Certification summary of GY6368A dual-mode Bluetooth chip

Before Bluetooth is certified, many customers will worry that the product will not pass certification. In fact, this is normal. According to our experience in serving customers, only 50% of them can pass the first time, and basically there is a rectification process. But it doesn’t matter, just make rectifications. It’s still very simple to pass certification for pure data Bluetooth.

Any Bluetooth chip produced by chip manufacturers that dares to sell it must pass BQB, which means that the performance must be satisfactory in all test environments and test conditions.

Basically, when it comes to Bluetooth certification, the terms FCC and BQB cannot be avoided. A simple understanding is as follows:

(1). FCC is used to test the performance of radio frequency. The names of the standards in different countries are different.

(2). BQB is a protocol stack for testing Bluetooth. Don’t worry, you can definitely pass it. It’s very simple.

Note before certification: There are only 3 things to do on the hardware:

(1) Be sure to reserve two USB pins, as well as power and ground wires. Please see the reference schematic for details.

(2) Be sure to contact us to burn the corresponding firmware for certification, or get the chip with the corresponding firmware burned for certification and replace it on the board.

(3) Be sure to purchase a “USB to TTL” tool. At the same time, it is necessary to separate the Bluetooth chip and connect it to the external device to form a small independent system.

In short, don’t worry, this is something you can do with money and time.

Regarding the certification of Bluetooth products, there are only three links.

(1), Link 1: We provide the information, testing software, and tools needed for testing.

(2) Step 2: Your company will pay for it, produce the product, and build the PCBA board required for testing, which basically requires about 3pcs.

(3) Step 3: Certification company, they assist in testing and then issue a report.

About FCC certification instructions

Hardware connection-USB to TTL module shape

Normally, there are three mainstream USB to TTL solutions, all of which are available. We strongly recommend the “GY232RL” chip solution. Its anti-interference performance is the best. However, there are several previous customer certifications. Interference from the serial port board itself. Just replace the GY232RL module and the problem will be solved.
A tool for communicating with computer software — USB to TTL for short — as shown in the picture above, connect to your target prototype.

Software description

Install the “USB to TTL” driver on the computer, and then open the FCC fixed frequency test host computer software provided by Geyuan Electronics, as shown in the picture above, the baud rate is set to 115200, and the tool version is 1.0.2.2. Then the testing agency tests its own parameters according to its own needs. After each data transmission, the host will have the feedback message “Sent successfully!” above. If your product does not use ble, then just select the option box on the left “BR/EDR”. Ignore the BLE part directly.

Note: The prototype has entered test mode, so it is no longer a complete functional product and is only used for FCC testing. The mobile phone can’t be connected either.

The TX of the Bluetooth chip is USBDP and the RX is USBDM

USBDP[TX] —– Connect the serial port board —》 RX

USBDM [RX] —– Connect the serial port board — 》 TX

Dongguan Geyuan Electronics Co., Ltd. is a high-tech company specializing in the research and development and sales of voice chips. All personnel have profound industry backgrounds. The company is engaged in voice chip research and peripheral circuit development; at the same time, we formulate voice product development plans for customers with special needs, and implement the plans to complete product development, testing, sound processing, and a series of services including product practical application guidance. . The business scope involves automotive electronics (such as reversing radar\anti-theft devices), multimedia (such as advertising machines), home anti-theft (such as voice prompts), toys, electronic products, etc.