sp32s3 - I2C transaction unexpected nack detected

[edo76mal]

I have a working project. Simply I changed esp-idf library. from i2c.c to i2c_master. The first (deprecated) works, the last not. The address is rigth. There is something in new library that introduces bugs.

[eriksl]

The only way to make sure is to use a logic analyser. Highly recommended. used it extensively when I made my own I2C implementation (on ESP8266)... But without any other information, I am inclined to say it really works. With the latest stable IDF version and "new" I2C version.

[edo76mal]

I'm sure address in rigth.... with older version it runs. So, changeing only i2c master, it has problems. No hardware changes. No address changes