Trice Troubleshooting

Contents

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• 1. Initial Data Transfer Setup Hints
• 2. Short Trouble Shooting Hints

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1. Initial Data Transfer Setup Hints

If you do not succeed initially, you can try this:

triceConfig.h:

#define TriceStamp32 0x44434241 // a fixed value

#define TRICE_DIRECT_OUT_FRAMING TRICE_FRAMING_NONE   // default
#define TRICE_DEFERRED_OUT_FRAMING TRICE_FRAMING_NONE // no framing to interpret the byte stream manually

main.c:

int main( void) {
    // system init...
    TriceInit();
    TRice(iD(170), "Fun %x!\n", 0xadded ); // with "fixed" iD(170), 32-bit stamp, and with `\n`
    TriceTransfer(); // call cyclically for deferred mode
    // system run ...
}

• Command line with expected output (-s is):

trice log -s -port com1 -v -ts32="att:%08x fix" # enter this (adapted)
#       /-------------------------------------- ID low byte (170)
#       |  /----------------------------------- ID high byte (6 bits=0) with 2 most significant bits set (32-bit stamp follows)
#       |  |       /--------------------------- 32-bit (time) stamp
#       |  |       |      /-------------------- initial cycle counter: 192
#       |  |       |      |  /----------------- payload size
#       |  |       |      |  |       /--------- payload (0x00added) 
#       |  |       |      |  |       |      / - 0-delimiter or next Trice
#       |  |       |      |  |       |      |
#       v  v  vvvvvvvvvvv v  v  vvvvvvvvvvv v
# Input(aa c0 41 42 43 44 c0 04 ed dd 0a 00 ... ) # expected byte stream
# ...
#              main.c    84 44434241 fix   170 Fun added!
# ...

• If you receive something different, you have to debug your system.
• To interpret the bytes see Trice Binary encoding chapter.
  • 33 ff ID as 16-bit little endian
    • 33 low part of ID 0x3333
    • ff high part if ID 0x3333 - the 6 least significant bits ored with 0b11000000 to signal a 32-bit timestamp
  • 41 42 43 44 32-bit timestamp, usually as little endian
  • c0 cycle counter, initial value is 192
  • 04 parameter size
  • 22 22 22 22 4 parameter bytes

2. Short Trouble Shooting Hints

Problem	Hint
Missing objcopy in macOS	brew install binutils
Small GUI Editor for macOS	brew install cotedit Usage: cot (not as root)
Small In-Terminal Editor Linux	https://cte.e10labs.com/, tilde, micro, joe, https://craigbarnes.gitlab.io/dte/ (also as root)
Nothing shown with trice -s	Check that format strings end with \n and/or use -addNL

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