Created
February 20, 2014 15:30
-
-
Save ahappyforest/9116361 to your computer and use it in GitHub Desktop.
mushroom serial operation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
while (1) { | |
每次总是先发送命令, 再读取回应, 因此这里也是按照这个顺序: | |
把串口操作看作是一个command和一个response组成, command是一个结构体, 不但包含待发送的数据, 还包含对应的message_queue指针, 上层的请求首先会被排队, 然后这个线程从队列中取出一个command开始发送。 | |
0. 从队列中取出一个command | |
1. 发送command | |
2. 接收ack(这里严格按照超时来做, 因为有可能因为串口原因, 收不到ack) | |
3. 判断ack是否正确 | |
4. 通知上层来响应这个ack的行为(将数据打包成response, 发送给message_queue) | |
5. 继续回到步骤0 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment