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Working on getting DSD operational

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This commit is contained in:
Ross Owen
2013-05-15 12:45:46 +01:00
parent 6774e4fe0d
commit db10432674
1 changed files with 16 additions and 32 deletions
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48
module_usb_audio/audio.xc
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@@ -52,7 +52,7 @@ extern in port p_bclk;
unsigned dsdMode = 0; unsigned dsdMode = 0;
#ifdef DSD_OUTPUT #ifdef DSD_OUTPUT
#define p_dsd_clk p_i2s_dac[1] #define p_dsd_clk p_bclk
#define p_dsd_left p_i2s_dac[0] #define p_dsd_left p_i2s_dac[0]
#define p_dsd_right p_lrclk #define p_dsd_right p_lrclk
#define DSD_MARKER_1 0xFA #define DSD_MARKER_1 0xFA
@@ -353,8 +353,7 @@ unsigned deliver(chanend c_out, chanend ?c_spd_out, unsigned divide, chanend ?c_
#endif #endif
tmp = 0; tmp = 0;
#ifdef DSD_OUTPUT #if defined(DSD_OUTPUT) && (NUM_USB_CHAN_OUT > 0)
#error
if(dsdMode) if(dsdMode)
{ {
//while(1) //while(1)
@@ -369,26 +368,19 @@ unsigned deliver(chanend c_out, chanend ?c_spd_out, unsigned divide, chanend ?c_
switch (divide*4) switch (divide*4)
{ {
case 8: case 8:
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
break; break;
case 4: case 4:
p_bclk <: 0xCCCCCCCC; p_dsd_clk <: 0xCCCCCCCC;
p_bclk <: 0xCCCCCCCC; p_dsd_clk <: 0xCCCCCCCC;
//p_bclk <: 0xCCCCCCCC;
//p_bclk <: 0xCCCCCCCC;
break; break;
case 2: case 2:
//p_bclk <: 0xAAAAAAAA; p_dsd_clk <: 0xAAAAAAAA;
p_bclk <: 0xAAAAAAAA;
break; break;
case 1: case 1:
break; break;
@@ -407,26 +399,19 @@ unsigned deliver(chanend c_out, chanend ?c_spd_out, unsigned divide, chanend ?c_
switch (divide*4) switch (divide*4)
{ {
case 8: case 8:
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
p_bclk <: 0xF0F0F0F0; p_dsd_clk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
//p_bclk <: 0xF0F0F0F0;
break; break;
case 4: case 4:
p_bclk <: 0xCCCCCCCC; p_dsd_clk <: 0xCCCCCCCC;
p_bclk <: 0xCCCCCCCC; p_dsd_clk <: 0xCCCCCCCC;
//p_bclk <: 0xCCCCCCCC;
//p_bclk <: 0xCCCCCCCC;
break; break;
case 2: case 2:
//p_bclk <: 0xAAAAAAAA; p_dsd_clk <: 0xAAAAAAAA;
p_bclk <: 0xAAAAAAAA;
break; break;
case 1: case 1:
break; break;
@@ -605,7 +590,6 @@ unsigned deliver(chanend c_out, chanend ?c_spd_out, unsigned divide, chanend ?c_
} // !dsdMode } // !dsdMode
#if defined (DSD_OUTPUT) && (NUM_USB_CHAN_OUT > 0) #if defined (DSD_OUTPUT) && (NUM_USB_CHAN_OUT > 0)
#error
/* Check for DSD */ /* Check for DSD */
/* Currently we only check on channel 0 - we get all 0's on channels without data */ /* Currently we only check on channel 0 - we get all 0's on channels without data */