C51单片机开发环境
0 OS环境
1 IDE
下载Clion
2 嵌入式插件
安装pio插件
3 嵌入式
-
我使用的是HomeBrew进行管理
brew update brew install platformio -
验证
pio --version
4 IDE编译
4.1配置ToolChains
除了默认，我额外配置了2个，都是用的gcc编译器，但是调试器不一样
4.1.1 Default
4.1.2 GCC
4.1.3 ARM-Linux
4.2 配置CMake
根据需要选择配置的ToolChain，我优先使用的是ARM-Linux
4.2.1 Default
4.2.2 Debug-ARM-Linux
5 烧录
5.1 安装对应的USB驱动
-
比如安装CH340驱动，根据系统选择自己需要的版本进行安装
-
安装好驱动后，将板子连接PC进行验证
pio device list
5.2 stcgal
-
这个是python项目的一个package，需要前置安装好py3
pip3 install stcgal -
验证
stcgal --version
6 项目流程
6.1 新建项目
选择自己适配的板子型号，没有需要的板子就按照单片机型号进行选择
6.2 添加单片机头文件
pio集成的环境使用的是sdcc编译，提供了开发的头文件，需要加到CMakeLists中让IDE识别到
include_directories("$ENV{HOME}/.platformio/packages/toolchain-sdcc/share/sdcc/include")
6.3 修改platformio.ini
我使用的默认的upload烧录不成功，应该是我电脑上有多个py版本导致pip管理的stcgal有错乱，手动指定烧录命令
upload_port = /dev/cu.wchusbserial14340
upload_protocol = stcgal
upload_flags =
-P
stc89
-p$UPLOAD_PORT
upload_command = stcgal $UPLOAD_FLAGS ./.pio/build/STC89C52RC/firmware.hex
6.4 IDE头文件路径飘红问题
在8051.h和8052.h头文件中#include "lint.h"
6.5 语法问题
大部分教材文档都是基于windows+keil的，mac+sdcc的语法跟其有些不同
| sdcc | keil | |
|---|---|---|
| 头文件 | 8052.h/8051.h | reg52.h/reg51.h |
| 端口控制口定义 | #define LED1 P2_0 | sbit LED1 = P2 ^ 0; |
| 中断声明 | void time1() __interrupt 3 __using 2 | void time1() interrupt 3 using 2 |
6.6 烧录
6.6.0 打开开关，给板子供电
6.6.1 在Upload的前置加上Build，这样每次改完代码直接点击Upload就行
6.6.2 烧录是根据终端提示进行断电/供电操作
出现Waiting for MCU, please cycle power: done提示时手动进行一次断电/上电动作
完整执行日志如下
/usr/local/Cellar/platformio/6.1.5_1/bin/platformio -c clion run --target upload -e STC89C52RC
Processing STC89C52RC (platform: intel_mcs51; board: STC89C52RC)
--------------------------------------------------------------------------------
Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/intel_mcs51/STC89C52RC.html
PLATFORM: Intel MCS-51 (8051) (2.1.0) > Generic STC89C52RC
HARDWARE: STC89C52RC 11MHz, 512B RAM, 8KB Flash
PACKAGES:
- tool-stcgal @ 1.106.0 (1.6)
- tool-vnproch55x @ 1.0.220407
- toolchain-sdcc @ 1.40200.0 (4.2.0)
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 0 compatible libraries
Scanning dependencies...
No dependencies
Building in release mode
Checking size .pio/build/STC89C52RC/firmware.hex
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
Flash: [= ] 7.6% (used 626 bytes from 8192 bytes)
Configuring upload protocol...
AVAILABLE: stcgal
CURRENT: upload_protocol = stcgal
Looking for upload port...
Using manually specified: /dev/cu.wchusbserial14340
Uploading .pio/build/STC89C52RC/firmware.hex
Waiting for MCU, please cycle power: done
Target model:
Name: STC89C52RC/LE52R
Magic: F002
Code flash: 8.0 KB
EEPROM flash: 6.0 KB
Target frequency: 11.030 MHz
Target BSL version: 6.6C
Target options:
cpu_6t_enabled=False
bsl_pindetect_enabled=False
eeprom_erase_enabled=False
clock_gain=high
ale_enabled=True
xram_enabled=True
watchdog_por_enabled=False
Loading flash: 626 bytes (Intel HEX)
Switching to 19200 baud: checking setting testing done
Erasing 4 blocks: done
Writing flash: 0%| | 0/1024 [00:00<?, ? Bytes/s]
Writing flash: 25%|██▌ | 256/1024 [00:00<00:00, 2110.54 Bytes/s]
Writing flash: 50%|█████ | 512/1024 [00:00<00:00, 1328.97 Bytes/s]
Writing flash: 75%|███████▌ | 768/1024 [00:00<00:00, 1274.83 Bytes/s]
Writing flash: 100%|██████████| 1024/1024 [00:00<00:00, 1315.79 Bytes/s]
Writing flash: 1152 Bytes [00:00, 1515.85 Bytes/s]
Setting options: done
Disconnected!
========================= [SUCCESS] Took 7.21 seconds =========================
Process finished with exit code 0