VLC communication modules to transmit data using the stm32 platform.

Summary

Overview

The provided C code is a main program for an embedded system likely running on an STM32 microcontroller. It utilizes UART communication between two devices (USART1 and USART2) and employs DMA for efficient data handling. The code includes functions for UART initialization, DMA setup, GPIO configuration, and system clock configuration.

Key Components

UART Communication: Two UART interfaces (USART1 and USART2) are initialized for bidirectional communication using DMA for both receiving and transmitting data.
DMA Configuration: Direct Memory Access (DMA) channels (DMA1_Channel5 and DMA1_Channel6) are set up to handle UART data transfers in a non-blocking manner.
GPIO Configuration: Configures GPIO pins (PA13 and PA14) for general purpose and input/output operations.
System Clock: Configures the system clock using MSI oscillator, ensuring proper timing for UART and other peripherals.

Functions

Main Function (main): Contains an infinite loop (while(1)) where UART data reception (HAL_UART_Receive_DMA) and transmission (HAL_UART_Transmit) are handled. It calls various functions like CT_engine, SC_Estimator, MLC_Engine, and others for data processing and communication.
Data Processing Functions: Includes functions like MLC, SC_Estimator, EGC_Estimator, find_best_CT, and CT_engine for performing operations such as Mean of Least Change (MLC), Signal Change (SC) estimation, and Edge Change (EGC) estimation based on received data.

Error Handling

Error Handler (Error_Handler): Basic error handler that halts the program in case of an error occurrence, disabling interrupts and entering an infinite loop.

License and Attribution

The code includes a copyright notice from STMicroelectronics and references to licensing terms in a LICENSE file. It assumes a permissive licensing model if no LICENSE file is present.

Notes

The code demonstrates advanced techniques like DMA-driven UART communication, efficient data processing algorithms for embedded systems, and robust error handling for reliable operation.
It is structured for real-time applications where data integrity and timing are critical, leveraging hardware features of the STM32 microcontroller effectively.

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