https://www.acooke.org/cute/Andrew Cooke's blogSat, 04 Apr 2026 18:30:03 GMTPyRSS2Gen-1.1.0http://blogs.law.harvard.edu/tech/rsshttps://www.acooke.org/cute/BreadRecip0.html This is for the Moulinex bread machine. It makes a light, "french" loaf. Writing it down here mainly for my own reference. * Heat water to 40C * Add 300ml warm water to bread tank * Add 2tbsp olive oil (gives good taste) and 2tsp salt to tank. * Mix 2tsp dried yeast and 2tsp sugar with a little water (tbsp or so) in a jug and leave to bubble a little while sieving flour. * Sieve 500g of ...BreadRecip0.html Sat, 04 Apr 2026 18:28:00 GMThttps://www.acooke.org/cute/agringogoe0.html i'm writing this note partly as a diary, and partly as a guide for gringos thinking about cycling from santiago to valparaíso when the roads are closed for the pilgrimage. i am likely going to describe things that are really obvious to locals, but might not be as clear to foreigners. it is based on my experience riding the route (for the first time) on december 7, 2025. here's my strava record...agringogoe0.html Mon, 08 Dec 2025 13:34:00 GMThttps://www.acooke.org/cute/SimpleFast0.html [Maybe this is already known, but I failed to turn up anything with Google and am pretty pleased with what I dreamt on my own.] I'm writing software to generate audio signals with an 8 bit DAC and a relatively weak CPU. I wanted to add a compressor to the audio chain, but my initial attempts used slow floating point arithmentic. Then I came up with this: def compress(n, depth): for ...SimpleFast0.html Thu, 02 Oct 2025 18:13:00 GMThttps://www.acooke.org/cute/Usingnotin0.html An obscure fix that maybe google will pick up and pass on to help out a poor lost soul... If you're using __not_in_flash_func with multi argument templates then why the hell are you using templates in an embedded system? Lol. But some of us enjoy a challenge so... template<uint A, uint B> void __not_in_flash_func(Class<A, B>func(int p))() { ... } does not work. It does not work b...Usingnotin0.html Thu, 24 Jul 2025 20:12:00 GMThttps://www.acooke.org/cute/RaspberryP1.html I've gone down something of a rabbit hole with the corrections for the Raspberry Pico RP2040 (see the poor DNL data at https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf for context). My initial steps are described in previous posts here that I won't link to immediately because they were, in retrospect, very superficial. Although they did serve to get me to the point where I had to ...RaspberryP1.html Wed, 23 Jul 2025 21:58:00 GMThttps://www.acooke.org/cute/TestingRas0.html I previously discussed corrections to improve the ADC of the Raspberry Pico at https://acooke.org/cute/DNLINLandR0.html The last few days I've been working on comparing the two corrections directly, using the Modular System hardware. More exactly, I am comparing the two corrections with linear trends removed. I didn't show these together in the previous post, so look here to see the expected e...TestingRas0.html Sun, 20 Jul 2025 18:09:00 GMThttps://www.acooke.org/cute/DNLINLandR0.html The Raspberry Pico 2040 has a problem with the ADC. It's described in https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf (see section 4.9.4 and the worrying low ENOB just before). The DNL and INL in that datasheet are explained at https://www.allaboutcircuits.com/technical-articles/understanding-analog-to-digital-converter-differential-nonlinearity-dnl-error/ If I've understood cor...DNLINLandR0.html Thu, 10 Jul 2025 20:02:00 GMThttps://www.acooke.org/cute/Fastintege0.html I am writing some (audio) synthesis code for a CPU without fast division. Internally, amplitude is described with int16_t, but for some processes (eg wavefolding) it's useful to switch to floats. Without fast division this switch could be expensive. So I started to prematurely optimize... I realised that one way to convert between the two was to directly write to the mantissa part of an IEEE f...Fastintege0.html Tue, 01 Jul 2025 15:27:00 GMThttps://www.acooke.org/cute/HelloWorld0.html I've just got "hello world" working on the Music Thing Modular (MTM). Here are a few notes: - I didn't really follow anyone's instructions or project layout, which in retrospect would have made things simpler. - Instead, I started writing the code I wanted to deploy long before I got the machine. I wrote in emacs and called g++ via a shell script to compile. This worked fine for develop...HelloWorld0.html Thu, 26 Jun 2025 18:11:00 GMThttps://www.acooke.org/cute/CyclingMir0.html i bought a cycling mirror (the "take a look" compact model that is sold on amazon) and tried it today. here are my first impressions (i am trying to order them from specific to general): - it's very well made for something so light and seemingly delicate. the mount on my glasses was secure, the adjustments easy, nothing moved out of adjustment (even on a road bike on santiago's bumpy road...CyclingMir0.html Thu, 10 Apr 2025 19:36:00 GMThttps://www.acooke.org/cute/RedditComm0.html Loved this and wanted to record it here in case it's deleted later. Also, I need to sort out this place and get rid of all the spam, I know. https://www.reddit.com/r/Professors/comments/1iuqq6y/what_is_the_line_between_paranoia_and_preparedness/me0ejh0/ Credit to DerProfessor https://www.reddit.com/user/DerProfessor [In response to an acacdemic worrying about the future] Honestly, I would sa...RedditComm0.html Fri, 21 Feb 2025 16:03:00 GMT