--- title: "An Iterative Approach to USART HAL Design using ChatGPT" url: https://daily.dev/posts/an-iterative-approach-to-usart-hal-design-using-chatgpt-f36be4rls source_url: https://www.embeddedrelated.com/showarticle/1534.php type: article source: "EmbeddedRelated" published: 2026-05-31T07:47:42.327Z updated: 2026-05-31T08:53:07.352Z tags: ["c", "chatgpt", "embedded"] reading_time: 18 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # An Iterative Approach to USART HAL Design using ChatGPT **[EmbeddedRelated](https://daily.dev/sources/embeddedrelated)** · 18 min read · 0 upvotes · 0 comments ## Summary A walkthrough of using ChatGPT iteratively to design a USART hardware abstraction layer (HAL) in C. Starting from a rough initial prompt, the author goes through seven iterations, progressively refining the interface to support multiple devices, dependency inversion via function pointers, error codes, and callback support. Manual edits are made where AI output falls short. The final USART HAL is then used as a seed to quickly generate a matching SPI interface, demonstrating how AI can accelerate peripheral HAL generation while still requiring human oversight and domain expertise. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [UI Design with ChatGPT 5](https://daily.dev/posts/ui-design-with-chatgpt-5-qk09brni2) · UX Planet · 27 upvotes · 1 comments --- Tags: [#c](https://daily.dev/tags/c), [#chatgpt](https://daily.dev/tags/chatgpt), [#embedded](https://daily.dev/tags/embedded) [View this post on daily.dev](https://daily.dev/posts/an-iterative-approach-to-usart-hal-design-using-chatgpt-f36be4rls)