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Hi to all. I am currently daisy chaining AD1819A on the serial ports of a ADSP-21065L SHARC. I am having a problem with the master AD1819A codec on SPORT0, and doesn't know what really happens. I just found out that the AD1819A sends out the codec ready bit it is supposed to send to the DSP upon power up, so there is no problem with the AD1819A codec. However, when the code reaches the loop wherein it waits for this codec ready bit, the but disappears. i found out that the codec ready bits disappears when I initialized the serial port control registers of SPORT0. I am accessing the DSP through a JTAG, and I don't know if there are problems with the serial port I am using. Does the DSP kernel of the EZKIT Lite use the SPORT0 that it must not be used? I am assuming here that SPORT1 and SPORT0 are identical if not similar, such that initialization codes for them will be the same, if it is for the same purpose. Try it if you want, when the AD1819A is connected to SPORT0, instead of SPORT1, the codec won't work and won't pass through because the codec ready bit disappears. I am also having problems with the slave codecs, they doesn't seem to respond, though I know that the ADSP 21065L sends out the appropriate data. Thanks for your time. Jaeson |
AD1819 on SPORT0
Started by ●February 27, 2002
