HydraBus

Introduction:

Features of the HydraBus board:

• Very small board only 60mm x 37mm size (extensible with shield which can be connected on top or bottom)
• Programming firmware through USB DFU (without any debugger) with USB1 FS
• Debug/Programming through low cost SWD Debug connector (can be programmed/debugged using an ultra low cost NUCLEO F401RE for less than 15US$)
• Two MicroUSB port (1 OTG and 1 Device/Host) with ESD protection
• MicroSD slot with 4bit SD and SDIO mode support in hardware (up to 48MHz about 24MB/s)
• Reset & User Button (Enter USB DFU at PowerOn) with User Led (can be disabled to reuse I/O for other stuff)
• Breakout of all 44 I/O (some are used by MicroSD and USB 1&2)
• MCU ARM 32-bit Cortex M4+FPU up to 168MHz& 1MB Embedded Flash
  • Power consumption of less than 100mA/3.3V with all peripherals enabled
  • Ultra low power mode (down to less than 2mA for specific treatment)
• Hardware doc, schematic/board, pinout, template are available on github: https://github.com/bvernoux/hydrabus/tree/master/hardware
• For more details on HydraBus Hardware see http://hydrabus.com/hydrabus-1-0-hw-detailed/
• Hardware license CC BY NC (for commercial license contact [email protected])
• Support optional HydraBus-Sick-Of-Beige-Case a cheap transparent acrylic case
• Support optional HydraNFC Shield a high performance NFC board with Antenna based on TI TRF7970A NFC chipset (and fully supported by hydrafw)
• Other accessories / shield for HydraBus are available at https://www.seeedstudio.com/HydraBus-m-132.html

Features of HydraBus/HydraNFC open source embedded native firmware (hydrafw):

• Fully open source software, main software Licensed under the Apache License, Version 2.0 and linked part:
  • STM32CubeF4 HAL open-source BSD license,
  • ChibiOS 3.0 licensed as GPL3/Apache 2.0 and other commercial license if required,
  • tokenline licensed as GPL 2.0 or later,
  • FatFs license BSD/GNU GPL
• Virtual Serial Port access through microUSB with VT100 terminal/shell (compatible with any hardware supporting USB Virtual Serial port)
  • 2 micro USB port can be used (managed by multi-task OS), useful to test multiple protocols, gpio/adc/dac… in 2 terminal
• Support of microSD (FAT16/FAT32) card up to 32GB (tested with SanDisk Extreme 32GB and lot of other cards)
• Multiple protocols supported (from any VT100 console):
  • JTAG scanner/debugger mode like JTAGulator
    • BusPirate-compatible OpenOCD binary mode
  • Logic Analyzer mode up to 2 MHz 16chan with SUMP support
    • Compatible with ols-0.9.7.2 see http://ols.lxtreme.nl see also ols profile for hydrabus https://github.com/bvernoux/hydrafw/blob/master/ols.profile-hydrabus.cfg
    • Compatible with sigrok: sigrok-cli & PulseView see http://sigrok.org
  • CAN1 or 2 (up to 1 Mbit/s)
  • SPI1 or 2 (master & slave up to 42MHz)
  • I2C (master up to 1MHz)
  • UART1 & 2 (up to 10.5Mbps)
  • ADC (up to 3.3V, can read internal Temperature, VrefInt, VBAT)
  • DAC1 or 2 (up to 3.3V, triangle, noise)
  • PWM (Frequency from 1Hz to 42MHz, Duty Cycle 0 to 100%)
  • GPIO (In/Out/Open-Drain) up to 44 I/O configurable (PA0-15, PB0-11, PC0-15 support range & wildcard)
  • RNG (Random number generator using STM32 hardware RNG)
  • See Wiki for more details: https://github.com/bvernoux/hydrafw/wiki
• Planned features / Task List:
  • See Wiki https://github.com/bvernoux/hydrafw/wiki/Task-List
• Alternative firmware for HydraBus:
• Micro Python firmware ported to HydraBus
  • see HydraBus Micro Python github
• BlackMagic (JTAG/SWD Debugger) firmware ported to Hydrabus
  • see BlackMagic HydraBus port github
  • For more details on hydrabus port see: https://github.com/bvernoux/blackmagic/tree/master/src/platforms/hydrabus

Links:

If you encounter any problems when using this product, contact the technical support.