Customer question:
We found a problem in the TPS65950 bluetooth module (PCM BT), when we try to transmit from OMAP to DUT module.
Issue description:
Schema used:
OMAP3530 [McBSP3] -> TPS65950 [PCM VSP] -> TPS65950 [PCM BT] -> BT
-> BT [CLK, FSX]
We configure the OMAP3530 for master clock using McBSP3 that it's directly connected to PCM VSP module.
TPS65950 PCM BT it's attached to DUT bluetooth chipset, the lines VCK and VFS be shared between BT and VSP as be described int the schema.
The TPS65950 it's configured as Mode 2 VOICE + AUDIO and set all parameters (attached a example init configuration) in order to TPS65950 manual.
Test Case:
We can attach the device to DUT and we can receive the digital audio from the mobile phone and the audio from BT it's received correctly in the OMAP processor but the problem we found when we try to transmit from OMAP to the phone, we already check the McBSP transmission signal it's OK but the signal it's not routed from TPS65950 to DUT (we don't see any signal in BT.PCM.VDX).
We tested more configuration settings but with the same result ...
Any information could be appreciated ...
Answer: TI checked all register settings, all clocks, voice interface and PCMBT registers were configured correctly. Customer did not configure PMBR1 register for BT setup (bits 7:6). Once this setup was done the communication was as expected.