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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. Rich Felker‏ @RichFelker May 17

      Uhg, why is the SH SCIF serial port such a pain to program manually? Trying to debug early failure no output.

      1 reply 0 retweets 0 likes
    2. Robert Ou‏ @rqou_ May 17
      Replying to @RichFelker

      Not sure if this is the same peripheral as the serial block in the SH1, but I never managed to get that one to work either. In my case it kept triggering interrupts that I didn't want/expect.

      1 reply 0 retweets 0 likes
      Rich Felker‏ @RichFelker May 17
      Replying to @rqou_

      Got it working now. It was more the ridiculously many abstraction layers in Linux than the actual hardware interface that made it difficult to figure out. Not using interrupts, pure polling.

      9:03 AM - 17 May 2018
      • 1 Like
      • Robert Ou
      1 reply 0 retweets 1 like
        1. Robert Ou‏ @rqou_ May 17
          Replying to @RichFelker

          Linux certainly does have a tendency to turn 5 register writes into hundreds of lines of code

          0 replies 0 retweets 1 like
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