ARTERY AT32F407 Series - User Manual

AT32F403A/407 CRM Quick Start Guide
2022.06.10 1 Ver 2.0.4
AN0082
Application Note
AT32F403A/407 CRM Quick Start Guide
Introduction
This application note mainly introduces:
1. How to configure and modify the clock source code based on the BSP_V2.x.x provided by Artery.
2. How to use the accessary clock configuration tools to set clock path and parameters to generate
and use the corresponding clock code.
Applicable products:
Part number
AT32F403Axx
AT32F407xx

Summary

AT32 Clock Tree Explanation

Code-Based Clock Configuration

Clock Configuration Functions

Lists and describes common interface functions for hardware clock configuration in the BSP.

System Clock Configuration Steps

Detailed steps and code examples for configuring system clocks, including CRM reset and source selection.

Clock Configuration Code Example

Provides a practical example with code demonstrating clock configuration for system clocks.

AT32 Clock Configuration Tools

Clock Configuration Tool Function Overview

Creating a Clock Configuration Project

Clock Configuration Interface Details

Explains the graphical interface for configuring clock paths and parameters.

Generating Clock Configuration Code

Describes the process of generating source code files from the clock configuration tool.

Application Case 1: System Clock Switching

System Clock Switching Software Design

Details the configuration process and code implementation for switching system clocks.

Application Case 2: Clock Fail Detector

Clock Fail Detector Software Design

ARTERY AT32F407 Series Specifications

General

Series	AT32F407
Core	ARM Cortex-M4
Maximum CPU frequency	240 MHz
GPIO Pins	Up to 80
ADC Channels	16
DAC Channels	2
Package Options	LQFP48, LQFP64, LQFP100, LQFP144
Communication interfaces	USB, USART, SPI, I2C, CAN
ADC	12-bit ADC
DAC	2 x 12-bit DAC
Operating Temperature	-40°C to 85°C