SRAM一般做缓存，速度在半导体存储器中仅次于寄存器，所以做的比较小，电脑上缓存一般就是KB为单位的；RAM对应起来就是我们通常所说的内存了，现在基本都上G了，速度比ROM很快速度：寄存器>缓存>RAM内存>ROM cache是一个高速小容量的临时存储器，可以用高速的静态存储器芯片实现，或者集成到CPU芯片内部，存...
2^15 = 32K , __RAM_NO_CACHEABLE_SIZE = 0xF; /* 32kbyte in power of 2 */,It is not match my ld file,Refer to the attachment#elserbar[5]=(uint32)__INT_SRAM_START;/*disable subregion 7-8*/rasr[5]=((uint32)0x030B0001UL)|(((uint32)__RAM_CACHEABLE_SIZE - 1) << 1...
int_sram_no_cacheable : ORIGIN = 0x2040F100, LENGTH = 0x00006E00 int_sram_results : ORIGIN = 0x20415F00, LENGTH = 0x00000100int_sram_shareable : ORIGIN = 0x20416000, LENGTH = 0x00002000 ram_rsvd2 : ORIGIN = 0x20418000, LENGTH = 0 /* End of SRAM */...
如果使用了可以使用DMA的SRAM,需要注意开启了CACHE,记得要配置MPU然后选择为MPU_ACCESS_NOT_CACHEABLE不可使用cahe,所以可以将DMA的数据单独指定到另一块SRAM上,然后将该RAM设置为MPU_ACCESS_NOT_CACHEABLE就可以了,否则DMA数据很有可能是不更新的。 开启CACHE的情况下操作内部flash的时候,也要注意清除D-CACHE,否则写...
0Caching Mode & Read/Write Policy CDCaching Methods Uncacheable/Strong Uncacheable–Memory locations not cached Write Combining–Memory locations not cached – Writes are combined to reduce memory traffic Write Through–Memory locations are cached – Reads come from cache line; may cause cache ...
When reliability is required, there is no straightforward solutions and meeting the objectives of reliable multicast is not an easy task. Active networks open a new perspective in providing more efficient solutions for the problem of reliability. In this context, routers are able to perform ...
therefore it "finishes" before it actually finishes writing to disk. The kernel will handle the I/O in the background from cache (you can confirm this with tools such as iotop). The final writes here ought to pretty much saturate your sequential writes. Writes begin happening in the back...
VPN feature is not available in India, China, Syria or North Korea. McAfee is not compatible with Windows 11 in S mode. You'll need to permanently switch out of S mode. There's no charge to switch out of S mode, but you won't be able to turn it back on....
However, traditional DRAM management research divides DRAM into two parts to accommodate data buffer and mapping cache, but there are no efficient unified DRAM management algorithms. Furthermore, the increasing capacity of NAND flash chip requires more mapping cache space, which urges researchers to ...
Storage capacityLarger: Connects directly to CPU bus; volatile storage measured in GBsSmaller: Acts as cache; storage measured in MBs VolatilityVolatile: Must have active power supply plus frequent charges while activeVolatile: Does not require additional charges while it is receiving power but event...