PEmicro's new ProCryption Security feature on Cyclone programmers allows for easy-to-use custom encryption of programming images as well as control over how and when programming images are used. By taking advantage of these security features a user can send their programming images electronically with the confidence that their valuable IP will remain safe and only usable on their own Cyclone programmers. It is also possible to control how many times an image is programmed and when, such that unwarranted programming does not occur. Once implemented, these security measures are also easy to maintain.  

With ProCryption Security, Cyclone users can:

1. Create RSA/AES encrypted programming images (eSAP images) that use their own uniquely generated ImageKey(s). These programming images may only be used on Cyclones that are pre-configured with the same ImageKey(s). 
2. Restrict the use of programming images by programming count and date range. 

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This blog post gives a step-by-step example of a company that wants to use the ProCryption Security features of custom encryption and image limitations to: 

• Secure their programming images/IP from their own source computers all the way to their own Cyclone programmers at an external manufacturer
• Limit production programming to occur only in a specific date range
• Generate their own custom Encryption Keys and provision Cyclones with them

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The Cyclone FX comes standard with many advanced features which aren't available by default on the Cyclone LC series of programmers. PEmicro offers a licensing mechanism to add three of these advanced Cyclone FX features to the Cyclone LC : ProCryption programming protection and encryption, Advanced Automation, and external SD card storage for images. 

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The Cyclone Control SDK is a software development kit with a comprehensive API that allows custom applications to control multiple Cyclones in stand alone programming operations and to read/update Cyclone settings. This blog post demonstrates the use of the SDK in the Microsoft Visual C# language. 

NOTE: The examples in this blog are shown in Microsoft Visual C#. The Cyclone Control SDK includes interface code and demo applications for GCC, Microsoft Visual C, Microsoft Visual C#, Delphi/FPC, and Labview.

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PEmicro supports a wide selection of STMicroelectronics' STM32 device families. Many STM32 devices include a set of user configurable option bytes that can control features such as HW/SW watchdog, read protection, and write protection. These options give users a convenient way of changing the settings of their device. Configuring option bytes of a STM32Fx or STM32Lx device is made easy with our PROG software and Cyclone Image Creation Utility software. 

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Some Microchip/Atmel's SAM-Series devices allow rows of non-volatile flash memory (NVM) to be configured as EEPROM, so that users can treat NVM pages as EEPROM with Atmel's software, and let Atmel's back-end take care of keeping peripheral data safe.

PEmicro's Cyclone in-system programmers and PROGACMP flash programming software each allow users to set up NVM main flash space as emulated EEPROM by programming the EEPROM FUSE bits in the device's User Row. Our latest Microchip/Atmel algorithms support single-byte writes to the User Row, to preserve adjacent User Row settings.

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ARMv7-M devices have the ability to halt when specified exceptions occur. If exception catching is enabled, the processor will halt when a user's code hits the corresponding fault handler. Exception catching serves as an aid to development by alerting users in real-time about exceptions that occur in their code.

When installed in NXP's MCUXpresso IDE, PEmicro's GDB Server plug-ins from v3.96 onward include options for exception catching, and return information about the exceptions that have occurred.

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PEmicro considers the privacy of its customers' intellectual property to be of utmost importance. Silicon Labs' 32-bit devices feature an Authentication Access Port (AAP) as part of their security features, and for some of these devices, a debugger may have a limited time to access this port when communicating with an unsecured device. With that in mind, recent PROG software (v6.94) and Cyclone firmware (v10.04) releases now provide support to secure, unsecure, and mass-erase Silicon Labs devices with these debug time-sensitivities, which can help users keep their valuable data safe.

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PEmicro has expanded its ARM® device support of Cypress’ current PSoC 4, PSoC 5, and PSoC 6 devices. 

PEmicro's popular Multilink debug probes and Cyclone ISP programmers now include support for the following Cypress device families: 4000, 4000S, 4100, 4100S, 4100PS, 4100S Plus, 4100M, 4100BLE, 4200, 4200M, 4200L, 4XX8_BLE, 5200, 5400, 5600, and 5800, as well as Cypress’ new PSoC 6xx6 and 6xx7 series microcontrollers. 

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The safety of users’ intellectual property is a top priority for PEmicro. Utilizing the “Chip Protect” function of processors prevents data from being read or written from an external source, which helps keep your data secure. PEmicro is constantly expanding its compatibility with different manufacturers’ device security methods. Each manufacturer may employ multiple methods for securing or unsecuring a processor, so the goal is to make this process as simple and easy as possible for the user.

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Cypress’ PSoC5 line of microcontrollers are a great option for high performance at a low cost. The PSoC 5 provides an Error Correcting Code (ECC) feature to help detect errors in operations that manipulate the flash memory. The ECC peripheral can be enabled or disabled by writing to the Nonvolatile Latch (NVL). The advantage of disabling ECC is that each row of flash gains 32 bytes for data storage, extending the row from 256 to 288 bytes.

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PEmicro is constantly expanding its support for device security methods. The Cypress’ PSoC 4 Cortex-M0 processor-based microcontrollers have a few device features to prevent external flash access. Enabling device security features on products prevents third party sources from accessing or manipulating program code and data. This post aims to detail the secure and unsecure process for Cypress PSoC 4 devices. 

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