Kevin Weddle Posted July 30, 2005 Report Share Posted July 30, 2005 I am curious when it comes to digital communication errors. We know that that there are error detection schemes in use to help catch these errors. We also know that these errors occur in products that have been fully tested and have no hardware problems. One question I have is why are these errors occuring. Is it marginal design? Is it a timing problem within the program? Could it be that the construction of the microcontroller lacks some integrity because they utilize so many circuits? How often do these errors really occur in the field such that the data is retransmitted again without anybody being the wiser. Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 30, 2005 Report Share Posted July 30, 2005 Hi Kevin,I worked with large telephone systems that had many distributed microcontrollers. Interrupts were occuring all over the place and the main microprocessor continued functioning quickly in an orderly fashion.If a complicated circuit has a single microcontroller or microprocessor doing everything then either it will slow to a crawl or miss important things.Dialup modem communication is a different animal. It tries to communicate at 56k (a joke unless your ISP is next door) then falls back to 44k, 33k etc. It will finally settle on a data rate that doesn't have too many errors that require re-transmission. ;D Quote Link to comment Share on other sites More sharing options...
prateeksikka Posted August 8, 2005 Report Share Posted August 8, 2005 hi audioguru!nowadays we have error correcting algorithms too.but regarding digital communication can u tell me what is bandwidth(in digital context) Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.