We implemented the HD-PLC technology without using any Echelon components or software. It is a combination of Megachips HD-PLC technology and Gesytec EPOS LON stack. Over the span of 10 years, Gesytec self-developed EPOS stack has been used in tens of thousands of our products together with our own transceiver. EPOS has been an ideal solution for realizing a LON node with HD-PLC as it is designed to use in systems with few resources.
MegaChip's KHM1501 HD-PLC chip runs the LON protocol stack, which is powered by a cost-effective Cortex M0 CPU, a STM32F901 from ST, over a serial interface. The Cortex M0 CPU takes care of actual application and operates the peripherals. This separates the application from both the LON Stack and HD-PLC and avoids unwanted interactions. Ultimately, the application CPU can be chosen according to the requirements of each task to be solved.
The HD-PLC standard core of Gesytec provides these signals:
The digital signals can be used to implement serial protocols such as UART, SPI, I2C and CAN.