Setting Non-Secure Memory from Secure Memory on TrustZone for Armv8-m

Hello, I have a very simple program on TrustZone enabled Cortex M33 core; - Start Secure & Privileged state - Set an SRAM Memory Region as Non-Secure using SAU - Set a WORD Value in Non-Secure World from...
Setting Non-Secure Memory from Secure Memory on TrustZone for Armv8-m

Hello, I have a very simple program on TrustZone enabled Cortex M33 core; - Start Secure & Privileged state - Set an SRAM Memory Region as Non-Secure using SAU - Set a WORD Value in Non-Secure World from...
AT89C51 HSB Security Bits

Hi, I am trying to unlock the security on a AT89c51 processor to call subroutines in external flash. When I do an LCALL from internal flash and a RET from external flash, the processor reboots...
SECURITY LOCK BITS >> LB2

Hello, We are using Philips 89C52X2BN Micro controller with external 128K EPROM with Code Banking, We keep very little code in micro controller with jump instruction to external eprom. Recently...
AT89C51 HSB Security Bits

Hi, I am trying to unlock the security on a AT89c51 processor to call subroutines in external flash. When I do an LCALL from internal flash and a RET from external flash, the processor reboots...