CLM1100_KSZ8721-STM32F405 is an industrial Ethernet development board based on the domestic EtherCAT slave chip CLM1100. It can be used as a six port splitter in the EtherCAT bus. This solution can facilitate users to quickly and flexibly apply it in various industrial automation application scenarios.

1.CLM1100 module

This module contains the CLM1100 chip and the CLM1100 status indicator

2.YT8522 module

This module contains the YT8522 chip, YT8522 status indicator, and RJ45 port

3. Storage module

The storage module adopts EEPROM. The EEPROM model is AT24C16 and the size is 16K.

4. Clock module

The clock module uses a passive crystal oscillator to output a 25MHZ clock.

5.STM32F405 module

This module includes STM32F405 chip, RS485 and CAN protocol extension, external interface, ST-LINK interface and digital input and output module. You can use ST-LINK to connect the ST-LINK interface to burn programs.

6. Power module

The power module supports 3.3V and 5V power supply specifications. When 3.3V voltage is used for power supply, 3.3V and PHY3.3V need to be connected in series.

7. Indicator light

Indicators are divided into power indicator and status indicator.

The power indicator is divided into 5V and 3.3V indicators.

The status indicators are LINKACT, CLKMODE(PREE indicator) and EPROM/RUN(operating status indicator). LINKACT is divided into 0 and 1, representing the status of PHY0 and PHY1 respectively. CLKMODE/PERR is divided into 0 and 1, indicating whether an error occurred in the reception of PHY0 and PHY1.

EPROM/RUN represents the operating status of the device documentation to specify the above indicator light.

Servo drive system

Industrial robot

Servo motor

Servo driver

Frequency changer

Programmable logic controller

IO system

Human-computer interaction

PAC Intelligent controller

CNC controller

Industrial vision