Zest_Extension_SPI
Overview
The Zest_Extension_SPI is an electronics development board for 6TRON opensource platform, used to expand the SPI bus.
The board is particularly useful to control remote sensors and actuators communicating through the SPI interface
The board includes 8 x 6 or 7-pin headers, each with the following signals:
- common SPI bus signals (MOSI, MISO, SCK)
- dedicated chip select signal (NSS)
- a common digital pin -OE (optional)
- supply voltage (GND and +3.3V)
Specifications
| Connectivity | 80-pin 6TRON header 8 x 6 or 7-pin 1mm-pitch JST headers |
|---|---|
| Board size | 80 x 39mm |
| Power Supply | 3.3 to 12V from stack, 3.3V internal |
| Category | Zest_Extension |
Block Diagram
The graphics below give an overview of the board features and connections.
| Description | 6TRON function | Pin number | Pin number | 6TRON function | Description |
|---|---|---|---|---|---|
| - | VJACK | 1 | 2 | VJACK | - |
| - | VJACK | 3 | 4 | VJACK | - |
| - | VHV | 5 | 6 | VHV | - |
| - | VHV | 7 | 8 | VHV | - |
| SPI Chip select 4 (alternate) | DIO8 | 9 | 10 | VIN_EN | - |
| SPI Chip select 4 | DIO7 | 11 | 12 | DIO9 | Output Enable (option) |
| SPI Chip select 3 (alternate) | DIO6 | 13 | 14 | DIO10 | SPI Chip select 5 (alternate) |
| - | MD | 15 | 16 | DIO11 | SPI Chip select 5 |
| alternate SPI | DIO5 | 17 | 18 | DIO12 | SPI Chip select 3 |
| Ground | GND | 19 | 20 | GND | Ground |
| Ground | GND | 21 | 22 | GND | Ground |
| 6TRON Stack Power Supply | VIN | 23 | 24 | VIN | 6TRON Stack Power Supply |
| 6TRON Stack Power Supply | VIN | 25 | 26 | VIN | 6TRON Stack Power Supply |
| - | VB_EN | 27 | 28 | DIO13 | SPI Chip select 2 (alternate) |
| - | VB_OUT | 29 | 30 | DIO14 | SPI Chip select 2 |
| SPI Clock (alternate) | DAC1 | 31 | 32 | DIO15 | SPI Chip select 1 (alternate) |
| - | ADC4 | 33 | 34 | DIO16 | SPI Chip select 1 |
| - | ADC3 | 35 | 36 | DIO17 | SPI Chip select 6 (alternate) |
| - | ADC2 | 37 | 38 | DIO18 | SPI Chip select 6 |
| - | ADC1 | 39 | 40 | GND | - |
| - | EXT_NRST | 41 | 42 | GND | - |
| SPI Chip select 8 (alternate) | DIO4 | 43 | 44 | VREF | - |
| - | DIO3 | 45 | 46 | DIO19 | SPI Chip select 7 (alternate) |
| SPI MISO (alternate) | DIO2 | 47 | 48 | DIO20 | SPI Chip select 7 |
| SPI MOSI (alternate) | DIO1 | 49 | 50 | DIO21 | - |
| - | WKUP | 51 | 52 | DIO22 | - |
| - | ICAPT | 53 | 54 | DIO23 | - |
| - | PWM3 | 55 | 56 | DIO24 | - |
| - | PWM2 | 57 | 58 | DIO25 | - |
| - | PWM1 | 59 | 60 | DIO26 | - |
| SPI Chip select 8 | SPI1_SS | 61 | 62 | DIO27 | - |
| SPI Clock | SPI1_SCK | 63 | 64 | DIO28 | - |
| SPI MISO | SPI1_MISO | 65 | 66 | DIO29 | - |
| SPI MOSI | SPI1_MOSI | 67 | 68 | DIO30 | - |
| - | UART1_TX | 69 | 70 | DIO31 | - |
| - | UART1_RX | 71 | 72 | DIO32 | - |
| - | I2C1_SDA | 73 | 74 | DIO33 | - |
| - | I2C1_SCL | 75 | 76 | DIO34 | - |
| - | CAN1_TX | 77 | 78 | DIO35 | - |
| - | CAN1_RX | 79 | 80 | DIO36 | - |
Ressources
Application notes
- Powering 6TRON board