TI中文支持网Part Number:TDA4VM
请问TDA4VM开发板R5F控制双核锁步的工作原理是什么？
Shine：
请看下面的解释。Lock-Step mode is a mode of operation used in safety critical applications. It consists of 2 copies of the Cortex-R5 logic, which are run offset a couple of cycles from each other. The idea is to protect the system from transient errors (for example a soft error caused by an alpha particle strike). The memories are protected by using ECC schemes (usually capable of detecting double bit errors, or correcting single bit errors), so both cores can reference a single memory. The outputs from both cores are compared every cycle, and if at any point they differ, an error can be signaled (this is usually unrecoverable within the system).
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kakula：
你好，谢谢你的解释。我想了解一下TDA4vm开发板有没有控制R5F锁步的机制，比如是某个硬件或者是某个寄存器的配置可以打开或者关闭R5F的锁步？
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Shine：
请参考下面的FAQ和帖子。https://e2e.ti.com/support/processors-group/processors/f/processors-forum/966564/faq-tda4vm-how-to-check-if-r5f-is-in-lock-step-or-split-modehttps://e2e.ti.com/support/processors-group/processors/f/processors-forum/879680/tda4vm-tda4—enable-mcu-r5f-lock-step-mode
