• 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...
  • Disable/remove security bits in P89C51RD2
    Hi, I am working with P89C51RD2HBA(PLCC package). When I start to download .hex files using flash magic , "Security bit 1 is set" message is displayed. And from ISP->ReadSecurity, I come...
  • code memory in bytes or bits
    I am using UVision2 V2.40a Version compiler. It has generated .m52 file & given below in information at the end of the file. Program Size: data=122.1 xdata=984 code=26914 LINK/LOCATE RUN COMPLETE...
  • code memory in bytes or bits
    I am using UVision2 V2.40a Version compiler. It has generated .m52 file & given below in information at the end of the file. Program Size: data=122.1 xdata=984 code=26914 LINK/LOCATE RUN COMPLETE...