diff --git a/demos/host/host_os_none/host_os_none.ewd b/demos/host/host_os_none/host_os_none.ewd
index 233debece..2d5807f83 100644
--- a/demos/host/host_os_none/host_os_none.ewd
+++ b/demos/host/host_os_none/host_os_none.ewd
@@ -774,7 +774,7 @@
         </option>
         <option>
           <name>CCJLinkInterfaceRadio</name>
-          <state>0</state>
+          <state>1</state>
         </option>
         <option>
           <name>OCJLinkAttachSlave</name>
@@ -848,7 +848,7 @@
         </option>
         <option>
           <name>CCSwoClockAuto</name>
-          <state>0</state>
+          <state>1</state>
         </option>
         <option>
           <name>CCSwoClockEdit</name>
@@ -856,7 +856,7 @@
         </option>
         <option>
           <name>OCJLinkTraceSource</name>
-          <state>0</state>
+          <state>1</state>
         </option>
         <option>
           <name>OCJLinkTraceSourceDummy</name>
diff --git a/demos/host/host_os_none/host_os_none.uvopt b/demos/host/host_os_none/host_os_none.uvopt
index 702c4551d..2fcf8cbe9 100644
--- a/demos/host/host_os_none/host_os_none.uvopt
+++ b/demos/host/host_os_none/host_os_none.uvopt
@@ -132,6 +132,11 @@
         <pMon>Segger\JL2CM3.dll</pMon>
       </DebugOpt>
       <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>DLGUARM</Key>
+          <Name></Name>
+        </SetRegEntry>
         <SetRegEntry>
           <Number>0</Number>
           <Key>DLGTARM</Key>
@@ -145,7 +150,7 @@
         <SetRegEntry>
           <Number>0</Number>
           <Key>JL2CM3</Key>
-          <Name>-U268003250 -O1006 -S8 -A0 -C0 -JU1 -JI127.0.0.1 -JP0 -RST0 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -TO19 -TC72000000 -TP21 -TDS800B -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -TB5 -TFE0 -FO15 -FD10000000 -FC800 -FN2 -FF0LPC18xx43xx_512_BA -FS01A000000 -FL080000 -FF1LPC18xx43xx_512_BB -FS11B000000 -FL180000</Name>
+          <Name>-U268003250 -O1006 -S8 -A0 -C0 -JU1 -JI127.0.0.1 -JP0 -RST0 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(4) -TO23 -TC72000000 -TP21 -TDS800B -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -TB5 -TFE1 -FO15 -FD10000000 -FC800 -FN2 -FF0LPC18xx43xx_512_BA -FS01A000000 -FL080000 -FF1LPC18xx43xx_512_BB -FS11B000000 -FL180000</Name>
         </SetRegEntry>
         <SetRegEntry>
           <Number>0</Number>
@@ -165,7 +170,7 @@
         <trace>0</trace>
         <periodic>1</periodic>
         <aLwin>1</aLwin>
-        <aCover>0</aCover>
+        <aCover>1</aCover>
         <aSer1>0</aSer1>
         <aSer2>0</aSer2>
         <aPa>0</aPa>
@@ -179,7 +184,7 @@
         <aSer3>0</aSer3>
         <eProf>0</eProf>
         <aLa>0</aLa>
-        <aPa1>0</aPa1>
+        <aPa1>1</aPa1>
         <AscS4>0</AscS4>
         <aSer4>1</aSer4>
         <StkLoc>0</StkLoc>
@@ -389,8 +394,8 @@
       <Focus>0</Focus>
       <ColumnNumber>0</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>149</TopLine>
-      <CurrentLine>158</CurrentLine>
+      <TopLine>170</TopLine>
+      <CurrentLine>175</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\src\main.c</PathWithFileName>
       <FilenameWithoutPath>main.c</FilenameWithoutPath>
@@ -421,8 +426,8 @@
       <Focus>0</Focus>
       <ColumnNumber>20</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>0</TopLine>
-      <CurrentLine>0</CurrentLine>
+      <TopLine>117</TopLine>
+      <CurrentLine>129</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\src\keyboard_app.c</PathWithFileName>
       <FilenameWithoutPath>keyboard_app.c</FilenameWithoutPath>
@@ -435,10 +440,10 @@
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>47</ColumnNumber>
+      <ColumnNumber>0</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>61</TopLine>
-      <CurrentLine>139</CurrentLine>
+      <TopLine>119</TopLine>
+      <CurrentLine>131</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\src\mouse_app.c</PathWithFileName>
       <FilenameWithoutPath>mouse_app.c</FilenameWithoutPath>
@@ -493,7 +498,7 @@
       <Focus>0</Focus>
       <ColumnNumber>2</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>137</TopLine>
+      <TopLine>138</TopLine>
       <CurrentLine>146</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\bsp\boards\embedded_artists\board_ea4357.c</PathWithFileName>
@@ -509,7 +514,7 @@
       <Focus>0</Focus>
       <ColumnNumber>1</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>99</TopLine>
+      <TopLine>100</TopLine>
       <CurrentLine>106</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\bsp\boards\printf_retarget.c</PathWithFileName>
@@ -643,10 +648,10 @@
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>1</ColumnNumber>
+      <ColumnNumber>0</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>0</TopLine>
-      <CurrentLine>0</CurrentLine>
+      <TopLine>57</TopLine>
+      <CurrentLine>76</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\tinyusb\tusb.c</PathWithFileName>
       <FilenameWithoutPath>tusb.c</FilenameWithoutPath>
@@ -707,10 +712,10 @@
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>0</ColumnNumber>
+      <ColumnNumber>30</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
       <TopLine>1</TopLine>
-      <CurrentLine>1</CurrentLine>
+      <CurrentLine>21</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\tinyusb\host\usbh.c</PathWithFileName>
       <FilenameWithoutPath>usbh.c</FilenameWithoutPath>
@@ -723,10 +728,10 @@
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>0</ColumnNumber>
+      <ColumnNumber>47</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
       <TopLine>1</TopLine>
-      <CurrentLine>1</CurrentLine>
+      <CurrentLine>13</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\tinyusb\host\ehci\ehci.c</PathWithFileName>
       <FilenameWithoutPath>ehci.c</FilenameWithoutPath>
@@ -771,10 +776,10 @@
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>0</ColumnNumber>
+      <ColumnNumber>8</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>60</TopLine>
-      <CurrentLine>69</CurrentLine>
+      <TopLine>58</TopLine>
+      <CurrentLine>77</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\tinyusb\hal\hal_lpc43xx.c</PathWithFileName>
       <FilenameWithoutPath>hal_lpc43xx.c</FilenameWithoutPath>
@@ -835,10 +840,10 @@
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>15</ColumnNumber>
+      <ColumnNumber>28</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>1</TopLine>
-      <CurrentLine>24</CurrentLine>
+      <TopLine>15</TopLine>
+      <CurrentLine>32</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\tinyusb\class\cdc_host.c</PathWithFileName>
       <FilenameWithoutPath>cdc_host.c</FilenameWithoutPath>
@@ -995,10 +1000,10 @@
       <FileType>2</FileType>
       <tvExp>0</tvExp>
       <Focus>0</Focus>
-      <ColumnNumber>12</ColumnNumber>
+      <ColumnNumber>0</ColumnNumber>
       <tvExpOptDlg>0</tvExpOptDlg>
-      <TopLine>147</TopLine>
-      <CurrentLine>150</CurrentLine>
+      <TopLine>145</TopLine>
+      <CurrentLine>151</CurrentLine>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\bsp\lpc43xx\startup_keil\startup_LPC43xx.s</PathWithFileName>
       <FilenameWithoutPath>startup_LPC43xx.s</FilenameWithoutPath>
diff --git a/demos/host/src/tusb_config.h b/demos/host/src/tusb_config.h
index b44c2ee73..dba30c76c 100644
--- a/demos/host/src/tusb_config.h
+++ b/demos/host/src/tusb_config.h
@@ -114,7 +114,7 @@
 #elif defined  __CC_ARM // Compiled with Keil armcc
   #define TUSB_CFG_ATTR_USBRAM
 #elif __ICCARM__ // compiled with IAR
-  #define TUSB_CFG_ATTR_USBRAM
+  #define TUSB_CFG_ATTR_USBRAM  @ ".ahb_sram1"
 #else
   #error compiler not specified
 #endif
diff --git a/readme.md b/readme.md
index d7ffe27eb..2eaa0b360 100644
--- a/readme.md
+++ b/readme.md
@@ -47,8 +47,9 @@ coming soon ...
 
 The following toolchain is supported
 
-- lpcxpresso/redsuite
-- Keil
+- *lpcxpresso/redsuite*
+- *Keil MDK*
+- *IAR Workbench*
 
 ## Supported Boards ##