Module rom

Available on crate feature unstable only.

ESP ROM libraries

Overview

The rom driver provides functionality related to the ROM (Read-Only Memory) on ESP chips. It includes implementations for the CRC (Cyclic Redundancy Check) and MD5 (Message Digest 5) algorithms.

The driver’s functionality allows users to perform CRC calculations and MD5 hashing using the ROM functions provided by the ESP chip. This can be useful for various applications that require data integrity checks or cryptographic operations.

It uses CRC error-checking techniques to detect changes in data during transmission or storage.

This module also implements the MD5 algorithm, which is widely used for cryptographic hash function. It’s commonly used to verify data integrity and to check whether the data has been modified.

Safe abstractions to the additional libraries provided in the ESP’s Read-Only Memory.

Modules

crc

Cyclic Redundancy Check (CRC)

md5

MD5 Message-Digest Algorithm (MD5)

spiflash

Definitions of ROM functions related to flash memory.

Functions

ets_delay_us

Busy-loop CPU for the given about of us.

ets_update_cpu_frequency_rom

Set the real CPU ticks per us to the ets, so that ets_delay_us will be accurate. Call this function when CPU frequency is changed.

rtc_get_reset_reason

Get the reset reason for CPU.

software_reset

Software Reset digital core.

software_reset_cpu

Software Reset digital core.