mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2025-02-25 19:47:05 +08:00
188 lines
4.6 KiB
Markdown
188 lines
4.6 KiB
Markdown
# HIFIVE1 #
|
||
|
||
## 简介
|
||
|
||
[HIFIVE1](https://www.sifive.com/products/hifive1/) 是由 SiFive 公司推出的全球首款基于开源指令集 RISC-V 架构的商用 SoC Freedom E310 的开发板。
|
||
|
||

|
||
|
||
|
||
|
||
### 板载资源:
|
||
|
||
| 硬件 | 描述 |
|
||
| -- | -- |
|
||
|Soc| SiFive Freedom E310 (FE310) |
|
||
| 内核 | SiFive E31 RISC-V Core |
|
||
| 架构 | 32-bit RV32IMAC |
|
||
| 主频 | 320+ MHz |
|
||
| 性能 | 1.61 DMIPs/MHz, 2.73 Coremark/MHz |
|
||
|SRAM| 16KB |
|
||
|Flash| 16MB QSPI + 16KB 指令Cache |
|
||
|
||
## 编译说明
|
||
|
||
### 下载 Freedom Studio
|
||
|
||
Freedom Studio 是 SiFive 公司推出的一个集成开发环境,用来编写和调试基于 SiFive 处理器的软件。内嵌了编译好的 RISC-V GCC 工具链、OpenOCD、以及一些示例和文档。
|
||
|
||
下载地址:[官网下载](https://www.sifive.com/products/tools/)
|
||
|
||

|
||
|
||
下载成功之后,解压到和 rt-thread 源码同一目录下
|
||
|
||

|
||
|
||
### 配置工具链
|
||
|
||
工具链就在解压开的 IDE `F:\FreedomStudio\SiFive\riscv64-unknown-elf-gcc-20171231-x86_64-w64-mingw32\bin` 目录下。
|
||
|
||
在源码 `rt-thread/bsp/hifive1/` 目录下,运行 env 工具,输入下面的命令设置 gcc 工具链路径
|
||
|
||
```
|
||
set RTT_EXEC_PATH=F:\FreedomStudio\SiFive\riscv64-unknown-elf-gcc-20171231-x86_64-w64-mingw32\bin
|
||
```
|
||
|
||
或者通过`scons --exec-path="GCC工具链路径"`命令,在指定工具链位置的同时直接编译。
|
||
|
||
### 添加环境变量
|
||
|
||
将 **工具链**和**编译工具**的路径 添加到环境变量里,输入命令如下
|
||
|
||
```
|
||
set path=%path%;工具链的路径;编译工具的路径;
|
||
```
|
||
|
||
例如:
|
||
|
||
```
|
||
set path=%path%;F:\FreedomStudio\SiFive\riscv64-unknown-elf-gcc-20171231-x86_64-w64-mingw32\bin;F:\FreedomStudio\build-tools\bin
|
||
```
|
||
|
||

|
||
|
||
### 从 env 工具打开 IDE
|
||
|
||
利用 cd 命令,切换到解压开的 IDE 目录
|
||
|
||

|
||
|
||
输入 Freedom Studio 按 Tab 键 自动补全,然后按回车运行 IDE。
|
||
|
||

|
||
|
||
在弹出的窗口输入 workspace 创建工作空间,然后点击启动打开 IDE。
|
||
|
||

|
||
|
||
### 导入工程
|
||
|
||
在菜单栏点击 `File->Import`
|
||
|
||

|
||
|
||
按照下面的图片导入工程
|
||
|
||

|
||
|
||

|
||
|
||
|
||
|
||
### 编译
|
||
|
||

|
||
|
||
然后等待编译完成
|
||
|
||

|
||
|
||
|
||
|
||
|
||
## 烧写及执行
|
||
|
||
### 安装驱动
|
||
|
||
1. 使用 Micro USB 线连接电脑和开发板。
|
||
|
||
2. 然后双击安装 IDE 目录 `F:\FreedomStudio\SiFive\Drivers` 下的驱动文件
|
||
|
||
### 添加字符串定义
|
||
|
||
点击菜单栏 `Window->preferences` 按下图的步骤将 字符串 `cross_prefix` 定义为 `riscv64-unknown-elf-`
|
||
|
||

|
||
|
||
### 配置 Debug 参数
|
||
|
||
选中生成的 `rtthread.elf` 文件,右键配置 Debug 参数,如下图所示
|
||
|
||

|
||
|
||
按下图新建一个 Debug 选项
|
||
|
||

|
||
|
||
打开 `Debugger` 选项卡 添加如下参数
|
||
|
||
```
|
||
-f openocd.cfg
|
||
|
||
set mem inaccessible-by-default off
|
||
set arch riscv:rv32
|
||
set remotetimeout 250
|
||
```
|
||
|
||
如下图所示:
|
||
|
||

|
||
|
||
打开 `startup` 选项卡,去掉**主机模式**和**复位命令**
|
||
|
||

|
||
|
||
然后待程序停止在 main 函数处,然后点击继续运行程序就运行起来了。
|
||
|
||

|
||
|
||
### 运行结果
|
||
|
||
下载程序之后,连接串口(115200-N-8-1),可以看到RT-Thread的输出信息:
|
||
|
||
```
|
||
\ | /
|
||
- RT - Thread Operating System
|
||
/ | \ 3.0.4 build May 30 2018
|
||
2006 - 2018 Copyright by rt-thread team
|
||
msh >
|
||
```
|
||
|
||
## 4. 驱动支持情况及计划
|
||
|
||
| 驱动 | 支持情况 | 备注 |
|
||
| ------ | ---- | :------: |
|
||
| UART | 支持 | UART0_RX/TX:GPIO 16/17 |
|
||
|
||
|
||
### 4.1 IO在板级支持包中的映射情况
|
||
|
||
| IO号 | 板级包中的定义 |
|
||
| -- | -- |
|
||
| GPIO19 | LED_GREEN |
|
||
| GPIO21 | LED_BLUE |
|
||
| GPIO22 | LED_RED |
|
||
|
||
## 5. 联系人信息
|
||
|
||
维护人:
|
||
- [tanek](https://github.com/liangyongxiang)
|
||
|
||
## 6. 参考
|
||
|
||
* [HIFIVE1 Info](https://www.sifive.com/products/hifive1/)
|
||
* [HIFIVE1 Software Development Tools](https://www.sifive.com/products/tools/)
|
||
* [hifive1-getting-started-guide](https://www.sifive.com/documentation/boards/hifive1/hifive1-getting-started-guide/)
|
||
* [hifive1-schematics](https://www.sifive.com/documentation/boards/hifive1/hifive1-schematics/)
|