Hi ,
I am currently working with audio configuration on Beagle Board XM Rev B for ThreadX RTOS. The beagle board xm has TPS65950 <http://www.ti.com/product/TPS65950> as the audio codec, which is connected to the core through McBSP 2. - I have written Mcbsp driver and it works fine in loopback mode. - I have written I2C controller driver to configure the TPS65950<http://www.ti.com/product/TPS65950>audio codec, I verified the I2C driver by writing data to a particular offset on the Audio Codec and read it back and it gave the proper data that was written. Now the problem is, i configured the audio codec as per the programming guide on data manual of TPS 65950 for a play back scenario but i am able to hear only the POP noise that occurs when the audio chip is initialized and then i don't hear any sound at all on my headset. Following is the Mcbsp register dump and the Audio register dump ****************************************************************************** "MCBSP Registers" PCR = 0x0 SPCR2 = 0x30 SPCR1 = 0x0 RCR2 = 0x0 RCR1 = 0x0 XCR2 = 0x1 XCR1 = 0x40 SRGR2 = 0x2000 SRGR1 = 0x1 MCR2 = 0x203 MCR1 = 0x0 RCERA = 0x0 RCERB = 0x0 XCERA = 0x1 XCERB = 0x0 RCERC = 0x0 RCERD = 0x0 XCERC = 0x0 XCERD = 0x0 RCERE = 0x0 RCERF = 0x0 XCERE = 0x0 XCERF = 0x0 RCERG = 0x0 RCERH = 0x0 XCERG = 0x0 XCERH = 0x0 REV = 0x23 RINTCLR = 0x0 ROVFLCLR = 0x0 SYSCONFIG = 0x0 THRS2 = 0x1 THRS1 = 0x0 IRQ STATUS = 0x0 IRQ ENABLE = 0x0 WAKEUPEN = 0x0 XCCR = 0x1800 RCCR = 0x808 XBUFF = 0x500 RBUFF = 0x0 *************************************************************************** "Audio Registers" RX PATH SEL = 0xa APPL CTL = 0x10 AVDAC CTL = 0x3 ARXL1 APGA CTL = 0x33 ARXR1 APGA CTL = 0x33 SOFTVOL CTL = 0x1 CODEC MODE = 0x2 HS SEL = 0x72 ARXL1PGA = 0xbf ARXR1PGA = 0xbf ARXL1 APGA CTL = 0x33 ARXR1 APGA CTL = 0x33 HS GAIN SET = 0x5 ANAMICL = 0x0 MISC SET = 0x2 HS GAIN SET = 0xf HS POPN SET = 0x6 Option = 0xc3 ********************************************************************************* Also please let me know if there is any way with which i can verify whether data is actually flowing through the MCBsp and reaching the Audio Codec. Regards Haran -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
