Hi, Im trying to interface a focaltech based touch controller through i2c. The logic voltage of the I2C from the touch is 1.8v
So im using a level shifter TXS0104E. It has 10k internal pull up resistors on all pins. So i dont have any pullups installed on these lines. So when i try to see
if the i2c devices is detected withI get the i2c addresses detected on 0x38 and 0x39. As per the datasheet I found online about focaltech touch controllers,
only 0x38 is the address usually used. And also there is no touch registered nor any INT pin activity. Any pointers will be highly helpful.
So im using a level shifter TXS0104E. It has 10k internal pull up resistors on all pins. So i dont have any pullups installed on these lines. So when i try to see
if the i2c devices is detected with
Code:
sudo i2cdetect -y 1only 0x38 is the address usually used. And also there is no touch registered nor any INT pin activity. Any pointers will be highly helpful.
Statistics: Posted by BalajiNarasimhan — Fri Mar 22, 2024 12:40 pm
