CPU和DMA同时读写APB外设,互相影响性能吗 如题,我在LM4F232Q5HC上,在用CPU和DMA同时读写UART的情况下,DMA完成传输的时间,与DMA单独读写UART传输相同数据量的时间,是一样的。 原来我的理解是DMA和CPU同时作为AHB-lite的master,在通过AHB-APB桥访问外设是,不但会竞争AHB-lite,也会造成APB的分时访问。两个master...
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The AHB to APB bridge is an AHB slave and the only APB master which provides an interface between the highspeed AHB and the low-power APB. Read and write transfers on the AHB are converted into equivalent transfers on the APB. - prajwalgekkouga/AHB-to-AP
countdown implementation. read_sched_clock() should be the same as __apbt_read_clocksource().
The AHB to APB bridge is an AHB slave and the only APB master which provides an interface between the highspeed AHB and the low-power APB. Read and write transfers on the AHB are converted into equivalent transfers on the APB. - sai974/AHB-to-APB-Bridge
> > The read_sched_clock should return the ~value because the clock is a > > countdown implementation. read_sched_clock() should be the same as > > __apbt_read_clocksource(). > > > > Maintain backwards compatibility for "dw-apb-timer-sp" and ...
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8.1 外设系统设计 后续精彩内容,上QQ阅读APP免费读 上QQ阅读看本书,新人免费读10天 登录订阅本章 > 8.2 设计简单的APB外设 后续精彩内容,上QQ阅读APP免费读 上QQ阅读看本书,新人免费读10天 登录订阅本章 >
部件号:AWR2243BOOST 您好, 我有一个简短的问题。 AWR2243APBGABLQ1和 AWR2243APBABLRQ1之间有何区别? 我知道两者都属于 AWR2243P,但AWR2243APBGABLRQ1的“R”是什么意思? 非常感谢! 最佳 稍等 3 年多前 admin3 年多前 TI__Guru***1930900points 请...
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