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工作学习 / IT技术讨论 / 我需要sdlc/hdlc这方面编程的简单介绍。有人能帮忙推荐一下阅读什么样的资料么？谢谢。如果是.net方面的就更好了。
-lilyba(正义的使者，邪恶的克);
2004-10-5
(#1917299@0)
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那是什么东东？
-henhen(亨亨, 找工C#@.NET);
2004-10-5
(#1917307@0)
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我只知道这是有关通讯的。别的就不知道了。：（
-lilyba(正义的使者，邪恶的克);
2004-10-5
(#1917310@0)
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应该是一种老掉牙的异步通讯协议吧google 上去搜一把
-guoluworker(锅炉工);
2004-10-5
{17}
(#1917324@0)
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谢谢。我正在查，就是看不懂。请问你是做通讯这方面的编程么？
-lilyba(正义的使者，邪恶的克);
2004-10-5
(#1917332@0)
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实现HDLC/SDLC最多的是用motolora 的QUICC和POWERQUICC处理器。这是一个链路层协议，很简单，由底层微吗(microcode)完成，应用程序看不到的。应用程序和电脑上的串口编程类似，不同的是RS232是以字节为单位传输，XHLC有帧(或称包)结构，变长的。所以开好数据缓冲区，设置波特率等，设置中断，发一个开始命令给微码，你就等中断吧。
-remember_me_not(老兄);
2004-10-6
{106}
(#1917821@0)
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也可以用查询方式，数据量比较大，用中断会消耗太多CPU在现场保护上。
-pleased(please);
2004-10-7
(#1919171@0)
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当然，取决于frame/package是大而整还是小而碎
-remember_me_not(老兄);
2004-10-7
(#1919199@0)
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另外，我用FPGA也实现了HDLC。
-pleased(please);
2004-10-7
(#1919172@0)
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我这里绝大多数板子都用quicc/powerquicc,那个SCC不用白不用。没有quicc的板子，就用MT8952， $2/64Kbps,如果算上你的工资，肯定比FPGA方案便宜 ：-)
-remember_me_not(老兄);
2004-10-7
(#1919201@0)
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You must calculate the amount of the product.My salary was ver low.
FPGA has other usage in that board.
-pleased(please);
2004-10-7
{61}
(#1920162@0)
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SCC. It is a sound that I was so familar. After so many years, I just sudden found that I have forgotten so many old friends.
-pleased(please);
2004-10-7
(#1920165@0)
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find microsoft SNA gateway, u should be able to have bunch of DLLs, document if u r lucky.
-mssg(_);
2004-10-5
(#1917344@0)
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start from here ==>
-mssg(_);
2004-10-5
(#1917349@0)
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谢谢，好同志。:)
-lilyba(sunshine 毁灭者);
2004-10-5
(#1917359@0)
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why you want to use host integration server? do you want to access data on mainframe?
-ningxin0809(雁影行洲);
2004-10-6
(#1917835@0)
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如果是这样的话，现在的产品和技术都已经很成熟了。
-scottee(笑熬浆糊);
2004-10-6
(#1917838@0)
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晕。不知是沥沥把昏昏，还是米嘻嘻哥昭昭。大家在说什么？
-remember_me_not(老兄);
2004-10-6
(#1917853@0)
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I guess IBM use SDLC in their SNA network.
-pleased(please);
2004-10-7
(#1920163@0)
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they are on the Data Link Layer deal with data frame, they are all sync protocol.Yes, SNA is on SDLC, HDLC was from SDLC. on the top of those two protocols, there could be many other Network layer, or transportation layer protocols(APPC LU6.2, TCP/IP).
Usually, it should be you to do any programming on this layer (except ur company is producing some SNA comm product or You are an IBMer (not likely)).
on APPC LU6.2 there are some API u can use to perform data comm like (ICF, CPI etc.)
-elac(elac);
2004-10-8
{413}
(#1921222@0)