cortex-m7/include/debugtraps.h

#ifndef DBUGTRAP_H
#define DBUGTRAP_H
/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
#include <stdint.h>
 
enum db_trap_acc_t
{
    DB_TRP_ACC_RD = 0x5,
    DB_TRP_ACC_WR = 0x6,
    DB_TRP_ACC_RW = 0x7,
};
 
enum db_trap_mem_width_t
{
    DB_TRP_WIDTH_8 = 0,
    DB_TRP_WIDTH_16 = 1,
    DB_TRP_WIDTH_32 = 2,
};
 
void SetValueWrittenTrap(volatile uint32_t value);
void SetAddressWrittenTrap(uint32_t addr);
void SetAddressWrittenTrap(uint32_t addr, uint32_t value, db_trap_mem_width_t width);
void SetAddressWriteRangeTrap(uint32_t startaddr, uint32_t endaddr, int debugModule = 1);
void SetAddressReadTrap(uint32_t addr);
void SetAddressReadRangeTrap(uint32_t startaddr, uint32_t endaddr);
 
/* Call this macro to monitor writes to a single variable */
/* You may only monitor ONE VARIABLE                      */
/* You may not write to this variable after making this call unless */
/* You first use the BEFORE_WRITING_MONITORED_VAR macro */
#define MONITOR_VAR_WRITES(x) SetAddressWrittenTrap((uint32_t)&x);
 
/* use this before writing to a monitored var */
#define BEFORE_WRITING_MONITORED_VAR(x) \
    asm("cpsid i");                     \
    SetAddressWrittenTrap(0);
 
/* Use this after writing to a monitored var */
#define AFTER_WRITING_MONITORED_VAR(x)   \
    asm(" dsb");                         \
    SetAddressWrittenTrap((uint32_t)&x); \
    asm(" cpsie i");
 
#endif