busvoodoo
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| busvoodoo [2017/12/15 08:38] – make titles bigger kingkevin | busvoodoo [2017/12/15 09:06] – [protocols] kingkevin | ||
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| Line 12: | Line 12: | ||
| Device features: | Device features: | ||
| - | * small rigid case: 49.3x27.7 mm | + | * compact |
| * host connection: USB 2.0 (mini-B, full speed: 11 Mb/s) | * host connection: USB 2.0 (mini-B, full speed: 11 Mb/s) | ||
| * 2 light indicators: red for power, red+blue for activity | * 2 light indicators: red for power, red+blue for activity | ||
| Line 18: | Line 18: | ||
| * 1 display connector (OLED screen provided in full version) | * 1 display connector (OLED screen provided in full version) | ||
| * 1 internal debugging and automation connector (2x4 pins with 2 mm pitch) | * 1 internal debugging and automation connector (2x4 pins with 2 mm pitch) | ||
| + | * re-flashable with [[# | ||
| I/O connector: | I/O connector: | ||
| Line 65: | Line 66: | ||
| ===== protocols ===== | ===== protocols ===== | ||
| + | |||
| + | The signals can be driven using 3.3 V push-pull mode, or 1.6 to 5.5 V open-drain mode with 2 kOhm embedded pull-up resistors (can be increased using external resistor). | ||
| + | |||
| + | ^ protocol ^ support ^ comment ^ | ||
| + | | UART | hardware | 2 UARTs available, 1 with hardware flow control | | ||
| + | | SPI | hardware | with multiple Chip Select | | ||
| + | | I²C | hardware | with embedded pull-up resistors | | ||
| + | | I²S | hardware | with master clock | | ||
| + | | SD/eMMC | hardware | with 1 or 4 data lines | | ||
| + | | SMBus | hardware | with embedded pull-up resistors | | ||
| + | | LIN | hardware | | | ||
| + | | ISO-7816 | hardware | | | ||
| + | | RS-232 | hardware | with hardware flow control, only in full version | | ||
| + | | RS-485 | hardware | no termination resistor, only in full version | | ||
| + | | RS-422 | hardware | no termination resistor, only in full version | | ||
| + | | CAN | hardware | no termination resistor, only in full version | | ||
| + | | 1-Wire | software | | | ||
| + | | MicroWire | software | | | ||
| + | | WS2812b | sofware | dedicated LED light protocol | | ||
| + | | DHT11/DHT22 | software | dedicated humidity/ | ||
| + | | TM1637 | software | dedicated 7-segment display protocol | | ||
| + | | IR | software | various InfraRed protocols, planned | | ||
| + | | JTAG | software | planned | | ||
| + | | SWD | software | planned | | ||
| + | | cJTAG | software | planned | | ||
| + | |||
| + | note: the status of each protocol support is not documented yet (WiP) | ||
| + | |||
| + | no matter which protocol you are using, the hardware has been designed to provide one additional UART port | ||
| + | |||
| + | ===== firmwares ===== | ||
| ===== history ===== | ===== history ===== | ||