Trice Output to SD Cards and Custom Writers

• Enable TRICE_DEFERRED_AUXILIARY8 in your project specific triceConfig.h file.
• Enabling TRICE_DEFERRED_AUXILIARY8 is possible parallel to any direct and/or deferred output.
• The TRICE_DEFERRED_OUT_FRAMING value is used also for the deferred auxiliary writes.
• Consider the value for TRICE_DEFERRED_TRANSFER_MODE. The TRICE_SINGLE_PACK_MODE would trigger a file write function on each single Trice message.

• Provide a self-made function like this:

    /// mySDcardWrite performs SD-card writing by appending to file myTriceLogs.bin.
    mySDcardWrite(const uint8_t* buf, size_t bufLen){
        ...
    }
  
    /// Assign this function pointer accordingly.
    UserNonBlockingDeferredWrite8AuxiliaryFn = mySDcardWrite; 
  

• If the SD-card write is more effective using 32-bits chunks, consider TRICE_DEFERRED_AUXILIARY32, what is recommended also if you use the encryption option.
  • TRICE_DEFERRED_AUXILIARY32 writes whole 32-bit words and pads the last word with zero bytes when needed.
• There maybe use cases for TRICE_DIRECT_AUXILIARY8 or TRICE_DIRECT_AUXILIARY32, but consider the max write time.
• Placing the files til.json and li.json anto the SD-card as well might be meaninjful.

• To decode myTriceLogs.bin later

    trice log -port FILEBUFFER -args myTriceLogs.bin -hs off
  

Related issues/discussions: #253 #405 #425 #447 #537

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