National N32457QE EVB User Manual

Development board hardware

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N32457QE_EVB Development board hardware User
Guide
Introduction
The purpose of this document is to enable users to quickly get familiar with the
N32G457QE_EVB development board, understand the function of the
development board, use instructions and precautions, so as to conduct MCU
debugging and development based on the development board.
User guide
Nations Technologies Inc.
Tel:+86-755-86309900
Email:info@nationstech.com
Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
Nanshan District, Shenzhen, 518057, P.R.China

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Summary of Contents for National N32457QE EVB

  • Page 1 User guide N32457QE_EVB Development board hardware User Guide Introduction The purpose of this document is to enable users to quickly get familiar with the N32G457QE_EVB development board, understand the function of the development board, use instructions and precautions, so as to conduct MCU debugging and development based on the development board.
  • Page 2: Table Of Contents

    CONTENTS N32457QE_EVB Development board hardware User Guide ..............1 Hardware Development Instructions ....................1 Introduction ..........................1 Development board function ....................1 Development board layout ...................... 2 Development board key jumper instructions ................6 Schematic diagram of N32G457QE development board ............7 Version history ..........................
  • Page 3: N32457Qe_Evb Development Board Hardware User Guide

    1 Hardware Development Instructions Introduction The N32G457QEL7_EVB development board is used for sample development of high- performance 32-bit N32G45x series chips of Nations Technologies Inc.This document describes in detail the functions, usage instructions, and precautions of the N32G457QE series development board. Development board function The main MCU chip model of the development board is N32G457QEL7, LQFP128 pin package, all function interfaces are connected to facilitate customer development, in addition, there are power...
  • Page 4: Development Board Layout

    Development board layout GPIO RS232 RJ45 DC JACK Power switch TF_CARD Power jumper USB COMM GPIO GPIO 3.3V&GND light-dependent resistor& Potentiometer Fill light (ADC) CODEC Infrared Buzzer TSC& NSLINK transceiver Mechanical buttons Figure 1-1 Development board layout TOP layer Nations Technologies Inc. Tel:+86-755-86309900 Email:info@nationstech.com Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
  • Page 5 Figure 1-2 Development board layout BOTTOM layer Power supply for development board The development board has three power supply modes: 1) DCJACK power supply, the input voltage range is 6-12V; 2) USB power supply; 3) NSLINK power supply.DCJACK bit number J100, USB bit number J4, NSLINK bit number J183, the three power supply modes are controlled by switch S1.After switching S1, the power input to LDO is converted to 3.3V voltage, and then the voltage is divided into two channels, one of which supports MCU power supply alone and is selected by...
  • Page 6 CAN1&CAN2 convert two CAN interfaces J9 and J10 through CAN transceiver (TJA1050). Both CAN interfaces are located at the TOP layer. TF_CARD Onboard TF card slot, TF card slot is located on the TOP surface of the development board, bit number J28. CODEC The development board adopts CODEC chip (VS1053B), input LINE_IN interface J19 and electret MIC U16, output a headphone interface J21 through power amplifier chip...
  • Page 7 10) SPI_FLASH&QSPI_FLASH Develop onboard SPI FLASH (W25Q128JVSIQTR) and QSPI FLASH (P25Q40ha-SSH-it), SPI FLASH is located at the TOP layer, bit number U7, QSPI FLASH is located at the TOP layer, bit number U5, both through jumper selection, If SPI FLASH is selected, connect jumper J29, J30, J31, J32;If QSPI FLASH is used, connect jumpers J1, J2, J8, J12, J15, and J20.
  • Page 8: Development Board Key Jumper Instructions

    Development board key jumper instructions Table 1-2 Development board key jumper description list- Jump line Jump line function Directions for use item No. Power supply for other functional modules except 3.3V power supply option MCU must be connected 3.3V power supply option To supply power to MCU, must connect It must be connected when using the Ethernet J16, J17...
  • Page 9: Schematic Diagram Of N32G457Qe Development Board

    Schematic diagram of N32G457QE development board For the schematic diagram of N32G457QE, see the PDF file N32G457QE_EVB_V1.2. Description of peripheral devices: VCC_MCU: pin VDD_3 two capacitors, 4.7uF and 0.1uF respectively, the rest of the power pin nearby 0.1uF capacitor. VCC33: Place 0.1uF capacitor near pin to ground. DP, DM: 33Ω...
  • Page 10: Version History

    2 Version history Version Date Note V1.0 2020-5-16 Create a document Nations Technologies Inc. Tel:+86-755-86309900 Email:info@nationstech.com Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North. Nanshan District, Shenzhen, 518057, P.R.China...
  • Page 11: Legal Notice

    3 Notice This document is the exclusive property of Nations Technologies Inc. (Hereinafter referred to as NATIONS). This document, and the product of NATIONS described herein (Hereinafter referred to as the Product) are owned by NATIONS under the laws and treaties of the People’s Republic of China and other applicable jurisdictions worldwide.

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