{
  "added_at": "2026-11-09",
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "PrimeComm implements file communication with the HP Prime calculator from the author's device reverse engineering. It provides a Windows GUI, PrimeCmd command-line access and PrimeLib for sending, receiving and converting calculator programs; the author says modern firmware changed the communication protocol.",
  "description_zh": "PrimeComm 根据作者对 HP Prime 计算器的逆向研究实现文件通信，提供 Windows 图形界面、PrimeCmd 命令行和 PrimeLib 库，用于发送、接收及转换计算器程序。作者指出现代固件已更改通信协议。",
  "entry_url": "https://awesomerea.org/resources/primecomm-hp-prime-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/primecomm-hp-prime-case/",
  "evidence_url": "https://github.com/eried/PrimeComm/blob/a0ac20e65cdd97695bdc51bd1f319c973b51937a/README.md",
  "group": "cases",
  "id": "primecomm-hp-prime-case",
  "json_url": "https://awesomerea.org/resources/primecomm-hp-prime-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/primecomm-hp-prime-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/primecomm-hp-prime-case/index.md",
  "name": "PrimeComm: reconstructing HP Prime file communication",
  "name_zh": "PrimeComm：重建 HP Prime 文件通信",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirements": [
    "An HP Prime calculator with firmware compatible with the older communication protocol.",
    "The author says the project does not work with modern firmware."
  ],
  "requirements_zh": [
    "需要使用旧版通信协议的 HP Prime 计算器。",
    "作者说明该项目不适用于现代固件。"
  ],
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/eried/PrimeComm",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}