...
USB connection for debugging. It is connected to UART through a FTDI USB-UART bridge that provides USB driver firmware, meaning there's no need to install a driver and it can be read/written using a regular terminal with baud rates up to 3 million symbols per second. A TX and RX indicator is provided on the pcb for debug, to indicate if the camera is receiving or sending data over UART.
Because of limited MIO pins available the USB-UART is shared with the bus connector UART. A 2-channel single-pole double throw (SPDT) bidirectional switch is used to switch between the two connectors. By default it's routed to the USB-UART but by setting pin PS_MIO_51 high the data is routed to pin 3 and 4 on the bus connector.
| PicoZed Pin | Functionality | Comment |
|---|---|---|
| PS_MIO_14 | TX | |
| PS_MIO_15 | RX | |
| PS_MIO_51 | SPDT Switch | Set to '0' for USB and '1' for bus connector |
USB 2.0 Connection
| PicoZed Pin | Functionality | Comment |
|---|---|---|
| POWER_5V | ||
| Data+ | ||
| Data- | ||
| Ground |
...
| Type | File | Kind | Comment | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Schematic |
| Missing watermark + not made pretty yet. | |||||||
| Gerber | ntnu-hsi-prototype-SlotHoles.TXT | NC Drill Top Solder Top Paste Top Overlay Top Signal Top Pad Bottom Pad Middle Signal Middle Signal Board Outline Gerber drill Bottom Solder Bottom Paste Bottom Overlay Bottom Signal | Gerber files sent to production, not that slots are in a separate drill file. | ||||||
| Altium Designer | Altium Designer 17 project files |