i’m using Nucleo board F401RE.
i want to access to ETM with code.
- define ETM_CR 0xE0041000 // Address of ETM_CR
- define ETM_LAR 0xE0041FB0 // Address of ETM_LAR
- define UNLOCK 0xC5ACCE55 // Value to unlock the ETM
int main (void)
unsigned int *pointer_1 = (unsigned int *) ETM_LAR; // The pointer_1 will point to the address contained in the variable ETM_LAR
- pointer_1 = UNLOCK; // Cheque UNLOCK to the contents of the memory address ETM_LAR
unsigned int *pointer_2 = (unsigned int *) ETM_CR; // The pointer_2 will point to the address contained in the variable ETM_CR
unsigned int var = 0x0; // I initialize a variable called var
var = *pointer_1; // I assign the contents of pointer_1 to the variable var
printf(“Il contenuto in esadecimale è: %p\n”, *pointer_1); // I expect to see on the terminal the value of UNLOCK