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Byte Alignment

Mike Sarafidis

hi there,

I am using Keil µVision 4 with NXP LPC11U35. I want to load a structure that contains mix type of variables (chars, integers, longs) using a char pointer. How can I set byte alignment so that no data are missed at the alignment?

Thanks in advance.

Parents
  • 0 in reply to Mike Sarafidis

    sorry my bad...

    this works

    typedef __packed struct{
        unsigned char  soh;
        unsigned short sender;
        unsigned short receiver;
        unsigned char  trq;
        unsigned int   command;
        unsigned short packet;
        unsigned char  stx;
        unsigned int   address;
        unsigned char  data[MAX_DATA_LENGTH];
        unsigned int   crc;
        unsigned char  etx;
        unsigned short checksum;
        unsigned char  eoh;
}RS485_FRAME;

    Thanks

Reply
  • 0 in reply to Mike Sarafidis

    sorry my bad...

    this works

    typedef __packed struct{
        unsigned char  soh;
        unsigned short sender;
        unsigned short receiver;
        unsigned char  trq;
        unsigned int   command;
        unsigned short packet;
        unsigned char  stx;
        unsigned int   address;
        unsigned char  data[MAX_DATA_LENGTH];
        unsigned int   crc;
        unsigned char  etx;
        unsigned short checksum;
        unsigned char  eoh;
}RS485_FRAME;

    Thanks

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