Скачать или смотреть PCIe precision time measurement PTM support in embedded processors and MCUs

"Pekka Varis (System Applications Manager) - Texas Instruments

PCIe precision time measurement (PTM) is an optional feature in PCIe specifications for time synchronization over standard PCIe connections. This talk will give a brief overview of the underlying technology and how it is implemented in two embedded devices- a Cortex R5 based MCU and a Cortex A53 based processor. Beyond the standard specified support in the PCIe interface we will look at how PTM ties into the rest of the time synchronization infrastructure to be able to further synchronize with other sources like Ethernet IEEE 1588 or how to trigger precise events such as analog to digital (ADC) sampling. We will also look at a couple use cases with the embedded processor being a Linux based PCIe root complex (RC) using a PCIe PTM capable NIC and the processor being a programmable baremetal or RTOS based endpoint (EP) implementing a smart NIC or DPU with time synchronization capability."