• accessing external data and program memory
    Whenever ,an external data memory is accessed, by using DPTR, the corresponding DPL and DPH values has to be appear in the Low order address bus (PO) and high order address Bus(P2). As per the following...
  • accessing bitwise data in a data buffer
    hi all, iam a new to embedded programming and keil software. i am struck with a problem how to access a bit in a data buffer. the algo i need to implement is data_buf of 32 bits is stored in the...
  • access to Xtal value in program
    hello i look to some way for access Xtal value in my program . when i start new project in keil , in "Options for Target..." window i add Xtal Frequency in hertz . (it is 18.432 for at91sam usually...
  • External data memory access
    I'm trying to access to a non-volatile memory DS1330YP from C167CR-LM and I'm trying to save absolute variables making defines like this: #define x MVAR (uword, 0x80000) I've configured the start...
  • Accessing Data RAM in P89LPC931
    Hi I am trying to store data into the EEPROM . I used the sample code available in this website. But the code does not work .Can anyone find out the mistake here . Please give me a sample working code...