TI AM64x系列Sitara工业处理器开发方案

TI公司的AM64x系列Sitara处理器是工业级混杂ARM处理器,组合了两个Sitara吉比特TSN使能的PRU-ICSSG和多达两个Arm Cortex-A53核,多达4个Cortex-R5F MCU和一个Cortex-M4F MCU.AM64x系列的架构通过高性能的R5F,紧密耦合的存储器组,配置SRAM分割和专用的低等待来回外设通路以便数据在SoC中迅速传输,从而提供业界最好的实时性能.这种架构使得AM64x能处理在伺服驱动所遇到的紧密控制回路,而外设如FSI, GPMC, PWM, Sigma Delta抽取滤波器,绝对编码器接口则有助于这些系统中所采用的不同的架构.双64位Arm® Cortex®-A53处理器子系统工作频率高达1.0GHz,双核Cortex-A53集群具有256KB L2共享SECDED ECC,每个A53核有带SECDED ECC的32KB L1 DCache和带极性保护的32KB L1 ICache;2个双核Arm® Cortex®-R5F MCU子系统工作频率高达800MHz,用于实时处理,双核Arm® Cortex®-R5F支持双核和单核模式,单核Arm® Cortex®-M4F MCU工作频率高达400MHz,具有带SECDED ECC的256KB SRAM.主要用在实时处理和通信独特组合的工业应用如马达驱动和可编逻辑控制器(PLC)以及工业机器人和遥控I/O.本文介绍了AM64x系列主要特性,功能框图, 评估板AM64x GP EVM主要特性,框图和时钟树图,电路图,材料清单和PCB设计图.

AM64x is an extension of Sitaras industrial-grade family of heterogeneous Arm processors. AM64x is built forindustrial applications, such as motor drives and Programmable Logic Controllers (PLCs), which require aunique combination of real-time processing and communications with applications processing. AM64x combinestwo instances of Sitaras gigabit TSN-enabled PRU-ICSSG with up to two Arm Cortex-A53 cores, up to fourCortex-R5F MCUs, and a Cortex-M4F MCU.

AM64x is architected to provide best-in-class real-time performance through the high-performance R5Fs, Tightly-Coupled Memory banks, configurable SRAM partitioning, and dedicated low-latency paths to and fromperipherals for rapid data movement in and out of the SoC. This deterministic architecture allows for AM64x tohandle the tight control loops found in servo drives while the peripherals like FSI, GPMC, PWMs, sigma delta