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document how to use the ITM #100

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japaric opened this issue Dec 13, 2018 · 0 comments
Open

document how to use the ITM #100

japaric opened this issue Dec 13, 2018 · 0 comments

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@japaric
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japaric commented Dec 13, 2018

On IRC, quite a few people have asked about the ITM, have mentioned that they don't know how to use it, or mentioned that they tried to use it before but didn't get it to work. Let's document how to use the ITM in the book.

To cover:

  • OpenOCD side: monitor itm
  • Device side: iprintln!
  • Host side: itmdump -F -f itm.txt
  • Host side: itmdump -f /dev/ttyUSB0 (*nix only)
    • Cover how to configure the speed of ttyUSB*
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