Merge pull request #1 from generationmake/dev_0.1

development for prototype release

Author: generationmake

OpenCyphalPicoBase.pdf

@@ -1,2 +1,65 @@
 # OpenCyphalPicoBase
 Board for the Raspberry Pi Pico to connect via CAN using OpenCyphal and UCANPHY Micro
+
+![OpenCyphalPicoBase rendering](docs/images/OpenCyphalPicoBase_rendering.png)
+
+## SOftware
+
+https://github.com/107-systems/l3xz-fw_aux-controller
+
+## pin usage
+
+### Raspberry Pi Pico 
+
+| **Pin** | **Pin Name** | **Signal**    | **Description**                  |
+|:-------:|:------------:|:-------------:|:--------------------------------:|
+| 1       | GP0          | UART0_TX      | reserved for future use (GNSS)   |
+| 2       | GP1          | UART0_RX      | reserved for future use (GNSS)   |
+| 3       | GND          | GND           |                                  |
+| 4       | GP2          |               |                                  |
+| 5       | GP3          |               |                                  |
+| 6       | GP4          | I2C0_SDA      | for eeprom and qwiic connector   |
+| 7       | GP5          | I2C0_SCL      | for eeprom and qwiic connector   |
+| 8       | GND          | GND           |                                  |
+| 9       | GP6          | GPI0          | input 0                          |
+| 10      | GP7          | GPI1          | input 1                          |
+| 11      | GP8          | GPI2          | input 2                          |
+| 12      | GP9          | GPI3          | input 3                          |
+| 13      | GND          | GND           |                                  |
+| 14      | GP10         | GPO0          | output 0                         |
+| 15      | GP11         | GPO1          | output 1                         |
+| 16      | GP12         | reserved      | Neopixel                         |
+| 17      | GP13         | reserved      | radiation detector               |
+| 18      | GND          | GND           |                                  |
+| 19      | GP14         | SERVO0        | servo 0                          |
+| 20      | GP15         | SERVO1        | servo 1                          |
+| 21      | GP16         | SPI_MISO      | SPI for MCP2515                  |
+| 22      | GP17         | MCP2515_CS    | SPI for MCP2515                  |
+| 23      | GND          | GND           |                                  |
+| 24      | GP18         | SPI_CLK       | SPI for MCP2515                  |
+| 25      | GP19         | SPI_MOSI      | SPI for MCP2515                  |
+| 26      | GP20         | MCP2515_INT   | interrupt for MCP2515            |
+| 27      | GP21         | STATUS_LED2   | internal status LED 2            |
+| 28      | GND          | GND           |                                  |
+| 29      | GP22         | STATUS_LED3   | internal status LED 3            |
+| 30      | RUN          | RESET         | Reset for Board                  |
+| 31      | GP26         | INPUT_VOLTAGE | measure input voltage            |
+| 32      | GP27         | ANALOG_INPUT0 | analog input                     |
+| 33      | GND          | GND           |                                  |
+| 34      | GP28         | ANALOG_INPUT1 | analog input                     |
+| 35      | ADC_VREF     |               |                                  |
+| 36      | 3V3 (OUT)    | 3V3-rail      | supply voltage for board         |
+| 37      | 3V3_EN       |               |                                  |
+| 38      | GND          | GND           |                                  |
+| 39      | VSYS         |               |                                  |
+| 40      | VBUS         | 5V-rail       | supply voltage for board         |
+
+## PCB
+
+### Top
+
+![OpenCyphalPicoBase PCB top](docs/images/OpenCyphalPicoBase_top.png)
+
+### Bottom
+
+![OpenCyphalPicoBase PCB bot](docs/images/OpenCyphalPicoBase_bot.png)