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audio buzz

Started by muraszkd2000 June 29, 2003
I've tried several of the audio examples included with CCS such as
the CODEC and AUDIO projects, but I always get a loud annoying buzz!
I tried various filters and this has only a slight effect. Does
anyone know what is causing the buzz?



I had a similar problem with my C5402 DSK and it turned out to be the power
supply. A 470uF capacitor directly across the 5V power in socket fixed the
problem.

Les > I've tried several of the audio examples included with CCS such as
> the CODEC and AUDIO projects, but I always get a loud annoying buzz!
> I tried various filters and this has only a slight effect. Does
> anyone know what is causing the buzz? >
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Dear,
I have a project to program G.723.1 source code to
Flash Memory on DSKC5402, then boot that program from
Flash Memory. The size of the boot table is 87e7h
(exceed 8000h), so i must used at least 2 extended
program memory spaces (flash memory is mapped here).
I've already used the secondary bootloader and using
Flashburn Utility to program the flash. The question
is, how to program the source code to that 2 extended
program memory spaces. Should i divide the sections
into 2 parts, how? And how to make the *.cmd file?
Down here is the list of the command file for making
the boot table that i used :

audio.out
-m1
-map audio-hex.map
-o audio.hex
-memwidth 16
-romwidth 16
-boot
-bootorg 0x8000
-e 0x8075
-swwsr 0x7fff
-bscr 0x8806

Any suggestion or help will be appreciated....thanks

temy

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