WM321 Camera encoder board
Function
Variants
Parts
Programming
External interfaces
Service interfaces
Board view
Schematics
The Camera encoder board in P3C is connected to sensor board. It contains a video encoder chipset which processes two video streams: one allows writing the video and photos to a SD card, and second is sent to gimbal top board for wireless FPV transmission.
The known variants are listed below.
| Marking | Overview |
|---|---|
| P01246.01 | First version. |
| P01426.03 | Minor changes only. |
| Marking | Amt. | Pkg. | Function | Specification |
|---|---|---|---|---|
| Ambarella A9-A1-RH A1502 X1502-AN1 1R1 A9S15 | 1 | BGA | Ultra HD 4K Camera SoC | datasheet |
| Elpida B8132B3PB-1D-F 1508RR41100 | 1 | 168-ball 12×12 FBGA | Embedded LPDDR2 SDRAM for Ambarella | description |
| MXIC B171009 MX30LF2G18AC-XKI 8D366002 | 1 | 63-ball 11x9 VFBGA | 3V SLC NAND Flash memory | description |
| 5GE12 NQ283 | 1 | 63-ball 11x9 VFBGA | Micron MT29F2G08ABAEAH4 NAND Flash; MX30LF replacement on some boards | description |
| VUBI T1 54 S23F | 2 | 16-lead 3x3 QFN | TLV62130RGT - 3-17V 3A Step-Down Converter | description |
| 51AJ29U 26480CF | 1 | 24-lead 4x4 WQFN | TI LM26480QSQX-CF Dual High-Current Step-Down DC/DC and Dual Linear Regulators | description |
| 24.000 55 8Y 8B | 1 | 4-lead SMD 3225 | Quartz oscillator, 24 MHz | |
| C 5A AW | 1 | 8-lead | Atmel ATSHA204 CryptoAuthentication? | |
| F21A | 1 | 6-pin | TI LM3880MF-1AB Three-Rail Simple Power Sequencer | datasheet |
| C3JEC | 1 | 4-lead 7x1.5 SMD | plastic covered metal case with quartz oscillator; Seiko Epson MC-146 series or its knock-off, exact model unknown | description |
| BNA | 1 | 5-pin SOT-23 | ||
| CER | 1 | 5-lead 2x1.5 UQFN |
| Chips | Firmware | Description |
|---|---|---|
| A9S15, EDB8132B, MX30LF2G/MT29F2G | m0100, m0101 | Takes care of video encoding and controls firmware update process. Controls SD card slot. Consists of loader (01) and application (00). |
The board contains one connector:
| Marking | Overview |
|---|---|
| TODO |
The following service pads exist on this board:
| Marking | Overview |
|---|---|
| U0RX | |
| U0TX | |
| 5V | |
| GND | |
| A9S_3V3 | |
| 1.25V | |
| VBUS | |
| 3V3 | |
| DM | |
| DP | |
| VDD | |
| RST | |
| TDI | |
| TMS | |
| TDO | |
| CLK | |
| GND | |
| 1V8 | |
| GND | |
| U3_RX | |
| U3_TX | |
| ISP | |
| GND | |
| O6 | |
| U2TX | |
| U2RX | |
| RSTEX |
Top of a P01246.01 board:
Bottom of the P01246.01 board:
Top of a P01246.03 board:
Bottom of the P01246.03 board:
No schematics available.