• FX2 memtest example fails if 0x9000 region touched
    I worked with memtest example of FX2 development board. I'm sure that keil monitor has been downloaded to 0xC000 (at UART interrupt vector C:0x3B there is a jump to 0xCA8D). My code and data resides...
  • source above 0x8000 not mapped for debugging
    I am using a Cygnal processor with 128KB Flash. For functions located above 32K (>0x8000) the debugger stops and gives me only the disassembly view. It does not offer the source at all. FYI: C51 v7...
  • Dallas 80c400 access above 0x800000
    I have hardware that needs to be accessed from 0xc00000 to 0xefffff. I have tried declaring it in an external ASM file and then to use it as a extern var in C. But this does not seem to work. Please...
  • Problem addressing XDATA memory above 100HEX
    When my code is compiled, it causes XDATA memory above 100HEX to be addressed with MOVX @R0,A rather than MOVX @DPTR,A instructions. This causes variables in the XDATA range 0 - 100HEX to be overwritten...
  • Could it be possible to Link RTX51 with BL51 directive OVERLAY?
    RTX51 is fully-preemptive multitasking RTOS. A task [task A] may voluntarily suspend to wait for the event in the middle of task. Before that event, other same priority task [task B] may be executed...