Maxim Integrated / Mbed 2 deprecated DeepCover Embedded Security in IoT

MAXREFDES143#: DeepCover Embedded Security in IoT Authenticated Sensing & Notification

Dependencies:   MaximInterface mbed

The MAXREFDES143# is an Internet of Things (IoT) embedded security reference design, built to protect an industrial sensing node by means of authentication and notification to a web server. The hardware includes a peripheral module representing a protected sensor node monitoring operating temperature and remaining life of a filter (simulated through ambient light sensing) and an mbed shield representing a controller node responsible for monitoring one or more sensor nodes. The design is hierarchical with each controller node communicating data from connected sensor nodes to a web server that maintains a centralized log and dispatches notifications as necessary. The mbed shield contains a Wi-Fi module, a DS2465 coprocessor with 1-Wire® master function, an LCD, LEDs, and pushbuttons. The protected sensor node contains a DS28E15 authenticator, a DS7505 temperature sensor, and a MAX44009 light sensor. The mbed shield communicates to a web server by the onboard Wi-Fi module and to the protected sensor node with I2C and 1-Wire. The MAXREFDES143# is equipped with a standard shield connector for immediate testing using an mbed board such as the MAX32600MBED#. The simplicity of this design enables rapid integration into any star-topology IoT network requiring the heightened security with low overhead provided by the SHA-256 symmetric-key algorithm.

More information about the MAXREFDES143# is available on the Maxim Integrated website.

Diff: Display.cpp

Revision:
6:b6bafd0a7013
Parent:
1:e1c7c1c636af
Child:
17:41be4896ed6d
--- a/Display.cpp	Wed Apr 20 20:13:33 2016 +0000
+++ b/Display.cpp	Thu May 12 14:40:14 2016 -0500
@@ -33,7 +33,7 @@
 
 #include <sstream>
 #include "Display.hpp"
-#include "mbed.h"
+#include "I2C.h"
 
 //LCD Commands
 //If the RS bit is set to logic 1, these display bytes are stored in the display RAM at the address specified by the data pointer. The data pointer is
@@ -68,13 +68,13 @@
 };
 
 // Convert a byte color value into the representation used by the MAX7306 PWM registers
-static std::uint8_t convertColorToPwmRegVal(std::uint8_t color)
+static uint8_t convertColorToPwmRegVal(uint8_t color)
 {
-  const std::uint8_t staticOffRegVal = 0x80; // LED is static off by setting to input
-  const std::uint8_t staticOnRegVal = 0x00; // LED is static on
-  const std::uint8_t minOnRegVal = 0x01; // LED on for minimum duty cycle
+  const uint8_t staticOffRegVal = 0x80; // LED is static off by setting to input
+  const uint8_t staticOnRegVal = 0x00; // LED is static on
+  const uint8_t minOnRegVal = 0x01; // LED on for minimum duty cycle
   
-  std::uint8_t regVal;
+  uint8_t regVal;
   if (color == 0x00) // Use static off for no color
   {
     regVal = staticOffRegVal;
@@ -93,7 +93,7 @@
   return regVal;
 }
 
-Display::Display(I2C & I2C_intf, uint8_t LCD_I2C_addr, uint8_t LED_driver_I2C_addr)
+Display::Display(mbed::I2C & I2C_intf, uint8_t LCD_I2C_addr, uint8_t LED_driver_I2C_addr)
   : m_I2C_intf(I2C_intf), m_LCD_I2C_addr(LCD_I2C_addr), m_LED_driver_I2C_addr(LED_driver_I2C_addr)
 {
   
@@ -107,8 +107,8 @@
 
 void Display::initializeLED_Driver(void)
 {
-  const std::uint8_t Configuration26 = 0x26;  //intial port state 0xEC
-  const std::uint8_t Configuration27 = 0x27;  //intial port state 0x8F
+  const uint8_t Configuration26 = 0x26;  //intial port state 0xEC
+  const uint8_t Configuration27 = 0x27;  //intial port state 0x8F
   
   //Intial mode
   //write to Configuration Register 0x26
@@ -189,7 +189,7 @@
   m_I2C_intf.stop();
 }
 
-void Display::writeCharacter(std::uint8_t character)
+void Display::writeCharacter(uint8_t character)
 {
   m_I2C_intf.start();
   m_I2C_intf.write(m_LCD_I2C_addr);
@@ -202,7 +202,7 @@
 {
   const char RETURN_CHAR = 0x16;
   
-  std::size_t length = text.length();
+  size_t length = text.length();
   if (length > lineLength)
     length = lineLength;
   
@@ -211,7 +211,7 @@
   m_I2C_intf.write(m_LCD_I2C_addr);
   m_I2C_intf.write(ControlByte_RS_Set);
   
-  for(std::size_t i = 0; i < length; i++)
+  for(size_t i = 0; i < length; i++)
   {
     if(text[i] != RETURN_CHAR)
       m_I2C_intf.write(text[i]);
@@ -220,7 +220,7 @@
   m_I2C_intf.stop();
 }
 
-void Display::setCursorPosition(Line line, std::size_t position)
+void Display::setCursorPosition(Line line, size_t position)
 {  
   if (position > (lineLength - 1)) // Set to last line character for values outside the upper bound
     position = (lineLength - 1);
@@ -257,7 +257,7 @@
     // Find split point
     std::istringstream messageStream(message);
     std::string word;
-    std::size_t splitIndex = 0;
+    size_t splitIndex = 0;
     do
     {
       if (word.length() > 0)