Hi @JiCheng_ZhangXiang,
I hope you are doing great.
1. how much KByte in the RAM was used in the picture?
52248KB
2. what document defined these section, such as ".bss", ".data", ".text"
Please look at the next link
3. In the ble sdk demos(wireless uart), what's the relationship betwwen stacksize of task and the micro definition "gTotalHeapSize_c" in the file "app_preinclude.h"
I am not sure if I am following your question. The gTotalHeapSize_c is the total heap size for the freeRTOS or the bare-metal operative system. The stack size is the minimum memory that the Bluetooth LE, in this case, needs.
Regards,
Mario