Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
02/08/06 17:56
Read: times


 
#109540 - Bad 16550s
Responding to: ???'s previous message
Jan Waclawek said:
Sasha: this was very nice, could be made a FAQ.

Thank you.

Sasha Jevtic said:
think: 16550 and friends, although not the ones with the broken FIFO

Can you be more specific, please?

Jan Waclawek

Unfortunately (or perhaps fortunately), I haven't had any experience with this issue myself. I remember quite a bit of commotion some years ago when early versions 16550 UARTs had serious FIFO errata. A quick search didn't turn up any old errata sheets, but I did see a few references to the problem, including one from Microsoft claiming difficulties with the 16550AF:

http://www.beyondlogic.org/serial/serial.htm#9
http://support.microsoft.com/kb/q103108/

Perhaps some of the more senior members of the forum have had experiences with this and/or have some errata sheets squirreled away that they could share.

--Sasha Jevtic

List of 17 messages in thread
TopicAuthorDate
XON/XOFF control            01/01/70 00:00      
   what do you need to know?            01/01/70 00:00      
   XON/XOFF control            01/01/70 00:00      
   What's the problem            01/01/70 00:00      
      Buffer overflow            01/01/70 00:00      
   Standard Keil implementation!            01/01/70 00:00      
   Software flow control in depth            01/01/70 00:00      
      nice!            01/01/70 00:00      
         Bad 16550s            01/01/70 00:00      
            re: Bad 16550s            01/01/70 00:00      
      XOFF Clarification            01/01/70 00:00      
         Software flow control in hardware            01/01/70 00:00      
            Neat            01/01/70 00:00      
               Opposite of SMS?            01/01/70 00:00      
         Pesky hardware FIFOs            01/01/70 00:00      
            Bad 16550's and Control            01/01/70 00:00      
   then join me and score it            01/01/70 00:00      

Back to Subject List