Vonger Electronic Technology VOCOREV2 VoCore2 User Manual

Vonger Electronic Technology Co.,Ltd. VoCore2

User manual

VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 1/11
VoCore2
TheCoinsizedLinuxComputer
VoCore2+USBHeader(PowerSupplyOnly)
VoCore2+MicroSD
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 2/11
VoCore2+USBHeader+MicroSD
note:DDR2isESDsencitive,bettertousehotairsolderwithouttouch
Parameters
Details
SIZE 25.6mmx25.6mmx3.0mm
CPU MT7628AN,580MHz,MIPS24K
MEMORY 128MB,DDR2,166MHz
STORAGE 16MNORonboard,supportSDXCupto2TB
WIRELESS 802.11n,2T2R,speedupto300Mbps.
ANTENNA OneU.FLslot,oneonboardantenna.
ETHERNET 1port/5ports,upto100Mbps.
USB SupportUSB2.0,upto480MBit/s.
GPIO around40(pinmux)
UART x3(UART2fordebugconsole)
PWM x4
TEMPERATURE 0~40C,indooronly
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 3/11
Details
POWERSUPPLY 3.6V~6.0V,500mA
POWERCONSUMPTION 74mAwifistandby,230mAwififullspeed,5Vinput.
Sources
Hardware:Download(http://vonger.cn/misc/vocore2/source.zip) md5:710ce05e5f95076b5e42b2feaf8a4de4
OpenWrt1505:Download(http://vonger.cn/misc/vocore2/openwrt.tar.bz2) md5:613621b833102e7ccde7b50c5f5ef6a7
MediaTekSDK:Download(http://vonger.cn/misc/vocore2/mtksdkopenwrt3.10.142014112730965ec3.tar.bz2) md5:4591c418ba6599920337859633d2aa18
UBoot:Download(Github)(https://github.com/Vonger/DasUboot)
WiFiDriver:Download(Github)(https://github.com/Vonger/vocore2) supportlatestopenwrt
Downloads
note:normally,weupgradeorfixbrickareusingFirmware.FlashImageisacloneofthefullflash,forprofessionalusageonly.
Firmware(128MB):Download(http://vonger.cn/misc/vocore2/20170527V.bin) md5:6f7c4b019577a7cec077562b75bc838b
Firmware(64MB,forLite):Download(http://vonger.cn/misc/vocore2/20170211L.bin)md5:2162ef05b5232154d4f20dee57561da7
FlashImage:Download(http://vonger.cn/misc/vocore2/ultimate.16m.img) md5:f4c527a1e563d0ad7ef9ab0b5e0b35c6
Toolchain:Download(Ubuntu14.04x64)(http://vonger.cn/misc/vocore2/toolchain.tar.bz2)
UBoot:Download(http://vonger.cn/misc/vocore2/uboot.20180427.bin) md5:47166dd2acae029b072ad7fe735c7bc9
Datasheet:Download(http://vonger.cn/misc/vocore2/datasheet.zip)
Links
VoCore2+Dock(v2u.html)Ultimateversionmakesiteasytouse.
VoCoreCamera(camera.html)Tinycamerasupportsh264+microphone.
Details
VoCore2isasuccessorofVoCore,makeitmorefast,stable,butstillsamesize.
pinidissameastheoneonMT76x8datasheetinsource
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 4/11
pinidissameastheoneonMT76x8datasheetinsource
Left Name Mux Note
+3.3VO +3.3Voutput maxoutputcurrent100mA
30 TXD0 GPIO12,UART0LiteTXD 3.3V
31 RXD0 GPIO13,UART0LiteRXD 3.3V
29 REFCLK GPIO11,referenceclock,SDXCCLK*
33 P0RP 10/100PHYPort#0RXP
34 P0RN 10/100PHYPort#0RXN
35 P0TP 10/100PHYPort#0TXP
36 P0TN 10/100PHYPort#0TXN
43 TXD2 10/100PHYPort#1TXN,GPIO15,PWMChannel,SPISlaveClock
44 RXD2 10/100PHYPort#1TXP,GPIO14,PWMChannel,SPISlaveChipSelect
40 PWM0 10/100PHYPort#1RXN,GPIO17,UART2LiteTXD,SPISlaveMOSI 4.7KpulldowntoGND
42 PWM1 10/100PHYPort#1RXP,GPIO16,UART2LiteRXD,SPISlaveMISO
45 P2RP 10/100PHYPort#2RXP,GPIO18,PWMChannel
46 P2RN 10/100PHYPort#2RXN,GPIO19,PWMChannel
47 P2TP 10/100PHYPort#2TXP,GPIO20,PWMChannel
48 P2TN 10/100PHYPort#2TXN,GPIO21,PWMChannel
49 SDWP GPIO22,10/100PHYPort#3TXP,SDXCWP
50 SDCD GPIO23,10/100PHYPort#3TXN,SDXCCD
Top Name Mux Note
GND Groud
28 SPICS0 GPIO10,SPIMasterChipSelect0 4.7Kpullupto3.3V
25 SPICLK GPIO7,SPIMasterClock 4.7Kpullupto3.3V
26 SPIMISO GPIO9,SPIMasterInSlaveOut
27 SPIMOSI GPIO8,SPIMasterOutSlaveIn 4.7KpulldowntoGND
24 SPICS1 GPIO6,SPIMasterChipSelect1 4.7KpulldowntoGND
21 I2CSD GPIO5,I2CData,SDXCD2* 4.7Kpullupto3.3V
20 I2CCLK GPIO4,I2CClock,SDXCD3* 4.7Kpullupto3.3V
19 I2SCLK GPIO3,I2SBitClock,SDXCCMD*
18 I2SWS GPIO2,I2SL/RClock,SDXCD0*
16 I2SSDI GPIO0,I2SDataIn,SDXCD1*
17 I2SSDO GPIO1,I2SDataOut 4.7KpulldowntoGND
Right Name Mux Note
GND Ground
148 RXD1 GPIO12,UART1LiteRXD 3.3V
147 TXD1 GPIO13,UART1LiteTXD 3.3V
141 GPIO41 GPIO41,JTAGTMS JTAGneeds10Kpullup,R9>R6
140 GPIO40 GPIO40,JTAGClock JTAGneeds10Kpullup,R9>R6
139 GPIO39 GPIO39,JTAGReset JTAGneeds10Kpullup,R9>R6
143 GPIO43 GPIO43,JTAGTDO JTAGneeds10Kpullup,R9>R6
142 GPIO42 GPIO42,JTAGTDI JTAGneeds10Kpullup,R9>R6
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 5/11
Right Name Mux Note
138 RST Reset,touchGNDtoreset
137 GPIO38 GPIO38
136 GPIO37 GPIO37
+3.3VO +3.3Voutput maxoutputcurrent100mA
GND Ground
GND Ground
+1.8VO +1.8Voutput maxoutputcurrent100mA
Bottom Name Mux Note
GND Ground
51 SDD1 GPIO24,10/100PHYPort#3RXP,SDXCD1
52 SDD0 GPIO25,10/100PHYPort#3RXN,SDXCD0
54 SDCLK GPIO26,10/100PHYPort#4RXP,SDXCCLK
55 SDCMD GPIO27,10/100PHYPort#4RXN,SDXCCMD
56 SDD3 GPIO28,10/100PHYPort#4TXP,SDXCD3
57 SDD2 GPIO29,10/100PHYPort#4TXN,SDXCD2
+3.3VO +3.3Voutput maxoutputcurrent100mA
61 USBDP USB2.0Data+
62 USBDM USB2.0Data
+5.0VI +5.0Vinput mininputcurrent500mA
+5.0VI +5.0Vinput mininputcurrent500mA
GND Ground
GND Ground
Middle Name Mux Note
133 PCICKP PCIExpressExternalReferenceClockOutput+
132 PCICKN PCIExpressExternalReferenceClockOutput
130 PCIRXN PCIExpressDifferentialReceiverRX
129 PCIRXP PCIExpressDifferentialReceiverRX+
GND Ground
127 PCITXP PCIExpressDifferentialTransmitTX+
126 PCITXN PCIExpressDifferentialTransmitTX
135 PCIRST PCIExpressDeviceReset
*fiveethernetportmode,sdcardmuxtoi2s/i2c.
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 6/11
Tutorials
ConnecttoPower
1. connectto3.6V~6.0VandGNDwithastablepowersource,suchasUSBcharger.
note:becareful,highvoltagewilldamageyourVoCore.
2. ifeverythingworks,after30seconds,youwillfindVoCore2inyourcomputerhotspotlist.
3. connecttoVoCore2hotspot.
4.ausingsshorputtyorsimilartoolslogintoVoCore2(root/vocore).
4.busingUSB2TTL,pleasecheck"ConnecttoVoCorethroughUSB2TTL"section.
important: UARTspeedis115200bps,8bits,noeven,1stopbit
ConnecttoVoCorethroughUSB2TTL
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 7/11
videotutorial:youtube(https://youtu.be/W3UVXb5YM2k)
1. connectUSB2TTL.TXDtoVoCore2.RXD2,USB2TTL.RXDtoVoCore2.TXD2,USB2TTL.GNDtoVoCore2.GND.
2. setupyourserialapplication(suchasputtyforwindows,kermitformac,linux)inyourcomputerto115200bps,8databits,noeven,1stopbit.
3. poweronyourVoCore2,noyoushouldfindsometextoutput.
SetupAP+STAMode
videotutorial(requireUSB2TTL):youtube(https://youtu.be/IPt5cxg5K98)
1. connecttoyourVoCorethroughUSB2TTL.
2. runcommandinconsole(UARTconsole).
3. setupnetworktoenabledhcp(getipfromyourhotspot).
ucideletenetwork.wwan
ucisetnetwork.wwan=interface
ucisetnetwork.wwan.proto=dhcp
ucicommit
4. setupfirewalltoenableaccesstointernetthroughyourhotspot.
ucidel_listfirewall.@zone[1].network=wwan
uciadd_listfirewall.@zone[1].network=wwan
ucisetfirewall.@zone[1].input=ACCEPT
ucisetfirewall.@zone[1].output=ACCEPT
ucisetfirewall.@zone[1].forward=ACCEPT
ucisetfirewall.@zone[1].masq=1
ucisetfirewall.@zone[1].mtu_fix=1
ucicommit
5. setupwirelesstoenableap+stamode.
ucisetwireless.sta.ssid="[TARGETAPSSID]"
ucisetwireless.sta.key="[TARGETAPPASSWORD]"
ucisetwireless.sta.network=wwan
ucisetwireless.sta.disabled=0
ucicommit
note:replace[TARGETAPSSID]tothetargetapssidyouwanttoconnectto,[TARGETAPPASSWORD]isitspassword.
5. restartyournetwork,itwillwork.
/etc/init.d/networkrestart
6.(option)onceap+staistotallyup,disableitinconfig,soifnexttimeyourtargetapismissing,youstillabletoconnecttoVoCore2.
ucisetwireless.sta.disabled=0
ucicommit
/etc/init.d/networkrestart
sleep10
ucisetwireless.sta.disabled=1
ucicommit
note:bettercopythethreelinesto/etc/rc.local
UpgradeVoCore2Firmware
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 8/11
UpgradeVoCore2Firmware
1. downloadthelatestfirmware(nottheflashimage)inthispageDownloadsection.
2. connecttoyourVoCorehotspot,openbrowserview192.168.1.1or192.168.61.1.
3. LuCIconsoleusingusername:root,password:vocore,clickon"Login"(picturepart1).
4. select"System">"Backup/FlashFirmware"(picturepart2).
5. clickon"ChooseFile",chooseyourdownloadedfirmware(again,nottheflashimage,picturepart3),thenclick"FlashImage".
6. itwilluploadthefirmwaretoyourVoCore2,takesafewseconds,checkifthemd5matched.(picturepart4)
7. ifeverythingok,press"Process".
8. normallyitwilltake2~3minutes,pleasewaituntilitisready.
note:ifpowercutoffduringtheupgradeprocess,yourVoCore2willbrick,check"FixBrickedVoCore2"
CompileOpenWRTforVoCore2
videotutorial:youtube(https://youtu.be/ocl6yFtKSNs)
1. installUbuntu14.0464bitServertoVirtualMachine.
2. invirtualbox,wewillneedinstallsomepackagestocompileopenwrt:
sudoaptgetinstallgccg++binutilspatchbzip2flexbisonmakeautoconfgettexttexinfounzipsharutilssubversionlibncurses5devncursestermzlib1gdevlibssl
devpython
3. downloadopenwrtat"Sources"sectioninthispage,softwarepart.
4. call"tarjxvfopenwrt.tar.bz2"touncompressthepackage.
5. call"makemenuconfig"intheopenwrtfolder,configureopenwrtinmenu,chooseMT7688/28/VoCore2inmenu.
6. call"make"intheopenwrtfolder,startthemakeprocess
CompileyourAppforVoCore2
1. compileopenwrtforVoCore2,itwillcreatetoolchainordownloaditatDownloads/Toolchain(forUbuntu14.0464bit).
2. makeasimplecodeinC,compileitincommandline.
/path.to.your.toolchain/bin/mipsel‐openwrt‐linux‐gcc‐gyourcode.c‐oyourcode
3. afterthis,youwillgetanexecutablefilenamed"yourcode",usescp,copyittoyourVoCore2
4. inVoCore2,call chmod+xyourcode ,afterthat,youcanrunitinVoCore2,call ./yourcode
UploadFirmware
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 9/11
UploadFirmware
1. uploadfirmwarethroughluci,pleaseread"UpgradeFirmware"section.
2. uploadfirmwarethroughconsole,connectedtoVoCorehotspot.
(1) copyfrompctoVoCore[operateinPC]:scp[yourfirmware].binroot@192.168.61.1:/tmp/vocore2.bin
hereistwochoices,2.awillerasealldata/configyouwritetoVoCore,2.bjustupgradethefirmwarebutkeepthem.
(2.a)writetoVoCorenorflash[operateinVoCore]:mtdefirmwarewrite/tmp/vocore2.binfirmware
(2.b)systemupgradeVoCorenorflash[operateinVoCore]:sysupgrade/tmp/vocore2.binfirmware
(3) waituntilmtddone,rebootyourVoCore.
note:ifyouwantsetyourVoCorebacktofirsttimebootup,call"firstboot"inconsole.
FixBrickedVoCore2(ubootalive)
1. connectyourVoCore2tocomputerthroughUSB2TTL(UART2RXD2+TXD2+GND).
2. openttytools(musthavekermitprotocol),suchaskermit,ckermit.
3. powerupyourVoCore,onceyoufind:"0:LoadsystemcodethenwritetoFlashviaSERIAL.",press'0'.
note:VoCorewillshow"##Readyforbinary(kermit)downloadto0x80100000at115200bps..."
note:kermit:pressCtrland'\'sametimethenpress'c',youwillswitchtokermitcommandconsole.
5. sendupgradefirmwaretoVoCore,afterthat,backtoVoCoreubootconsole.
note:kermit:call"sendpath/to/your/upgrade/file/on/pc.bin"tosendfirmware,around10minutes,onceitfinished,call'c'backtoconsole.
6. waitaround20~30seconds,firmwareuploaded,yourVoCorewillreboot.
FixBrickedVoCore2(ubootdead)
1. YoumusthaveanotherVoCore/VoCore2oroneflashloaderandsixwires.
2.1usinganotherVoCore/VoCore2torecoveryourbrickedVoCore2.
2.1checkbloghttp://vonger.cn/?p=8054.
2.2usingflashloadertorecoveryourbrickedVoCore2.
2.2.adisconnectVoCore2frompower;
2.2.bconnectVoCore2GNDtoflashloaderGND;
2.2.cVoCore2+3.3Vtoflashloader+3.3V;
2.2.dVoCore2SPIMISO>flashloaderSPIMISO;
2.2.eVoCore2SPIMOSI>flashloaderSPIMOSI;
2.2.gVoCore2SPICS0>flashloaderSPICS;
2.2.hVoCore2SPICLK>flashloaderSPICLOCK;
2.2.iVoCore2RST>VoCore2GND;(keepVoCore2inresetmode)
note:ifnotwork,swapMISO/MOSI.
2.2.jnow,downloadthensend"FlashImage"toVoCore2.2.
2.2.kremovewires,connectVoCore2backtopower,everythingshouldbacknormal.
3. option:bettertoupgradeyourfirmwareafterrecover,FlashImageisoutofdate.
Recoverfactorysetting
Sometimes,wemightmessthefactorysettingsectiononVoCore2flash(addresscanbefindby"cat/proc/mtd"),thatwillcausewifidriverfailedtostart.Torecoverit,
weneedthefollowingsteps:
VoCore2|CoinsizedLinuxComputer
http://vocore.io/v2.html 10/11
1. getintoVoCoreconsole,byehternetorserialport(TTL).
2. copymt7628.sh(http://vonger.cn/misc/vocore2/tools/mt7628.sh)toyourVoCore2/tmp,ordirectlycopythetxtinthescriptandruninconsole.
3. runmt7628.shby"sh/tmp/mt7628.sh",thenreboot.
note:yourmacaddresswillbefixedtob8:d8:12:67:01:73,youcanchangethistomodifyyourVoCore2macaddress.
UpdateUBOOTfromserialport
1. rebootvocore2atserialconsole,check"ConnecttoVoCorethroughUSB2TTL"
2. oncereboot,itwillshow"7:LoadBootLoadercodethenwritetoFlashviaSerial.",nowwearereadytosendthedata.
3. usekermitorcompatibletoolssenduboot.bin,uboot.bincanbegetfromfromDownloadsection.
4. waituntilitreboot.
Directlywritetomemory/register
Wemadeasimpletoolforthis,downloadhere(http://vonger.cn/misc/vocore2/tools/mem.zip),itsnameis"mem",puttheexecutablefileinto/bin/inVoCore2.
1. readfromregister/memory,forexample:0x10000060,pincontrolregister
example: mem0x10000060
2. writetoregister/memory,mustin32bits(4bytes)
example: mem0x100000640x05540555
hereisanexamplebashscriptflashtheLEDeverysecondonVoCore2
mem0x100000640x05540555;mem0x100006040x1000;while[1];domem0x100006340x1000;sleep1;mem0x100006440x1000;sleep1;done
MountVoCore2ontocustomizedPCB(ASMT)
1. oncustomizedPCB,suggestkeeping16mmx16mmrectangleclearance(nocopper)forbettersignalonboardantenna.
2. suggestusinghotairinsteadofiron,DDR2isaESDsencetivepart,mightcausepermanentdamage.
3. mustusemiddleleveltempraturepaste(180C,SnBiAg)orlowerone,VoCore2isusinghightempraturepaste(220C,SnCuAg),sametempraturelevelmight
causedamagetoVoCore.
VoCoreStudio©20142016·Contactus:support@vocore.io(mailto:support@vocore.io)
FCC Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
NOTE: this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
● Reorient of relocate the receiving antenna.
● Increase the separation between the equipment and receiver.
● Connect the equipment into an outlet on a circuit difference from that to which the receiver is connected.
● Consult the dealer or an experienced radio/TV technician for help.
Important Note:
Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20 cm between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Country Code selection feature to be disabled for products marketed to the US/Canada.
1. The antenna must be installed such that 20 cm is maintained between the antenna and users, and
2. The transmitter module may not be co-located with any other transmitter or antenna.
As long as the three conditions above are met, further transmitter testing will not be required. However, the OEM
integrator is still responsible for testing their end-product for any additional compliance requirements required with
this module installed.
Important Note:
In the event that these conditions cannot be met (for example certain laptop configurations or co-location with
another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used
on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end
product (including the transmitter) and obtaining a separate FCC authorization.
Any company of the host device which install this modular with limit modular approval should perform the test
of radiated emission and spurious emission according to FCC part 15C:15.247 and 15.209 requirement, only if
the test result comply with FCC part 15.247 and 15.209 requirement, then the host can be sold legally.
End Product Labeling:
The final end product must be labeled in a visible area with the following “Contains FCC ID: 2AC4RVOCOREV2”
Manual Information to the End User:
The OEM integrator has to be aware not to provide information to the end user regarding how to install or
remove this RF module in the user’s manual of the end product which integrates this module.
The end user manual shall include all required regulatory information/warning as show in this manual.
The modular is not intended to be fielded serviceable as without shielding, host manufacturer must be
considered shielding when integrating a module.
When the module is installed inside another device, the user manual of this device must contain below warning
statements;
1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause
undesired operation.
2. Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment. The devices must be installed and used in strict
accordance with the manufacturer's instructions as described in the user documentation that comes
with the product.

Navigation menu