Hackaday reports that OnChip launched a Crowd Supply campaign:

mRISC-V: The First Open Source RISC-V Microcontroller

Now, this is finally changing. OnChip, a startup from a group of doctoral students at the Universidad Industrial de Santander in Colombia, have been working on mRISC-V, an open 32-bit microcontroller based on the RISC-V instruction set [..]

Open-V Chip Specifications

• Package
  • QFN-32
  • No other packages are planned for the first run
• Processor
  • RISC-V ISA version 2.1
  • 1.2 V operation
• Memory
  • 8 KB SRAM
• Clock
  • 32 KHz – 160 MHz
  • Two PLLs, user-tunable with muxers and frequency dividers
  • includes all clocking and bias circuitry
• Analog Signals
  • Two 10-bit ADC channels, each running at up to 10 MS/s
  • Two 12-bit DAC channels
• Timers
  • One general-purpose 16-bit timer
  • One 16-bit watch dog timer (WDT)
• General Purpose Input/Ouput
  • 16 programmable GPIO pins
  • two external interrupts
• Interfaces
  • SDIO port (e.g., microSD)
  • Two SPI ports
  • I2C
  • UART
• Programming and Testing
  • Built-in debug module for use with gdb and JTAG
  • Programmable PRBS-31/15/7 generator and checker for interconnect testing
  • Compatible with the Arduino IDE

Open-V Dev Board Specifications

The dev board comes completely assembled.

• USB 2.0 controller
• 1.2 V and 3.3 V voltage regulators
• Clock reference
• Breadboard-compatible breakout header pins
• microSD receptacle
• Micro USB connector (power and data)
• JTAG connector
• 32 KB EEPROM
• 32-pin QFN Open-V microcontroller
• Dimensions: 55 mm x 30 mm (excluding USB receptacle)