Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.arch.embedded > #30115

Re: I2C Single Master: peripheral or bit banging?

From Tauno Voipio <tauno.voipio@notused.fi.invalid>
Newsgroups comp.arch.embedded
Subject Re: I2C Single Master: peripheral or bit banging?
Date 2020-11-21 11:46 +0200
Organization A noiseless patient Spider
Message-ID <rpanl2$ip9$1@dont-email.me> (permalink)
References (3 earlier) <rp8n5k$k5f$1@dont-email.me> <rp8r4d$lns$1@dont-email.me> <rp8uvt$mbe$1@dont-email.me> <rp9c7v$vl0$1@dont-email.me> <rp9ibj$6up$1@reader1.panix.com>

Show all headers | View raw

On 21.11.20 1.09, Grant Edwards wrote:
> On 2020-11-20, Dimiter_Popoff <dp@tgi-sci.com> wrote:
> 
>> I have dealt with I2C controllers on 2 parts I can think of now
>> and both times it took me a lot longer to get them to work than it
>> had taken me on two earlier occasions when I bit banged it though...
> 
> That's my experience also. I've done bit-banged I2C a couple times,
> and it took about a half day each time. Using HW I2C controllers has
> always taken longer. The worst one I remember was on a Samsung ARM7
> part from 20 years ago. Between the mis-translations and errors in the
> documentation and the bugs in the HW, it took at least a week to get
> the I2C controller to reliably talk to anything.
> 
> --
> Grant


To add to that, the drivers by the hardware makers are also quite
twisted and difficult to integrate to surrounding software.

With ARM Cortexes, I'm not veery fascinated with the provided
drivers in CMSIS. Every time I have ended writing my own.

-- 

-TV

Back to comp.arch.embedded | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-20 09:43 +0100
  Re: I2C Single Master: peripheral or bit banging? Bernd Linsel <bl1@gmx.com> - 2020-11-20 11:38 +0100
    Re: I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-20 12:45 +0100
      Re: I2C Single Master: peripheral or bit banging? Bernd Linsel <bl1@gmx.com> - 2020-11-20 15:57 +0100
  Re: I2C Single Master: peripheral or bit banging? Richard Damon <Richard@Damon-Family.org> - 2020-11-20 08:09 -0500
    Re: I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-20 15:15 +0100
      Re: I2C Single Master: peripheral or bit banging? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2020-11-20 17:25 +0200
        Re: I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-20 17:33 +0100
          Re: I2C Single Master: peripheral or bit banging? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2020-11-20 19:39 +0200
            Re: I2C Single Master: peripheral or bit banging? Dimiter_Popoff <dp@tgi-sci.com> - 2020-11-20 23:25 +0200
              Re: I2C Single Master: peripheral or bit banging? Grant Edwards <invalid@invalid.invalid> - 2020-11-20 23:09 +0000
                Re: I2C Single Master: peripheral or bit banging? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2020-11-21 11:46 +0200
            Re: I2C Single Master: peripheral or bit banging? David Brown <david.brown@hesbynett.no> - 2020-11-21 12:06 +0100
              Re: I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-22 17:48 +0100
                Re: I2C Single Master: peripheral or bit banging? David Brown <david.brown@hesbynett.no> - 2020-11-22 19:44 +0100
                Re: I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-23 08:44 +0100
                Re: I2C Single Master: peripheral or bit banging? David Brown <david.brown@hesbynett.no> - 2020-11-23 09:42 +0100
                Re: I2C Single Master: peripheral or bit banging? David Brown <david.brown@hesbynett.no> - 2020-11-23 09:44 +0100
                Re: I2C Single Master: peripheral or bit banging? Richard Damon <Richard@Damon-Family.org> - 2020-11-23 07:25 -0500
                Re: I2C Single Master: peripheral or bit banging? Reinhardt Behm <rbehm@hushmail.com> - 2020-11-24 18:15 +0800
  Re: I2C Single Master: peripheral or bit banging? stephen@mpeforth.com (Stephen Pelc) - 2020-11-20 14:53 +0000
  Re: I2C Single Master: peripheral or bit banging? John Speth <johnspeth@yahoo.com> - 2020-11-20 06:56 -0800
  Re: I2C Single Master: peripheral or bit banging? Michael Kellett <mk@mkesc.co.uk> - 2020-11-21 09:10 +0000
    Re: I2C Single Master: peripheral or bit banging? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2020-11-21 11:48 +0200
    Re: I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-22 17:35 +0100
      Re: I2C Single Master: peripheral or bit banging? Michael Kellett <mk@mkesc.co.uk> - 2020-11-22 20:21 +0000
  Re: I2C Single Master: peripheral or bit banging? Mike Perkins <spam@spam.com> - 2020-11-25 17:43 +0000
    Re: I2C Single Master: peripheral or bit banging? pozz <pozzugno@gmail.com> - 2020-11-26 08:54 +0100
      Re: I2C Single Master: peripheral or bit banging? Mike Perkins <spam@spam.com> - 2020-11-26 14:34 +0000

csiph-web