ChipInfo

Overview

Ameba series chips store their key information in eFuse, which is used for persistently storing immutable chip attributes.

This information includes the chip global unique identifier (UUID), and memory configuration.

It provides essential support for system initialization, compatibility judgment, production management, and device tracking.

Function Descriptions

1. UUID Retrieval:

   Read the globally unique identifier (UUID) programmed during factory production from the eFuse.

   This identifier is non-repeatable and permanent, applicable to device identity authentication, anti-counterfeiting tracking, and cloud device management scenarios.

2. Memory Configuration Identification:

   Different chip models may have different co-packaged storage resources (such as Flash and PSRAM).

   This identification allows the system to dynamically recognize available resources during the boot phase.

   It achieves automatic adaptation to different hardware configurations. It also enhances hardware and software compatibility and product flexibility.

API Reference

EFUSE_GetUUID

Item	Description
Function	Retrieve chip unique identifier
Parameter	Data: Pointer to a u32 type, needs an 8-byte buffer to store UUID
Return	None

ChipInfo_MCMInfo

Item	Description
Function	Retrieves the type and density of the chip’s built-in memory
Parameters	None
Return Value	Returns an MCM_MemTypeDef structure, including the following fields: mem_type: The type of memory built into the chip flash_density: Flash density dram_info: Detailed information about DRAM type and density