• Trying to access memory mapped I/O device
    I am using the atmel 89ls53 microcontroller and am trying to access memory mapped devices(LCD,Flash card). I am using a 74hc573 to latch the address, but when i hook the address/data bus up to a logic...
  • accessing memory-mapped peripherals with C
    hi i defined a peripheral at 0x59000000 address and am trying to send a value to that register with my c code i succeeded to send a value with assembly AGAIN LDR R1, =0x59000000 LDR R0, =0x00000022...
  • Trouble accessing IDATA
    I'm evaluating C51 & uVision v2.30 and have trouble accessing IDATA RAM. The target is an Atmel AT89C51AC2 that has 128 bytes of DATA ram, a further 128 bytes of IDATA ram and 1024 bytes of XRAM. ...
  • Trouble accessing array values
    I'm having difficulty accessing a value from an array. Here's an example of what the code is doing: unsigned char xdata In_Buf[2][70]; unsigned char port; void main(void){ port = In_Buf[0...
  • memory mapping
    Hi, Maybe this is not the right forum for this question, but is there anyone who can tell me the correct settings to compile HID-firmware for the FX2? The problem is, I've written some firmware...