B91 Generic Starter Kit Hardware Guide


Product Introduction


The guide introduces how to get started with the B91 Kit. The B91 Generic Starter Kit is a hardware platform which can be used to verify the TLSR9x series chipset and develop applications for several 2.4GHz air interface standards including Bluetooth 5.2(Basic data rate (BR), Enhanced data rate (EDR), LE, Indoor positioning and Bluetooth Mesh), Zigbee 3.0, Homekit, 6LoWPAN, Thread and 2.4Ghz proprietary.


B91 Generic Starter Kit - Material List


B91-Generic-Starter-Kit

Item S/N Qty Description
1 TLSR9518ADK80D 1 B91 Development Board, including jumpers
2 TLSR9 DEV KEY 1 JTAG BURING EVK, including DuPont wires
3 Telink Burning Board 1 SWS BURING EVK, including DuPont wires
4 Whip Antenna 1 2.4Ghz antenna
5 USB cable 1 USB A to mini USB
6 Audio cable* 2 3.5mm audio plug to Canon Plug
7 Audio cable* 2 3.5mm audio plug to Canon Jack


*The B91 Generic Starter Kit does not include audio cables (Item #6 #7) as standard. For these add-ons, please consult with the Telink sales team.


Overview


The pictures below illustrate main components and default jumper setting on TLSR9518ADK80D. The default setting enables the following functionality.

  • RF conducted test
  • External Flash with reset button
  • Chip reset button
  • Mini USB interface
  • 2-wire / 4-wire JTAG
  • 4 led, Key matrix up to 4 keys
  • 2 line-in function (Dual Analog microphone supported when switching jumper from microphone path)
  • Dual Digital microphone
  • Stereo line-out

There are detailed descriptions of jumper setting in the Reference Design.


TLSR9518ADK80D Top View

TLSR9518ADK80D-Top-View

TLSR9518ADK80D Bottom View

TLSR9518ADK80D-Bottom-View


Quick Start


IDE for TLSR9 Chips
Burning and Debugging Tools for TLSR9 Series


Power Connection Method


Step 1: The JTAG interface is located to the left of the mini USB interface. Please note “Telink” text orientation.

Step 2: Connect the TLSR9 DEV KEY to the JTAG interface using DuPont wires.

Step 3: With this connection in place, the Telink IDE tool can be used to download FW. Please ensure the DIP button is set correctly.

  • 2 wire JTAG interface is enabled when button 1 is on and button 2 is off.
  • 4 wire JTAG interface is enabled when button 1 is off and button 2 is on.
  • The TLSR9 DEV KEY includes a 5V LDO.
  • It is not necessary to have a USB connection if the TLSR9 DEV KEY is connected to TLSR9518ADK80D via DuPont wires.
  • USB connection via USB cable is only necessary when using the USB function.


connection-chart


RF Test


Test Items:

  • Transmit Power
  • Conducted Harmonics
  • 6dB Channel Bandwidth
  • Power Spectral Density

To verify or develop the application, first turn on the power of the B91 development board, and then connect the RF SMA to the equipment via cable or whip antenna.

Click for more details of The .bin file and user guide for EMI test.


RF-test-chart


Dual Analog Microphone Function


The development board uses external audio input by default. If developers want to use the onboard AMICs, please set jumpers as shown in the picture below.


Dual-analog-microphone-jumper-setting

Jumper setting instructions:

  • Move the jumpers of second to last and third to last on the both sides of the development board to the fourth to last and fifth to last positions respectively. (Move from LINE-IN pins to AMIC pins)


Audio Input Path (Encoding) Test


Test Items:

  • THD+N (Total Hormonic Distortion + Noise)
  • Frequency Response
  • Signal to Noise Ratio

The Driver SDK has incorporated the audio test demo.

Compile the mic_spk demo in USB_DEMO and generate a performance test bin, After burning the bin file, the B91 development board will be recognized as a USB audio device with a combination of microphone and speaker.

mic_spk demo

USB Device Word Lengths Channel Sample Rates
Microphone 16 bits STEREO 16K
Speaker 16 bits STEREO 16K

Keep the default setting of the jumpers, and use an audio analyzer for testing, such as APx525.

audio-input-path-connection-chart


  • The ASIO device is a microphone in the AP Input Configuration.
  • To prevent microphone and speaker from interfering with each other, please disable the other device when enabling one device in the AP ASIO device control panel.

audio_input_path_test


Audio Output Path (Decoding) Test


Test Items:

  • THD+N (Total Hormonic Distortion + Noise)
  • Frequency Response
  • Signal to Noise Ratio

The Driver SDK has incorporated the audio test demo.

Compile the mic_spk demo in USB_DEMO and generate a performance test bin, After burning the bin file, the B91 development board will be recognized as a USB audio device with a combination of microphone and speaker.

mic_spk demo

USB Device Word Lengths Channel Sample Rates
Microphone 16 bits STEREO 16K
Speaker 16 bits STEREO 16K

Keep the default setting of the jumpers, and use an audio analyzer for testing, such as APx525.

audio-output-path-connection-chart


  • the ASIO device is the speaker in the AP Output Configuration.
  • To prevent microphone and speaker from interfering with each other, please disable the other device when enabling one device in the AP ASIO device control panel.

audio_output_path_test


Audio Input/Output Path Demo


Test Items:

  • Audio Encoding
  • Audio Decoding

To enable the audio functionality during the development process, please connect as shown in the picture below.


audio-input-output-path-demo-connection-chart


GPIO Test


  • All GPIO’s of TLSR9518A are connected to pins to facilitate testing.
  • Please refer to design schematics for GPIO pin reference.


Reference Design


Please refer to the Telink wiki to access relevant design files click here