Esp32c3 crash analysis

Instruction access fault, Load access fault, Store access fault

When an application attempts to read or write to an invalid memory location , This will happen CPU abnormal . This kind of invalid memory address can be dumped in the register  MTVAL  Find . If the address is zero , It usually means that the application is trying to dereference a NULL The pointer . If the address is close to zero , It usually means that the application attempts to access the members of a structure , But the pointer of this structure is NULL. If the address is other illegal value （ be not in  0x3fxxxxxx - 0x6xxxxxxx  Within the scope of ）, It may mean that the pointer used to access data is uninitialized or corrupted .

ref：

https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32c3/api-guides/fatal-errors.html#guru-meditation-errors