If you are going to use the module to transfer data with BLE or SPP, I suggest you to use the EZ-Serial FW. It is a UART-BLE bridge and easy to use. You just need to send some AT command through the PUART. Please take a look at the introduction for the EZ-Serial FW:
If you want to use the HCI command in your application, you need to run a bluetooth stack on your host MCU which may need more development.