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Re: uart display


Does the UART peripheral have a FIFO?

Yes or no, may be you are overwriting chars in the FIFO or the UART_RX register before they get sent.

If you feel so, just to corroborate this, try adding a dumb delay (a for loop for 100000 times) between each char written into the FIFO or UART_TX reg.

Cheers,
-Mike.


From: Satish Kumar <satish@bvt.sc.sanyo.co.jp>
To: ecos-discuss@sources.redhat.com
Subject: [ECOS] uart display
Date: Fri, 25 Jul 2003 12:47:03 +0900

Hi,
    i m trying to debug the arm926e-js system board with my redboot.bin
file and i see many missing characters on my hyperterminal: can somebody
explain this problem:

expected output is:

RedBoot(tm) bootstrap and debug environment [ROM]
Non-certified release, version UNKNOWN - built 12:36, July 25 2003
and so on.............

but i get this:
omtpd ot]ni se  l:, 0CoiC000RtcRA0000400004x040alRB

so, where could be the problem..i have developed an interrupt driven
serial driver.

thanks,
satish


-- Satish Kumar <satish@bvt.sc.sanyo.co.jp>


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