• Difficulties with access to far memory
    Hi, I have the hardware classical 8051 with an external memory (RAM, FLASH). My program on the assembler. I don't use XBANKING.A51, L51_BANK.A51. Chips switching - simple switching of pins. It works...
  • Dallas DS80C400 far memory access
    I'm not succeeding in accessing memory through pointers with the 24bit contiguous DS80C400 memory model. I've looked at the support doc http://www.keil.com/support/docs/2172.htm and tried adding a pointer...
  • Accessing far memory, linking problem
    I have a serial EEPROM used as a far memory expansion. Writing and reading routines for an i2c bus are in a C-code: void start_write (void far * w_addr) { wait_smb_free (); smb_address = (unsigned...
  • far memory
    Hi All, I wrote the follwing: char far *fp; fp = (long) 0x1e00a5; *fp = 0x89; tmp = *fp; expecting to see value 0x89 at far address 0x1e00a5. on the debugger >D X:0x1e00a5 results...
  • Far Memory.
    The question is about far memory type. I use 8951RD2. I define: LX51 and AX51, use on-chip XRAM, support far memory type. The on-chip XRAM of RD2 is 1.7Kb. In listing far memory defined...