大家好,最近接触TI的安全CPU,arm cortex-R4 或R5内核的,TMS570LC4357这款CPU内部有两个cortex-R5内核,锁步运行。而cortex-R5本身有两个内核,是不是可以理解为TMS570LC4357里面有四个核心?锁步运行时,是两个cortex-R5内核锁步,还是cortex-R5里面的两个内核锁步??
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大家好,最近接触TI的安全CPU,arm cortex-R4 或R5内核的,TMS570LC4357这款CPU内部有两个cortex-R5内核,锁步运行。而cortex-R5本身有两个内核,是不是可以理解为TMS570LC4357里面有四个核心?锁步运行时,是两个cortex-R5内核锁步,还是cortex-R5里面的两个内核锁步??
您好,arm cortex-R5本身就有两个核心,而TMS570LC4357的datasheet中有一句话说:
The TMS570LC4357 device integrates two ARM Cortex-R5F floating-point CPUs, operating in lockstep,
which offer an efficient 1.66 DMIPS/MHz, and can run up to 300 MHz providing up to 498 DMIPS. The
device supports the big-endian [BE32] format.
按照您的意思就是,cortex-R5自己的两个核心实现锁步,是不是与datasheet的表述有点冲突呢?
cortex—R4核心的CPU是怎么实现锁步的呢?
期待您的回复,谢谢!
同时期待其他专家的回复,谢谢!!