NoC (network on chip) resource network interface of ARM processing unit and drive method of NoC resource network interface

Abstract

The invention relates to a NoC (network on chip) resource network interface of ARM processing unit and a drive method of the NoC resource network interface. The NoC resource network interface of the ARM processing unit (ARM-RNI) is characterized in that an AHB bus interface processing module and transmitting and receiving modules built in an FPGA are connected directly with an AHB bus of the ARM processing unit through a data bus; ARM is provided with a Linux system and a device driver of the FPGA; the ARM-RNI is connected with a route node. The drive method includes: after initializing, mapping a physical address of an input / output buffer of the transmitting and receiving modules to an ARM kernel; transmitting data sent by the ARM to a local route node through the ARM-RNI transmitting module; transmitting the data forwarded by the network-on-chip to the ARM through the ARM-RNI receiving module. The NoC resource network interface and the drive method thereof have the advantages that stable high-speed data communication between the ARM and the FPGA is achieved, fewer FPGA resources are used, the NoC can be expanded in application by the powerful ARM, and the NoC is higher in expansion capacity and network communication capacity.

Description

technical field [0001] The invention relates to the technical field of network-on-chip IP inter-core communication, in particular to a NoC resource network interface of an ARM processor and a driving method thereof. Background technique [0002] With the development of semiconductor process technology, more and more IP cores can be integrated on a single chip. Due to the exclusiveness of the devices on the bus to the bus during communication and the requirement of a single bus for synchronous clocks, the system-on-chip (System-on-chip) -a-Chip) design method can not meet the design requirements. The proposal of Networks on Chip (NoC, Networks on Chip) has completely solved the problems caused by the bus structure from the perspective of architecture. NoC borrows from the communication idea of ​​packet switching in computer networks, transplants computer network technology to chip design, and realizes a large number of IP cores. interconnection. NoC adopts global asynchrono...

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Problems solved by technology

[0005] However, there are no reports of NoC resource network interfaces dedicated to connecting ARM processors.

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