communicate with BT832X (which is using nRF52832) through I2C using a PIC microcontroller

Question

Hello, 
 I am trying to communicate with a BT832X module ( https://ro.mouser.com/datasheet/2/915/BlueNor_BT832X_datasheets-1518727.pdf ) using a PIC microcontroller ( http://ww1.microchip.com/downloads/en/DeviceDoc/39755B.pdf ), through I2C bus interface. 
 Problem is that I am not sure how to that. I mean there is no information regarding BT832X if it is set by default in Master mode, or Slave mode. As well if it is in Slave mode, which address shall I use to send commands? As well, which is the default communication speed (100 kHz or 400 kHz) 
 What I want to achieve is to send the configuration commands (AT ones) through I2C instead of UART. 
 Pllease can you tell me the default configuration of it,and of course if it is possible to configure ghe device through i2c? 
 Thank you in advance

Jared · Answer

Hi there, 
 Neacsu Cristian said: What am I asking is that we bought some BT832X. I was expecting that they are like black boxes, not to program the MCU myself. I was thinking that they already flashed a configuration, and we just need to communicate with the board through some buses (I2C, UART or so). Shall I configure myself the MCU to act properly??? 
 Yes,. The MCU doesn't get shipped with a specific fw, you can consider it empty with no particular configuration except for what is defined as default state of the different registers as explained in the Product spec . You therefore have to flash the MCU with an application, a good starting point is our examples in the nRF5SDK or the samples in nRF Connect SDK. The difference between the two is explained here . A good sample to start with for your application is the NUS sample which receives data through serial UART and sends it to the connect peer over BLE . 
 regards 
 Jared