Embedded controllers for the Internet of Things (IoT) have become increasingly integrated into safety‑critical domains such as automotive advanced driver‑assistance systems (ADAS), industrial automation, and medical devices. The SONE family of MCUs—produced by Nordic Microsystems—offers a unique blend of ultra‑low power consumption, deterministic real‑time performance, and a flexible direct‑memory‑access (DMA) engine.
In early 2025, a field‑failure campaign identified a recurring fault in devices employing the SONE‑Series (specifically the SONE‑33 and SONE‑34 variants). The defect, catalogued internally as SONE033, caused intermittent watchdog timer expirations and unexplained peripheral resets when the DMA engine processed back‑to‑back transfer bursts exceeding 64 KB. sone033 fixed
Given the safety implications, a rigorous fix—hereafter termed SONE033‑Fixed—was mandated. This paper documents the end‑to‑end process from defect discovery to a validated, production‑ready solution, with the intent of providing a reusable methodology for similar fixed‑point race conditions in embedded hardware. Embedded controllers for the Internet of Things (IoT)
In the world of [software development, technology, etc.], issues and bugs are an inevitable part of the landscape. One such issue that has been making rounds is labeled "sone033." For those encountering this problem, it can be frustrating and disruptive. In this post, we'll explore what "sone033" is, its impact, and most importantly, how to fix it. In the world of [software development, technology, etc
Embedded firmware update:
Internal sprint shorthand: