• Reading/Writing external memory using xdata
    I like to know how to read external memory using xdata .I've tried like this unsigned char xdata *PORTA=0X8000; unsigned char xdata *CW=0X8003; unsigned char val2, val3; val2=0X80; CR=&val2; val3=0X50;...
  • External memory write problem
    I am using STR912WA44 arm CPU. I am trying to access to an external SRAM. While writing data to SRAM, chip select and read enable signal are acting correctly, however while writing into this external...
  • Problem in writing code for interfacing MicroSD with STM32
    hello there, can anyone please help me in writing the code for interfacing microSD with STM32 using SPI. I actually dont have proper library files and neither I know how to start the code i.e. which...
  • External memory interface & Uart
    Hi All, I add the UART code into EMI example from the ST and compile the following code with the configuration Options->Target -> off-chip RAM1 0x3c000000 size 0x400000 -> on-chip IRAM1 0x4000000...
  • External memory interface
    Hello, I'm using an STR710fz2 ARM7 processor, and I need to interface with the external memory bus. The datasheet discusses timing and wait states, but I haven't seen any software application examples...