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| inbox:toh:comfast:cf-ew72_v2 [2023/08/23 15:41] – [Opening the case] filimonic | inbox:toh:comfast:cf-ew72_v2 [2023/08/24 10:22] – [Serial] filimonic | ||
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| ===== Hardware ===== | ===== Hardware ===== | ||
| ==== Info ==== | ==== Info ==== | ||
| - | ^ Architecture | + | ^ Architecture |
| - | ^ Vendor | + | ^ Vendor |
| - | ^ Bootloader | + | ^ Bootloader |
| - | ^ System-On-Chip | + | ^ System-On-Chip |
| - | ^ CPU/ | + | ^ CPU/ |
| - | ^ Flash-Chip | + | ^ Flash-Chip |
| - | ^ Flash size | + | ^ Flash size |
| - | ^ RAM | EXAMPLE 64 MiB | + | ^ RAM | 128 MiB | |
| - | ^ Wireless | + | ^ Wireless |
| - | ^ Ethernet | + | ^ Ethernet |
| - | ^ Switch | + | ^ Switch |
| - | ^ USB | EXAMPLE 1x 2.0 | | + | ^ USB | None | |
| - | ^ Serial | + | ^ Serial |
| - | ^ JTAG | EXAMPLE [[#JTAG|Not populated]] | + | ^ JTAG | Not populated |
| + | |||
| ===== Power ===== | ===== Power ===== | ||
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| * COMFAST CF-EW72 V2 with MT7621AT and separate DDR RAM chip onboard. | * 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. | * COMFAST CF-EW72 V2 with MT7621DAT with integrated RAM and no DDR RAM soldered chip onboard. | ||
| - | PCBs for both variants | + | PCBs for both variants |
| COMFAST CF-EW72 V2 known to be sold both in unpainted cardboard box and colorful glossy cardboard box. | 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. | 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 192: | Line 193: | ||
| **Photo of backside label** | **Photo of backside label** | ||
| - | ^ Variant for MT6721AT | + | ^ Variant for MT7621AT |
| - | | {{ : | + | | {{ : |
| **Photo of PCB** | **Photo of PCB** | ||
| Line 231: | Line 232: | ||
| 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.\\ | + | * [[#Opening the case|Remove the case]].\\ |
| - | It is recommended NOT connect VCC pin as device powers from PoE.\\ | + | * Device has factory-soldered |
| - | GND pin is recommended to be connected. | + | * 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. | + | * :!: 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 | ||
| + | | ||
| + | * 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 | | ||