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mic buffering now uses select

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This commit is contained in:
Ross Owen
2016-04-19 15:47:15 +01:00
parent 8a26f42a85
commit 89c3854707
1 changed files with 22 additions and 18 deletions
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24
module_usb_audio/pdm_mics/pcm_pdm_mic.xc
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@@ -71,26 +71,22 @@ void pdm_process(streaming chanend c_ds_output[2], chanend c_audio
#else #else
user_pdm_process(current, output); user_pdm_process(current, output);
#endif #endif
int loop =1;
while(1) while(loop)
{ {
unsafe unsafe
{ {
int req; int req;
c_audio :> req; select
{
case c_audio :> req:
if(req) if(req)
{ {
for(int i = 0; i < NUM_PDM_MICS; i++) for(int i = 0; i < NUM_PDM_MICS; i++)
{ {
c_audio <: output[i]; c_audio <: output[i];
} }
}
else
{
break;
}
mic_array_frame_time_domain * unsafe current = mic_array_get_next_time_domain_frame(c_ds_output, 2, buffer, mic_audio, dc); mic_array_frame_time_domain * unsafe current = mic_array_get_next_time_domain_frame(c_ds_output, 2, buffer, mic_audio, dc);
@@ -100,7 +96,15 @@ void pdm_process(streaming chanend c_ds_output[2], chanend c_audio
#else #else
user_pdm_process(current, output); user_pdm_process(current, output);
#endif #endif
}
else
{
loop = 0;
continue;
break;
}
break;
}
} }
} }
} }