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Output functional in simple app. Issue at high volume. Still uses sc_i2c.

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xross
2017-10-12 15:33:58 +01:00
parent d4775f0122
commit 332ec6fbcb
15 changed files with 222 additions and 183 deletions
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68
examples/app_xua_simple/src/app_xua_simple.xc
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@@ -1,8 +1,12 @@
/* A very simple example of a USB audio application (and as such is un-verified)
*
/* A very simple *example* of a USB audio application (and as such is un-verified for production)
*
* It uses the main blocks from the lib_xua
*
* - 2 in/ 2 out I2S only
* - No DFU
* - I2S only
*
*/
#include <xs1.h>
@@ -11,26 +15,21 @@
#include "xud_device.h"
#include "xua.h"
/* Ports - note the defines come from the xn file */
/* Port declarations. Note, the defines come from the xn file */
buffered out port:32 p_i2s_dac[] = {PORT_I2S_DAC0}; /* I2S Data-line(s) */
buffered out port:32 p_lrclk = PORT_I2S_LRCLK; /* I2S Bit-clock */
buffered out port:32 p_bclk = PORT_I2S_BCLK; /* I2S L/R-clock */
/* I2S ports - Data-line, bit-clock and L/R clock */
buffered out port:32 p_i2s_dac[] = {PORT_I2S_DAC0};
buffered out port:32 p_lrclk = PORT_I2S_LRCLK;
buffered out port:32 p_bclk = PORT_I2S_BCLK;
port p_mclk_in = PORT_MCLK_IN; /* Audio master clock input */
/* Audio master-clock port */
port p_mclk_in = PORT_MCLK_IN;
in port p_for_mclk_count = PORT_MCLK_COUNT; /* Extra port for counting master clock ticks */
/* Port for counting master clocks */
in port p_for_mclk_count = PORT_MCLK_COUNT;
/* Clock-blocks for master-clock and bit-clock */
clock clk_audio_bclk = on tile[0]: XS1_CLKBLK_4;
clock clk_audio_mclk = on tile[0]: XS1_CLKBLK_5;
/* Clock-block declarations */
clock clk_audio_bclk = on tile[0]: XS1_CLKBLK_4; /* Bit clock */
clock clk_audio_mclk = on tile[0]: XS1_CLKBLK_5; /* Master clock */
/* Endpoint type tables - informs XUD what the transfer types for each Endpoint in use and also
* if the endpoint wishes to be informed of USB bus resets
*/
* if the endpoint wishes to be informed of USB bus resets */
XUD_EpType epTypeTableOut[] = {XUD_EPTYPE_CTL | XUD_STATUS_ENABLE, XUD_EPTYPE_ISO};
XUD_EpType epTypeTableIn[] = {XUD_EPTYPE_CTL | XUD_STATUS_ENABLE, XUD_EPTYPE_ISO};
@@ -40,13 +39,18 @@ int main()
chan c_ep_out[2];
chan c_ep_in[2];
/* TODO handle this */
chan c_aud_ctl;
/* Channel for communicating SOF notifications from XUD to the Buffering cores */
chan c_sof;
/* Channel for audio data between buffering cores and audio IO core */
chan c_aud;
/* Channel for communcating control messages from EP0 to the rest of the device (via the buffering cores */
chan c_aud_ctl;
/* TODO handle this */
interface audManage_if i_audMan;
par
{
@@ -61,31 +65,13 @@ int main()
/* Note, since we are not using many features we pass in null for quite a few params.. */
on tile[1]: XUA_Endpoint0(c_ep_out[0], c_ep_in[0], c_aud_ctl, null, null, null, null);
/* Buffering cores - handles audio data to/from EP's and gives/gets data from the audio I/O core */
/* Buffering cores - handles audio data to/from EP's and gives/gets data to/from the audio I/O core */
/* Note, this spawns two cores */
on tile[1]: XUA_Buffer(c_ep_out[1], c_ep_in[1], c_sof, c_aud_ctl, p_for_mclk_count, c_aud);
#if 0
/* Audio I/o core i.e. I2S */
on tile[1]: audio(AUDIO_CHANNEL,
#if defined(SPDIF_TX) && (SPDIF_TX_TILE != AUDIO_IO_TILE)
c_spdif_tx,
#endif
#if defined(SPDIF_RX) || defined(ADAT_RX)
c_dig_rx,
#endif
c_aud_cfg, c_adc
#if (XUD_TILE != 0) && (AUDIO_IO_TILE == 0)
, dfuInterface
#endif
#if (NUM_PDM_MICS > 0)
, c_pdm_pcm
#endif
, i_audMan
);
#endif
}
/* IOHub core does most of the audio IO i.e. I2S (also serves as a hub for all audio) */
on tile[0]: XUA_AudioHub(c_aud, i_audMan);
}
return 0;
}