereby granted, free of charge, to any person obtaining a
phonemacro 9:02c5adb483c8 5 * copy of this software and associated documentation files (the "Software"),
phonemacro 9:02c5adb483c8 6 * to deal in the Software without restriction, including without limitation
phonemacro 9:02c5adb483c8 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
phonemacro 9:02c5adb483c8 8 * and/or sell copies of the Software, and to permit persons to whom the
phonemacro 9:02c5adb483c8 9 * Software is furnished to do so, subject to the following conditions:
phonemacro 9:02c5adb483c8 10 *
phonemacro 9:02c5adb483c8 11 * The above copyright notice and this permission notice shall be included
phonemacro 9:02c5adb483c8 12 * in all copies or substantial portions of the Software.
phonemacro 9:02c5adb483c8 13 *
phonemacro 9:02c5adb483c8 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
phonemacro 9:02c5adb483c8 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
phonemacro 9:02c5adb483c8 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
phonemacro 9:02c5adb483c8 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
phonemacro 9:02c5adb483c8 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
phonemacro 9:02c5adb483c8 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
phonemacro 9:02c5adb483c8 20 * OTHER DEALINGS IN THE SOFTWARE.
phonemacro 9:02c5adb483c8 21 *
phonemacro 9:02c5adb483c8 22 * Except as contained in this notice, the name of Maxim Integrated
phonemacro 9:02c5adb483c8 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
phonemacro 9:02c5adb483c8 24 * Products, Inc. Branding Policy.
phonemacro 9:02c5adb483c8 25 *
phonemacro 9:02c5adb483c8 26 * The mere transfer of this software does not imply any licenses
phonemacro 9:02c5adb483c8 27 * of trade secrets, proprietary technology, copyrights, patents,
phonemacro 9:02c5adb483c8 28 * trademarks, maskwork rights, or any other form of intellectual
phonemacro 9:02c5adb483c8 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
phonemacro 9:02c5adb483c8 30 * ownership rights.
phonemacro 9:02c5adb483c8 31 *******************************************************************************
tlyp 10:d46390b7aa64 32
tlyp 10:d46390b7aa64 33 This is code for the MAX1472 RF Transmitter EV-Kit. This program will record a
tlyp 10:d46390b7aa64 34 temperature fom the MAX30208 EV-Kit, encrypt the data using the user-generated
tlyp 10:d46390b7aa64 35 Symmetric key, apply forward error correction (FEC) encoding, and then send the
tlyp 10:d46390b7aa64 36 message via the MAX1472 transmitter.
tlyp 10:d46390b7aa64 37
tlyp 10:d46390b7aa64 38 Hardware Setup and connections:
tlyp 10:d46390b7aa64 39
tlyp 10:d46390b7aa64 40 MAX32630FTHR-> MAX1472 Ev-Kit
tlyp 10:d46390b7aa64 41
tlyp 10:d46390b7aa64 42 3.3V -> VDD
tlyp 10:d46390b7aa64 43 GND -> VSS
tlyp 10:d46390b7aa64 44 P3_1 -> Data_In
tlyp 10:d46390b7aa64 45 P5_2 -> ENABLE
tlyp 10:d46390b7aa64 46
tlyp 10:d46390b7aa64 47 *******************************************************************************
tlyp 10:d46390b7aa64 48 MAX32630FTHR-> MAX30208 Ev-Kit
tlyp 10:d46390b7aa64 49
tlyp 10:d46390b7aa64 50 1.8V -> VIN
tlyp 10:d46390b7aa64 51 GND -> GND
tlyp 10:d46390b7aa64 52 P3_4 -> SDA
tlyp 10:d46390b7aa64 53 P3_5 -> SCL
tlyp 10:d46390b7aa64 54
tlyp 10:d46390b7aa64 55 *******************************************************************************
phonemacro 9:02c5adb483c8 56 */
tlyp 10:d46390b7aa64 57
switches 0:60a522ae2e35 58 #include "mbed.h"
switches 2:57500e991166 59 #include "max32630fthr.h"
switches 1:6923b075c8d7 60 #include "USBSerial.h"
tlyp 10:d46390b7aa64 61 #include "MAX30208.h"
tlyp 10:d46390b7aa64 62 #include "ForwardErrCorr.h"
switches 0:60a522ae2e35 63
switches 6:684c51f32c1d 64 MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
switches 0:60a522ae2e35 65
tlyp 10:d46390b7aa64 66 //UART Port for Sending data
tlyp 10:d46390b7aa64 67 RawSerial uart(P3_1,P3_0);//tx,rx
tlyp 10:d46390b7aa64 68
tlyp 10:d46390b7aa64 69
tlyp 10:d46390b7aa64 70 I2C i2c(P3_4, P3_5); //sda,scl
tlyp 10:d46390b7aa64 71 MAX30208 TempSensor(i2c, 0x50); //Temperature Sensor Object for reading temperature data
tlyp 10:d46390b7aa64 72
tlyp 10:d46390b7aa64 73 #define SymmetricKey "RfIsCoOl" //Set Symmetric Key here -- Make sure it is identical to receiver
tlyp 10:d46390b7aa64 74 char TransTable[] = {0x1F,0x18,0x06,0x01}; //Used to translate data for FEC -- Make sure it is identical to receiver
tlyp 10:d46390b7aa64 75 Translator transTx(SymmetricKey, TransTable); //Initialize Encoder
tlyp 10:d46390b7aa64 76
tlyp 10:d46390b7aa64 77 DigitalOut rLED(LED1);
tlyp 10:d46390b7aa64 78 DigitalOut gLED(LED2);
tlyp 10:d46390b7aa64 79 DigitalOut bLED(LED3);
tlyp 10:d46390b7aa64 80
tlyp 10:d46390b7aa64 81 DigitalIn sw1(SW1); //Trigger for sending data
tlyp 10:d46390b7aa64 82 DigitalOut Enable(P5_2); //Enable Transmitter
tlyp 10:d46390b7aa64 83
tlyp 10:d46390b7aa64 84 char DEVICETYPE = 'T'; //Set Device Type
tlyp 10:d46390b7aa64 85 char DEVICEID = 0x01; //Set the Device ID
tlyp 10:d46390b7aa64 86
tlyp 10:d46390b7aa64 87 //******************************************************************************
switches 1:6923b075c8d7 88
tlyp 10:d46390b7aa64 89 /**
tlyp 10:d46390b7aa64 90 * @brief Record and read temperature from MAX30208
tlyp 10:d46390b7aa64 91 * @param TempSensor - Refrence to MAX30208 temp sensor object
tlyp 10:d46390b7aa64 92 * @param &value[OUT]- Address to store read temperature at
tlyp 10:d46390b7aa64 93 * @return 0 on success, 1 on failure due to improper data record or read
tlyp 10:d46390b7aa64 94 */
tlyp 10:d46390b7aa64 95 int ReadData(MAX30208 TempSensor, uint16_t &value){
tlyp 10:d46390b7aa64 96 if (TempSensor.takeDataMeasurment() != 0){
tlyp 10:d46390b7aa64 97 printf("Error Taking data Meaurment\r\n");
tlyp 10:d46390b7aa64 98 return(1);
tlyp 10:d46390b7aa64 99 }
tlyp 10:d46390b7aa64 100 wait_ms(50); //max temp record time is 50ms
tlyp 10:d46390b7aa64 101 if (TempSensor.readData(value) !=0){
tlyp 10:d46390b7aa64 102 printf("Error reading temperature Data\r\n");
tlyp 10:d46390b7aa64 103 return(1);
tlyp 10:d46390b7aa64 104 }
tlyp 10:d46390b7aa64 105 return(0);
tlyp 10:d46390b7aa64 106 }
tlyp 10:d46390b7aa64 107
tlyp 10:d46390b7aa64 108 //******************************************************************************
switches 0:60a522ae2e35 109
tlyp 10:d46390b7aa64 110 /*
tlyp 10:d46390b7aa64 111 * @brief Begin Communication with warm up bytes and device type/id
tlyp 10:d46390b7aa64 112 */
tlyp 10:d46390b7aa64 113 void comInit(Translator trans){
tlyp 10:d46390b7aa64 114 uart.putc(0xFF); //Initializer bytes to "warm-up" the Peak Detector cicuitry of MAX1473 Receiver
tlyp 10:d46390b7aa64 115 uart.putc(0xFF);
tlyp 10:d46390b7aa64 116 uart.putc(0x00);
tlyp 10:d46390b7aa64 117 uart.putc('b'); //Packet start character
tlyp 10:d46390b7aa64 118 uart.putc(DEVICETYPE); //Send Device Type
tlyp 10:d46390b7aa64 119 uart.putc(DEVICEID); //Send Device ID
tlyp 10:d46390b7aa64 120 }
tlyp 10:d46390b7aa64 121
tlyp 10:d46390b7aa64 122 //******************************************************************************
tlyp 10:d46390b7aa64 123
tlyp 10:d46390b7aa64 124 /**
tlyp 10:d46390b7aa64 125 * @brief Send data and end transmission
tlyp 10:d46390b7aa64 126 * @param EncryptedData[IN] - 8 bytes of encryted data to send via UART connection
tlyp 10:d46390b7aa64 127 */
tlyp 10:d46390b7aa64 128 void comData(char *EncryptedData){
tlyp 10:d46390b7aa64 129 for(int i=0;i<8;i++){
tlyp 10:d46390b7aa64 130 uart.putc(EncryptedData[i]); //Send all of the encrypted data
tlyp 10:d46390b7aa64 131 }
tlyp 10:d46390b7aa64 132 uart.putc('c'); //End of packet character
tlyp 10:d46390b7aa64 133 uart.send_break();
tlyp 10:d46390b7aa64 134 }
tlyp 10:d46390b7aa64 135
tlyp 10:d46390b7aa64 136 //******************************************************************************
tlyp 10:d46390b7aa64 137
switches 0:60a522ae2e35 138 int main()
switches 0:60a522ae2e35 139 {
tlyp 10:d46390b7aa64 140 wait(1);
tlyp 10:d46390b7aa64 141 uart.baud(9600);
tlyp 10:d46390b7aa64 142 printf("Starting Transmitter Program\r\n\r\n");
tlyp 10:d46390b7aa64 143
switches 2:57500e991166 144 rLED = LED_ON;
switches 2:57500e991166 145 gLED = LED_ON;
switches 2:57500e991166 146 bLED = LED_OFF;
switches 0:60a522ae2e35 147
switches 2:57500e991166 148 rLED = LED_OFF;
tlyp 10:d46390b7aa64 149
tlyp 10:d46390b7aa64 150 //Start MAX30208 temperature sensor in factor default
tlyp 10:d46390b7aa64 151 TempSensor.resetDevice();
tlyp 10:d46390b7aa64 152
tlyp 10:d46390b7aa64 153 //Turn off Transmitter
tlyp 10:d46390b7aa64 154 Enable = 0;
switches 1:6923b075c8d7 155
switches 1:6923b075c8d7 156 while(1) {
tlyp 10:d46390b7aa64 157
tlyp 10:d46390b7aa64 158 //Record a temperature and send the encrypted data each time the on-board button is pressed
tlyp 10:d46390b7aa64 159 if(sw1==0){
tlyp 10:d46390b7aa64 160
tlyp 10:d46390b7aa64 161 //Enable Transmitter
tlyp 10:d46390b7aa64 162 Enable = 1;
tlyp 10:d46390b7aa64 163
tlyp 10:d46390b7aa64 164 //Read a new temperature
tlyp 10:d46390b7aa64 165 uint16_t tempData;
tlyp 10:d46390b7aa64 166 if(ReadData(TempSensor,tempData) !=0){
tlyp 10:d46390b7aa64 167 printf("Error reading data!\r\n");
tlyp 10:d46390b7aa64 168 }
tlyp 10:d46390b7aa64 169
tlyp 10:d46390b7aa64 170 //Encrypt Temperature Data
tlyp 10:d46390b7aa64 171 char EncryptedData[8];
tlyp 10:d46390b7aa64 172 printf("Original Data: %i\r\n", tempData);
tlyp 10:d46390b7aa64 173 transTx.Encrypt(tempData,EncryptedData);
tlyp 10:d46390b7aa64 174 printf("Encrypted Data:\r\n");
tlyp 10:d46390b7aa64 175 for(int i=0;i<8;i++){
tlyp 10:d46390b7aa64 176 printf("%c ",EncryptedData[i]);
tlyp 10:d46390b7aa64 177 }
tlyp 10:d46390b7aa64 178 printf("\r\n\r\n");
tlyp 10:d46390b7aa64 179
tlyp 10:d46390b7aa64 180 //Initialize Communication
tlyp 10:d46390b7aa64 181 comInit(transTx);
tlyp 10:d46390b7aa64 182
tlyp 10:d46390b7aa64 183 //Send Encrypted Data
tlyp 10:d46390b7aa64 184 comData(EncryptedData);
tlyp 10:d46390b7aa64 185
tlyp 10:d46390b7aa64 186 //Turn off Transmitter
tlyp 10:d46390b7aa64 187 Enable = 0;
switches 0:60a522ae2e35 188
tlyp 10:d46390b7aa64 189 wait_ms(500); //button debounce
tlyp 10:d46390b7aa64 190 }//if
tlyp 10:d46390b7aa64 191 }//while
tlyp 10:d46390b7aa64 192 }//main
tlyp 10:d46390b7aa64 193