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-# NUCLEO-F412ZG 开发板 BSP 说明
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-
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-## 简介
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-
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-本文档为 RT-Thread 开发团队为 NUCLEO-F412ZG 开发板提供的 BSP (板级支持包) 说明。
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-
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-主要内容如下：
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-
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-- 开发板资源介绍
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-- BSP 快速上手
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-- 进阶使用方法
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-
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-通过阅读快速上手章节开发者可以快速地上手该 BSP，将 RT-Thread 运行在开发板上。在进阶使用指南章节，将会介绍更多高级功能，帮助开发者利用 RT-Thread 驱动更多板载资源。
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-
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-## 开发板介绍
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-
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-探索者 NUCLEO-F412ZG 是意法半导体推出的一款基于 ARM Cortex-M4 内核的开发板，最高主频为 100Mhz，该开发板具有丰富的板载资源，可以充分发挥 STM32F411ZG 的芯片性能。
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-
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-开发板外观如下图所示：
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-
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-该开发板常用 **板载资源** 如下：
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-
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-- MCU：STM32F412ZG，主频 100MHz，1024KB FLASH ，256KB RAM。
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-- 常用外设
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- - LED：3 个，USB communication (LD1), user LED (LD2), power LED (LD3) 。
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- - 按键，2 个，USER and RESET 。
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-- 常用接口：USB 支持 3 种不同接口：虚拟 COM 端口、大容量存储和调试端口。
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-- 调试接口，板载 ST-LINK/V2-1 调试器。
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-
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-开发板更多详细信息请参考意法半导体 [NUCLEO-F412ZG 开发板介绍](https://www.st.com/en/evaluation-tools/nucleo-f412zg.html)。
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-
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-## 外设支持
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-
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-本 BSP 目前对外设的支持情况如下：
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-
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-| **片上外设** | **支持情况** | **备注** |
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-| :------------ | :----------: | :-----------------------------------: |
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-| GPIO | 支持 | PA0, PA1... PH1 ---> PIN: 0, 1...63 |
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-| UART | 支持 | UART2,UART3 |
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-| Onchip Flash | 支持 | |
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-| USB Device | 支持 | |
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-
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-## 使用说明
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-
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-使用说明分为如下两个章节：
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-
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-- 快速上手
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-
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- 本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
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-
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-- 进阶使用
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-
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- 本章节是为需要在 RT-Thread 操作系统上使用更多开发板资源的开发者准备的。通过使用 ENV 工具对 BSP 进行配置，可以开启更多板载资源，实现更多高级功能。
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-
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-
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-### 快速上手
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-
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-本 BSP 为开发者提供 MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
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-
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-#### 硬件连接
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-
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-使用 Type-A to Micro-B 线连接开发板和 PC 供电，红色 LED LD3 (PWR) 和 LD1 (COM) 会点亮。
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-
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-#### 编译下载
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-
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-双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
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-
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-> 工程默认配置使用 ST-LINK 下载程序，点击下载按钮即可下载程序到开发板。
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-
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-#### 运行结果
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-下载程序成功之后，系统会自动运行，观察开发板上 LED 的运行效果，红色 LD3 和 LD1 常亮、蓝色 LD2 会周期性闪烁。
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-
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-USB 虚拟 COM 端口默认连接串口 3，在终端工具里打开相应的串口（115200-8-1-N），复位设备后，可以看到 RT-Thread 的输出信息:
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-
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-```bash
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- \ | /
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-- RT - Thread Operating System
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- / | \ 4.0.2 build Oct 20 2019
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- 2006 - 2019 Copyright by rt-thread team
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-msh >
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-```
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-### 进阶使用
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-
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-此 BSP 默认只开启了 GPIO 和 串口 3 的功能，更多高级功能需要利用 ENV 工具对 BSP 进行配置，步骤如下：
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-
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-1. 在 BSP 下打开 env 工具。
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-
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-2. 输入 `menuconfig` 命令配置工程，配置好之后保存退出。
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-
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-3. 输入 `pkgs --update` 命令更新软件包。
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-
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-4. 输入 `scons --target=mdk5/iar` 命令重新生成工程。
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-
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-本章节更多详细的介绍请参考 [STM32 系列 BSP 外设驱动使用教程](../docs/STM32 系列 BSP 外设驱动使用教程. md)。
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-
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-## 注意事项
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-
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-暂无
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-
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-## 联系人信息
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-
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-维护人:
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-
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-- [flybreak](https://github.com/guozhanxin) ，邮箱：<g1171407708@163.com>
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+# STM32F412-Nucleo BSP Introduction
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+
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+[中文](README_zh.md)
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+
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+## MCU: STM32F412ZG @100MHz, 1024KB FLASH, 256KB RAM
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+
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+STM32F412xE/G devices are based on the high-performance Arm® Cortex® -M4 32-bit RISC core operating at a frequency of up to 100 MHz. Their Cortex®-M4 core features a Floating point unit (FPU) single precision which supports all Arm single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
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+
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+STM32F412xE/G devices belong to the STM32 Dynamic Efficiency™ product line (with products combining power efficiency, performance and integration) while adding a new innovative feature called Batch Acquisition Mode (BAM) allowing even more power consumption saving during data batching.
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+STM32F412xE/G devices incorporate high-speed embedded memories (up to 1 Mbyte of Flash memory, 256 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses, three AHB buses and a 32-bit multi-AHB bus matrix.
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+All devices offer one 12-bit ADC, a low-power RTC, twelve general-purpose 16-bit timers, two PWM timers for motor control and two general-purpose 32-bit timers.
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+They also feature standard and advanced communication interfaces:
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+In addition, STM32F412xE/G devices embed advanced peripherals:
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+STM32F412xE/G devices are offered in 7 packages ranging from 48 to 144 pins. The set of available peripherals depends on the selected package.
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+The STM32F412xE/G operates in the -40 to +125 °C temperature range from a 1.7 (PDR OFF) to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.
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+These features make the STM32F412xE/G microcontrollers suitable for a wide range of applications.
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+
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+#### KEY FEATURES
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+
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+- Dynamic Efficiency Line with BAM (Batch Acquisition Mode)
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+- Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 100 MHz, memory protection unit, 125 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
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+- Memories
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+ - Up to 1 Mbyte of Flash memory
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+ - 256 Kbyte of SRAM
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+ - Flexible external static memory controller with up to 16-bit data bus: SRAM, PSRAM, NOR Flash memory
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+ - Dual mode Quad-SPI interface
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+- LCD parallel interface, 8080/6800 modes
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+- Clock, reset and supply management
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+ - 1.7 V to 3.6 V application supply and I/Os
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+ - POR, PDR, PVD and BOR
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+ - 4-to-26 MHz crystal oscillator
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+ - Internal 16 MHz factory-trimmed RC
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+ - 32 kHz oscillator for RTC with calibration
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+ - Internal 32 kHz RC with calibration
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+- Power consumption
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+ - Run: 112 μA/MHz (peripheral off)
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+ - Stop (Flash in Stop mode, fast wakeup time): 50 μA Typ @ 25 °C; 75 μA max @25 °C
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+ - Stop (Flash in Deep power down mode, slow wakeup time): down to 18 μA @ 25 °C; 40 μA max @25 °C
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+ - Standby: 2.4 μA @25 °C / 1.7 V without RTC; 12 μA @85 °C @1.7 V
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+ - VBAT supply for RTC: 1 μA @25 °C
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+- 1×12-bit, 2.4 MSPS ADC: up to 16 channels
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+- 2x digital filters for sigma delta modulator, 4x PDM interfaces, stereo microphone support
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+- General-purpose DMA: 16-stream DMA
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+
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+- Up to 17 timers: up to twelve 16-bit timers, two 32-bit timers up to 100 MHz each with up to four IC/OC/PWM or pulse counter and quadrature (incremental) encoder input, two watchdog timers (independent and window), one SysTick timer
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+- Debug mode
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+ - Serial wire debug (SWD) & JTAG
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+ - Cortex®-M4 Embedded Trace Macrocell™
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+- Up to 114 I/O ports with interrupt capability
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+ - Up to 109 fast I/Os up to 100 MHz
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+ - Up to 114 five V-tolerant I/Os
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+- Up to 17 communication interfaces
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+ - Up to 4x I2C interfaces (SMBus/PMBus)
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+ - Up to 4 USARTs (2 x 12.5 Mbit/s, 2 x 6.25 Mbit/s), ISO 7816 interface, LIN, IrDA, modem control)
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+ - Up to 5 SPI/I2Ss (up to 50 Mbit/s, SPI or I2S audio protocol), out of which 2 muxed full-duplex I2S interfaces
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+ - SDIO interface (SD/MMC/eMMC)
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+ - Advanced connectivity: USB 2.0 full-speed device/host/OTG controller with PHY
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+ - 2x CAN (2.0B Active)
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+- True random number generator
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+- CRC calculation unit
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+- 96-bit unique ID
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+- RTC: subsecond accuracy, hardware calendar
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+- All packages are ECOPACK®2
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+
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+
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+
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+## Read more
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+
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+| Documents | Description |
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+| :----------------------------------------------------------: | :----------------------------------------------------------: |
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+| [STM32_Nucleo-144_BSP_Introduction](../docs/STM32_Nucleo-144_BSP_Introduction.md) | How to run RT-Thread on STM32 Nucleo-144 boards (**Must-Read**) |
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+| [STM32F412ZG ST Official Website](https://www.st.com/en/microcontrollers-microprocessors/stm32f412zg.html#documentation) | STM32F412ZG datasheet and other resources |
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+
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+
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+
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+## Maintained By
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+
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+[flybreak](https://github.com/guozhanxin) g1171407708@163.com
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+
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+
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+
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+## Translated By
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+
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+Meco Man @ RT-Thread Community
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+
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+> jiantingman@foxmail.com
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+>
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+> https://github.com/mysterywolf
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mysterywolf