Altera / Intel USB-Blaster


USB Blaster Download Cable is designed for ALTERA FPGA, CPLD, Active Serial Configuration Devices and Enhanced Configuration Devices, USB 2.0 connection to the PC and JTAG, AS, PS to the target device. Official reference can be found here.


You can configure debugging tool using debug_tool option in “platformio.ini” (Project Configuration File):

platform = ...
board = ...
debug_tool = altera-usb-blaster

If you would like to use this tool for firmware uploading, please change upload protocol:

platform = ...
board = ...
debug_tool = altera-usb-blaster
upload_protocol = altera-usb-blaster

More options:


Please install official drivers.

Wiring Connections


JTAG Interface

USB-Blaster JTAG 10-Pin Connector Board JTAG Pin Description
1 TCK JTAG Return Test Clock
2 GND Digital ground
3 TDO Test Data Out pin
4 VCC Positive Supply Voltage — Power supply for JTAG interface drivers
5 TMS Test Mode State pin
9 TDI Test Data In pin


Name Description
GigaDevice GD32V The GigaDevice GD32V device is a 32-bit general-purpose microcontroller based on the RISC-V core with an impressive balance of processing power, reduced power consumption and peripheral set.
Nuclei Find professional RISC-V Processor IP in Nuclei, first professional RISC-V IP company in Mainland China, match all your requirements in AIoT Era.


Name Description
Arduino Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences
GigaDevice GD32V SDK GigaDevice GD32VF103 Firmware Library (SDK) is a firmware function package, including programs, data structures and macro definitions, all the performance features of peripherals of GD32VF103 devices are involved in the package
Nuclei SDK Open Source Software Development Kit for the Nuclei N/NX processors



For more detailed board information please scroll tables below by horizontal.

Name Platform Debug MCU Frequency Flash RAM
GD32VF103V Evaluation Kit Nuclei External GD32VF103VBT6 108MHz 128KB 32KB
GD32VF103V RVStar Kit Nuclei On-board GD32VF103VBT6 108MHz 128KB 32KB
GD32VF103V-EVAL GigaDevice GD32V External GD32VF103VBT6 108MHz 128KB 32KB
Sipeed Longan Nano GigaDevice GD32V External GD32VF103CBT6 108MHz 128KB 32KB
Sipeed Longan Nano Lite GigaDevice GD32V External GD32VF103C8T6 108MHz 64KB 20KB
Wio Lite RISC-V GigaDevice GD32V External GD32VF103CBT6 108MHz 128KB 32KB