Cypress PSoC 5LP Protection Unlock: MCU Decryption Guide
2026-09-26 17:00:00 | pcba-mkr
Cypress PSoC 5LP uses flash protection. PSoC decryption unlocks it to recover firmware.
PSoC 5LP Protection:
- Flash protection blocks readback.
- Debug (JTAG/SWD) can be disabled.
- Protection registers lock after boot.
- Program memory is encrypted on access.
PSoC 5LP Decryption Methods:
1. Voltage Glitching: glitch VDD during lock check.
2. Clock Glitching: fault flash controller.
3. Decapsulation: read silicon die directly.
4. Side-Channel: power analysis during access.
PSoC 5LP is used in mixed-signal designs, HMI, and sensor interfaces.
