3.2.7 Main Entry Function

The main entry function is dp_top defined in dpalg.c. It must be called to initiate the programming operation. Prior to calling the function, a global variable Action_code must be assigned a value as defined in dpuser.h. Action codes are listed in the following codeblock.

#define DP_DEVICE_INFO_ACTION_CODE 1
#define DP_READ_IDCODE_ACTION_CODE 2
#define DP_ERASE_ACTION_CODE 3
#define DP_PROGRAM_ACTION_CODE 4
#define DP_VERIFY_ACTION_CODE 5
#define DP_ENC_DATA_AUTHENTICATION_ACTION_CODE 6
#define DP_VERIFY_DIGEST_ACTION_CODE 7
#define DP_READ_DEVICE_CERTIFICATE_ACTION_CODE 30u
#define DP_ZEROIZE_LIKE_NEW_ACTION_CODE 31u
#define DP_ZEROIZE_UNRECOVERABLE_ACTION_CODE 32u