Other Parts Discussed in Thread: TCA9539,
Hi, TI engineers,
We connected tca9539 to i2c0 of tda4ve, and there is still a device max96722 on the bus that can be detected normally, but 9539 has not been detected on the bus. We have taken the following troubleshooting actions:
1. Change the 10k resistance of A0/A1 to 0ohm
2. Reduce the speed of the i2c bus to 60kHz
3. The i2c address of another 96722 on the bus is 0x6b (7bit), and it does not appear to have an address conflict issue
4. Reset, SCL, and SDA pins are all 3.2xV
5. We measured the i2c signal and found that tca9639 did not have an ack (we believe the i2c address is 0x74)
All of these are ineffective. Is there any other reason that could lead to this problem?
SDK version:
LINUX: 08_06_01_02
RTOS:08_06_01_03
Regards,
Tahm