diff --git a/board/Sipeed_LonganNano/BSP/Src/mcu_init.c b/board/Sipeed_LonganNano/BSP/Src/mcu_init.c
index 073ae165..702171dc 100644
--- a/board/Sipeed_LonganNano/BSP/Src/mcu_init.c
+++ b/board/Sipeed_LonganNano/BSP/Src/mcu_init.c
@@ -14,7 +14,7 @@ void board_init() {
     gpio_bit_set(LEDG_GPIO_PORT, LEDG_PIN);
     gpio_bit_set(LEDB_GPIO_PORT, LEDB_PIN);
 
-#if 1
+#if 0
     LCD_Init();         // init LCD
     LCD_Clear(BLACK);
 #endif
diff --git a/board/Sipeed_LonganNano/eclipse/nRF24L01/.cproject b/board/Sipeed_LonganNano/eclipse/nRF24L01/.cproject
index c9f0361d..3a2a411f 100644
--- a/board/Sipeed_LonganNano/eclipse/nRF24L01/.cproject
+++ b/board/Sipeed_LonganNano/eclipse/nRF24L01/.cproject
@@ -35,61 +35,61 @@
                         						
                         <toolChain id="ilg.gnumcueclipse.managedbuild.cross.riscv.toolchain.elf.debug.8330431" name="RISC-V Cross GCC" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.toolchain.elf.debug">
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createflash.1202731164" name="Create flash image" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createflash" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createflash.1202731164" name="Create flash image" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createflash" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createlisting.1939916912" name="Create extended listing" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createlisting" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createlisting.1939916912" name="Create extended listing" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.createlisting" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.printsize.662073656" name="Print size" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.printsize" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.printsize.662073656" name="Print size" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.addtools.printsize" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.level.1313552818" name="Optimization Level" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.level" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.level.debug" valueType="enumerated"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.level.1313552818" name="Optimization Level" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.level" useByScannerDiscovery="true" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.level.none" valueType="enumerated"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.messagelength.1404627735" name="Message length (-fmessage-length=0)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.messagelength" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.messagelength.1404627735" name="Message length (-fmessage-length=0)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.messagelength" useByScannerDiscovery="true" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.signedchar.1267661089" name="'char' is signed (-fsigned-char)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.signedchar" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.signedchar.1267661089" name="'char' is signed (-fsigned-char)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.signedchar" useByScannerDiscovery="true" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.functionsections.1426360736" name="Function sections (-ffunction-sections)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.functionsections" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.functionsections.1426360736" name="Function sections (-ffunction-sections)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.functionsections" useByScannerDiscovery="true" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.datasections.759847876" name="Data sections (-fdata-sections)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.datasections" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.datasections.759847876" name="Data sections (-fdata-sections)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.optimization.datasections" useByScannerDiscovery="true" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.level.668391469" name="Debug level" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.level" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.level.max" valueType="enumerated"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.level.668391469" name="Debug level" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.level" useByScannerDiscovery="true" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.level.max" valueType="enumerated"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.format.1164967264" name="Debug format" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.format"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.format.1164967264" name="Debug format" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.debugging.format" useByScannerDiscovery="true"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.name.1072740689" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.name" value="GNU MCU RISC-V GCC" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.name.1072740689" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.name" useByScannerDiscovery="false" value="GNU MCU RISC-V GCC" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.prefix.1957750909" name="Prefix" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.prefix" value="riscv-none-embed-" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.prefix.1957750909" name="Prefix" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.prefix" useByScannerDiscovery="false" value="riscv-none-embed-" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.c.1974277961" name="C compiler" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.c" value="gcc" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.c.1974277961" name="C compiler" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.c" useByScannerDiscovery="false" value="gcc" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.cpp.1904763105" name="C++ compiler" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.cpp" value="g++" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.cpp.1904763105" name="C++ compiler" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.cpp" useByScannerDiscovery="false" value="g++" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.ar.1687279771" name="Archiver" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.ar" value="ar" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.ar.1687279771" name="Archiver" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.ar" useByScannerDiscovery="false" value="ar" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objcopy.990721007" name="Hex/Bin converter" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objcopy" value="objcopy" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objcopy.990721007" name="Hex/Bin converter" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objcopy" useByScannerDiscovery="false" value="objcopy" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objdump.1007157873" name="Listing generator" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objdump" value="objdump" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objdump.1007157873" name="Listing generator" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.objdump" useByScannerDiscovery="false" value="objdump" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.size.2005273946" name="Size command" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.size" value="size" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.size.2005273946" name="Size command" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.size" useByScannerDiscovery="false" value="size" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.make.817675941" name="Build command" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.make" value="make" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.make.817675941" name="Build command" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.make" useByScannerDiscovery="false" value="make" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.rm.1016789776" name="Remove command" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.rm" value="rm" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.rm.1016789776" name="Remove command" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.command.rm" useByScannerDiscovery="false" value="rm" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.id.631765752" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.id" value="512258282" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.id.631765752" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.toolchain.id" useByScannerDiscovery="false" value="512258282" valueType="string"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.base.1350567922" name="Architecture" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.base" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.arch.rv32i" valueType="enumerated"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.base.1350567922" name="Architecture" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.base" useByScannerDiscovery="false" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.arch.rv32i" valueType="enumerated"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.multiply.1880868567" name="Multiply extension (RVM)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.multiply" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.multiply.1880868567" name="Multiply extension (RVM)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.multiply" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.atomic.456415389" name="Atomic extension (RVA)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.atomic" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.atomic.456415389" name="Atomic extension (RVA)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.atomic" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.compressed.2087083466" name="Compressed extension (RVC)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.compressed" value="true" valueType="boolean"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.compressed.2087083466" name="Compressed extension (RVC)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.isa.compressed" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.abi.integer.520770065" name="Integer ABI" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.abi.integer" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.abi.integer.ilp32" valueType="enumerated"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.abi.integer.520770065" name="Integer ABI" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.abi.integer" useByScannerDiscovery="false" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.abi.integer.ilp32" valueType="enumerated"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.codemodel.1599179399" name="Code model" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.codemodel" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.codemodel.default" valueType="enumerated"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.codemodel.1599179399" name="Code model" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.codemodel" useByScannerDiscovery="false" value="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.codemodel.default" valueType="enumerated"/>
                             							
-                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.smalldatalimit.1215554700" name="Small data limit" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.smalldatalimit" value="4" valueType="string"/>
+                            <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.smalldatalimit.1215554700" name="Small data limit" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.target.smalldatalimit" useByScannerDiscovery="false" value="4" valueType="string"/>
                             							
                             <targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.ELF" id="ilg.gnumcueclipse.managedbuild.cross.riscv.targetPlatform.1085168581" isAbstract="false" osList="all" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.targetPlatform"/>
                             							
@@ -97,7 +97,7 @@
                             							
                             <tool id="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.assembler.933880407" name="GNU RISC-V Cross Assembler" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.assembler">
                                 								
-                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.assembler.usepreprocessor.525634082" name="Use preprocessor" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.assembler.usepreprocessor" value="true" valueType="boolean"/>
+                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.assembler.usepreprocessor.525634082" name="Use preprocessor" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.assembler.usepreprocessor" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                                 								
                                 <option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.assembler.include.paths.334418871" name="Include paths (-I)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.assembler.include.paths" useByScannerDiscovery="true" valueType="includePath">
                                     									
@@ -209,21 +209,21 @@
                             							
                             <tool id="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.createlisting.125062338" name="GNU RISC-V Cross Create Listing" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.createlisting">
                                 								
-                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.source.1032156266" name="Display source (--source|-S)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.source" value="true" valueType="boolean"/>
+                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.source.1032156266" name="Display source (--source|-S)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.source" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                                 								
-                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.allheaders.130399435" name="Display all headers (--all-headers|-x)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.allheaders" value="true" valueType="boolean"/>
+                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.allheaders.130399435" name="Display all headers (--all-headers|-x)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.allheaders" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                                 								
-                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.demangle.1410206102" name="Demangle names (--demangle|-C)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.demangle" value="true" valueType="boolean"/>
+                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.demangle.1410206102" name="Demangle names (--demangle|-C)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.demangle" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                                 								
-                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.linenumbers.80630986" name="Display line numbers (--line-numbers|-l)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.linenumbers" value="true" valueType="boolean"/>
+                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.linenumbers.80630986" name="Display line numbers (--line-numbers|-l)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.linenumbers" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                                 								
-                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.wide.1257944666" name="Wide lines (--wide|-w)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.wide" value="true" valueType="boolean"/>
+                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.wide.1257944666" name="Wide lines (--wide|-w)" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.createlisting.wide" useByScannerDiscovery="false" value="true" valueType="boolean"/>
                                 							
                             </tool>
                             							
                             <tool id="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.printsize.855604372" name="GNU RISC-V Cross Print Size" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.printsize">
                                 								
-                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.printsize.format.545311739" name="Size format" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.printsize.format"/>
+                                <option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.printsize.format.545311739" name="Size format" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.printsize.format" useByScannerDiscovery="false"/>
                                 							
                             </tool>
                             						
diff --git a/board/Sipeed_LonganNano/eclipse/nRF24L01/main.c b/board/Sipeed_LonganNano/eclipse/nRF24L01/main.c
index acdf67fd..883d3d85 100644
--- a/board/Sipeed_LonganNano/eclipse/nRF24L01/main.c
+++ b/board/Sipeed_LonganNano/eclipse/nRF24L01/main.c
@@ -3,19 +3,20 @@
 #include "lcd.h"
 #include "nrf24.h"
 
+#if 0
 #define TASK_SIZE 1024
 
 
-    k_task_t task1_handle;
-    k_task_t task2_handle;
-    k_task_t led_handle;
+k_task_t task1_handle;
+k_task_t task2_handle;
+k_task_t led_handle;
 
 uint8_t task1_stk[TASK_SIZE];
-uint8_t task2_stk[TASK_SIZE*8];
+uint8_t task2_stk[TASK_SIZE*1];
 uint8_t led_stk[TASK_SIZE/2];
+#endif
+
 
-int share = 0xCBA7F9;
-k_sem_t sem;
 
 typedef struct {
     int port;
@@ -43,16 +44,13 @@ void task1(void *arg)
         tos_task_delay(1000);
     }
 }
-//extern uint8_t nrf_received_data = 0;
-extern uint8_t nrf_hal_test_rx();
+
 void task2(void *arg)
 {
     int task_cnt2 = 0;
 
-    nrf24l01_init();
-    nrf_hal_test_rx();
     while (1) {
-        printf("hello world from %s cnt: %08x\n", __func__, task_cnt2--);
+        //printf("hello world from %s cnt: %08x\n", __func__, task_cnt2--);
         tos_task_delay(200);
     }
 }
@@ -87,19 +85,16 @@ void task_led(void *arg)
 void main(void) {
     board_init();
 
-    usart0_init(115200);
+    //usart0_init(115200);
 
     tos_knl_init();
 
 
-    //tos_task_create(&task1_handle, "task1", task1,      NULL, 2, task1_stk, TASK_SIZE, 0);
-    tos_task_create(&task2_handle, "task2", task2,      NULL, 3, task2_stk, TASK_SIZE*8, 0);
-    //tos_task_create(&led_handle,   "led",   task_led,   NULL, 2, led_stk,   TASK_SIZE/2, 0);
+    nrf24l01_init();
 
-    k_err_t err = tos_sem_create(&sem, 1);
-    if (err != K_ERR_NONE) {
-        goto die;
-    }
+    //tos_task_create(&task1_handle, "task1", task1,      NULL, 2, task1_stk, TASK_SIZE, 0);
+    //tos_task_create(&task2_handle, "task2", task2,      NULL, 3, task2_stk, TASK_SIZE*1, 0);
+    //tos_task_create(&led_handle,   "led",   task_led,   NULL, 2, led_stk,   TASK_SIZE/2, 0);
 
     tos_knl_start();
 
diff --git a/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24.c b/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24.c
index c7cea0a2..4f981251 100644
--- a/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24.c
+++ b/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24.c
@@ -1,9 +1,18 @@
 #include "nrf24.h"
+#include "tos_k.h"
+#include <stdio.h>
+
+int flag = 0;
+#define TASK_SIZE (8*1024)
+k_task_t task_nrf24_handle;
+uint8_t task_nrf24_stk[TASK_SIZE];
+
+void task_nrf24();
 
 void nrf24l01_init() {
     rcu_periph_clock_enable(RCU_GPIOA);
     rcu_periph_clock_enable(RCU_GPIOB);
-    //rcu_periph_clock_enable(RCU_AF);
+    rcu_periph_clock_enable(RCU_AF);
     rcu_periph_clock_enable(RCU_SPI0);
 	#define  SPIx  SPI0
 
@@ -19,6 +28,8 @@ void nrf24l01_init() {
 
 
 
+    tos_task_create(&task_nrf24_handle, "task_nrf24", task_nrf24,  NULL, 5, task_nrf24_stk, TASK_SIZE, 0);
+
     nrf_hal_init_t nhi;
     nhi.spi = SPIx;
     nhi.ce_port = GPIOA;
@@ -49,26 +60,271 @@ void nrf24l01_init() {
     spi_init_struct.endian               = SPI_ENDIAN_MSB;
     spi_init(SPIx, &spi_init_struct);
 
-
-
+    spi_enable(SPIx);
 
     spi_ti_mode_disable(SPIx); // use motorola mode
     spi_crc_off(SPIx);
-    spi_crc_polynomial_set(SPIx,7);
-
+    spi_crc_polynomial_set(SPIx, 7);
     spi_nssp_mode_enable(SPIx);
-    //spi_i2s_data_frame_format_config(SPIx, SPI_FRAMESIZE_8BIT);
-
-
-    //spi_i2s_data_frame_format_config(SPIx, SPI_FRAMESIZE_8BIT);
-    //spi_i2s_interrupt_disable(SPIx, SPI_I2S_INT_TBE);
-    //spi_i2s_interrupt_disable(SPIx, SPI_I2S_INT_RBNE);
-    //spi_i2s_interrupt_disable(SPIx, SPI_I2S_INT_ERR);
-
-
-    spi_enable(SPIx);
-
 
     nrf_init(&nhi);
 
 }
+
+void EXTI0_IRQHandler(void)
+{
+   if (tos_knl_is_running()) {
+        tos_knl_irq_enter();
+
+        if (RESET != exti_interrupt_flag_get(GPIO_PIN_0)){
+
+            exti_interrupt_flag_clear(GPIO_PIN_0);
+
+            uint8_t status = 0;
+            nrf_hal_read_reg_byte(REG_STATUS, &status);
+
+            if(status & _BV(RX_DR)) {
+                  flag = 1;
+            }
+        }
+
+       tos_knl_irq_leave();
+    }
+}
+
+#define ADDRLEN 5
+void print_rxaddr(uint8_t pipe) {
+    uint8_t addr[ADDRLEN];
+
+    uint8_t addrlen = ADDRLEN;
+    nrf_get_rxaddr(pipe, addr, &addrlen);
+
+    printf("pipe %u addr: ", pipe);
+    for(int i=0; i<ADDRLEN; i++) {
+        printf("%u ", addr[i]);
+    }
+    printf("\n");
+}
+
+void task_nrf24() {
+
+    if(1)
+    {
+        // nrf24 irq pin
+        gpio_init(GPIOB, GPIO_MODE_IPU, GPIO_OSPEED_50MHZ, GPIO_PIN_0);
+        gpio_bit_set(GPIOB, GPIO_PIN_0);
+
+        eclic_global_interrupt_enable();
+        eclic_priority_group_set(ECLIC_PRIGROUP_LEVEL3_PRIO1);
+        eclic_irq_enable(EXTI0_IRQn, 1, 1);
+
+        /* connect EXTI line to GPIO pin */
+        gpio_exti_source_select(GPIO_PORT_SOURCE_GPIOB, GPIO_PIN_SOURCE_0);
+
+        exti_init(EXTI_0, EXTI_INTERRUPT, EXTI_TRIG_FALLING);
+        exti_interrupt_flag_clear(EXTI_0);
+
+    }
+
+    uint8_t data = 0;
+
+    nrf_delay(200);
+
+    nrf_hal_csn(1);
+    nrf_hal_ce(0);
+
+    nrf_delay(200);
+
+    nrf_set_standby_mode();
+
+    nrf_set_receive_mode();
+    nrf_enable_rx_irq();
+
+    nrf_set_rf_channel(64);
+    nrf_set_datarate(NRF_2Mbps);
+    uint8_t rxaddr[ADDRLEN] = { 0xAA, 0xCC, 0xEE, 0x00, 0x00 };
+    nrf_set_rxaddr(0, rxaddr, ADDRLEN);
+
+    nrf_enable_dynamic_payload(0);
+    nrf_enable_dynamic_payload(1);
+
+    nrf_enable_rxaddr(0);
+    nrf_enable_rxaddr(1);
+
+    print_rxaddr(0);
+    print_rxaddr(1);
+    print_rxaddr(2);
+
+
+    nrf_flush_rx();
+
+
+    while(1) {
+        while(flag == 0) {
+            nrf_delay(1);
+        }
+        flag = 0;
+
+        uint8_t buf[32];
+        uint8_t len = 0;
+        uint8_t status = 0;
+        nrf_hal_read_reg_byte(REG_STATUS, &status);
+
+        if((status & _BV(RX_DR)) == 0) {
+            printf("nodata %x\n", status);
+        }
+
+        uint8_t pipe = ((status>>1) & 0x07);
+        nrf_read_payload(buf, &len);
+
+        nrf_hal_set_reg_bit(REG_STATUS, _BV(RX_DR));
+
+        nrf_flush_rx();
+
+        printf("received %u bytes from pipe %u: ", len, pipe);
+
+
+        for(int i=0; i<len; i++) {
+            printf("%x ", buf[i]);
+        }
+        printf("\n");
+
+    }
+
+}
+
+
+uint8_t nrf_hal_test_rx_old() {
+
+    uint8_t data = 0;
+
+    nrf_delay(200);
+
+    nrf_hal_csn(1);
+    nrf_hal_ce(0);
+
+    nrf_delay(200);
+
+    nrf_set_standby_mode();
+
+    nrf_set_receive_mode();
+    nrf_disable_rx_irq();
+
+    nrf_set_rf_channel(64);
+    nrf_set_datarate(NRF_2Mbps);
+    uint8_t rxaddr[ADDRLEN] = { 0xAA, 0xCC, 0xEE, 0x00, 0x00 };
+    nrf_set_rxaddr(0, rxaddr, ADDRLEN);
+
+    nrf_enable_dynamic_payload(0);
+    nrf_enable_dynamic_payload(1);
+
+    nrf_enable_rxaddr(0);
+    nrf_enable_rxaddr(1);
+
+    print_rxaddr(0);
+    print_rxaddr(1);
+    print_rxaddr(2);
+
+
+    nrf_flush_rx();
+    while(1) {
+        uint8_t buf[32];
+        uint8_t len = 0;
+        uint8_t status = 0;
+        nrf_hal_read_reg_byte(REG_STATUS, &status);
+
+        if((status & _BV(RX_DR)) == 0) {
+            printf("nodata %x\n", status);
+            nrf_delay(100);
+        }
+
+        uint8_t pipe = 0xFF;
+        uint32_t loop_cnt = 0;
+        while(1) {
+            nrf_hal_read_reg_byte(REG_STATUS, &status);
+            pipe = status;
+            pipe >>= 1;
+            pipe &= 0x07;
+            if(pipe < 6) {
+                break;
+            }
+            nrf_delay(1);
+            loop_cnt++;
+        }
+        nrf_read_payload(buf, &len);
+
+        if(loop_cnt > 0) {
+            printf("loopcnt %u\n", loop_cnt);
+        }
+
+        nrf_hal_set_reg_bit(REG_STATUS, _BV(RX_DR));
+        nrf_hal_read_reg_byte(REG_STATUS, &status);
+
+        nrf_flush_rx();
+
+        printf("received %u bytes from pipe %u: ", len, pipe);
+
+
+        for(int i=0; i<len; i++) {
+            printf("%x ", buf[i]);
+        }
+        printf("\n");
+
+    }
+
+    return data;
+}
+
+
+uint8_t nrf_hal_test_tx() {
+
+    uint8_t data = 0;
+
+    nrf_delay(200);
+    nrf_hal_csn(1);
+    nrf_hal_ce(0);
+    nrf_delay(200);
+
+    nrf_set_standby_mode();
+    nrf_set_send_mode();
+
+    nrf_set_rf_channel(100);
+    nrf_set_datarate(NRF_2Mbps);
+
+    nrf_enable_dynamic_payload(0);
+    uint8_t txaddr[] = { 1, 2, 3, 4, 0 };
+    nrf_set_txaddr(txaddr, 5);
+
+    nrf_flush_rx();
+    nrf_flush_tx();
+    uint32_t cnt = 0;
+    while(1) {
+        nrf_flush_rx();
+        nrf_flush_tx();
+        uint8_t buf[] = {0x0A, 0x0C, 0x0E, cnt++ };
+        nrf_write_payload(buf, sizeof(buf));
+
+        while(1) {
+            uint8_t status = 0;
+            nrf_hal_read_reg_byte(REG_STATUS, &status);
+
+            printf("status %x\n", status);
+            if(status & _BV(MAX_RT)) {
+                printf("send error....\n");
+                nrf_hal_set_reg_bit(REG_STATUS, _BV(MAX_RT));
+                nrf_flush_tx();
+                break;
+            }else if(status &  _BV(TX_DS)) {
+                printf("sended....\n");
+                nrf_hal_set_reg_bit(REG_STATUS, _BV(TX_DS));
+                break;
+            } else {
+                printf("sending....\n");
+            }
+        }
+
+        nrf_delay(100);
+    }
+
+    return data;
+}
diff --git a/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.c b/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.c
index 54362b05..0f01a610 100644
--- a/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.c
+++ b/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.c
@@ -72,6 +72,46 @@ int nrf_set_rxaddr(uint8_t pipe, uint8_t *addr, uint8_t addrlen) {
 	return nrf_hal_write_reg(reg, addr, addrlen);
 }
 
+int nrf_get_addrlen() {
+    uint8_t v = 0;
+    uint8_t addrlen = 0;
+    if(0 != nrf_hal_read_reg_byte(REG_SETUP_AW, v)) {
+        return 0;
+    }
+
+    v &= 0x03;
+
+    switch(v) {
+    case AW_3BYTES:
+        addrlen = 3;
+        break;
+    case AW_4BYTES:
+        addrlen = 4;
+        break;
+    case AW_5BYTES:
+        addrlen = 5;
+        break;
+    default:
+        break;
+    }
+
+    return addrlen;
+}
+
+int nrf_get_rxaddr(uint8_t pipe, uint8_t *addr, uint8_t *addrlen) {
+
+    *addrlen = nrf_get_addrlen();
+
+    uint8_t reg = REG_RX_ADDR_P0 + pipe;
+
+    return nrf_hal_read_reg(reg, addr, *addrlen);
+}
+
+int nrf_get_txaddr(uint8_t *addr, uint8_t *addrlen) {
+    *addrlen = nrf_get_addrlen();
+    return nrf_hal_read_reg(REG_TX_ADDR, addr, *addrlen);
+}
+
 int nrf_set_txaddr(uint8_t *addr, uint8_t addrlen) {
 	if(addrlen >= 6) {
 		return -1;
@@ -224,152 +264,3 @@ int nrf_read_payload(uint8_t *buf, uint8_t *len) {
 int nrf_write_payload(uint8_t *buf, uint8_t len) {
 	return nrf_hal_cmd_write(CMD_W_TX_PAYLOAD_NOACK, buf, len);
 }
-
-void print_addr(uint8_t pipe) {
-	uint8_t addr[5];
-	nrf_hal_read_reg(REG_RX_ADDR_P0+pipe, addr, 5);
-
-	printf("pipe %u addr: ", pipe);
-	for(int i=0; i<5; i++) {
-		printf("%u ", addr[i]);
-	}
-	printf("\n");
-}
-
-uint8_t nrf_received_data = 0;
-uint8_t nrf_hal_test_rx() {
-
-	uint8_t data = 0;
-
-	nrf_delay(200);
-
-	nrf_hal_csn(1);
-	nrf_hal_ce(0);
-
-	nrf_delay(200);
-#if 0
-	while(1) {
-		nrf_hal_write_reg_byte(REG_CONFIG, _BV(EN_CRC) | _BV(CRCO));
-		nrf_hal_read_reg_byte(REG_CONFIG, &data);
-		nrf_delay(100);
-	}
-#endif
-
-
-	nrf_set_standby_mode();
-
-	nrf_set_receive_mode();
-	nrf_disable_rx_irq();
-
-	nrf_set_rf_channel(64);
-	nrf_set_datarate(NRF_2Mbps);
-	uint8_t rxaddr[] = { 1, 2, 3, 4, 1 };
-	uint8_t txaddr[] = { 1, 2, 3, 4, 2 };
-	nrf_set_rxaddr(0, rxaddr, 5);
-	nrf_set_txaddr(txaddr, 5);
-
-	nrf_enable_dynamic_payload(0);
-	nrf_enable_dynamic_payload(1);
-
-	nrf_enable_rxaddr(0);
-	nrf_enable_rxaddr(1);
-
-	print_addr(0);
-	print_addr(1);
-	print_addr(2);
-
-
-	nrf_flush_rx();
-	while(1) {
-		uint8_t buf[32];
-		uint8_t len = 0;
-		uint8_t status = 0;
-		nrf_hal_read_reg_byte(REG_STATUS, &status);
-		nrf_read_payload(buf, &len);
-
-		if(status &  _BV(RX_DR)) {
-			nrf_hal_set_reg_bit(REG_STATUS, _BV(RX_DR));
-			nrf_flush_rx();
-
-			if(len > 0) {
-				uint8_t pipe = status;
-				pipe >>= 1;
-				pipe &= 0x07;
-				printf("received %u bytes from pipe %u: ", len, pipe);
-				if(pipe >= 6) {
-					printf("\n");
-					continue;
-				}
-				for(int i=0; i<len; i++) {
-					printf("%x ", buf[i]);
-				}
-				nrf_received_data = 1;
-				printf("\n");
-			}
-
-		} else {
-			printf("nodata %x\n", status);
-			nrf_delay(100);
-		}
-	}
-
-	return data;
-}
-
-uint8_t nrf_hal_test_tx() {
-
-	uint8_t data = 0;
-
-	nrf_delay(200);
-	nrf_hal_csn(1);
-	nrf_hal_ce(0);
-	nrf_delay(200);
-
-	nrf_set_standby_mode();
-	nrf_set_send_mode();
-
-	nrf_set_rf_channel(100);
-	nrf_set_datarate(NRF_2Mbps);
-
-	nrf_enable_dynamic_payload(0);
-	uint8_t txaddr[] = { 1, 2, 3, 4, 0 };
-	nrf_set_txaddr(txaddr, 5);
-
-	nrf_flush_rx();
-	nrf_flush_tx();
-	uint32_t cnt = 0;
-	while(1) {
-		nrf_flush_rx();
-		nrf_flush_tx();
-		uint8_t buf[] = {0x0A, 0x0C, 0x0E, cnt++ };
-		nrf_write_payload(buf, sizeof(buf));
-
-		while(1) {
-			uint8_t status = 0;
-			nrf_hal_read_reg_byte(REG_STATUS, &status);
-
-			printf("status %x\n", status);
-			if(status & _BV(MAX_RT)) {
-				printf("send error....\n");
-				nrf_hal_set_reg_bit(REG_STATUS, _BV(MAX_RT));
-				nrf_flush_tx();
-				break;
-			}else if(status &  _BV(TX_DS)) {
-				printf("sended....\n");
-				nrf_hal_set_reg_bit(REG_STATUS, _BV(TX_DS));
-				break;
-			} else {
-				printf("sending....\n");
-			}
-		}
-
-		nrf_delay(100);
-	}
-
-	return data;
-}
-
-uint8_t nrf_hal_test() {
-	//return nrf_hal_test_rx();
-	return nrf_hal_test_tx();
-}
diff --git a/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.h b/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.h
index 65ae90c0..0ae7063b 100644
--- a/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.h
+++ b/board/Sipeed_LonganNano/eclipse/nRF24L01/nrf24l01.h
@@ -281,11 +281,62 @@ typedef struct {
 #define _BV(n) (1<<(n))
 #define _VV(v, n) ((v)<<(n))
 
-int nrf_powerup();
 
 int nrf_init(void* ni);
 
-uint8_t nrf_hal_test();
+void nrf_flush_rx();
+
+void nrf_flush_tx();
+
+void nrf_delay(uint32_t delay);
+
+int nrf_powerup();
+
+int nrf_powerdown();
+
+void nrf_enable_rx_irq();
+
+void nrf_disable_rx_irq();
+
+void nrf_enable_tx_irq();
+
+void nrf_disable_tx_irq();
+
+void nrf_enable_max_rt_irq();
+
+void nrf_disable_max_rt_irq();
+
+void nrf_set_rf_channel(uint8_t channel);
+
+int nrf_set_rxaddr(uint8_t pipe, uint8_t *addr, uint8_t addrlen);
+
+int nrf_get_rxaddr(uint8_t pipe, uint8_t *addr, uint8_t *addrlen);
+
+int nrf_set_txaddr(uint8_t *addr, uint8_t addrlen);
+
+int nrf_get_txaddr(uint8_t *addr, uint8_t *addrlen);
+
+int nrf_enable_rxaddr(uint8_t pipe);
+
+void nrf_reset_registers();
+
+void nrf_set_standby_mode();
+
+void nrf_set_receive_mode();
+
+void nrf_set_send_mode();
+
+void nrf_enable_autoack(uint8_t pipe);
+
+void nrf_disable_autoack(uint8_t pipe);
+
+void nrf_set_datarate(uint8_t dr);
+
+int nrf_enable_dynamic_payload(uint8_t pipe);
+
+int nrf_read_payload(uint8_t *buf, uint8_t *len);
+
+int nrf_write_payload(uint8_t *buf, uint8_t len);
 
 
 #endif /* NRF24L01_H_ */