Basic Concepts of Xilinx 7 Series FPGA High-Speed Transceivers GTX/GTH

Basic Concepts of Xilinx 7 Series FPGA High-Speed Transceivers GTX/GTH

Welcome FPGA engineers to join the official WeChat technical group. I originally wrote an introduction to the preliminary debugging plan for high-speed transceivers, providing some initial debugging suggestions when encountering problems. However, I found that it involves many concepts. Explaining them one by one would make the article too lengthy. Therefore, I wrote a separate … Read more

The 60-Second Curse in HTTP Protocol: A Performance Mystery Triggered by an Irregular Response

The 60-Second Curse in HTTP Protocol: A Performance Mystery Triggered by an Irregular Response

Introduction The operations engineer stared at the 60-second loading progress bar on the monitoring screen, frowning. A JS file of less than 400KB was stuck in the browser for a full 60 seconds. Network packet capture showed a peculiar TCP closing trilogy between the SSL gateway and the backend server, with everything pointing to that … Read more

A Guide to Avoiding Pitfalls with Content-Length in HTTP Requests

A Guide to Avoiding Pitfalls with Content-Length in HTTP Requests

Scenario Recreation: A Frustrating JSON Parsing Issue Recently, during a project integration process, our team encountered a bizarre JSON parsing issue. Here’s what happened: The frontend team copied a normal cURL request from Chrome Developer Tools: curl -X POST https://api.ourcompany.com/v1/orders \ -H "Content-Type: application/json" \ -H "Content-Length: 187" \ -d '{"order_id":"123456","products":[{"sku":"A001","qty":2}],"remark":"Weekend Delivery"}' This request worked … Read more