CH32V003 Mini Development Board
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CH32V003 Mini Development Board

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  • Mini Development Board For CH32V003F4P6 From Wch

$ 1.5

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Board Description

CH32V003 series is an industrial-grade general-purpose microcontroller designed based on QingKe RISC-V2Acore, which supports 48MHz system main frequency in the product function. The series features wide voltage,single line debug, low-power consumption and ultra-small package. It provides commonly used peripheralfunctions, built-in 1 group of DMA controller, 1 group of 10-bit analog-to-digital conversion ADC, 1 group ofop-amp comparator, multiple timers, standard communication interfaces such as USART, I2C, SPI, etc. The rated operating voltage of the product is 3.3V or 5V, and the operating temperature range is -40℃～85℃ industrial-grade.

 

Microcontroller

QingKe V2 series microprocessor is a 32-bit general-purpose MCU based on the RISC-V instruction set (RV32I subset RV32E). It uses only 16 general-purpose registers and a streamlined structure optimized for deep embedded scenarios. The V2 series supports the RV32EC extension; the V2C variant adds hardware multiplication. Custom XW extensions include Hardware Prologue/Epilogue (HPE), Vector Table Free (VTF), a simplified 1-wire/2-wire serial debug interface (SDI), and support for the WFE instruction.

 

Features

Feature Description
Instruction Set Architecture (ISA) RV32EmC
Pipeline 2-stage
Branch prediction Static branch prediction
Interrupts Supports up to 256 interrupts (including exceptions) and supports VTF
Hardware Prologue/Epilogue (HPE) Supports 2 levels of HPE
Low-power modes Sleep and Deep sleep; supports WFI and WFE sleep methods
Extended instructions Supports half-word and byte operation compression instructions
Debug 1-wire/2-wire SDI and standard RISC-V debug

 

Specifications

  • Core: 32-bit RISC-V (RV32EmC / RV32EC for extensions)
  • Registers: 16 general-purpose registers
  • Pipeline: 2-stage
  • Interrupts: Up to 256 (including exceptions)
  • Low-power: Sleep, Deep sleep; WFI/WFE support
  • Debug interfaces: 1-wire/2-wire SDI, standard RISC-V debug
  • Optional: V2C supports hardware multiplication

 

Applications

  • Deeply embedded systems requiring a minimal-footprint RISC-V core
  • Low-power MCU applications (battery-powered sensors, wearables)
  • Systems needing compact interrupt handling and fast wake/sleep transitions
  • Designs that benefit from simplified debug (1-wire/2-wire SDI) and custom instruction extensions (HPE, VTF, XW)

 

Development Board Configuration

The detailed assignment of the peripheral interfaces on the Development board is as follows:

NO. Name Silkscreen Comment
1 Programing pin                         –                        You can program the development board with the one-wire protocol.
2 11 pin – Ch32v Output pin 
3 3 pin – select voltage power supply 3.3V,5V

The Development board has 2 functional indication LEDs, as follows:

  •  Connect to PC0(10) pin wch.
  •  Power indication LED.

 

Components

Pinout

 

Pin Describtion

Pin No. Pin name Pin type (1) I/O structure Main function (after reset) Default alternate function
– – 0 – VSS P VSS – –
8 1 18 8 PD4 I/O PD4 UCK/T2CH1ETR/A7/

OPO

 TICH4ETR_(1)
9 2 19 8 PD5 I/O PD5 UTX/A5 T2CH4_/URX_
10 3 20 1 PD6 I/O PD6 URX/A6 T2CH3_/UTX_
11 4 1 – PD7 I/O PD7 NRST/T2CH4/OPP1 UCK_
12 5 2 1 PA1 I/O PA1 T1CH2/A1/OPN0 OSCI
13 6 3 3 PA2 I/O PA2 TICH2N/A0/OPP0 OSCO/AETR2_
14 7 4 2 VSS P VSS – –
– 8 5 – PD0 I/O PD0 TICH1N/OPN1 SDA_/UTX_
15 9 6 4 VDD P VDD – –
16 10 7 – PC0 I/O PC0 T2CH3 NSS_/UTX_/T1CH3_
1 11 8 5 PC1 I/O/FT PC1 SDA/NSS T1BKIN_/T2CH4_

T2CH1ETR_/URX_
2 12 9 6 PC2 I/O/FT PC2 SCL/URTS/T1BKIN AETR_/T2CH2_/T1ET

R_
3 13 10 – PC3 I/O PC3 T1CH3 T1CH1N_/UCTS_
4 14 11 7 PC4 I/O PC4 T1CH4/MCO/A2 T1CH1CH2N_(2)
– 15 12 – PC5 I/O/FT PC5 SCK/T1ETR T2CH1ETR_/SCL_

UCK_/T1CH3_
5 16 13 – PC6 I/O/FT PC6 MOSI T1CH1CH3N_(3)

UCTS_/SDA_
6 17 14 – PC7 I/O PC7 MISO T1CH2_/URTS_/T2CH

2_
7 18 15 8 PD1 I/O PD1 SWIO/T1CH3N/AETR

2

 SCL_/URX_
– 19 16 – PD2 I/O PD2 T1CH1/A3 T2CH3_/T1CH2N_
– 20 17 – PD3 I/O PD3 A4/T2CH2/AETR/UCT

S

 T1CH4_

 

Dimentions

 

Getting Started Preparation

To program this series of RISC_V microcontrollers, we use the MounRiver Studio software, abbreviated as MRS.
To download this IDE, you can visit the MounRiver Studio website at http://www.mounriver.com/download
This IDE has the ability to program WCH chips internally; but if you want to use external software for programming, you can use the WCH-LinkUtility software, which can be downloaded from the WCH company website. At https://www.wch.cn/downloads/WCH-LinkUtility_ZIP.html You can use WCH–Link.

To connect the programmer to the micro, the GND -> GND and SWDIO -> SWDIO and +5 -> VDD pins must be connected together. If the circuit connected to the micro draws a small current, you can supply the IC power from the programmer itself.

 

Downloads

SKU: E0619 Category: Brand:

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