nRF52832 flash write,read,erase through BLE communication

1. Connect to nRF52832 Development Kit

2.The app send flash read command to nRF52832

3.nRF52832 receive flash read command will display 128 bytes read data from flash 0x3f000

4.The app send flash write command to nRF52832

5.nRF52832 receive flash write command will generate 128 bytes random data and write to flash

6.Read and confirm

7.Write again 

8.Read and confirm 

9.The app send flash erase command

10..nRF52832 receive flash erase command and erase success

11.Read and confirm