• How to access the XDATA
    My external EEPROM (I2C) is AT24C32. In our code the XDATA is about 400Bytes. How to seperate the Code (program) memory and Data memory, how to access the XDATA.
  • Xdata Variables not accessable
    Dear Experts, I am a newbie to Keil and using the PK51 development kit with Rev:9.03 to develop firmware for my CC2430 controller. The problem I am seeing is, when ever I create a large array (ex:...
  • How can I optimize the xdata access with C51
    Hi there! I need to optimize the accessing the xdata memory (the speed) with C51. I am sending some files via modem and the transmission could be a bit faster. At present, I am reaching a transmission...
  • xdata access by #define
    I have to read a flash written by another program and am provided a file looking like this // data locations #define data1 0 #define data2 data1+0x100 ... I would like to use the file 'as is" but...
  • Problem about access values stored in xdata
    Dear sir,i use uVision IDE for 8051 ver 6.20c. I used AT89C81. My problem is, i want to store 25 integer value in an array called melody. When i tried to write code in following way, i get error "adress...