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Altera_Forum's avatar
Altera_Forum
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19 years ago

changing uart stop and start bit

Hey guys

If I want to change the start bit to '0' instead of '1'.

And if I want to change the 2 stop bits to 'ones' instead of 'zeroes'

how can this be done?

And is it posible to open the standard uart in SOPC and changed it and save it as a new component?

Best Regards

Imagine

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    originally posted by imagine@Mar 16 2006, 11:34 PM

    if i want to change the start bit to '0' instead of '1'.

    and if i want to change the 2 stop bits to 'ones' instead of 'zeroes'

    how can this be done?

    --- Quote End ---

    Hi imagine,

    Why do this? If the start bit were '1' (ie. Mark), then the receiver would be unable to sense a Mark-to-Space transition, identifying the start of the word. How would the sender and receiver clocks be synchronized? Can you give more explanation?
  • Altera_Forum's avatar
    Altera_Forum
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    Hey

    Just wanted to use the transmitter, so don't worry about the reciever :-).

    I have found another way, thanx.

    / Imagine