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XX Author: ZHS (cultural person)
XX Contact: Chat at the end of the article (or enter the group: 471144274 )
XX Copyright statement: Original article, welcome to comment and reprint~ It’s best to tell me when reprinting
What XX has to say: The author's level is limited, and it is inevitable that there are deficiencies. Please correct me!
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Written in the front: Use the BC5 and CSR8670 chips to implement the Bluetooth audio transmitter solution respectively;
1. Select the source project of ADK to compile and download, and then refer to the corresponding source user manual ( BC57E687C and CSR8670 );
2. Pay attention to the USB mode, the hardware should connect BC5: VDD_USB CSR8670: VBUS_CHG_5V pin high;
3. From the user manual, you can see that BC5 supports USB and analogue two modes, while CSR8670 supports USB, analogue and SPDIF (TOSLINK optical fiber) three working modes, as follows:
4. The working mode is configured by psKEY
1） BC5 ：
2）CSR8670：
5. First add a button trigger event to the button.button file, handle the event in button_msg_handler, the device will restart, and then read the configuration of psr, you can switch the mode, as follows:
6. BC5 can support SPDIF output when used as a receiver, but does not support SPDIF input when used as a transmitter;
