• 24bit XDATA pointer in Dallas DS5240
    How can I access the XDATA memory block after 64Kbypes in Dallas DS5240 environment? I now use 24bit contiguous mode to compile the program and I want to access a memory address in xdata 0x200000.......
  • Dallas DS5240 vs C51 v6.11
    I now use Keil C51 v6.11 to develop the firmware that run on Dallas DS5240. However, it sounds quite strange. Sometimes the compiled code can run correctly. However, it become incorrect when I have just...
  • Dallas 390 contiguous mode problems
    Is anyone else out there having problems with Dallas 80c390 contiguous mode? We are using Keil c51 version 6.14 and the PK51 development system. (Lx51 linker, Ax51 assembler) I am a little bit confused...
  • Dallas contiguous mode : two doubts
    Hi, I have the following two doubts: 1) When should I use Dallas contiguous mode:512k vs Dallas contiguous mode: 16M ? 512k is enough for me but I do not know if I get some advantages with 16M...
  • function pointers in Dallas 390 contiguous mode
    I was struggling with the function pointer in Dallas 390 contiguous mode. It seems that the linker might not relocate the correct address in function pointer. Check the following code: void Test(void...