Thread: C Code to handle sequence of commands as structure elements

  1. 01-15-2017 #1
    davidmeetsall
    davidmeetsall is offline
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    C Code to handle sequence of commands as structure elements

    Hi Friends,

    I need help in C coding. I have to send a sequence of commands in a 8-bit microcontroller. Each command is 64- bit data.
    Code:
    typedef struct{
   uint16_t data0;
   uint16_t data1;
   uint16_t data2;
   uint16_t data3;  

} command_data_t;
    Now, there are 5-6 commands, each having different data0, data1, data2, data3.

    Code:
    typedef struct{ //all made of different data0, data1, data2, data3.
   COMMAND1;   
   COMMAND2;
   COMMAND3;
   COMMAND4; 
   COMMAND5; 

} command_t;
    Above commands are made of command_data_t type.

    I don't know how to write a C code so that I can send these commands one by one. Like once a command is send, send next command. Once all commands are sent start sending from the first command again.

    I need to write a function, which takes element of command_t, send it, then next one...Please provide me code if possible.

    Please help.

    Thanks,
    David.
  2. 01-15-2017 #2
    Salem
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    To be honest, an array makes more sense (whenever you start putting numeric suffixes on variable names, it screams 'make me an array').
    Code:
    typedef struct{ //all made of different data0, data1, data2, data3.
   command_data_t commands[5];
} command_t;
    After that, a simple for loop along the lines of this should suffice.
    sendACommand( &foo.commands[i] );
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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