diff --git a/demos/device/device_cmsis_rtx/.cproject b/demos/device/device_cmsis_rtx/.cproject
index c3b2ebd2b..59f13efa2 100644
--- a/demos/device/device_cmsis_rtx/.cproject
+++ b/demos/device/device_cmsis_rtx/.cproject
@@ -572,8 +572,8 @@
 									<listOptionValue builtIn="false" value="RTX_CM0"/>
 								</option>
 								<option id="com.crt.advproject.link.gcc.hdrlib.1098185782" name="Library" superClass="com.crt.advproject.link.gcc.hdrlib" value="com.crt.advproject.gcc.link.hdrlib.codered.nohost" valueType="enumerated"/>
-								<option id="com.crt.advproject.link.gcc.multicore.slave.1664969067" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
-								<option id="com.crt.advproject.link.gcc.multicore.master.1296103241" superClass="com.crt.advproject.link.gcc.multicore.master"/>
+								<option id="com.crt.advproject.link.gcc.multicore.slave.1664969067" name="Multicore slave" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
+								<option id="com.crt.advproject.link.gcc.multicore.master.1296103241" name="Multicore" superClass="com.crt.advproject.link.gcc.multicore.master"/>
 								<inputType id="cdt.managedbuild.tool.gnu.c.linker.input.1799133268" superClass="cdt.managedbuild.tool.gnu.c.linker.input">
 									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
 									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
diff --git a/demos/device/device_freertos/.cproject b/demos/device/device_freertos/.cproject
index ff991ee83..28655674d 100644
--- a/demos/device/device_freertos/.cproject
+++ b/demos/device/device_freertos/.cproject
@@ -170,8 +170,8 @@
 								<option id="gnu.c.link.option.paths.1946871342" name="Library search path (-L)" superClass="gnu.c.link.option.paths"/>
 								<option id="gnu.c.link.option.libs.937236410" name="Libraries (-l)" superClass="gnu.c.link.option.libs"/>
 								<option id="com.crt.advproject.link.gcc.hdrlib.1273255587" name="Library" superClass="com.crt.advproject.link.gcc.hdrlib" value="com.crt.advproject.gcc.link.hdrlib.codered.nohost" valueType="enumerated"/>
-								<option id="com.crt.advproject.link.gcc.multicore.slave.1321595401" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
-								<option id="com.crt.advproject.link.gcc.multicore.master.871347365" superClass="com.crt.advproject.link.gcc.multicore.master"/>
+								<option id="com.crt.advproject.link.gcc.multicore.slave.1321595401" name="Multicore slave" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
+								<option id="com.crt.advproject.link.gcc.multicore.master.871347365" name="Multicore" superClass="com.crt.advproject.link.gcc.multicore.master"/>
 								<inputType id="cdt.managedbuild.tool.gnu.c.linker.input.888929207" superClass="cdt.managedbuild.tool.gnu.c.linker.input">
 									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
 									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
diff --git a/demos/device/device_freertos/device_freertos.uvopt b/demos/device/device_freertos/device_freertos.uvopt
index 8a2e49913..739446e07 100644
--- a/demos/device/device_freertos/device_freertos.uvopt
+++ b/demos/device/device_freertos/device_freertos.uvopt
@@ -73,7 +73,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>1</IsCurrentTarget>
+        <IsCurrentTarget>0</IsCurrentTarget>
       </OPTFL>
       <CpuCode>8</CpuCode>
       <DllOpt>
@@ -679,7 +679,7 @@
       <OPTFL>
         <tvExp>1</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>0</IsCurrentTarget>
+        <IsCurrentTarget>1</IsCurrentTarget>
       </OPTFL>
       <CpuCode>8</CpuCode>
       <DllOpt>
@@ -937,7 +937,7 @@
       <Focus>0</Focus>
       <ColumnNumber>15</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>77</TopLine>
+      <TopLine>78</TopLine>
       <CurrentLine>86</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\src\main.c</PathWithFileName>
@@ -1449,7 +1449,7 @@
       <Focus>0</Focus>
       <ColumnNumber>27</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>61</TopLine>
+      <TopLine>62</TopLine>
       <CurrentLine>64</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\boards\board.c</PathWithFileName>
@@ -1993,7 +1993,7 @@
       <Focus>0</Focus>
       <ColumnNumber>0</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>147</TopLine>
+      <TopLine>148</TopLine>
       <CurrentLine>156</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\mcu\lpc43xx\keil\startup_LPC43xx.s</PathWithFileName>
@@ -2063,10 +2063,10 @@
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>45</ColumnNumber>
+      <ColumnNumber>0</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>1654</TopLine>
-      <CurrentLine>1662</CurrentLine>
+      <TopLine>1655</TopLine>
+      <CurrentLine>1665</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\vendor\freertos\freertos\Source\tasks.c</PathWithFileName>
       <FilenameWithoutPath>tasks.c</FilenameWithoutPath>
diff --git a/demos/host/host_os_none/.cproject b/demos/host/host_os_none/.cproject
index a3f8f00f4..f54877a59 100644
--- a/demos/host/host_os_none/.cproject
+++ b/demos/host/host_os_none/.cproject
@@ -143,6 +143,7 @@
 								</option>
 								<option id="com.crt.advproject.c.misc.dialect.785308269" name="C Dialect" superClass="com.crt.advproject.c.misc.dialect" value="com.crt.advproject.misc.dialect.gnu99" valueType="enumerated"/>
 								<option id="com.crt.advproject.gcc.fpu.1722235316" name="Floating point" superClass="com.crt.advproject.gcc.fpu" value="com.crt.advproject.gcc.fpu.fpv4" valueType="enumerated"/>
+								<option id="com.crt.advproject.gcc.exe.debug.option.optimization.level.1947251713" superClass="com.crt.advproject.gcc.exe.debug.option.optimization.level" value="gnu.c.optimization.level.none" valueType="enumerated"/>
 								<inputType id="com.crt.advproject.compiler.input.772057054" superClass="com.crt.advproject.compiler.input"/>
 							</tool>
 							<tool command="arm-none-eabi-gcc" commandLinePattern="${COMMAND} ${FLAGS} ${OUTPUT_FLAG}${OUTPUT_PREFIX}${OUTPUT} ${INPUTS}" errorParsers="org.eclipse.cdt.core.GASErrorParser" id="com.crt.advproject.gas.exe.debug.973267950" name="MCU Assembler" superClass="com.crt.advproject.gas.exe.debug">
diff --git a/tinyusb/host/ehci/ehci.c b/tinyusb/host/ehci/ehci.c
index 2e2ce1001..b3069388a 100644
--- a/tinyusb/host/ehci/ehci.c
+++ b/tinyusb/host/ehci/ehci.c
@@ -592,7 +592,7 @@ static void async_list_xfer_complete_isr(ehci_qhd_t * const async_head)
     }
     p_qhd = qhd_next(p_qhd);
     max_loop++;
-  }while(p_qhd != async_head && max_loop < HCD_MAX_ENDPOINT); // async list traversal, stop if loop around
+  }while(p_qhd != async_head && max_loop < HCD_MAX_ENDPOINT*TUSB_CFG_HOST_DEVICE_MAX); // async list traversal, stop if loop around
   // TODO abstract max loop guard for async
 }
 
@@ -606,7 +606,7 @@ static void period_list_xfer_complete_isr(uint8_t hostid, uint8_t interval_ms)
   // TODO abstract max loop guard for period
   while( !next_item.terminate &&
       !(interval_ms > 1 && period_1ms_addr == align32(next_item.address)) &&
-      max_loop < (HCD_MAX_ENDPOINT + EHCI_MAX_ITD + EHCI_MAX_SITD))
+      max_loop < (HCD_MAX_ENDPOINT + EHCI_MAX_ITD + EHCI_MAX_SITD)*TUSB_CFG_HOST_DEVICE_MAX)
   {
     switch ( next_item.type )
     {
@@ -646,8 +646,8 @@ static void qhd_xfer_error_isr(ehci_qhd_t * p_qhd)
 
     p_qhd->total_xferred_bytes += p_qhd->p_qtd_list_head->expected_bytes - p_qhd->p_qtd_list_head->total_bytes;
 
-    // TODO skip unplugged device
-    if ( TUSB_EVENT_XFER_ERROR == error_event )    hal_debugger_breakpoint();
+
+//    if ( TUSB_EVENT_XFER_ERROR == error_event )    hal_debugger_breakpoint(); // TODO skip unplugged device
 
     p_qhd->p_qtd_list_head->used = 0; // free QTD
     qtd_remove_1st_from_qhd(p_qhd);
@@ -691,7 +691,7 @@ static void xfer_error_isr(uint8_t hostid)
     qhd_xfer_error_isr( p_qhd );
     p_qhd = qhd_next(p_qhd);
     max_loop++;
-  }while(p_qhd != async_head && max_loop < HCD_MAX_ENDPOINT); // async list traversal, stop if loop around
+  }while(p_qhd != async_head && max_loop < HCD_MAX_ENDPOINT*TUSB_CFG_HOST_DEVICE_MAX); // async list traversal, stop if loop around
 
   #if EHCI_PERIODIC_LIST
   //------------- TODO refractor period list -------------//
@@ -704,7 +704,7 @@ static void xfer_error_isr(uint8_t hostid)
     // TODO abstract max loop guard for period
     while( !next_item.terminate &&
         !(interval_ms > 1 && period_1ms_addr == align32(next_item.address)) &&
-        period_max_loop < (HCD_MAX_ENDPOINT + EHCI_MAX_ITD + EHCI_MAX_SITD))
+        period_max_loop < (HCD_MAX_ENDPOINT + EHCI_MAX_ITD + EHCI_MAX_SITD)*TUSB_CFG_HOST_DEVICE_MAX)
     {
       switch ( next_item.type )
       {
diff --git a/tinyusb/host/ohci/ohci.c b/tinyusb/host/ohci/ohci.c
index 128760779..ef6da66d5 100644
--- a/tinyusb/host/ohci/ohci.c
+++ b/tinyusb/host/ohci/ohci.c
@@ -384,7 +384,7 @@ static inline ohci_ed_t * ed_find_free(uint8_t dev_addr)
 
 static ohci_ed_t * ed_list_find_previous(ohci_ed_t const * p_head, ohci_ed_t const * p_ed)
 {
-  uint32_t max_loop = HCD_MAX_ENDPOINT;
+  uint32_t max_loop = HCD_MAX_ENDPOINT*TUSB_CFG_HOST_DEVICE_MAX;
 
   ohci_ed_t const * p_prev = p_head;