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## 一.引言 | |
### 1. 编写目的(阐明编写详细设计说明书的目的,指明读者对象。) | |
### 2. 项目背景(应包括项目的来源和主管部门等。) | |
### 3. 定义(列出文档中用到的专门术语定义和缩写词的原意。) | |
### 4. 参考资料(列出这些资料的作者、标题、编号、发表日期、出版单位或资料来源,可包括:(1)项目的计划任务书,合同或批文;(2)项目开发计划;(3)需求规格说明书;(3)概要设计说明书;(4)测试计划(初稿);(5)用户操作手册(初稿);(5)文档所引用的其他资料、软件开发标准或规范。) | |
## 二.总体设计 | |
### 1.需求概述 |
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module DebugTransportModuleJtag ( | |
//JTAG Interface | |
jtag_TDI, | |
jtag_TDO, | |
jtag_TCK, | |
jtag_TMS, | |
jtag_TRST, | |
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#!/bin/sh /etc/rc.common | |
START=95 | |
start() { | |
# shadowsocks rules | |
iptables -t nat -N SHADOWSOCKS | |
# START |
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function print_r2(data, depth) | |
local depth = depth or 3 | |
local cstring = ""; | |
local top_flag = true | |
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function print_r(data) | |
local cstring = ""; | |
local function table_len(t) | |
local i = 0 | |
for k, v in pairs(t) do | |
i = i + 1 | |
end | |
return i |
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在tinyos中, call command和signal event只是异步的基础设施, 当call command以及signal event时, 事实上该command和event是被同步调用的。 真正的异步是通过中断做的。 | |
在tinyos中存在两条线, 一条是同步, 一条是异步, 中断和同步代码的通信是通过task进行的。 | |
在中断中, 你可以直接signal async event, 但是如果对实时性没有要求, 可以在中断中用task。 |
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https://g.xfg.io/search?newwindow=1&q=%s&gws_rd=ssl |
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int i; | |
for (i = 0;i < connection->msg.len * 2;i++) { | |
unsigned char c = (unsigned char *)connection->msg.data[(i & 0xf) | ((i & 0xffffffe0)>>1)]; | |
if ((i & 15) == 0) printf("\n"); | |
if ((i & 31) < 16) { | |
printf("%02x ", c); | |
} else { | |
if (c < 0x20) { | |
printf("."); | |
} else { |
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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) |
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message MessageHeader0x01 | |
{ | |
required int32 message_id = 1; | |
optional int32 session = 2; | |
optional HeaderPayLoad data; | |
message HeaderPayLoad { | |
required int32 birth_type; | |
required int32 fd; | |
} |
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