SparkFun Appears to Defend Your Firmware with Its New MicroMod Teensy Processor Board


SparkFun has launched a brand new Teensy-based MicroMod Processor board, which brings with it a considerably uncommon characteristic lacking from the unique mannequin: firmware copy safety, stopping it from being learn again out as soon as flashed.

“The SparkFun MicroMod Teensy Processor with Copy Safety makes use of the identical {hardware} because the ‘Lockable’ Teensy from PJRC,” SparkFun’s Chris McCarty explains. “Entrepreneurs care about preserving their firmware from being copied by opponents and the method of completely locking safe mode might be mentally traumatic. So we up to date the title to higher emphasize the first buyer profit: ‘copy safety.'”

The board, which is designed to fit right into a MicroMod service board as its processor, options the identical core specs as SparkFun’s earlier MicroMod Teensy Processor: an Arm Cortex-M7 microcontroller working at 600MHz, 1MB of RAM, 16MB of flash, and connectivity together with no fewer than seven {hardware} UARTs, 4 I2C buses, two SPI buses, CAN bus, and 12 general-purpose enter/output (GPIO) pins.

What makes the brand new board stand other than the unique, although, is its skill to guard the firmware with which it has been flashed. “When compiling, your program is encrypted,” McCarty explains. “When run, the IMXRT Bus Encryption Engine offers on-the-fly decryption as your program executes. If an attacker removes and reads the flash reminiscence chip from [the board], makes an attempt to seize the USB communication from Teensy Loader, or copies the EHEX file Teensy Loader opens, they get solely an encrypted copy of your program.”

The brand new processor board is offered on the SparkFun retailer now at $24.95 earlier than quantity reductions, a $3.45 premium over the unique MicroMod Teensy Processor Board.


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