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README
Apache-2.0

arduino uno外观的stm32g4开发板

1. 介绍

该项目是一块PCB开发板,外观和Arduino uno外观类似,但是使用的是stm32g431芯片。

开发板接口与arduino uno排列类似,可以直接使用arduino shield板作为拓展。可以在如adafruitseeed studio等各种网站上找到非常多的拓展板(而且绝大部分都是开源的)

可以使用面包板辅助开发(运行程序为ARM2D官方示例)

该板具有的资源:

  • 板载DAPlink下载器(即为DAPLink官方程序,也可以换成合宙AIR32f103方案芯片,更快)
  • 串口通信(使用LPUART1,PA2-TX,PA3-RX)
  • 板载LED灯(PA5引脚)
  • 蜂鸣器(使用PB10引脚)
  • 陀螺仪(使用IIC1,PA15-SCL,PB9-SDA)
  • 磁力计(使用IIC1,PA15-SCL,PB9-SDA)
  • 外置128Mbit flash存储器
  • CAN总线收发器(因为没有CAN总线的设备,暂时未测试)

文件夹构成

PROG:存放示例程序
PCB:存放PCB和原理图,使用KICAD绘制

其余小功能

  1. xt30接口允许36V电源输入,转换成5V为单片机板供电。
    程序正常运行时的热成像图:
  2. 板子上的跳线帽可以拔下,为其他板子下载程序,也可以使用更高级的下载器为该板子下载程序。
  3. 开发低功耗应用时,可以将3V3的跳线帽拔下,串联电流表。这个点测量电流只会测量STM32G4单片机和陀螺仪,flash设备消耗的电流。

注意事项

制造时:

  1. L1,C9组成了基准源的滤波器,按需安装。实测L1直接贴0R电阻,C9不贴即可。
  2. 如果想要使用无源晶振,不焊接R2,焊接R5,C1,C8即可。
  3. 芯片理论上可以替换stm32G4系列的任意一款LQFP48封装的芯片。最高性能的芯片是g474ce
  4. BMI160似乎已经停产,但是QMI8658C,ICM42688等一系列芯片可以直接替换,驱动要改(未验证!!)

其余注意事项

  1. 想要设置最高主频,G431的晶振应该选择8MHz,这里cubemx有bug,无法设置最高主频为170M,但是实际上将PLLN设置成85,PLLR设置成/2,即为170M最高主频。

    8M有源晶振测试图
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简介

一块类似arduino uno,但是主控是stm32G431的开发板,板载daplink下载器,可以直接调试。 展开 收起
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