Hello,
I have been struggling for some time with random freezes. I am running application with i2c0 Fram and UART1 for transferring/receiving data based on MAX3232. The freezes cause no response from Orange PI (debug UART too), only unplug power helps.
I read that it may be a problem with powering but i tried many USB power adapters 2A, 3A and ATX power (28A) connected to GND and 5v, nothing helps. I have lowered cpu max frequency to 816Mhz and still the same. All necessary data uploaded via armbianmonitor.