Psoc6 SRAM在DS模式中只保留64K的SRAM应该设置哪种模式

你好，
对你的问题，
一）如果你只想要64 K（或块）的SRAM，那么你需要禁用/掉剩下的7块（224 KB）SRAM通过设置pwr_mode比特0。默认情况下所有的SRAM块启用电源。如果SRAM启用（或保留），它进入保留系统何时进入深睡眠。只有当它被禁用，其断电，数据会丢失，它变得不可访问的用户。不得不说的是，为了设备只使用64 KB SRAM，你需要修改你的链接脚本（为CM0 +和CM4）。确保你分配RAM芯块，你打算继续启用。让我知道如果你需要帮助。
2）是的，这是正确的。记住每一32-kb块（cpuss - >；ram0_pwr_macro_ctl [我]）有自己的pwr_mode位，因此只有那些32-kb块已设置为0的pwr_mode位将无法访问。
当做，
Meenakshi Sundaram R



     以下为原文
  Hello,
 
To your questions,
 
1) If you want only 64 K (or 2 blocks) of SRAM, then you will need to disable/power down the remaining 7 blocks (224 KB) of SRAM by setting the PWR_MODE bits to 0. By default all SRAM blocks are enabled on power up. If SRAM is enabled (or in retention), it enters retention when the system enters deep sleep. Only when it is disabled, its power is cut-off and the data will be lost and it becomes not accessible to the user. Having said that, in order for the device to use only 64 KB of SRAM, you will need to modify your linker scripts (for both CM0+ and CM4). Make sure you allocate RAM to cores in the blocks that you intend to keep enabled. Let me know if you need help with that.
 
2) Yes that is correct. Just remember each 32-KB block (CPUSS->RAM0_PWR_MACRO_CTL) has its own PWR_MODE bits and hence only those 32-KB blocks which has the PWR_MODE bits set to 0 will not be accessible.
 
Regards,
Meenakshi Sundaram R