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: DS7505.hpp

Revision:
6:b6bafd0a7013
Parent:
1:e1c7c1c636af
Child:
13:6e753e78987c
--- a/DS7505.hpp	Wed Apr 20 20:13:33 2016 +0000
+++ b/DS7505.hpp	Thu May 12 14:40:14 2016 -0500
@@ -34,7 +34,7 @@
 #ifndef _DS7505_HPP
 #define _DS7505_HPP
 
-#include <cstdint>
+#include <stdint.h>
 
 namespace mbed
 {
@@ -54,11 +54,11 @@
   
   /// @param I2C_interface A configured I2C interface to use for communication.
   /// @param I2C_address Device bus address in mbed format.
-  DS7505(mbed::I2C & I2C_interface, std::uint8_t I2C_address);
+  DS7505(mbed::I2C & I2C_interface, uint8_t I2C_address);
   
   /// Set the resolution for temperature conversions.
   /// @param resolution Number of decimal bit from 1 to 4.
-  Result set_resolution(std::uint8_t resolution);
+  Result set_resolution(uint8_t resolution);
   
   /// Reads the current temperature with an exponent of 10^-2.
   /// @note Compatible with Bluetooth characteristic: org.bluetooth.characteristic.temperature.
@@ -103,21 +103,21 @@
   mutable Config m_current_config;
   
   mbed::I2C & m_I2C_interface;
-  std::uint8_t m_I2C_address;
+  uint8_t m_I2C_address;
   
   /// Returns the maximum time needed in ms for a sample at the specified resolution.
-  static std::uint8_t get_measure_delay_ms(Config_Resolution resolution);
+  static uint8_t get_measure_delay_ms(Config_Resolution resolution);
   
   /// Reads the current temperature via I2C.
   /// Assumes that the I2C register pointer is already set to the temperature register.
   /// @param sensor_data Output for raw data from DS7505 with upper and lower bytes combined.
   /// @returns True on success.
-  bool read_temp_sensor_data(std::uint16_t & sensor_data) const;
+  bool read_temp_sensor_data(uint16_t & sensor_data) const;
   
   /// Reads the current temperature with support for shutdown mode.
   /// @param sensor_data Output for raw data from DS7505 with upper and lower bytes combined.
   /// @returns Success or Hardware_Failure.
-  Result read_temp_sensor(std::uint16_t & sensor_data) const;
+  Result read_temp_sensor(uint16_t & sensor_data) const;
   
   /// Sets the I2C register pointer for the next operation.
   /// @param pointer_reg Desired register to set.
@@ -130,7 +130,7 @@
   /// @param write_val Value to write to the register.
   /// @returns True on success.
   /// @note Allow marking const since not public
-  bool write_register(Register write_reg, std::uint8_t write_val) const;
+  bool write_register(Register write_reg, uint8_t write_val) const;
   
   /// Writes the current configuration via I2C.
   /// @returns True on success.