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ARTERY AT-START-F425 User Manual

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AT-START-F425 User Manual
Getting started with AT32F425R8T7-7
Introduction
AT-START-F425 is designed to help you explore the high performance of the 32-bit microcontroller
®
AT32F425 that embeds ARM Cortex
-M4 core, and expedite application development.
AT-START-F425 is an evaluation board based on AT32F425R8T7-7 microcontroller. The device
TM
contains such peripherals as LEDs, buttons, USB micro-B connector, type-A connector, Arduino
Uno R3 extension interface. This evaluation board embeds AT-Link-EZ for debugging/programming
without the need of other development tools.
2021.10.20
1
Rev 1.00
www.arterytek.com

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Summary of Contents for ARTERY AT-START-F425

  • Page 1 AT-START-F425 User Manual Getting started with AT32F425R8T7-7 Introduction AT-START-F425 is designed to help you explore the high performance of the 32-bit microcontroller ® AT32F425 that embeds ARM Cortex -M4 core, and expedite application development. AT-START-F425 is an evaluation board based on AT32F425R8T7-7 microcontroller. The device contains such peripherals as LEDs, buttons, USB micro-B connector, type-A connector, Arduino Uno R3 extension interface.

  • Page 2: Table Of Contents

    Features ........................5 Definition of terms ....................5 Quick start ......................6 Get started........................ 6 AT-START-F425 development toolchains ..............6 Hardware and layout ..................... 7 Power supply selection ..................... 9 IDD ........................... 9 Programming and debugging: embedded AT-Link-EZ ..........9 Boot mode selection ....................
  • Page 3 AT-START-F425 User Manual List of tables Table 1. Boot mode selection jumper settings ................... 10 Table 2. 0Ωresistor settings ....................... 12 Table 3. Arduino Uno R3 extension interface pin definition ............13 Table 4. Document revision history ....................19 2021.10.20...
  • Page 4 AT-START-F425 User Manual List of figures Figure 1. Hardware block diagram ...................... 7 Figure 2. Top layer ..........................8 Figure 3. Bottom layer ......................... 8 Figure 4. Schematic (AT-Link-EZ) ..................... 15 Figure 5. Schematic (microcontroller) ....................16 Figure 6. Schematic (power supply and peripherals) ................ 17 Figure 7.

  • Page 5: Overview

    AT-START-F425 User Manual Overview Features has the following characteristics: AT-START-F425  ® AT-START-F425 has an on-board AT32F425R8T7-7microcontroller that embeds ARM Cortex M4 32-bit core, 64 KB Flash memory and 20 KB SRAM, in LQFP64 7x7mm packages.  On-board AT-Link interface: −...

  • Page 6: Quick Start

    AT-START-F425 User Manual Quick start Get started Configure the AT-START-F425 board in the following sequence: 1. Check the Jumper’s position on board: JP1 is connected to GND or OFF (BOOT0 = 0, and BOOT0 has an pull-down resistor in the AT32F425R8T7-7);...

  • Page 7: Hardware And Layout

    AT-START-F425 User Manual Hardware and layout AT-START-F425 board is designed around an AT32F425R8T7-7 microcontroller in LQFP64 7x7 mm package. Figure 1 shows the connections between AT-Link-EZ, AT32F425R8T7-7 and their peripherals (buttons, LEDs, USB OTG, and extension connectors) Figure 2 Figure 3 shows their respective locations on the AT-Link-EZ and AT-START-F425 board.

  • Page 8: Figure 2. Top Layer

    AT-START-F425 User Manual Figure 2. Top layer User LED AT32F425R8T7-7 LQFP64 I/O extension interface Jumper for IDD LEXT 32.768 kHz crystal Arduino Uno extension interface measurement Power LED USART1 interface Jumper for boot mode select USB Type-A connector AT-Link-EZ Arduino Uno...

  • Page 9: Power Supply Selection

    5 V power supply (E5V). Then 5 V power provides 3.3 V for the microcontroller and its peripherals using on-board 3.3 V voltage regulator (U2). 5 V pin of J4 or J7 can also be used as an input power, so the AT-START-F425 board can be supplied through a 5 V power unit.

  • Page 10: Boot Mode Selection

    AT-START-F425 User Manual Boot mode selection At startup, three different boot modes are available for selection through pin configuration. Table 1. Boot mode selection jumper settings BOOT0 pin Jumper Boot mode configuration JP1 to GND or be OFF Boot from internal Flash memory (factory default setting)

  • Page 11: Leds

    USB micro-B interface, which is done by PD2 controlling SI2301 switch. AT-START-F425 board has a USB type-A extension interface (CN1). This is a USB host interface for connecting to U disk and other devices, without the need of USB OTG cable. The USB type-A interface has no power switch control.

  • Page 12: Resistors

    AT-START-F425 User Manual 0Ω resistors Table 2. 0Ωresistor settings Resistors State Description When JP3 OFF, 3.3V is connected to the microcontroller (MCU power power to supply AT32F425R8T7-7. consumption When JP3 OFF, 3.3V can be connected to an ammeter to measurement) measure the power consumption of the AT32F425R8T7-7.

  • Page 13: Extension Interfaces

    Female plug J3~J6 and male plug J7 support Arduino Uno R3 connector. Most of the daughter boards built on Arduino Uno R3 are applicable to AT-START-F425 board. Note: AT32F425R8T7-7 I/Os are 3.3 V-compatible with Arduino Uno R3, but not 5 V.

  • Page 14: 3.10.2 Lqfp64 I/O Extension Interface

    AT-START-F425 User Manual Connector Arduino pin name AT32F425 pin name Description number PB13 SPI2_SCK MOSI PB15 SPI2_MOSI RESET NRST External reset Ground PB12 SPI2_NSS PB11 PB11 for details on 0Ω resistors. (1) Refer to Table 2 3.10.2 LQFP64 I/O extension interface The I/Os of AT32F425R8T7-7 microcontroller can be connected to external devices through extension interfaces J1 and J2.

  • Page 15: Schematic

    AT-START-F425 User Manual Schematic Figure 4. Schematic (AT-Link-EZ) 2021.11.20 Rev 1.00...

  • Page 16: Figure 5. Schematic (Microcontroller)

    AT-START-F425 User Manual Figure 5. Schematic (microcontroller) 2021.11.20 Rev 1.00...

  • Page 17: Figure 6. Schematic (Power Supply And Peripherals)

    AT-START-F425 User Manual Figure 6. Schematic (power supply and peripherals) 2021.11.20 Rev 1.00...

  • Page 18: Figure 7. Schematic (Extension Interfaces)

    AT-START-F425 User Manual Figure 7. Schematic (extension interfaces) 2021.11.20 Rev 1.00...

  • Page 19: Revision History

    AT-START-F425 User Manual Revision history Table 4. Document revision history Date Revision Changes 2021.10.20 1.00 Initial release 2021.10.20 Rev 1.00...
  • Page 20 Purchasers hereby agrees that Artery’s products are not authorized for use as, and purchasers shall not integrate, promote, sell or otherwise transfer any Artery’s product to any customer or end user for use as critical components in (a) any medical, life saving or life...

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