• I need to access two memory of xdata
    Hi, I have two memory (Flash & NVRAM). I need to access both memories. I am writing program in C. If I want to store some variables in NVRAM and some in Flash how do I do it? Is there any mechanism...
  • Need explination of these two decloration software lines
    What do the following lines do? Generaly not specificaly. What do the terms mean/and or do? 1) xdata * xdata mean? 2) s_pSIN = (MASTER_2_AFPU*)&s_SIN; static xdata uchar s_SIN[sizeof(MASTER_2_AFPU...
  • how to program when i need two 82c55
    When I use one 82c55. I can define as follow: #define D8255A XBYTE[0xeffc] #define D8255B XBYTE[0xeffd] #define D8255C XBYTE[0xeffe] #define C8255 XBYTE[0xefff] Now I need to use two chips of 82c55...
  • CRC in MCU
    Does anyone have C code or ASM code of CRC calculation for an array of 256 byte data?
  • need source code for the serial port to control in mcu
    i wanted to control a devices like fan or light, using mcu and the signal will be receive by the mcu came from the pc ,in the serial port.......but i dont know how to prog it for serial port to detect...