#include <secure32.h> // Called from reset vector before any application code void secure32_init(void) // 1. Lock flash configuration registers secure32_lock_flash();
// 3. Enable MPU and abort on violation secure32_mpu_enable(MPU_PRIVILEGED_DEFAULT); secure32
// 2. Configure MPU regions: // Region 0: 0x00000000 - 0x0000FFFF (secure monitor, R-X) // Region 1: 0x20000000 - 0x2000FFFF (secure heap, RW-) // Region 2: 0x08000000 - 0x0803FFFF (firmware, R-X) secure32_mpu_set_region(0, 0x00000000, 0xFFFF, MPU_RX); secure32_mpu_set_region(1, 0x20000000, 0xFFFF, MPU_RW); secure32_mpu_set_region(2, 0x08000000, 0x3FFFF, MPU_RX); #include <secure32
April 14, 2026 Document version: 1.0
It’s worth noting that is not a widely recognized standard or official protocol (unlike, say, "Secure64" in some niche architectures, or "Secure32" as a potential branding term). However, based on common patterns in cybersecurity, software versioning, and hardware security, I’ve drafted a full explanatory and technical text that could serve as a product specification, a security advisory, or a conceptual whitepaper section. Configure MPU regions: // Region 0: 0x00000000 -