Intra-frame sample delay (ADC/TDM)

CHANGELOG.rst

@@ -1,6 +1,10 @@
 sc_usb_audio Change Log
 =======================
 
+6.20.0
+------
+    - RESOLVED:   Intra-frame sample delays of 1/2 samples on input streaming in TDM mode 
+
 6.19.0
 ------
     - CHANGE:     BCD_DEVICE version increment only

module_usb_audio/audio_io/audio_io.xc

@@ -598,7 +598,7 @@ unsigned static deliver(chanend c_out, chanend ?c_spd_out,
             /* Input previous L sample into L in buffer */
             index = 0;
             /* First input (i.e. frameCount == 0) we read last ADC channel of previous frame.. */
-            unsigned buffIndex = (frameCount < 3) ? !readBuffNo : readBuffNo;
+            unsigned buffIndex = (frameCount > 1) ? !readBuffNo : readBuffNo;
 
 #pragma loop unroll
             /* First time around we get channel 7 of TDM8 */