SoMs offer PROFINET CCB and EtherNetIP for Linux environments

SoMs offer PROFINET CCB and EtherNetIP for Linux environments

By eeNews Europe

The SoM-IoT Real Time Communication Module is a cost-effective way to provide PROFINET CCB, EtherNetIP (EtherCAT and CANopen on request) in a single module. Development time can be reduced with the comprehensive tools provided.

The module is ready for use with various Ethernet ports such as RJ45, Mini RJ45 (IP20 applications) as well as M12 or M8 (IP54 applications). The PHYs and the transformers are on board on the SoM, leaving only the SoM module and the Ethernet connectors required to be integrated.

The SPI interface connects the module to the external application processor. Due to the independence between the Module Clock and the clock of the external application processor, the serial transmission with the SPI interface in asynchronous mode is performed by 3 module pins. The application controller as SPI master determines the SPI communication mode. The SPI data format can first be switched between MSB and LSB. The number of bits in each transmission can be changed to any number from 8 to 16 or to 20, 24 or 32 bits. The communication is based on a 128-byte transfer buffer that can transport multiple requests.

The communication is based on a cyclic scheme in which process data can be transmitted cyclically with each request of the application control. Non-real-time communication (RPC) uses the same transport, but processing is decoupled from real-time communication. Real-time data can be exchanged independently of function calls of the API.

The SoM works with any Linux system that provides an SPI interface as well as an I²C interface via the kernel. Furthermore, high precision timers are needed.

PORT offers a SoM EVAL platform which can be tested together with a Raspberry PI under LINUX. The SoM Module EVAL board has a PMOD / ARDUINO interface and can thus be combined with other EVAL boards.

More information

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