|
|
@@ -1,61 +0,0 @@
|
|
|
--- LuaTools需要PROJECT和VERSION这两个信息
|
|
|
-PROJECT = "uart_timeout"
|
|
|
-VERSION = "1.0.0"
|
|
|
-
|
|
|
-log.info("main", PROJECT, VERSION)
|
|
|
-
|
|
|
--- 引入必要的库文件(lua编写), 内部库不需要require
|
|
|
-local sys = require "sys"
|
|
|
-
|
|
|
-if wdt then
|
|
|
- --添加硬狗防止程序卡死，在支持的设备上启用这个功能
|
|
|
- wdt.init(15000)--初始化watchdog设置为15s
|
|
|
- sys.timerLoopStart(wdt.feed, 10000)--10s喂一次狗
|
|
|
-end
|
|
|
-
|
|
|
-log.info("main", "uart timeout demo")
|
|
|
-
|
|
|
--- 串口ID,串口读缓冲区
|
|
|
-local UART_ID, sendQueue = 1, {}
|
|
|
--- 串口超时，串口准备好后发布的消息
|
|
|
---例子是100ms，按需求改
|
|
|
-local uartimeout, recvReady = 100, "UART_RECV_ID"
|
|
|
---初始化
|
|
|
-local result = uart.setup(
|
|
|
- UART_ID,--串口id
|
|
|
- 115200,--波特率
|
|
|
- 8,--数据位
|
|
|
- 1--停止位
|
|
|
-)
|
|
|
-uart.on(UART_ID, "receive", function(uid, length)
|
|
|
- local s
|
|
|
- while true do--保证读完不能丢包
|
|
|
- s = uart.read(uid, length)
|
|
|
- if #s == 0 then break end
|
|
|
- table.insert(sendQueue, s)
|
|
|
- end
|
|
|
- sys.timerStart(sys.publish, uartimeout, recvReady)
|
|
|
-end)
|
|
|
-
|
|
|
--- 向串口发送收到的字符串
|
|
|
-sys.subscribe(recvReady, function()
|
|
|
- --拼接所有收到的数据
|
|
|
- local str = table.concat(sendQueue)
|
|
|
- -- 串口的数据读完后清空缓冲区
|
|
|
- sendQueue = {}
|
|
|
- --注意打印会影响运行速度，调试完注释掉
|
|
|
- log.info("uartTask.read length", #str, str:sub(1,100))
|
|
|
-
|
|
|
- --在这里处理接收到的数据，这是例子
|
|
|
- if str:find("12345678901234567890") == 1 then --如果满足开头
|
|
|
- uart.write(UART_ID,"1234567890x2 lol") --回复
|
|
|
- else
|
|
|
- uart.write(UART_ID,"not match "..str) --回复
|
|
|
- end
|
|
|
-end)
|
|
|
-
|
|
|
-
|
|
|
--- 用户代码已结束---------------------------------------------
|
|
|
--- 结尾总是这一句
|
|
|
-sys.run()
|
|
|
--- sys.run()之后后面不要加任何语句!!!!!
|
chenxuuu