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RISC-V is an (ISA), which is an interesting alternative for commercial solutions such as ARM or x86. Unlike most of ISAs, RISC-V is not patent-protected and its use does not require purchasing a license. This feature causes growing interest not only among hobbyists but among large electronic industry companies as well.
RISC-V was created in 2010 as an academic project at the University of California, Berkeley ParLab. With the growing number of enthusiasts of this solution, a decision was made to establish a non-profit RISC-V (www.riscv.org) organisation in 2015. Its aim is to create a new, open community developing hardware and software based on the RISC-V architecture. Currently, the foundation consists of over 500 member companies, among others: Google, NXP, Samsung. Orion, Huawei, Microchip Technology, Cortus, GigaDevice Semiconductor and Arduino. RISC-V foundation shares free documentation (through the Github platform) including, among others: a set of instruction manuals, data types, a set of registers, rules concerning the use of threads, levels of privilege, debugging and frameworks for free. The users have the right to use and modify ISAs to suit their applications without the need of any additional payments. It is a crucial advantage for companies wanting to minimise costs and which chip production is counted in millions of copies.
RISC-V architecture has been designed in order to obtain much faster, less expensive, smaller and energy-efficient electronical solutions. RISC-V is not dedicated to a particular kind of microarchitecture and is fully scalable, therefore it is possible to create both a simple FPGA circuit and an advanced processor.
GigaDevice Semiconductor has created a new series of 32-bit GD32VF103 microcontrollers based on the RISC-V architecture. Winning the embeddedaward2020 competition in the category of hardware proves the quality of this new solution.
GD32VF103 series has been designed to provide a balance between high computing power and low use of energy, as evidenced by the 50% reduction of dynamic power consumption in comparison to GD32 with Cortex-M3 core. This series is fully compatible with 32-bit GigaDevice microcontrollers based on ARM architecture in terms of software and pinout which allows the user to transfer their application much more easily.
GD32VF103 consists of fourteen models with Bumblebee processors with a clock rate up to 108MHz, FLASH memory within of 16-128kB and SRAM memory from 6 to 32kB. Furthermore, those microcontrollers are equipped with a 64-bit real-time clock, 16-bit advanced PWM timer dedicated to controlling the motor, two 12-bit ADC transducers and two 12-bit DAC transducers. The user can use the 16-level interrupt priority system, it is also possible to nest the interrupts and to generate vectored interrupts. Thanks to three low power consumption modes, GD32V103 microcontrollers can be used in applications in which energy-saving is a priority.
Basic parameters of the GD32VF103 series:
Microcontrollers from the GDVF103 family are available in: QFN36, LQFP48, LQFP64, LQFP100 casings.
Parameters of individual microcontrollers from GD32VF103 series:
|Microcontroller||FLASH memory||SRAM memory||casing|
Microcontrollers from the GD32VF103 series can be used, among others, in:
GigaDevice company has established a cooperation with software development companies such as: Nuclei System Technology, IAR Systems and SEGGER Microcontroller, to give the users a possibility to choose the development environment best suited to their application. Currently, the development of the GD32VF103 series software is possible thanks to:
Those who want to build their own project based on GD32 microcontrollers with the RISC-V architecture can use programming and debugging tools such as:
The users of GigaDevice solutions can easily implement their own project not only thanks to new software development tools and libraries but also thanks to diverse evaluation and starter kits. The models that are currently available on the market are:
Parameters of the GD32VF103V-EVAL evaluation kit:
Parameters of the GD32VF103R-START, GD32VF103T-START, GD32VF103C-START starter kits
|5V supply voltage|
|integrated GD Link programmer|
|Arduino standard connector|
On 2 June 2020, GigaDevice Solutions introduced an evaluation kit which was the result of cooperation with IAR Systems. It is a kit dedicated to applications based on RISC-V architecture, consisting of:
On the evaluation board, you will find:
GigaDevice is a fabless company manufacturing advanced SPI NOR Flash, SPI NAND Flash memories and microcontrollers based on the ARM architecture with Cortex M3/M4/M23 and RISC-V cores. More than half of the company’s employees are involved in research and product development, thanks to which Gigadevice products enjoy success among clients from the embedded systems industry and in consumer electronics. Currently, this company holds over 600 patents in the field of microcircuits production technology.
We encourage you to get acquainted with the GigaDevice products available in the TME offer.
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