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Variable mapping to address

new bie

Hello,
I use uVision IDE and arm-gcc toolchain for my lpc2129 board.I mapped the CAN standard filters to an area in memory:

#define StandardFilter[2] (*((volatile unsigned long *) 0xE0038000));

However in my main program the follwing syntax seems to be incorrect:

StandardFilter[0]  =       0x20012002;//this is line no.57
StandardFilter[1]       =       0x20032004;


because the compiler throws the following error:
CAN_RX.c(57): error: parse error before '[' token

Could someone tell me what the correct syntax is?
Thank you.

Parents
  • 0 in reply to Andy Neil 

    #define BEGIN {
#define END }
#define IF if (
#define THEN ) {

BEGIN
  IF a > 10 THEN
    ...
  END
END

    A preprocessor is very powerful, which means that you must always think twice about how you use it. Too much clever use will often result in unhappy faces at a later stage of the sw lifespan.

Reply
  • 0 in reply to Andy Neil 

    #define BEGIN {
#define END }
#define IF if (
#define THEN ) {

BEGIN
  IF a > 10 THEN
    ...
  END
END

    A preprocessor is very powerful, which means that you must always think twice about how you use it. Too much clever use will often result in unhappy faces at a later stage of the sw lifespan.

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