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| inbox:toh:comfast:cf-ew72_v2 [2023/08/23 11:38] – [Hardware highlights] filimonic | inbox:toh:comfast:cf-ew72_v2 [2023/08/24 10:22] – [Serial] filimonic | ||
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| <WRAP important 60%> | <WRAP important 60%> | ||
| + | {{ : | ||
| COMFAST CF-EW72 **without version** is completely different device. | COMFAST CF-EW72 **without version** is completely different device. | ||
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| + | |||
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| Please, look for **__Model__** at the label on your device. If it says **__CF-EW72 V2__**, you should proceed with this page. | Please, look for **__Model__** at the label on your device. If it says **__CF-EW72 V2__**, you should proceed with this page. | ||
| If there is no **__V2__** you should proceed to [[toh: | If there is no **__V2__** you should proceed to [[toh: | ||
| Line 60: | Line 64: | ||
| ^ CPU ^ Ram ^ Flash ^ Network | ^ CPU ^ Ram ^ Flash ^ Network | ||
| | Mediatek MT7621(AT or DAT) 880 MHz | 128 MiB | 16 MiB | 2x 10/ | | Mediatek MT7621(AT or DAT) 880 MHz | 128 MiB | 16 MiB | 2x 10/ | ||
| - | |||
| - | **Power:** Device is powered only through __PoE 802.3af__ (" | ||
| - | |||
| - | :!: There is no information if device can be powered with " | ||
| - | |||
| - | :!: There is **No PoE Passthrough**: | ||
| - | |||
| - | COMFAST CF-EW72 V2 is known to be produced in two variants (**not versions**): | ||
| - | * COMFAST CF-EW72 V2 with MT7621AT and separate DDR RAM chip onboard. | ||
| - | * COMFAST CF-EW72 V2 with MT7621DAT with integrated RAM and no DDR RAM soldered chip onboard. | ||
| - | PCBs for both variants are same. Firmware works for both. | ||
| - | |||
| - | COMFAST CF-EW72 V2 known to be sold both in unpainted cardboard box and colorful glossy cardboard box. | ||
| - | I guess, but not guarantee that colorful box is for new variant equipped with MT7621DAT SoC and no RAM chip. | ||
| - | |||
| ===== Installation ===== | ===== Installation ===== | ||
| Line 83: | Line 72: | ||
| ==== Installing OpenWrt ==== | ==== Installing OpenWrt ==== | ||
| + | |||
| + | You will need 2 ethernet cables for this. | ||
| - → Connect bundled __PoE Injector__ to electricity. | - → Connect bundled __PoE Injector__ to electricity. | ||
| - | - → Connect your PC to the __LAN__ port of bundled __PoE injector__. | + | - → Connect your PC to the __LAN__ port of bundled __PoE injector__ |
| - → Configure static IP on your computer' | - → Configure static IP on your computer' | ||
| * IP : <wrap hi> | * IP : <wrap hi> | ||
| Line 91: | Line 82: | ||
| * Gateway : //empty// | * Gateway : //empty// | ||
| * DNS : //empty// | * DNS : //empty// | ||
| - | - → Plug ethernet cable to the __PoE__ port of bundled __PoE injector__. | + | - → Plug second |
| - | - → Press and hold pressed | + | - → Press and hold pressed |
| - → <color # | - → <color # | ||
| - → Release the **⚫reset** button. | - → Release the **⚫reset** button. | ||
| Line 132: | Line 123: | ||
| The only both visible and customizable led is Wi-Fi led. | The only both visible and customizable led is Wi-Fi led. | ||
| - | Led#1(POWER), Led#3(WAN), Led#5(LAN) can not be controlled programmatically. | + | ^ Led # ^ Indicator role ^ GPIO ^ Name in LuCI ^ Note ^ |
| + | | | ||
| + | | 2 | 🔷Not visible | ||
| + | | | ||
| + | | 4 | 🔷Not visible | ||
| + | | | ||
| + | | 6 | ⬛Not visible | ||
| + | | 7 | 🔵WLAN | ||
| + | | 8 | ⬛Not visible | ||
| + | ===== Hardware ===== | ||
| + | ==== Info ==== | ||
| + | ^ Architecture | ||
| + | ^ Vendor | ||
| + | ^ Bootloader | ||
| + | ^ System-On-Chip | ||
| + | ^ CPU/ | ||
| + | ^ Flash-Chip | ||
| + | ^ Flash size | 16 MiB | | ||
| + | ^ RAM | 128 MiB | | ||
| + | ^ Wireless | ||
| + | ^ Ethernet | ||
| + | ^ Switch | ||
| + | ^ USB | None | | ||
| + | ^ Serial | ||
| + | ^ JTAG | Not populated | ||
| + | |||
| - | Led#6 and Led#8 can not be controlled and always off. | + | ===== Power ===== |
| - | Led#2 and Led#4 can be controlled | + | Device is powered only through __PoE 802.3af__ (" |
| - | Led#7 is Wi-Fi led. By default it is not mapped to indicate wireless activity. | + | :!: There is no information if device can be powered with " |
| - | ^ Led # ^ Indicator role ^ GPIO ^ Name in LuCI ^ | + | :!: There is **no PoE Passthrough**: please note that device does not provide power to daisy-chained device. |
| - | | 1 | 🔵POWER | + | |
| - | | 2 | ⚪Not visible | + | |
| - | | 3 | 🔵WAN | + | |
| - | | 4 | ⚪Not visible | + | |
| - | | 5 | 🔵LAN | + | |
| - | | 6 | ⚪Not visible | + | |
| - | | 7 | 🔵WLAN | + | |
| - | | 8 | ⚪Not visible | + | |
| - | ===== Hardware ===== | + | |
| - | ==== Info ==== | + | |
| - | ^ Architecture | + | |
| - | ^ Vendor | + | |
| - | ^ Bootloader | + | |
| - | ^ System-On-Chip | + | |
| - | ^ CPU/ | + | |
| - | ^ Flash-Chip | + | |
| - | ^ Flash size | EXAMPLE 8 MiB | | + | |
| - | ^ RAM | EXAMPLE 64 MiB | | + | |
| - | ^ Wireless | + | |
| - | ^ Ethernet | + | |
| - | ^ Switch | + | |
| - | ^ USB | EXAMPLE 1x 2.0 | | + | |
| - | ^ Serial | + | |
| - | ^ JTAG | EXAMPLE [[#JTAG|Not populated]] | + | |
| + | ===== MT7621AT or MT7621DAT ===== | ||
| + | |||
| + | For end user, there is no difference. | ||
| + | |||
| + | COMFAST CF-EW72 V2 is known to be produced in two variants (**not versions**): | ||
| + | * COMFAST CF-EW72 V2 with MT7621AT and separate DDR RAM chip onboard. | ||
| + | * COMFAST CF-EW72 V2 with MT7621DAT with integrated RAM and no DDR RAM soldered chip onboard. | ||
| + | PCBs for both variants seem to be same. Firmware works for both. | ||
| + | |||
| + | COMFAST CF-EW72 V2 known to be sold both in unpainted cardboard box and colorful glossy cardboard box. | ||
| + | I guess, but not guarantee that colorful box is for new variant equipped with MT7621DAT SoC and no RAM chip. | ||
| + | Seems that devices also have different factory labels. | ||
| /*** if info available: uncomment and fill in | /*** if info available: uncomment and fill in | ||
| Line 183: | Line 187: | ||
| /* Thanks, your wiki administration - Oct. 2015 */ | /* Thanks, your wiki administration - Oct. 2015 */ | ||
| - | **Insert photo of front of the casing** | + | **Photo of casing** |
| - | **Insert photo of back of the casing** | + | ^ Front ^ Back ^ Opened Lid ^ |
| + | | {{: | ||
| - | **Insert photo of backside label** | + | **Photo of backside label** |
| + | ^ Variant for MT7621AT | ||
| + | | {{ : | ||
| **Photo of PCB** | **Photo of PCB** | ||
| - | {{: | + | Click to enlarge |
| + | |||
| + | ^ Side A ^ Side B ^ | ||
| + | | {{: | ||
| + | |||
| ==== Opening the case ==== | ==== Opening the case ==== | ||
| - | <WRAP BOX> | + | === Tools needed === |
| - | FIXME //Describe what needs to be done to open the device, e.g. remove | + | |
| - | </ | + | * Hot air gun (to gently |
| + | * Needle nose pilers | ||
| + | * PH0 screwdriver | ||
| + | * Сontainer for small items (zip bag) | ||
| + | === Opening the case in steps === | ||
| + | |||
| + | ^ Step ^ Text ^ Image ^ | ||
| + | | 1 | Open the case and disconnect cables. | Click image\\ to enlarge | | ||
| + | | 2 | Use hot air to heat the factory label and peel it off.\\ If you wish, glue it to the back of the case, closer to the antennas. | {{: | ||
| + | | 3 | Remove 2 screws hidden under the factory label. | {{: | ||
| + | | 4 | Unscrew antennas.\\ Remove big rubber rings.\\ Unscrew the nuts from the Wi-Fi antenna connectors using thin-nosed pliers.\\ Do not remove washer and o-ring hidden under washer yet. | {{: | ||
| + | | 5 | Grasp the sides of the device and gently push the antenna connectors into the device.\\ Be careful with the center pin of the connector.\\ After the antenna connectors are completely inside the device, pull on the plastic insert with RJ45 connectors. | {{: | ||
| + | | 6 | Remove 2 washers and 4 o-rings in total.\\ There are 2 washers and 2 small o-rings on the outside of the case.\\ :!: There are two more small o-rings on Wi-Fi antenna connectors from the inside of the case.\\ They may be on antenna connectors or stick to casing from inside. Remove them.\\ | | | ||
| + | | 7 | Put into a zip bag:\\ ☑️ 1 factory label (if removed)\\ ☑️ 2 screws\\ ☑️ 2 big rubber rings\\ ☑️ 2 nuts\\ ☑️ 2 washers\\ ☑️ 4 small o-rings | | | ||
| + | | 8 | Put a zip bag inside an empty casing and close with a casing lid. | | | ||
| + | | 9 | Screw antennas to Wi-Fi connectors on PCB. | | | ||
| ==== Serial ==== | ==== Serial ==== | ||
| {{ : | {{ : | ||
| Line 204: | Line 231: | ||
| How to connect to the Serial Port of this specific device:\\ | How to connect to the Serial Port of this specific device:\\ | ||
| - | Device has factory-soldered 2.54mm pin header. | ||
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| - | It is recommended NOT connect VCC pin as device powers from PoE. | ||
| - | |||
| - | GND pin is recommended to be connected. | ||
| - | In some situations device may not start when RX pin is connected - so, connect it right after you see output from device. | + | * [[#Opening the case|Remove the case]].\\ |
| + | * Device has factory-soldered 4 x 2.54mm pin header (VCC, GND, TX, RX).\\ | ||
| + | * GND pin is recommended to be connected. \\ | ||
| + | * :!: It is recommended NOT connect VCC pin as device powers from PoE.\\ | ||
| + | * :!: It is recommended to connect serial adapter through active (with separate power) USB hub. Avoid connecting to usb port connected to computer motherboard. CF-EW72 V2 has 48V on PCB, and if 48V will somehow hit your USB, it may damage your PC, including CPU. | ||
| + | * In some situations device may not start when RX pin is connected - so, connect it right after you see output from device. | ||
| + | * Connected RX also may cause random 5GHz Wi-Fi chip problems. | ||
| ^ Serial connection parameters\\ for COMFAST CF-EW72 V2 | 115200, 8N1, 3.3V | | ^ Serial connection parameters\\ for COMFAST CF-EW72 V2 | 115200, 8N1, 3.3V | | ||