Hi,
We used the C6747 starter kits, CCS v3.3, BIOS 5.33.05, PSP 1.30.01 and we were able to have our application playing audio wave files successfully. We moved to our actual hardware and having issues with the audio. My questions are:
1. The starter kits uses 24.576MHz external clock for MCLK. Our hardware use DSP AHCLKX1 for MCLK. We configured the registers as below. AHCLKX1 signal does not available all the time. What could be the the cause?
Mcasp_HwSetupData mcaspRcvSetup = { /* .rmask = */ 0xFFFFFFFF, /* All the data bits are to be used */ /* .rfmt = */ 0x000080F0, /* * 0 bit delay from framsync * MSB first * No extra bit padding * Padding bit (ignore) * slot Size is 32 * Reads from DMA port * NO rotation */ /* .afsrctl = */ 0x00000000, /* burst mode, * Frame sync is one bit * Rising edge is start of frame * externally generated frame sync */ /* .rtdm = */ 0x00000001, /* slot 1 is active (DSP) */ /* .rintctl = */ 0x00000003, /* sync error and overrun error */ /* .rstat = */ 0x000001FF, /* reset any existing status bits */ /* .revtctl = */ 0x00000000, /* DMA request is enabled or disabled */ { #ifdef EVM_FLAG /* .aclkrctl = */ 0x00000000, /* .ahclkrctl = */ 0x00000000, #else /* .aclkrctl = */ 0x00000023, /* .ahclkrctl = */ 0x00008046, #endif /* .rclkchk = */ 0x00000000 } };
Mcasp_HwSetupData mcaspXmtSetup = { /* .xmask = */ 0xFFFFFFFF, /* All the data bits are to be used */ /* .xfmt = */ 0x000080F0, /* * 0 bit delay from framsync * MSB first * No extra bit padding * Padding bit (ignore) * slot Size is 32 * Reads from DMA port * NO rotation */ /* .afsxctl = */ 0x00000000, /* burst mode, * Frame sync is one bit * Rising edge is start of frame * externally generated frame sync */ /* .xtdm = */ 0x00000001, /* slot 1 is active (DSP) */ /* .xintctl = */ 0x00000007, /* sync error,overrun error,clK error */ /* .xstat = */ 0x000001FF, /* reset any existing status bits */ /* .xevtctl = */ 0x00000000, /* DMA request is enabled or disabled */ { #ifdef EVM_FLAG /* .aclkxctl = */ 0x00000000, /* .ahclkxctl = */ 0x00000000, #else /* .aclkxctl = */ 0x00000023, /* .ahclkxctl = */ 0x00008046, #endif /* .xclkchk = */ 0x00000000 }, };
static void AUDD_GblCallback( int32_t arg_ );
// McBsp channel parameters Mcasp_ChanParams mcasp_chanparam[Audio_NUM_CHANS]= { { 0x0001, // number of serialisers {Mcasp_SerializerNum_0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }, &mcaspRcvSetup, TRUE, Mcasp_OpMode_TDM, // Mode (TDM/DIT) Mcasp_WordLength_32, NULL, 0, NULL, AUDD_GblCallback, 1, // number of TDM channels Mcasp_BufferFormat_1SER_1SLOT, TRUE, TRUE }, { 0x0001, // number of serialisers {Mcasp_SerializerNum_5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }, &mcaspXmtSetup, TRUE, Mcasp_OpMode_TDM, Mcasp_WordLength_32, // word width NULL, 0, NULL, AUDD_GblCallback, 1, // number of TDM channels Mcasp_BufferFormat_1SER_1SLOT, TRUE, TRUE } };
Audio_ChannelConfig audioChanParamsIN = { // channel 0 (RX) (Ptr)&mcasp_chanparam[0], { // codec [0] { 11025/*RESP_SAMPLING_RATE*/, // sampling rate for codec 70, // gain (%) for codec 0x00, 0x00 } } }; Audio_ChannelConfig audioChanParamsOUT = { // channel 1 (TX) (Ptr)&mcasp_chanparam[1], { // codec [1] { 11025/*AUDIO_SAMPLING_RATE*/, // sampling rate 70, // gain (%) for codec 0x00, 0x00 } } };
2. When AHCLKX1 signal available, our application got locked up in SIO_issue(). Please comment.
3. Our board has TLV320AIC3007 and the EVM has TLV320AIC3106. From the data sheet comparison, these 2 codecs provides the same functionalities to play audio wave files and sampling audio inputs. Any difference that we should pay attention on the TLV320AIC3007.
4. Please point us to the information of configuring the codec speaker amp.
Thanks
