https://tnibler.de/atom.xml 2026-08-24T00:00:00+00:00 tnibler website tniblerhello@tnibler.de soupault https://tnibler.de/bites/sqlite-alter-constraint/ SQLite's ALTER TABLE can not DROP unnamed CHECK constraints 2026-08-24T00:00:00+00:00 As of SQLite 3.53.3, DROP CONSTRAINT only works on named constraints like CONSTRAINT name CHECK(...). https://tnibler.de/bites/cortex-m7-cache-rust/ Using the Data Cache on Cortex M7 STM32H7 (Rust) 2026-05-15T00:00:00+00:00 Without breaking DMA peripherals that is https://tnibler.de/blog/beattracking Better Beat Tracking 2026-05-12T00:00:00+00:00 The beat tracker your LED props deserve, a newly labeled 90 hour dataset, and TinyML that’s actually tiny. https://tnibler.de/bites/ml-on-stm32/ Machine Learning Inference on STM32/Cortex M7 2026-01-29T00:00:00+00:00 tl;dr: Tensorflow is currently the way to go to run a QAT quantized model on Cortex Mx using optimized CMSIS-NN kernels. https://tnibler.de/blog/local-features Fun with Local Image Features 2026-01-12T00:00:00+00:00 Multi Kernel Descriptors, a different take on a DoG blob detector, and trying to make it all fast using Vulkan compute.