Merge pull request #1437 from uestczyh222/master
[Bsp][STM32F4xx-HAL]Add Readme.md
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Bernard Xiong
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# STM32F4xx-HAL 板级支持包
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## 1. 简介
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STM32F4 是由意法半导体推出的Cortex-M4内核的高性能单片机
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包括如下硬件特性：
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| 硬件 | 描述 |
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| -- | -- |
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|芯片型号| STM32F4全系列 |
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|CPU| Cortex-M4 |
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|主频| 84MHz-208MHz |
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## 2. 编译说明
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| 环境 | 说明 |
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| ------------ | ------------------------------------------------------------ |
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| PC操作系统 | Linux/MacOS/Windows |
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| 编译器 | arm-none-eabi-gcc version 6.3.1 20170620 (release)/armcc/iar |
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| 构建工具 | scons/mdk5/iar |
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| 依赖软件环境 | Env工具/(MDK或IAR或arm-none-eabi-gcc)/git/调试器驱动 |
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1) 下载源码
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```bash
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git clone https://github.com/RT-Thread/rt-thread.git
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```
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2) 配置工程并准备env
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（Linux/Mac）
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```bash
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cd rt-thread/bsp/stm32f4xx-HAL
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scons --menuconfig
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source ~/.env/env.sh
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pkgs --upgrade
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```
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（Windows）
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>在[RT-Thread官网][1]下载ENV工具包
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3) 配置芯片型号
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（Linux/Mac）
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```bash
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scons --menuconfig
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```
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（Windows(ENV环境中)）
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```bash
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menuconfig
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```
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在menuconfig页面配置并选择对应的芯片型号，若开发环境为MDK/IAR，则需要生成工程
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4) 生成工程(Mac/Linux下请跳过此步骤)
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（Windows IAR）
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```bash
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SET RTT_CC=iar
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scons --target=iar -s
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```
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（Windows MDK5）*
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```bash
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scons --target=mdk5 -s
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```
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*该板级支持包不支持生成mdk4的工程
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**MDK 与 IAR 在生成完成工程之后一定要在工程中手动选择一次芯片信号，否则会产生严重编译错误**
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5) 编译
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使用MDK或IAR请参见对应教程
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（Windows arm-none-eabi-gcc）
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使用以下指令设置gcc路径
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```bash
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SET RTT_EXEC_PATH=[GCC路径]
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```
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（Linux/Mac arm-none-eabi-gcc）
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使用以下指令设置gcc路径
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```bash
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export RTT_EXEC_PATH=[GCC路径]
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```
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编译（WindowsLinux/Mac arm-none-eabi-gcc）
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```bash
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scons -j4
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```
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出现下列信息即为编译成功
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```bash
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LINK rtthread-stm32f4xx.elf
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arm-none-eabi-objcopy -O binary rtthread-stm32f4xx.elf rtthread.bin
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arm-none-eabi-size rtthread-stm32f4xx.elf
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text data bss dec hex filename
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41596 356 1456 43408 a990 rtthread-stm32f4xx.elf
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scons: done building targets.
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```
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如果编译正确无误，会产生rtthread-stm23f4xx.elf、rtthread.bin文件。其中rtthread.bin为二进制固件
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## 3. 烧写及执行
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烧写可以使用仿真器 ISP等多种方式 此处不再赘述
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### 3.1 运行结果
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如果编译 & 烧写无误，会在串口2*上看到RT-Thread的启动logo信息：
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```bash
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\ | /
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- RT - Thread Operating System
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/ | \ 3.0.4 build May 15 2018
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2006 - 2018 Copyright by rt-thread team
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msh />
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```
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*默认串口
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## 4. 驱动支持情况及计划
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| 驱动 | 支持情况 | 备注 |
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| ---------- | :------: | :--------------------------: |
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| UART | 支持 | UART1/2/6 |
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| GPIO | 支持 | 自动根据芯片型号选择引脚布局 |
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| SPI | 支持 | SPI1/2/3 |
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| SPI Flash | 支持 | W25QXX |
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| USB Device | 支持 | OTGFS,暂不支持OTGHS |
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| USB Host | 支持 | OTGFS,暂不支持OTGHS |
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| IWG | 支持 | / |
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| I2c | 支持 | 软件I2C |
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| RTC | 支持 | RTC时钟自动配置 |
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### 4.1 IO在板级支持包中的映射情况
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| IO号 | 板级包中的定义 |
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| -- | -- |
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| PB6 | I2C SCL |
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| PB7 | I2C SDA |
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| PA9 | USART1 TX |
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| PA10 | USART1 RX |
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| PA2 | USART2 TX |
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| PA3 | USART2 RX |
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| PC6 | USART6 TX |
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| PC7 | USART6 RX |
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| PA5 | SPI1 SCK |
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| PA6 | SPI1 MISO |
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| PA7 | SPI1 MOSI |
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| PB13 |SPI2 SCK |
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| PB14 |SPI2 MISO |
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| PB15 |SPI2 MOSI |
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| PC10 |SPI3 SCK |
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| PC11 |SPI3 MISO |
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| PC12 |SPI3 MOSI |
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## 5. menuconfig Bsp菜单详解
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| 选项 | 解释 |
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| -- | -- |
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| Device type | 选择芯片型号，修改此处需修改MDK/IAR工程为相同芯片型号 |
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| Using HSI as clock source | 不使用外部时钟源，该选项目前不能开启 |
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| HSE Value | 外部时钟源的频率，单位(HZ) |
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| System Clock Value | 系统时钟频率，该值会自动计算时钟树，某些特定频率下无法通过PLLQ产生48M时钟，可能导致USB SDIO等设备时钟异常，可使用STM32 Cube MX工具配置需要的时钟树替换board.c中的时钟初始化部分 |
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| Using UART1 | 开启串口1，串口1的设备名为"uart1" |
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| Using UART2 | 开启串口2，串口1的设备名为"uart2" |
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| Using UART6 | 开启串口6，串口1的设备名为"uart6" |
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| Using SPI1 | 开启SPI1，设备名为"spi1" |
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| Using SPI2 | 开启SPI2，设备名为"spi2" |
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| Using SPI3 | 开启SPI3，设备名为"spi3" |
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| W25QXX CS Pin index | SPI flash 的片选，接入单片机的引脚号 |
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| W25QXX Spi bus name | SPI flash 所使用的总线设备名称 |
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| USB Host Config | USB主机模式的配置菜单 |
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| using a gpio control usb power | 根据具体硬件，选择是否使用一个GPIO来控制USB主机的电源开启 |
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| power control pin | 控制USB主机的电源控制引脚号 |
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| current check pin | USB主机的电流过载检测引脚号 |
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| using vbus check pin | 选择是否开启USB VBUS检测 |
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*部分选项需要在RT-Thread组件菜单中开启对应的设备框架才能显示。
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## 6. 联系人信息
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维护人:
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[uestczyh222][4] < [lymz@foxmail.com][5] >
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[1]: https://www.rt-thread.org/page/download.html
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[4]: https://github.com/uestczyh222
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[5]: mailto:lymz@foxmail.com
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