* Renamed test_sync to test_sync_clk_basic

* Authored test for known issue in sync mode, test_sync_clk_plugin
* Removed some unrequired test related files

tests/test_sync_clk_plugin/Makefile

@@ -0,0 +1,3 @@
+TEST_FLAGS = -DMISSING_SOFS=4
+
+include ../test_sync_clk_basic/Makefile

tests/test_sync_clk_plugin/src/main.xc

@@ -0,0 +1,2 @@
+
+#include "../test_sync_clk_basic/src/main.xc"

tests/test_sync_clk_plugin/src/test_xs3_600.xn

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Network xmlns="http://www.xmos.com"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://www.xmos.com http://www.xmos.com">
+  <Declarations>
+    <Declaration>tileref tile[2]</Declaration>
+  </Declarations>
+
+  <Packages>
+    <Package id="0" Type="XS3-UnA-1024-FB265">
+      <Nodes>
+        <Node Id="0" InPackageId="0" Type="XS3-L16A-1024" Oscillator="24MHz" SystemFrequency="600MHz" ReferenceFrequency="100MHz">
+          <Tile Number="0" Reference="tile[0]"/>
+          <Tile Number="1" Reference="tile[1]"/>
+        </Node>
+      </Nodes>
+    </Package>
+  </Packages>
+
+  <JTAGChain>
+    <JTAGDevice NodeId="0"/>
+  </JTAGChain>
+
+</Network>

tests/test_sync_clk_plugin/src/xua_conf.h

@@ -0,0 +1,44 @@
+// Copyright 2016-2022 XMOS LIMITED.
+// This Software is subject to the terms of the XMOS Public Licence: Version 1.
+#ifndef _XUA_CONF_H_
+#define _XUA_CONF_H_
+
+#define NUM_USB_CHAN_OUT        (2)
+#define NUM_USB_CHAN_IN         (2)
+#define I2S_CHANS_DAC           (2)
+#define I2S_CHANS_ADC           (2)
+
+#define XUA_SYNCMODE           XUA_SYNCMODE_SYNC
+#define UAC_FORCE_FEEDBACK_EP   (0) 
+
+#define EXCLUDE_USB_AUDIO_MAIN
+#define XUA_NUM_PDM_MICS 0
+#define XUD_TILE 1
+#define AUDIO_IO_TILE 0
+#define MIXER 0
+
+#ifndef MCLK_441
+#define MCLK_441 (512 * 44100)
+#endif
+
+#ifndef MCLK_48
+#define MCLK_48 (512 * 48000)
+#endif
+
+#define MIN_FREQ (44100)
+#define MAX_FREQ (192000)
+#define SPDIF_TX_INDEX 0
+#define VENDOR_STR "XMOS"
+#define VENDOR_ID 0x20B1
+#define PRODUCT_STR_A2 "Test device"
+#define PRODUCT_STR_A1 "Test device"
+#define PID_AUDIO_1 1
+#define PID_AUDIO_2 2
+#define AUDIO_CLASS 2
+#define AUDIO_CLASS_FALLBACK 0
+#define BCD_DEVICE 0x1234
+#define XUA_DFU_EN          0
+#define MIC_DUAL_ENABLED 1        //Use single thread, dual PDM mic
+#define XUA_MIC_FRAME_SIZE 240
+
+#endif