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clean up

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add some doxygen work
finalize device disconnection & suspend
- suspend & resume & remote wake up is not supported yet
This commit is contained in:
hathach
2013-11-22 15:16:24 +07:00
parent d1ef89a154
commit 83f1d660ce
24 changed files with 219 additions and 236 deletions
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110
demos/device/device_os_none/.cproject
View File

@@ -1,5 +1,7 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
<?fileVersion 4.0.0?>
<cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
<storageModule moduleId="org.eclipse.cdt.core.settings">
<cconfiguration id="com.crt.advproject.config.exe.debug.856400198">
<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.crt.advproject.config.exe.debug.856400198" moduleId="org.eclipse.cdt.core.settings" name="Board LPCXpresso1347">
@@ -72,7 +74,7 @@
<option id="gnu.c.link.option.paths.1465143173" name="Library search path (-L)" superClass="gnu.c.link.option.paths"/>
<option id="gnu.c.link.option.libs.447978281" name="Libraries (-l)" superClass="gnu.c.link.option.libs"/>
<option id="com.crt.advproject.link.gcc.hdrlib.1111642583" name="Use C 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.1875369133" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
<option id="com.crt.advproject.link.gcc.multicore.slave.1875369133" name="Multicore slave" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
<inputType id="cdt.managedbuild.tool.gnu.c.linker.input.1234316494" superClass="cdt.managedbuild.tool.gnu.c.linker.input">
<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
<additionalInput kind="additionalinput" paths="$(LIBS)"/>
@@ -89,6 +91,7 @@
<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
<storageModule moduleId="scannerConfiguration"/>
</cconfiguration>
<cconfiguration id="com.crt.advproject.config.exe.debug.856400198.534940316">
<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.crt.advproject.config.exe.debug.856400198.534940316" moduleId="org.eclipse.cdt.core.settings" name="Board rf1ghznode">
@@ -177,6 +180,7 @@
<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
<storageModule moduleId="scannerConfiguration"/>
</cconfiguration>
<cconfiguration id="com.crt.advproject.config.exe.debug.856400198.1273868481">
<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.crt.advproject.config.exe.debug.856400198.1273868481" moduleId="org.eclipse.cdt.core.settings" name="Board EA4357">
@@ -253,7 +257,7 @@
<option id="gnu.c.link.option.libs.1195892209" name="Libraries (-l)" superClass="gnu.c.link.option.libs"/>
<option id="com.crt.advproject.link.gcc.hdrlib.2063456418" name="Use C 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.fpu.764700776" name="Floating point" superClass="com.crt.advproject.link.fpu" value="com.crt.advproject.link.fpu.fpv4" valueType="enumerated"/>
<option id="com.crt.advproject.link.gcc.multicore.slave.1805648374" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
<option id="com.crt.advproject.link.gcc.multicore.slave.1805648374" name="Multicore slave" superClass="com.crt.advproject.link.gcc.multicore.slave"/>
<inputType id="cdt.managedbuild.tool.gnu.c.linker.input.1656058909" superClass="cdt.managedbuild.tool.gnu.c.linker.input">
<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
<additionalInput kind="additionalinput" paths="$(LIBS)"/>
@@ -270,6 +274,7 @@
<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
<storageModule moduleId="scannerConfiguration"/>
</cconfiguration>
<cconfiguration id="com.crt.advproject.config.exe.debug.856400198.2062223128">
<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.crt.advproject.config.exe.debug.856400198.2062223128" moduleId="org.eclipse.cdt.core.settings" name="Board LPCXpresso1769">
@@ -358,6 +363,7 @@
<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
<storageModule moduleId="scannerConfiguration"/>
</cconfiguration>
</storageModule>
<storageModule moduleId="cdtBuildSystem" version="4.0.0">
@@ -366,53 +372,73 @@
<storageModule moduleId="com.crt.config">
<projectStorage>&lt;?xml version="1.0" encoding="UTF-8"?&gt;&#13;
&lt;TargetConfig&gt;&#13;
&lt;Properties property_0="" property_2="LPC11_12_13_64K_8K.cfx" property_3="NXP" property_4="LPC1347" property_count="5" version="60000"/&gt;&#13;
&lt;infoList vendor="NXP"&gt;&#13;
&lt;info chip="LPC1347" flash_driver="LPC11_12_13_64K_8K.cfx" match_id="0x08020543" name="LPC1347" stub="crt_emu_lpc11_13_nxp"&gt;&#13;
&lt;chip&gt;&#13;
&lt;name&gt;LPC1347&lt;/name&gt;&#13;
&lt;family&gt;LPC13xx (12bit ADC)&lt;/family&gt;&#13;
&lt;Properties property_0="" property_3="NXP" property_4="LPC1769" property_count="5" version="1"/&gt;&#13;
&lt;infoList vendor="NXP"&gt;&lt;info chip="LPC1769" match_id="0x26113F37" name="LPC1769" package="lpc17_lqfp100.xml"&gt;&lt;chip&gt;&lt;name&gt;LPC1769&lt;/name&gt;&#13;
&lt;family&gt;LPC17xx&lt;/family&gt;&#13;
&lt;vendor&gt;NXP (formerly Philips)&lt;/vendor&gt;&#13;
&lt;reset board="None" core="Real" sys="Real"/&gt;&#13;
&lt;clock changeable="TRUE" freq="12MHz" is_accurate="TRUE"/&gt;&#13;
&lt;clock changeable="TRUE" freq="20MHz" is_accurate="TRUE"/&gt;&#13;
&lt;memory can_program="true" id="Flash" is_ro="true" type="Flash"/&gt;&#13;
&lt;memory id="RAM" type="RAM"/&gt;&#13;
&lt;memory id="Periph" is_volatile="true" type="Peripheral"/&gt;&#13;
&lt;memoryInstance derived_from="Flash" id="MFlash64" location="0x0" size="0x10000"/&gt;&#13;
&lt;memoryInstance derived_from="RAM" id="RamLoc8" location="0x10000000" size="0x2000"/&gt;&#13;
&lt;memoryInstance derived_from="RAM" id="RamUsb2" location="0x20004000" size="0x800"/&gt;&#13;
&lt;memoryInstance derived_from="RAM" id="RamPeriph2" location="0x20000000" size="0x800"/&gt;&#13;
&lt;prog_flash blocksz="0x1000" location="0x0" maxprgbuff="0x1000" progwithcode="TRUE" size="0x10000"/&gt;&#13;
&lt;peripheralInstance derived_from="V7M_MPU" determined="infoFile" id="MPU" location="0xe000ed90"/&gt;&#13;
&lt;peripheralInstance derived_from="V7M_NVIC" determined="infoFile" id="NVIC" location="0xe000e000"/&gt;&#13;
&lt;peripheralInstance derived_from="V7M_DCR" determined="infoFile" id="DCR" location="0xe000edf0"/&gt;&#13;
&lt;peripheralInstance derived_from="V7M_ITM" determined="infoFile" id="ITM" location="0xe0000000"/&gt;&#13;
&lt;peripheralInstance derived_from="I2C" determined="infoFile" id="I2C" location="0x40000000"/&gt;&#13;
&lt;peripheralInstance derived_from="WWDT" determined="infoFile" id="WWDT" location="0x40004000"/&gt;&#13;
&lt;peripheralInstance derived_from="CT16B0" determined="infoFile" id="CT16B0" location="0x4000c000"/&gt;&#13;
&lt;peripheralInstance derived_from="CT16B1" determined="infoFile" id="CT16B1" location="0x40010000"/&gt;&#13;
&lt;peripheralInstance derived_from="CT32B0" determined="infoFile" id="CT32B0" location="0x40014000"/&gt;&#13;
&lt;peripheralInstance derived_from="CT32B1" determined="infoFile" id="CT32B1" location="0x40018000"/&gt;&#13;
&lt;peripheralInstance derived_from="USART" determined="infoFile" id="USART" location="0x40008000"/&gt;&#13;
&lt;peripheralInstance derived_from="ADC" determined="infoFile" id="ADC" location="0x4001c000"/&gt;&#13;
&lt;peripheralInstance derived_from="PMU" determined="infoFile" id="PMU" location="0x40038000"/&gt;&#13;
&lt;peripheralInstance derived_from="FLASHCTRL" determined="infoFile" id="FLASHCTRL" location="0x4003c000"/&gt;&#13;
&lt;peripheralInstance derived_from="SSP0" determined="infoFile" id="SSP0" location="0x40040000"/&gt;&#13;
&lt;peripheralInstance derived_from="IOCON" determined="infoFile" id="IOCON" location="0x40044000"/&gt;&#13;
&lt;peripheralInstance derived_from="SYSCON" determined="infoFile" id="SYSCON" location="0x40048000"/&gt;&#13;
&lt;peripheralInstance derived_from="GPIO-PIN-INT" determined="infoFile" id="GPIO-PIN-INT" location="0x4004c000"/&gt;&#13;
&lt;peripheralInstance derived_from="SSP1" determined="infoFile" id="SSP1" location="0x40058000"/&gt;&#13;
&lt;peripheralInstance derived_from="GPIO-GROUP-INT0" determined="infoFile" id="GPIO-GROUP-INT0" location="0x4005c000"/&gt;&#13;
&lt;peripheralInstance derived_from="GPIO-GROUP-INT1" determined="infoFile" id="GPIO-GROUP-INT1" location="0x40060000"/&gt;&#13;
&lt;peripheralInstance derived_from="RITIMER" determined="infoFile" id="RITIMER" location="0x40064000"/&gt;&#13;
&lt;peripheralInstance derived_from="USB" determined="infoFile" id="USB" location="0x40080000"/&gt;&#13;
&lt;peripheralInstance derived_from="GPIO-PORT" determined="infoFile" id="GPIO-PORT" location="0x50000000"/&gt;&#13;
&lt;memoryInstance derived_from="Flash" id="MFlash512" location="0x0" size="0x80000"/&gt;&#13;
&lt;memoryInstance derived_from="RAM" id="RamLoc32" location="0x10000000" size="0x8000"/&gt;&#13;
&lt;memoryInstance derived_from="RAM" id="RamAHB32" location="0x2007c000" size="0x8000"/&gt;&#13;
&lt;prog_flash blocksz="0x1000" location="0" maxprgbuff="0x1000" progwithcode="TRUE" size="0x10000"/&gt;&#13;
&lt;prog_flash blocksz="0x8000" location="0x10000" maxprgbuff="0x1000" progwithcode="TRUE" size="0x70000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_NVIC" id="NVIC" location="0xE000E000"/&gt;&#13;
&lt;peripheralInstance derived_from="TIMER" enable="SYSCTL.PCONP.PCTIM0&amp;amp;0x1" id="TIMER0" location="0x40004000"/&gt;&#13;
&lt;peripheralInstance derived_from="TIMER" enable="SYSCTL.PCONP.PCTIM1&amp;amp;0x1" id="TIMER1" location="0x40008000"/&gt;&#13;
&lt;peripheralInstance derived_from="TIMER" enable="SYSCTL.PCONP.PCTIM2&amp;amp;0x1" id="TIMER2" location="0x40090000"/&gt;&#13;
&lt;peripheralInstance derived_from="TIMER" enable="SYSCTL.PCONP.PCTIM3&amp;amp;0x1" id="TIMER3" location="0x40094000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_RIT" enable="SYSCTL.PCONP.PCRIT&amp;amp;0x1" id="RIT" location="0x400B0000"/&gt;&#13;
&lt;peripheralInstance derived_from="FGPIO" enable="SYSCTL.PCONP.PCGPIO&amp;amp;0x1" id="GPIO0" location="0x2009C000"/&gt;&#13;
&lt;peripheralInstance derived_from="FGPIO" enable="SYSCTL.PCONP.PCGPIO&amp;amp;0x1" id="GPIO1" location="0x2009C020"/&gt;&#13;
&lt;peripheralInstance derived_from="FGPIO" enable="SYSCTL.PCONP.PCGPIO&amp;amp;0x1" id="GPIO2" location="0x2009C040"/&gt;&#13;
&lt;peripheralInstance derived_from="FGPIO" enable="SYSCTL.PCONP.PCGPIO&amp;amp;0x1" id="GPIO3" location="0x2009C060"/&gt;&#13;
&lt;peripheralInstance derived_from="FGPIO" enable="SYSCTL.PCONP.PCGPIO&amp;amp;0x1" id="GPIO4" location="0x2009C080"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_I2S" enable="SYSCTL.PCONP&amp;amp;0x08000000" id="I2S" location="0x400A8000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_SYSCTL" id="SYSCTL" location="0x400FC000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_DAC" enable="PCB.PINSEL1.P0_26&amp;amp;0x2=2" id="DAC" location="0x4008C000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17xx_UART" enable="SYSCTL.PCONP.PCUART0&amp;amp;0x1" id="UART0" location="0x4000C000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17xx_UART_MODEM" enable="SYSCTL.PCONP.PCUART1&amp;amp;0x1" id="UART1" location="0x40010000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17xx_UART" enable="SYSCTL.PCONP.PCUART2&amp;amp;0x1" id="UART2" location="0x40098000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17xx_UART" enable="SYSCTL.PCONP.PCUART3&amp;amp;0x1" id="UART3" location="0x4009C000"/&gt;&#13;
&lt;peripheralInstance derived_from="SPI" enable="SYSCTL.PCONP.PCSPI&amp;amp;0x1" id="SPI" location="0x40020000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_SSP" enable="SYSCTL.PCONP.PCSSP0&amp;amp;0x1" id="SSP0" location="0x40088000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_SSP" enable="SYSCTL.PCONP.PCSSP1&amp;amp;0x1" id="SSP1" location="0x40030000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_ADC" enable="SYSCTL.PCONP.PCAD&amp;amp;0x1" id="ADC" location="0x40034000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_USBINTST" enable="USBCLKCTL.USBClkCtrl&amp;amp;0x12" id="USBINTSTAT" location="0x400fc1c0"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_USB_CLK_CTL" id="USBCLKCTL" location="0x5000cff4"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_USBDEV" enable="USBCLKCTL.USBClkSt&amp;amp;0x12=0x12" id="USBDEV" location="0x5000C200"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_PWM" enable="SYSCTL.PCONP.PWM1&amp;amp;0x1" id="PWM" location="0x40018000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_I2C" enable="SYSCTL.PCONP.PCI2C0&amp;amp;0x1" id="I2C0" location="0x4001C000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_I2C" enable="SYSCTL.PCONP.PCI2C1&amp;amp;0x1" id="I2C1" location="0x4005C000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_I2C" enable="SYSCTL.PCONP.PCI2C2&amp;amp;0x1" id="I2C2" location="0x400A0000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_DMA" enable="SYSCTL.PCONP.PCGPDMA&amp;amp;0x1" id="DMA" location="0x50004000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_ENET" enable="SYSCTL.PCONP.PCENET&amp;amp;0x1" id="ENET" location="0x50000000"/&gt;&#13;
&lt;peripheralInstance derived_from="CM3_DCR" id="DCR" location="0xE000EDF0"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_PCB" id="PCB" location="0x4002c000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_QEI" enable="SYSCTL.PCONP.PCQEI&amp;amp;0x1" id="QEI" location="0x400bc000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_USBHOST" enable="USBCLKCTL.USBClkSt&amp;amp;0x11=0x11" id="USBHOST" location="0x5000C000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_USBOTG" enable="USBCLKCTL.USBClkSt&amp;amp;0x1c=0x1c" id="USBOTG" location="0x5000C000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_RTC" enable="SYSCTL.PCONP.PCRTC&amp;amp;0x1" id="RTC" location="0x40024000"/&gt;&#13;
&lt;peripheralInstance derived_from="MPU" id="MPU" location="0xE000ED90"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC1x_WDT" id="WDT" location="0x40000000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_FLASHCFG" id="FLASHACCEL" location="0x400FC000"/&gt;&#13;
&lt;peripheralInstance derived_from="GPIO_INT" id="GPIOINTMAP" location="0x40028080"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_CANAFR" enable="SYSCTL.PCONP.PCCAN1&amp;amp;0x1|SYSCTL.PCONP.PCCAN2&amp;amp;0x1" id="CANAFR" location="0x4003C000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_CANCEN" enable="SYSCTL.PCONP.PCCAN1&amp;amp;0x1|SYSCTL.PCONP.PCCAN2&amp;amp;0x1" id="CANCEN" location="0x40040000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_CANWAKESLEEP" id="CANWAKESLEEP" location="0x400FC110"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_CANCON" enable="SYSCTL.PCONP.PCCAN1&amp;amp;0x1" id="CANCON1" location="0x40044000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_CANCON" enable="SYSCTL.PCONP.PCCAN2&amp;amp;0x1" id="CANCON2" location="0x40048000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_MCPWM" enable="SYSCTL.PCONP.PCMCPWM&amp;amp;0x1" id="MCPWM" location="0x400B8000"/&gt;&#13;
&lt;peripheralInstance derived_from="LPC17_FMC" id="FMC" location="0x40084000"/&gt;&#13;
&lt;/chip&gt;&#13;
&lt;processor&gt;&#13;
&lt;name gcc_name="cortex-m3"&gt;Cortex-M3&lt;/name&gt;&#13;
&lt;processor&gt;&lt;name gcc_name="cortex-m3"&gt;Cortex-M3&lt;/name&gt;&#13;
&lt;family&gt;Cortex-M&lt;/family&gt;&#13;
&lt;/processor&gt;&#13;
&lt;link href="nxp_lpc13Uxx_peripheral.xme" show="embed" type="simple"/&gt;&#13;
&lt;link href="nxp_lpcxxxx_peripheral.xme" show="embed" type="simple"/&gt;&#13;
&lt;/info&gt;&#13;
&lt;/infoList&gt;&#13;
&lt;/TargetConfig&gt;</projectStorage>

10
demos/device/device_os_none/tusb_descriptors.c
View File

@@ -400,10 +400,12 @@ app_descriptor_configuration_t app_tusb_desc_configuration =
//--------------------------------------------------------------------+
// STRING DESCRIPTORS
//--------------------------------------------------------------------+
#define STRING_LEN_UNICODE(n) (2 + (2*(n))) // also includes 2 byte header
ATTR_USB_MIN_ALIGNMENT TUSB_CFG_ATTR_USBRAM
tusb_descriptor_string_t desc_str_language =
{
.bLength = 2 + 1*2,
.bLength = STRING_LEN_UNICODE(1),
.bDescriptorType = TUSB_DESC_TYPE_STRING,
.unicode_string = { 0x0409 }
};
@@ -411,7 +413,7 @@ tusb_descriptor_string_t desc_str_language =
ATTR_USB_MIN_ALIGNMENT TUSB_CFG_ATTR_USBRAM
tusb_descriptor_string_t desc_str_manufacturer =
{
.bLength = 2 + 11*2,
.bLength = STRING_LEN_UNICODE(11),
.bDescriptorType = TUSB_DESC_TYPE_STRING,
.unicode_string = { 't', 'i', 'n', 'y', 'u', 's', 'b', '.', 'o', 'r', 'g' } // len = 11
};
@@ -419,7 +421,7 @@ tusb_descriptor_string_t desc_str_manufacturer =
ATTR_USB_MIN_ALIGNMENT TUSB_CFG_ATTR_USBRAM
tusb_descriptor_string_t desc_str_product =
{
.bLength = 2 + 14*2,
.bLength = STRING_LEN_UNICODE(14),
.bDescriptorType = TUSB_DESC_TYPE_STRING,
.unicode_string = { 'D', 'e', 'v', 'i', 'c', 'e', ' ', 'E', 'x', 'a', 'm', 'p', 'l', 'e' } // len = 14
};
@@ -427,7 +429,7 @@ tusb_descriptor_string_t desc_str_product =
ATTR_USB_MIN_ALIGNMENT TUSB_CFG_ATTR_USBRAM
tusb_descriptor_string_t desc_str_serial =
{
.bLength = 2 + 4*2,
.bLength = STRING_LEN_UNICODE(4),
.bDescriptorType = TUSB_DESC_TYPE_STRING,
.unicode_string = { '1', '2', '3', '4' } // len = 4
};