crt_setuserskey(SKEY_POS, skey_tbl_size(skey_demo), skey_demo); // 设定用户自定义软键
#define SKEY_POS 0 /* POSITION */
#define SKEY_PROG 1 /* PROGRAM */
#define SKEY_OFFSET 2 /* OFFSET/SETTING */
#define SKEY_SYSTEM 3 /* SYSTEM */
#define SKEY_MESSAGE 4 /* MESSAGE */
#define SKEY_GRAPH 5 /* GRAPH */
#define SKEY_CUSTOM 6 /* CUSTOM */
#define SKEY_CUSTOM2 7 /* CUSTOM2 */
struct user_softkey {
unsigned int index ; /* soft key index */
int op ; /* operation code */
unsigned int submode ; /* user sub-mode */
unsigned int *string ; /* string */
} ;