Product Physical Image:
Schematic Diagram:
From the schematic of the CW32L011 core board, the circuit design of the entire project is very simple, with no power conversion circuits, only the minimum peripheral circuits for the MCU, buttons, TYPE-C 5V input, and two indicator lights.
Since the CW32 MCU supports wide voltage power supply, the power supply voltage of the CW32L011 ranges from 1.7V to 5.5V. Therefore, when powered by TYPE-C, the entire system operates at 5V level. If you want to use a power supply other than 5V, you can forgo the TYPE-C interface and directly use the VCC pin of the core board as the power input pin, connecting it to the required voltage level. The flexibility of this core board is evident. If you want to evaluate power consumption, it is recommended to remove unrelated power-consuming components to make the measurement results more reasonable.
It is worth noting that the VCORE pin (Pin 1) of the MCU must be connected to a ceramic filter capacitor of about 1uF to ground. After all, the CW32L011 not only emphasizes high performance but also ultra-low power applications, and this VCORE pin is for the internal voltage regulator.
The spacing of the two pin headers is a typical 600mil design, which is likely to be compatible with some bases designed for 40P core boards.
Although the MCU supports many downloading methods, users should carefully examine the source or model of their programmer. For example, some LINK devices only output 3.3V and do not have level conversion capabilities, making it impossible to program code or debug under the core board’s 5V power supply. Additionally, some counterfeit LINK devices may not function properly due to firmware and other issues. It is recommended to use a properly designed DAPLINK for programming and debugging, or to purchase the official CW32 programming and debugging equipment.
For information about the chip itself, you can visit the official website of Wuhan Xinyuan Semiconductor Co., Ltd.: www.whxy.com
Documents such as data sheets and user manuals are available in both Chinese and English versions. The richness, completeness, and standardization of the official materials are among the best in the industry and deserve praise.
Product Features:
• Core: ARM® Cortex®-M0+
– Maximum Clock Frequency: 96MHz
• Operating Temperature: -40℃~+85℃; Operating Voltage: 1.7V~5.5V
• Storage Capacity:
– Up to 64KB FLASH, data retention of 25 years at -40℃~+85℃, supports erase protection, read protection, and secure runtime library protection features.
– Up to 6KB RAM, supports hardware parity check.
– 22 bytes of OTP memory.
• CRC hardware computation unit.
• Reset and Power Management:
– Low power modes (Sleep, DeepSleep).
– Power-on and brown-out reset (POR/BOR).
– Programmable low voltage detector (LVD).
• Clock Management:
– 4MHz~32MHz crystal oscillator.
– 32kHz low-speed crystal oscillator.
– Built-in 96MHz RC oscillator.
– Built-in 32kHz RC oscillator.
– Clock monitoring system.
– Allows independent shutdown of each peripheral clock.
• Supports up to 26 I/O interfaces.
– All I/O ports support interrupt functionality with filtering.
– All I/O ports support wake-up functionality with filtering.
– All I/O ports support hysteresis and pull-up input.
– All I/O ports support push-pull and open-drain output.
• 1 12-bit Analog-to-Digital Converter (ADC).
– Maximum conversion speed of 1M SPS, with individual sampling time configuration for each channel.
– 8 conversion result registers.
– Built-in 1.2V voltage reference.
– Analog watchdog functionality.
– Built-in temperature sensor.
• Dual voltage comparators.
• Real-time clock and calendar.
– Supports wake-up from Sleep/DeepSleep mode.
• Timers:
– 16-bit advanced control timer, supports 6 input capture, supports 6 pairs of complementary PWM outputs with dead time, supports dual-point comparison, supports PWM phase shifting.
– 2 sets of 16-bit general-purpose timers.
– 3 sets of 16-bit basic timers.
– 1 set of 16-bit low-power timer.
– Independent watchdog timer.
• Communication Interfaces:
– 3 low-power UARTs, supports fractional baud rates, supports low-power data reception, supports configurable level conversion, with 1 supporting LIN.
Communication Interfaces:
– 1 SPI interface at 24Mbit/s, supports 4~16bit width.
– 1 I2C interface at 1Mbit/s, supports configurable level conversion, supports SMBUS.
– IR modulator, programmable duty cycle and polarity.
• Serial Debug Interface (SWD).
• 80-bit unique ID.
• Core board dimensions: 4.32 * 1.78 cm.
For first-time users of the CW32 chip, please check if the KEIL support library (PACK package, also known as SDK, firmware library) is installed, which can be downloaded from the official website.
For a quick start with this core board, there are related tutorials available in the community.
Related code for the core board:
File shared via cloud disk: CW32L011 core board related tutorial materials link: https://pan.baidu.com/s/11cKNtZepmbUyAuO919wikA?pwd=L011 extraction code: L011
Video resources:
ENDPrevious ReviewsREVIEW
[Product Application] CW32 Electric Tool Product Open Source
[Product Solution] Low-Cost Electric Tool Solution Based on CW32L010
[Product Application] Smart Power Bank Based on CW32 (Open Source Solution)
[Product Application] CW-W88 General Control Board Design Scheme (Open Source)
[Product Application] Controller Product Solution for Angle Grinder Based on CW32
[Product Solution] Low-Voltage Brushless Fan Sensorless Controller Based on CW32F030C8
[Product Solution] Brushless DC Hollow Cup Motor Sensorless Control Drive Solution Based on CW32
[Product Solution] Brushless DC Hollow Cup Motor Sensor Control Drive Solution Based on CW32
[Product Solution] Digital Voltage and Current Meter Product Solution Based on CW32F003E4P7
[Product Solution] Low-Cost Industrial Instrument Based on CW32L010
CW32 Ecological Community (WX) Group
Scan to Join QQ GroupGroup 3| 610403240Group 4| 478586307
Get materials and“Developer Support Program”First-hand information
