6.3.1 Test Mode

The BM83 module can be configured using the Config Tool, and the firmware is programmed by using the isUpdate tool. The following table provides the settings for configuring the BM83 module for Test mode or Application mode.

Table 6-1. BM83 Module – Test Mode Configuration Settings
Pins	Status	Mode
P3_4	Low	Test mode
P3_4	Floating	Application mode

Note: The BM83 module provides Test mode, which allows customers to use existing module manufacturing and testing equipment and flow to test the BM83 modules without reinvesting in new test equipment. New customers are encouraged to use the new RF test modes defined for this device.

Test mode is entered by pulling the PORT3_4 pin to low during start-up/Reset when powered by the ADAP_IN 5V supply.

Test mode allows an external UART host to communicate with the BM83 module using Bluetooth vendor commands over the UART interface. The host can interface with the driver firmware on the BM83 module to perform TX/RX operations and to collect/report Bit Error Rate (BER) and other RF performance parameters. These values can, then, be used to accept/reject the device and/or calibrate the module.