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Discussion Groups | TMS320C54x | Sampling 16bits with dsk baord !!
Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).
Sampling 16bits with dsk baord !! - Ben-Yair, Yossi - Nov 23 12:45:00 2001
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Does anyoune know how to confugure / initialize the codec TLC320AD50c on the dsk baord to sample at 16 bits ( not 15bits ) . |
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Re: Sampling 16bits with dsk baord !! - Jeff Brower - Nov 25 2:58:00 2001
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Yossi Ben-Yair- >Does anyoune know how to confugure / initialize the codec TLC320AD50c on the >dsk baord to sample at 16 bits ( not 15bits ) . The TLC320AD50 part does sample at 16 bits. What is happening that causes you to say it is not? Jeff Brower DSP sw/hw engineer Signalogic |
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RE: Sampling 16bits with dsk baord !! - Jeff Brower - Nov 26 0:56:00 2001
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Ben-Yair Yossi- >The TLC320AD50 does sample at 16bits , but 15bits are the original data >and the 16th bit is a control bit for the codec. >configuring the codec to 15 bits was fine , I got all the data to my >interrupt routine. >when i tried to configue the codec to sample 16bits I could not get the >interrupts !!! In 16-bit mode, you have to use the hardware FC bit (controlled by the CPLD on the DSK C5402 board) to request secondary communications, and thus correctly (and completely) configure the AD50. Did you do that? Not too long ago I posted on this group an asm. language source code example for configuring the AD50 on the C5402. This shows how to use the FC line for 16-bit configuration. It should be in the archives; I think around early October. Jeff Brower DSP sw/hw engineer Signalogic >-----Original Message----- >From: Jeff Brower [mailto:] >Sent: Saturday, November 24, 2001 9:59 PM >To: Yossi Ben-Yair >Cc: >Subject: Re: [c54x] Sampling 16bits with dsk baord !! >Yossi Ben-Yair- > >>Does anyoune know how to confugure / initialize the codec TLC320AD50c on >the >>dsk baord to sample at 16 bits ( not 15bits ) . > >The TLC320AD50 part does sample at 16 bits. What is happening that causes >you >to say it is not? > >Jeff Brower >DSP sw/hw engineer >Signalogic |
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