generated from hulk/gd32e23x_template
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8 Commits
feature-pr
...
feature-ti
Author | SHA1 | Date | |
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e5f3bf900a | |||
3f75e99553 | |||
f67baed8c5 | |||
ac74c30923 | |||
9f615ba3a3 | |||
705cb68764 | |||
cc4d898114 | |||
f8a41af344 |
@@ -6,13 +6,13 @@ set(PROJECT_NAME "XLSW_3DP_US-IR")
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project(${PROJECT_NAME})
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set(VERSION_MAJOR 0)
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set(VERSION_MINOR 2)
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set(VERSION_MINOR 1)
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set(VERSION_PATCH 0)
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set(VERSION "V${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
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string(TIMESTAMP CURRENT_DATE "%Y-%m-%d")
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# Options 1
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set(OPT1 "_[12V]")
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set(OPT1 "_[24V]")
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#set(OPT1 "_[SW_IIC]")
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# Options 2
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79
CommunicationProtocol.md
Normal file
79
CommunicationProtocol.md
Normal file
@@ -0,0 +1,79 @@
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# US&IR传感器模块通信协议
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## US&IR传感器模块通信协议
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| **序号** | **修改内容** | **版本** | **日期** | **修改人** |
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|:------:|:--------:|:------:|:----------:|:-------:|
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| 1 | 初版 | V0.1 | 2025-01-20 | Hulk |
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| | | | | |
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| | | | | |
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| | | | | |
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### 发包格式
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| **包头** | **类型** | **数据长度** | **数据** | **校验** |
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|:------:|:------:|:-----------:|:------:|:------:|
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| D5 | 0x04 | Data Length | Data | CRC |
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- 数据长度只包含数据部分,不包含包头、类型、数据长度、校验
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- CRC求和校验,包含类型、数据长度、数据
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- 数据部分为ascii码
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### 回包格式
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| **包头** | **状态码** | **数据长度** | **数据** | **校验** |
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|:------:|:----------:|:-----------:|:------:|:------:|
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| B5 | 0xF0 正常包 | Data Length | Data | CRC |
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| B5 | 0xF1 CRC错误 | Data Length | Data | CRC |
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| B5 | 0xF2 包头错误 | Data Length | Data | CRC |
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| B5 | 0xF3 类型错误 | Data Length | Data | CRC |
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| B5 | 0xF4 包长度错误 | Data Length | Data | CRC |
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- 数据长度只包含数据部分,不包含包头、类型、数据长度、校验
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- CRC求和校验,包含状态码、数据长度、数据
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- 有效数据部分为uint32_t,高字节在前
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- 包错误和指令错误时,数据部分为ascii码 `err`
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-------------------
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## US&IR传感器模块功能
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### 1. 读取液面的超声距离
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- 发送M1指令,读取距离液面的超声距离。
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- `D5 04 02 4D 31 84`
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- 电涡流传感器模块涡流回复数据
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- `B5 F0 02 1D C0 CF`, 有效数据为 `0x1DC0`,转换为`7616`,距离为76.16mm
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- `B5 F0 02 16 A5 AD`, 有效数据为 `0x16A5`,转换为`5797`,距离为57.97mm
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- 错误命令(M3指令)回包
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- `B5 F0 03 65 72 72 3C`,有效数据为 `err`
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- CRC错误回包
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- `B5 F1 03 65 72 72 3D`, 有效数据为 `err`
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- 包头错误回包
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- `B5 F2 03 65 72 72 3E`, 有效数据为 `err`
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- 类型错误回包
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- `B5 F3 03 65 72 72 3F`, 有效数据为 `err`
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- 数据长度错误回包
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- `B5 F4 03 65 72 72 40`, 有效数据为 `err`
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### 2. 读取液面红外温度传感器数据
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- 发送M2指令,读取液面红外温度传感器数据。
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- `D5 04 02 4D 32 85`
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- 电涡流传感器模块温度补偿回复数据
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- `B5 F0 02 00 BD AF`, 有效数据为 `0x00BD`,转换为`189`(单位为摄氏度*10)温度为18.9℃
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- `B5 F0 02 01 0C FF`, 有效数据为 `0x010C`,转换为`268`(单位为摄氏度*10)温度为26.8℃
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- 错误命令(M3指令)回包
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- `B5 F0 03 65 72 72 3C`,有效数据为 `err`
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- CRC错误回包
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- `B5 F1 03 65 72 72 3D`, 有效数据为 `err`
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- 包头错误回包
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- `B5 F2 03 65 72 72 3E`, 有效数据为 `err`
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- 类型错误回包
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- `B5 F3 03 65 72 72 3F`, 有效数据为 `err`
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- 数据长度错误回包
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- `B5 F4 03 65 72 72 40`, 有效数据为 `err`
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### 3. 读取数据时间间隔
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- 推荐数据时间间隔至少为1s
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83
README.md
83
README.md
@@ -1,80 +1,9 @@
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# gd32e23x_template
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本项目为`GD32E230Fx`系列的基于Clion的CMake开发的工程模板。本人暂未入门,强行上强度,放弃keil,拥抱开源。遂尝试使用arm-none-eabi-gcc进行开发。
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有幸寻得[@mo10 ](https://github.com/mo10)大佬的帮助,本项目的基础目录架构与CMakeLists.txt与toolchain.cmake均为大佬提供。
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# XLSW-3DP-Sensor-UltraSonic&IR
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## 关于本项目
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本项目默认的芯片型号为`GD32E230F4`,但是可以根据需要修改为其他型号,具体修改方法请参考下方`关于链接脚本`的说明。
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### 版本号
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默认版本号为`0.0.1`,在`CMakeLists.txt`中修改`PROJECT_VERSION`即可。
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### 项目名称
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默认项目名称为`gd32e23x_template`,在`CMakeLists.txt`中修改`PROJECT_NAME`即可。请先修改项目名称再配置编译环境。
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### 软件IIC与硬件IIC
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本项目中提供了软件IIC与硬件IIC的驱动,但是默认使用硬件IIC,如果需要使用软件IIC,请在`board_config.h`中取消注释`// #define SOFTWARE_IIC`(line 8)。
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### 编译选项
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本项目预留了两个编译选项,`OPT1`与`OPT2`,默认均为空,请根据需要自行修改,例如`OPT1`为`_[HW_IIC]`,`OPT2`为`_[NO_LED]`。
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`OPT1`与`OPT2`均在`CMakeLists.txt`中可修改。
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### 关于编译日期
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本项目在`CMakeLists.txt`中添加了编译日期。
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| **版本号** | **修改内容** | **日期** | **修改人** |
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|:-------:|:--------:|:----------:|:-------:|
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| v0.0.1 | 非稳定版本 | 2025-01-20 | Hulk |
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### 关于led
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本项目默认开启了LED闪烁,并使用TIMER16进行定时。
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## US&IR传感器模块通信协议
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## 关于C标准库的printf的重写
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在Keil开发中,ARMClang有自己的microLIB,所以直接调用,然后重写fputc函数即可,但在gcc中需要重写`_write`函数,本项目模板中已经在`main.c`中完成重写。
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同时需要添加`--spaces=nano.spaces`编译参数。
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但是printf本身占用flash比较大,建议谨慎使用,尤其是本项目搭建时候采用的型号为`GD32E230F4V6`内存非常有限,重写后加上spaces设置,目前能用。
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## 添加源文件与头文件
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在`ProjectDir/CMakeLists.txt`中21行左右,添加对应源文件即可。
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```cmake
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set(TARGET_C_SRC
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${CMAKE_SOURCE_DIR}/src/main.c
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${CMAKE_SOURCE_DIR}/src/gd32e23x_it.c
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${CMAKE_SOURCE_DIR}/src/systick.c
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)
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```
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## 关于链接脚本
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注意芯片选型, 不同型号的芯片 FLASH 和 RAM 大小不同。需要修改链接脚本`ld/gd32e23x_gcc.ld`
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| 芯片型号 | FLASH | RAM |
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|------------|-------|-----|
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| GD32E230F4 | 16K | 4K |
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| GD32E230F8 | 64K | 8K |
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```linkerscript
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/* memory map */
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MEMORY
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{
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FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 16K
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RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 4K
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}
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```
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## 关于Startup文件
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[@mo10 ](https://github.com/mo10)大佬提供的一些想法,具体如下。但是我目前还没测试到实际的影响和作用范围,所以暂未同步进来,仅作为备忘内容
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```asm
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Reset_Handler:
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ldr r0, =_sp
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mov sp, r0
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ldr r0, =_end
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msr msplim, r0
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/* copy the data segment into ram */
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movs r1, #0
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b LoopCopyDataInit
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```
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## Ref
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1. 参考LD/Startup
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[https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/linker.ld](https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/linker.ld)
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[https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/startup.s](https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/startup.s)
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2. 官方LD/Startup
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使用Embedded Builder工具生成的C标准库生成的模板
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通信协议:[US&IR通信协议](CommunicationProtocol.md)
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@@ -9,8 +9,23 @@
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// #define DEBUG_VERBOES
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#define POWER_SUPPLY_12V
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// #define POWER_SUPPLY_24V
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// #define POWER_SUPPLY_12V
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#define POWER_SUPPLY_24V
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// #define GD32E230F4
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// #define GD32E230F8
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/******************************************************************************/
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#ifdef GD32E230F8
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#define USART_RCU RCU_USART1
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#define USART_PHY USART1
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#define USART_PHY_IRQ USART1_IRQn
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#else
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#define USART_RCU RCU_USART0
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#define USART_PHY USART0
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#define USART_PHY_IRQ USART0_IRQn
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#endif
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/******************************************************************************/
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@@ -26,7 +41,6 @@
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#error "Please define either POWER_SUPPLY_12V or POWER_SUPPLY_24V"
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#endif
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/******************************************************************************/
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#define I2C_GPIO_RCU RCU_GPIOF
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@@ -41,14 +55,14 @@
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/******************************************************************************/
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#define USART_GPIO_RCU RCU_GPIOA
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#define USART_RCU RCU_USART1
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// #define USART_RCU RCU_USART0
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#define USART_GPIO_PORT GPIOA
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#define USART_GPIO_AF GPIO_AF_1
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#define USART_TX_PIN GPIO_PIN_2
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#define USART_RX_PIN GPIO_PIN_3
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#define USART_PHY USART1
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// #define USART_PHY USART0
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#define USART_PHY_BAUDRATE 115200U
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#define USART_PHY_IRQ USART1_IRQn
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// #define USART_PHY_IRQ USART0_IRQn
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#define RS485_EN_PORT GPIOA
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#define RS485_EN_PIN GPIO_PIN_4
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|
@@ -13,21 +13,17 @@
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#include "fwdgt.h"
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "ultrasonic_analog.h"
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/******************************************************************************/
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#define RX_BUFFER_SIZE 32
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#define PROTOCOL_PACKAGE_HEADER 0xD5
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#define PROTOCOL_BOARD_TYPE 0x04
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#define PROTOCOL_PACKAGE_LENGTH 0x02
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#define PACKET_START_BYTE 0xD5
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#define MAX_SERIAL_CMD_SIZE 16
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#define BUF_SIZE 8
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/******************************************************************************/
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typedef enum
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@@ -39,21 +35,9 @@ typedef enum
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VALIDATION_LENGTH_ERROR = 8
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} validation_result_t;
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typedef enum {
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PS_LEN,
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PS_TYPE,
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PS_PAYLOAD,
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PS_CRC,
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PS_NULL
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}packet_state_t;
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/******************************************************************************/
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// void process_command(uint8_t* cmd, size_t length);
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bool code_seen(char code);
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float code_value(void);
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void process_command(uint8_t* cmd, size_t length);
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uint8_t calculate_crc(uint8_t data[], uint8_t data_length);
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@@ -69,10 +53,4 @@ void gd60914_tempture_report(void);
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void ultrasonic_distance_report(void);
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void start_communication(void);
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void get_command(void);
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void prcess_command(void);
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#endif //RS485_PROTOCOL_H
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|
17
inc/usart.h
17
inc/usart.h
@@ -8,25 +8,8 @@
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#include "gd32e23x.h"
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#include "board_config.h"
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#define RX_BUFFER_SIZE 64
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typedef struct
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{
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unsigned char buffer[RX_BUFFER_SIZE];
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volatile unsigned int head;
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volatile unsigned int tail;
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}ring_buffer_t;
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static ring_buffer_t rx_buffer = {{0}, 0, 0}; // ring buffer for USART0
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void usart_config(void);
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void rs485_config(void);
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void store_char(unsigned char data, ring_buffer_t *rx_buf);
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uint16_t uart_available(void);
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int uart_read(void);
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#endif //USART_H
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|
@@ -1,8 +1,8 @@
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/* memory map */
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MEMORY
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{
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FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 64K
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RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 8K
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FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 16K
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RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 4K
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}
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ENTRY(Reset_Handler)
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|
@@ -35,7 +35,6 @@ OF SUCH DAMAGE.
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#include "gd32e23x_it.h"
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extern uint16_t g_capture_value;
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extern ring_buffer_t rx_buffer;
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|
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/*!
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\brief this function handles NMI exception
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@@ -118,7 +117,7 @@ void TIMER5_IRQHandler(void) {
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} else {
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//! turn off led & reconfig timer13 period to 1000(100ms)
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gpio_bit_write(LED_PORT, LED_PIN, SET);
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timer_autoreload_value_config(LED_BLINK_TIMER, 8000);
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timer_autoreload_value_config(LED_BLINK_TIMER, 800);
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}
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led_status = !led_status;
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}
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@@ -158,28 +157,26 @@ void EXTI0_1_IRQHandler(void) {
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}
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}
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void USART1_IRQHandler(void) {
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// static uint8_t rx_index = 0;
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// static uint8_t rx_buffer[RX_BUFFER_SIZE];
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void USART0_IRQHandler(void) {
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static uint8_t rx_index = 0;
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static uint8_t rx_buffer[RX_BUFFER_SIZE];
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|
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if (RESET != usart_interrupt_flag_get(USART_PHY, USART_INT_FLAG_RBNE)) {
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// usart_interrupt_flag_clear(USART_PHY, USART_INT_FLAG_RBNE);
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uint8_t received_data = (uint8_t) usart_data_receive(USART_PHY);
|
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if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE)) {
|
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usart_interrupt_flag_clear(USART0, USART_INT_FLAG_RBNE);
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uint8_t received_data = (uint8_t) usart_data_receive(USART0);
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|
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// printf("%c", received_data);
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// 将接收到的数据存储到缓冲区
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// if (rx_index < RX_BUFFER_SIZE - 1) {
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||||
// rx_buffer[rx_index++] = received_data;
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||||
// }
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store_char(received_data, &rx_buffer);
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if (rx_index < RX_BUFFER_SIZE - 1) {
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rx_buffer[rx_index++] = received_data;
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||||
}
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||||
}
|
||||
|
||||
if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_IDLE)) {
|
||||
usart_interrupt_flag_clear(USART0, USART_INT_FLAG_IDLE);
|
||||
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||||
process_command(rx_buffer, rx_index); // 处理指令
|
||||
|
||||
rx_index = 0; // 重置缓冲区索引
|
||||
return;
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||||
}
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||||
//
|
||||
// if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_IDLE)) {
|
||||
// usart_interrupt_flag_clear(USART0, USART_INT_FLAG_IDLE);
|
||||
//
|
||||
// process_command(rx_buffer, rx_index); // 处理指令
|
||||
//
|
||||
// rx_index = 0; // 重置缓冲区索引
|
||||
// return;
|
||||
// }
|
||||
}
|
30
src/main.c
30
src/main.c
@@ -6,8 +6,6 @@
|
||||
*/
|
||||
#include "main.h"
|
||||
|
||||
#include "newlib.h"
|
||||
|
||||
volatile uint8_t g_temperature_uint8[2] = {0};
|
||||
volatile uint16_t g_capture_value;
|
||||
|
||||
@@ -27,36 +25,34 @@ int main(void)
|
||||
/* configure LED */
|
||||
led_blink_config();
|
||||
/* configure FWDGT */
|
||||
// watchdog_init();
|
||||
watchdog_init();
|
||||
|
||||
// #ifdef SOFTWARE_IIC
|
||||
// soft_i2c_config();
|
||||
// #else
|
||||
// i2c_config();
|
||||
// #endif
|
||||
#ifdef SOFTWARE_IIC
|
||||
soft_i2c_config();
|
||||
#else
|
||||
i2c_config();
|
||||
#endif
|
||||
|
||||
printf("system start!\r\n");
|
||||
|
||||
// ultrasonic_config();
|
||||
ultrasonic_config();
|
||||
|
||||
while(1){
|
||||
// gd60914_get_object_tempture();
|
||||
gd60914_get_object_tempture();
|
||||
|
||||
delay_ms(500);
|
||||
start_communication();
|
||||
printf("hello world!\r\n");
|
||||
delay_ms(50);
|
||||
|
||||
// ultrasonic_pwm_out_cycles(ULTRASONIC_TX_CYCLES);
|
||||
ultrasonic_pwm_out_cycles(ULTRASONIC_TX_CYCLES);
|
||||
|
||||
// watchdog_reload();
|
||||
watchdog_reload();
|
||||
}
|
||||
}
|
||||
|
||||
/* retarget the C library printf function to the USART */
|
||||
int _write(int fd, char *pBuffer, int size) {
|
||||
for (int i = 0; i < size; i++) {
|
||||
usart_data_transmit(USART1, (uint8_t) pBuffer[i]);
|
||||
while (RESET == usart_flag_get(USART1, USART_FLAG_TBE));
|
||||
usart_data_transmit(USART0, (uint8_t) pBuffer[i]);
|
||||
while (RESET == usart_flag_get(USART0, USART_FLAG_TBE));
|
||||
}
|
||||
return size;
|
||||
}
|
||||
|
@@ -6,81 +6,49 @@
|
||||
|
||||
extern uint8_t g_temperature_uint8[2];
|
||||
|
||||
static int buf_index_r = 0;
|
||||
static int buf_index_w = 0;
|
||||
static int buf_length = 0;
|
||||
void process_command(uint8_t *cmd, size_t length) {
|
||||
char combined_str[3];
|
||||
validation_result_t validate = VALIDATION_SUCCESS;
|
||||
|
||||
static char cmd_buffer[BUF_SIZE][MAX_SERIAL_CMD_SIZE];
|
||||
static char serial_char = 0x00;
|
||||
validate = (validate_package_header(cmd) |
|
||||
validate_package_type(cmd) |
|
||||
validate_data_length(cmd) |
|
||||
validate_package_crc(cmd, length));
|
||||
|
||||
static int serial_count = 0;
|
||||
static char *strchr_pointer = NULL;
|
||||
|
||||
static packet_state_t packet_state = PS_LEN;
|
||||
|
||||
// bool code_seen(char code) {
|
||||
// // strchr_pointer = strchr(cmd_buffer[buf_index_r], code);
|
||||
// return (strchr_pointer != NULL); //Return True if a character was found
|
||||
// }
|
||||
|
||||
bool code_seen(char code) {
|
||||
strchr_pointer = NULL;
|
||||
for (int i = 0; cmd_buffer[buf_index_r][i] != '\0'; i++) {
|
||||
if (cmd_buffer[buf_index_r][i] == code) {
|
||||
strchr_pointer = &cmd_buffer[buf_index_r][i];
|
||||
switch (validate) {
|
||||
case VALIDATION_SUCCESS:
|
||||
// printf("%d", length);
|
||||
sprintf(combined_str, "%c%c", cmd[3], cmd[4]);
|
||||
if (strcmp(combined_str, "M1") == 0) {
|
||||
ultrasonic_distance_report();
|
||||
} else if (strcmp(combined_str, "M2") == 0) {
|
||||
gd60914_tempture_report();
|
||||
} else if (strcmp(combined_str, "M3") == 0)
|
||||
{
|
||||
printf("%c%c%c%c%c%c", 0xB5, 0xF1, 0x02, 0x6F, 0x6B, 0xCC);
|
||||
fwdgt_reset_mcu();
|
||||
} else {
|
||||
printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3C);
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case VALIDATION_CRC_ERROR:
|
||||
printf("%c%c%c%c%c%c%c", 0xB5, 0xF1, 0x03, 0x65, 0x72, 0x72, 0x3D);
|
||||
break;
|
||||
case VALIDATION_HEADER_ERROR:
|
||||
printf("%c%c%c%c%c%c%c", 0xB5, 0xF2, 0x03, 0x65, 0x72, 0x72, 0x3E);
|
||||
break;
|
||||
case VALIDATION_TYPE_ERROR:
|
||||
printf("%c%c%c%c%c%c%c", 0xB5, 0xF3, 0x03, 0x65, 0x72, 0x72, 0x3F);
|
||||
break;
|
||||
case VALIDATION_LENGTH_ERROR:
|
||||
printf("%c%c%c%c%c%c%c", 0xB5, 0xF4, 0x03, 0x65, 0x72, 0x72, 0x40);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
return (strchr_pointer != NULL); // Return True if a character was found
|
||||
}
|
||||
|
||||
float code_value(void) {
|
||||
return (strtod(&cmd_buffer[buf_index_r][strchr_pointer - cmd_buffer[buf_index_r] + 1], NULL));
|
||||
}
|
||||
|
||||
// void process_command(uint8_t *cmd, size_t length) {
|
||||
// char combined_str[3];
|
||||
// validation_result_t validate = VALIDATION_SUCCESS;
|
||||
//
|
||||
// validate = (validate_package_header(cmd) |
|
||||
// validate_package_type(cmd) |
|
||||
// validate_data_length(cmd) |
|
||||
// validate_package_crc(cmd, length));
|
||||
//
|
||||
// switch (validate) {
|
||||
// case VALIDATION_SUCCESS:
|
||||
// // printf("%d", length);
|
||||
// sprintf(combined_str, "%c%c", cmd[3], cmd[4]);
|
||||
// if (strcmp(combined_str, "M1") == 0) {
|
||||
// ultrasonic_distance_report();
|
||||
// } else if (strcmp(combined_str, "M2") == 0) {
|
||||
// gd60914_tempture_report();
|
||||
// } else if (strcmp(combined_str, "M3") == 0)
|
||||
// {
|
||||
// printf("%c%c%c%c%c%c", 0xB5, 0xF1, 0x02, 0x6F, 0x6B, 0xCC);
|
||||
// fwdgt_reset_mcu();
|
||||
// } else {
|
||||
// printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3C);
|
||||
// return;
|
||||
// }
|
||||
// break;
|
||||
// case VALIDATION_CRC_ERROR:
|
||||
// printf("%c%c%c%c%c%c%c", 0xB5, 0xF1, 0x03, 0x65, 0x72, 0x72, 0x3D);
|
||||
// break;
|
||||
// case VALIDATION_HEADER_ERROR:
|
||||
// printf("%c%c%c%c%c%c%c", 0xB5, 0xF2, 0x03, 0x65, 0x72, 0x72, 0x3E);
|
||||
// break;
|
||||
// case VALIDATION_TYPE_ERROR:
|
||||
// printf("%c%c%c%c%c%c%c", 0xB5, 0xF3, 0x03, 0x65, 0x72, 0x72, 0x3F);
|
||||
// break;
|
||||
// case VALIDATION_LENGTH_ERROR:
|
||||
// printf("%c%c%c%c%c%c%c", 0xB5, 0xF4, 0x03, 0x65, 0x72, 0x72, 0x40);
|
||||
// break;
|
||||
// default:
|
||||
// break;
|
||||
// }
|
||||
// }
|
||||
|
||||
uint8_t calculate_crc(uint8_t data[], uint8_t data_length) {
|
||||
uint8_t crc = 0;
|
||||
|
||||
@@ -153,91 +121,3 @@ void ultrasonic_distance_report(void) {
|
||||
printf("%c%c", package_data[0], package_data[1]);
|
||||
printf("%c", calculate_crc(combined_data, 6));
|
||||
}
|
||||
|
||||
void start_communication(void) {
|
||||
if (buf_length < (BUF_SIZE - 1)) {
|
||||
get_command();
|
||||
}
|
||||
|
||||
if (buf_length) {
|
||||
printf("DONE!\r\n");
|
||||
prcess_command();
|
||||
buf_length--;
|
||||
buf_index_r = (buf_index_r + 1) % BUF_SIZE;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void get_command(void) {
|
||||
static uint8_t check_sum = 0;
|
||||
static uint8_t packet_len ;
|
||||
static uint8_t packet_type;
|
||||
packet_state = PS_NULL;
|
||||
serial_count = 0;
|
||||
serial_char=0;
|
||||
|
||||
if (uart_available() > 0)
|
||||
delay_ms(5);
|
||||
while (uart_available() > 0 && buf_length < BUF_SIZE) {
|
||||
delay_us(100);
|
||||
serial_char = uart_read();
|
||||
switch (packet_state) {
|
||||
case PS_NULL:
|
||||
if (serial_char == PACKET_START_BYTE) {
|
||||
packet_state = PS_TYPE;
|
||||
serial_count = 0;
|
||||
check_sum = 0;
|
||||
} else {
|
||||
serial_count = 0;
|
||||
}
|
||||
break;
|
||||
case PS_TYPE:
|
||||
packet_type = serial_char;
|
||||
check_sum += serial_char;
|
||||
packet_state = PS_LEN;
|
||||
break;
|
||||
case PS_LEN:
|
||||
check_sum += serial_char;
|
||||
packet_len = serial_char;
|
||||
packet_state = PS_PAYLOAD;
|
||||
break;
|
||||
case PS_PAYLOAD:
|
||||
check_sum += serial_char;
|
||||
cmd_buffer[buf_index_w][serial_count++] = serial_char;
|
||||
if (serial_count >= packet_len) {
|
||||
packet_state = PS_CRC;
|
||||
}
|
||||
break;
|
||||
case PS_CRC:
|
||||
packet_state = PS_NULL;
|
||||
if (!serial_count || check_sum != serial_char) {
|
||||
serial_count = 0;
|
||||
return;
|
||||
}
|
||||
cmd_buffer[buf_index_w][serial_count] = 0;
|
||||
buf_index_w = (buf_index_w + 1) % BUF_SIZE;
|
||||
buf_length++;
|
||||
serial_count = 0;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void prcess_command(void) {
|
||||
if (code_seen('M')) {
|
||||
switch ((int)code_value()) {
|
||||
case 1:
|
||||
// ultrasonic_distance_report();
|
||||
printf("M1");
|
||||
break;
|
||||
case 2:
|
||||
// gd60914_tempture_report();
|
||||
printf("M2");
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
26
src/usart.c
26
src/usart.c
@@ -26,10 +26,9 @@ void usart_config(void)
|
||||
usart_baudrate_set(USART_PHY, USART_PHY_BAUDRATE);
|
||||
usart_receive_config(USART_PHY, USART_RECEIVE_ENABLE);
|
||||
usart_transmit_config(USART_PHY, USART_TRANSMIT_ENABLE);
|
||||
|
||||
nvic_irq_enable(USART_PHY_IRQ, 0);
|
||||
usart_interrupt_enable(USART_PHY, USART_INT_RBNE);
|
||||
// usart_interrupt_enable(USART_PHY, USART_INT_IDLE);
|
||||
usart_interrupt_enable(USART_PHY, USART_INT_IDLE);
|
||||
usart_enable(USART_PHY);
|
||||
}
|
||||
|
||||
@@ -47,26 +46,3 @@ void rs485_config(void)
|
||||
|
||||
gpio_bit_write(RS485_EN_PORT, RS485_EN_PIN, SET); //auto dircetion control
|
||||
}
|
||||
|
||||
void store_char(unsigned char data, ring_buffer_t *rx_buf) {
|
||||
uint16_t i = (unsigned int)(rx_buf->head + 1) % RX_BUFFER_SIZE;
|
||||
|
||||
if (i != rx_buf->tail) {
|
||||
rx_buf->buffer[rx_buf->head] = data;
|
||||
rx_buf->head = i;
|
||||
}
|
||||
}
|
||||
|
||||
uint16_t uart_available(void) {
|
||||
return (unsigned int)(RX_BUFFER_SIZE + rx_buffer.head - rx_buffer.tail) % RX_BUFFER_SIZE;
|
||||
}
|
||||
|
||||
int uart_read(void) {
|
||||
if (rx_buffer.head == rx_buffer.tail) {
|
||||
return -1;
|
||||
} else {
|
||||
unsigned char c = rx_buffer.buffer[rx_buffer.tail];
|
||||
rx_buffer.tail = (unsigned int)(rx_buffer.tail + 1) % RX_BUFFER_SIZE;
|
||||
return c;
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user