Description
This is the lockable version of Teensy 4.1
Secure mode can only be activated on Lockable Teensy. While Standard and Lockable Teensy are identical hardware, the permanent fuse configuation differs. Standard Teensy does not allow changes to fuses affecting boot or other critical configuration. Standard Teensy is meant to safe from "bricking" by programs which could write to fuse memory, but this safety means secure mode can not be activated. Standard Teensy can have a key written and can run encrypted code, but encryption alone is not fully secure. Only Lockable Teensy provides proper code security, and only when a key is written and secure mode is locked.
Technical Information:
- IMXRT1060 Manual - All the useful peripheral programming info
- IMXRT1060 Datasheet - Only the electrical specifications
- IMXRT1060 Errata Rev B - Applies to Teensy 4.1 after July 2021
- IMXRT1060 Errata Rev A - Applies to Teensy 4.1 before April 2021
- W25Q64JV-DTR Datasheet - Flash memory chip
- DP83825i Datasheet - Ethernet PHY chip
- ARM Cortex-M7 Reference Manual
- ARM v7-M Architecture Reference Manual - ARM Processor low-level details - free, but difficult to read
- Definitive Guide to ARM Cortex-M3 & Cortex-M4 (book) - ARM Processor low-level details - easier to read
- US Section 889 Statement
- RoHS Certificate of Compliance
- REACH Declaration of Conformity
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This depends on where you are located. Once the order has been handed over to UPS, the delivery time in Germany is approx. 2-3 days, within Europe approx. 1 week.
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