A PC with a DB9 Serial port or a high-quality USB-to-TTL (RS232) adapter.
To help you appropriately, could you clarify what you mean by “develop a piece” ? For example:
Here is a breakdown of the features and functions of this tool:
Gx Downloader Boot V1.031 is a specialized firmware flashing and recovery tool primarily used for satellite receivers equipped with NationalChip (GX) chipsets, such as the
To utilize the Gx Downloader V1.031, the following hardware interface is required:
Supports Serialdown, Other, and various boot modes. How to Use: