Configuring a TinySine Bluetooth amplifier module in Mono mode

The aptX TinySine Bluetooth amplification modules are set by default for stereo output. However, it is possible to switch this output to Mono mode by changing the configuration of the Bluetooth module. Once this change is made, the 2 audio channels (L/R) will be mixed and output on the left channel. This guide details the steps to change this setting.

Needed hardware & software

• TINYSINE TC2050-IDC-NL Connection Cable for Programmer and Debugger
• TINYSINE CSR USB-SPI Bluetooth CSR Chip Programmer
• BlueSuite 2.5
• CSRA64xxx / CSRA63xxx Configuration Tool

Step 1

Connect the CSR USB-CPI programmer and the TC2050-IDC-NL connection cable to your AudioB Plus module, then connect the CSR USB-SPI to your computer using a Mini USB cable. Windows will automatically detect it and install the drivers.

Step 2

Connect the connector of the TC2050-IDC-NL cable to the programming port of the AudioB Plus module. To do this, place the metal alignment pin of the connector in the hole provided for this purpose on the PCB. Press gently to make contact between the pins and the contact points. The blue and red LEDs start flashing alternately.

Step 3

Make sure that the connection is made correctly and then open the CSRA64xxx/CSRA63xxx configuration tool.

Step 4

Select the corresponding chip version from the first drop-down menu at the top left. Select USB SPI (180063) from the second drop-down menu. Then click on Read Device to read the chip configuration data of the AudioB Plus module.

Étape 5

Once the module configuration is detected, select in the left panel :  Configuration Set > Audio > Routing > Audio Plugin Features. A Stereo option is available at the bottom of the window that appears.

Step 6

Uncheck the Stereo box and click on the Write Device button to confirm the configuration change of the Bluetooth module.