I am trying to have I2C connection established between the Jetson Nano (master) and TI Launchxl-F280969 board (slave). When I run “sudo i2cdetect -y 1” command, it scans different addresses pretty fast and when it gets to the slave address (in this case 0x20), it takes 2-3 seconds and the it cannot detect the address. After this address, it scans other addresses very slowly. I have tried different addresses on slave and everytime Jetson is stuck at the slave address.
I have two Launchxl-F280969 boards and they can communicate pretty well over I2C. However they required to have pull-up resistors on SDA and SCL. I tried 1kohm PU between Launchxl-F280969 and Jetson but it didn’t help.
I guess Jetson tries to call for a device on each address and if it doesn’t see AKC it jumps to the next, so I don’t know what happens that it’s not able to detect the device when it gets to the address.