Summary A.NET Core web application responsible for generating Excel reports via the OpenXML SDK failed intermittently depending on which template file was used. While one endpoint produced functional files, another produced corrupted files that could not be opened by Excel. The issue stemmed from a fundamental misunderstanding of how the OpenXML SpreadsheetML relationship works between … Read more
Summary IceStorm provides a fully open‑source toolchain for Lattice iCE40 FPGAs, including synthesis (yosys), place‑and‑route (nextpnr‑ice40), and bitstream programming (iceprog). It is mature enough for prototyping and low‑volume production, but commercial adoption requires careful validation of timing closure and support for advanced features. Root Cause The Lattice iCE40 toolchain (Diamond, Radiant) is commercial and license‑restricted. … Read more
Summary Root Cause Why This Happens in Real Systems Real-World Impact Example or Code (if necessary and relevant) How Senior Engineers Fix It Why Juniors Miss It Critical Rules Use bold for key takeaways and concepts Bullets to explain causes and impacts Emphasis through formatting constraints mortals Collaboration essential for execution clarity Preparation crucial beforehand … Read more
Summary This post addresses adjusting text alignment controls in the Gutenberg toolbar within a WordPress project. Users encountered issues adding justify alignment to a form or custom field. The focus is on understanding the workflow and resolving failure scenarios. Root Cause Identifying where the modification failed is critical. Common culprits include outdated plugins, missing settings … Read more
Summary This technical postmortem investigates a motor control issue involving an LCD touchscreen and Raspberry Pi Pico 2. The goal is to detect touch events and transform motor behavior accordingly. The setup combines GPIO, LCD display, and timing mechanisms. Root Cause Timer misconfiguration: The timing functions are not placing motor changes at the right times. … Read more
Summary The inability to display telemetry data on the PyQt6 interface stems from miscommunication between ROS2 and the GUI application. This typically occurs due to incorrect topic subscription, threading conflicts, or improper data handling. Without proper synchronization, the GUI thread becomes blocked or fails to receive published messages. Root Cause Thread Blocking: The ROS2 spin() … Read more
Summary Effortlessly clear the viewport in WezTerm without losing scrollback: By customizing your wezterm.lua you can emulate Windows PowerShell’s Ctrl+L behavior – clearing the visible screen while preserving the scroll history. Root Cause The default action ClearScrollbackAndViewport merges the viewport clear with scrubbing the scrollback buffer. WezTerm exposes a separate action, ClearViewport, that only clears … Read more
Summary The issue involves a common data reshaping problem where a single column contains categorical indicators (X and Y) that are intended to serve as column headers for a wide-format dataset. The objective is to transform a “long” format dataset into a “wide” format by pivoting the PLANE column, effectively turning the dimension labels into … Read more
Summary During a high-stakes data migration of customer records, a production engineer encountered a critical failure when attempting to capture multiple values during an INSERT operation. The engineer successfully used the OUTPUT clause to capture a generated identity column alongside a local variable, but the process failed with a “Column not recognized” error as soon … Read more
Summary An architectural requirement emerged to intercept existing database traffic for auditing and filtering purposes without modifying client-side connection strings. The objective was to insert a proxy layer between the clients and the Amazon RDS PostgreSQL instance to perform deep packet inspection or logging via a custom agent. The implementation involves transitioning from a direct … Read more