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hello i am working on codec TL320AD50c on TMS320VC5402 DSP kit. i have to send data to the codec. should i use DXR or DRR register of McBSP In my program i have used DXR register to output the sample. i am getting the data in the DXR reg. when i tried to call the input_sample function(as shown below) i am not getting any value in the DRR reg.i want to know whether i am using correct reg to send data to the codec. pls help me out its very urgent. the part of the pgm is below int input_sample() { return(*(volatile u16*)DRR1_ADDR(HANDSET_CODEC)); } void output_sample(int data) { *(volatile u16*)DXR1_ADDR(HANDSET_CODEC) = data; *(volatile u16*)DXR1_ADDR(DAA_CODEC) = data; } thanks sahana |
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using McBSP for TI Codecs
Started by ●June 19, 2002
Reply by ●June 19, 20022002-06-19
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DXR - Data Transmit Register. DRR - Data Receive Register. From the definitions alone - you should use the DXR. You'll get the data in the DRR register from CODEC - if you have initialized it correctly and provided there is some signal on line. (What values are you getting right now ?) You can write a simple code which takes the sample from line - gives it to McBSP DXR - you rewrite the sample to DRR - which gives it to CODEC. This simple loopback will go a long way in debugging. You will be having some sample codes also - if not contact your vendor - they provide these codes in most of the cases. Hope this helps. Sachin hello i am working on codec TL320AD50c on TMS320VC5402 DSP kit. i have to send data to the codec. should i use DXR or DRR register of McBSP In my program i have used DXR register to output the sample. i am getting the data in the DXR reg. when i tried to call the input_sample function(as shown below) i am not getting any value in the DRR reg.i want to know whether i am using correct reg to send data to the codec. pls help me out its very urgent. the part of the pgm is below int input_sample() { return(*(volatile u16*)DRR1_ADDR(HANDSET_CODEC)); } void output_sample(int data) { *(volatile u16*)DXR1_ADDR(HANDSET_CODEC) = data; *(volatile u16*)DXR1_ADDR(DAA_CODEC) = data; } thanks sahana _____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: Send an email to To Post: Send an email to To Leave: Send an email to Archives: http://www.yahoogroups.com/group/c54x Other Groups: http://www.dsprelated.com ">http://docs.yahoo.com/info/terms/ |
