jetson tx2 I2C slave implementation

I has got the TX2 operating as a slave on I2C bus, rk3399 is i2c master, The i2c of rk3399 and tx2 is connected by dupont wire, but Rk3399 sends data to tx2, which on r32.1 is capable of sending 50 bytes, and nack interrupts occur over 50 bytes.Less data can only be sent on the r28.2 release. understanding what went wrong?

The kernel version is different for r32.1 and r28.2, not sure if it’s relative.

Dear ShaneCCC,
On the r32.1 release, i2c are used to send data from rk3399 to tx2, which is unstable and will make mistakes. How to find the reason?