# Enable SRST fallback reset_config srst_only srst_nogate connect_assert_srst reset_config trst_and_srst srst_pulls_trst

The directive connect_assert_srst instructs OpenOCD to pull the system reset low during the connection phase—exactly the fallback mechanism described. SRST fallback is not a mark of poor design but a testament to robust engineering. In an ideal world, every microcontroller would respond politely to debug commands, and firmware would never misconfigure its clock or pins. Reality is less forgiving. SRST fallback provides the last mile of controllability , transforming a seemingly dead device into a manageable state.

For embedded developers, understanding this mechanism solves countless "cannot connect to target" errors. It turns the panic of a bricked prototype into a routine procedure: Enable connect under reset, retry, and recover. In the hierarchy of debugging techniques, SRST fallback stands as the silent sentinel—aggressive when necessary, invisible when not, and indispensable when all else fails.

  1. Rooth

    I think that Burma may hold the distinction of “most massive overhaul in driving infrastructure” thanks, some surmise, to some astrologic advice (move to the right) given to the dictator in control in 1970. I’m sure it was not nearly as orderly as Sweden – there are still public buses imported from Japan that dump passengers out into the drive lanes.

  2. Mauricio

    Used Japanese cars built to drive on the Left side of the road, are shipped to Bolivia where they go through the steering-wheel switch to hide among the cars built for Right hand-side driving.
    http://www.la-razon.com/index.php?_url=/economia/DS-impidio-chutos-ingresen-Bolivia_0_1407459270.html
    These cars have the nickname “chutos” which means “cheap” or “of bad quality”. They’re popular mainly for their price point vs. a new car and are often used as Taxis. You may recognize a “chuto” next time you take a taxi in La Paz and sit next to the driver, where you may find a rare panel without a glove comparment… now THAT’S a chuto “chuto” ;-)

  3. Thomas Dierig

    Did the switch take place at 4:30 in the morning? Really? The picture from Kungsgatan lets me think that must have been in the afternoon.

  4. Likaccruiser

    Many of the assertions in this piece seem to likely to be from single sources and at best only part of the picture. Sweden’s car manufacturers made cars to be driven on the right, while the country drove on the left. Really? In the UK Volvos and Saabs – Swedish makes – have been very common for a very long time, well before 1967. Is it not possible that they were made both right and left hand drive? Like, well, just about every car model mass produced in Europe and Japan, ever. Sweden changed because of all the car accidents Swedish drivers had when driving overseas. Really? So there’s a terrible accident rate amongst Brits driving in Europe and amongst lorries driven by Europeans in the UK? Really? Have you ever driven a car on the “wrong” side of the road? (Actually gave you ever been outside of the USA might be a better question). It really ain’t that hard. Hmmm. Dubious and a bit weak.

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