CHIP 8052 ; Extensions of 8052 ;---------------------------------------------------------; ; additional registers of 89S8252: DP0L REG 82h ; DATA POINTER 0 - LOW BYTE DP0H REG 83h ; DATA POINTER 0 - HIGH BYTE DP1L REG 84h ; DATA POINTER 1 - LOW BYTE DP1H REG 85h ; DATA POINTER 1 - HIGH BYTE WMCON REG 96h ; WATCHDOG AND MEMORY CONTROL REGISTER T2MOD REG C9h ; TIMER 2 MODE CONTROL REGISTER EEMWE EQU 00010000b ; EEPROM Data Memory Write Enable bit EEMEN EQU 00001000b ; EEPROM Access Enable DPS EQU 00000100b ; Data Pointer Register Select WDTRST EQU 00000010b ; Watchdog Timer Reset / EEPROM Ready Flag WDTEN EQU 00000001b ; Watchdog Timer Enable bit ;---------------------------------------------------------; ; memory allocations BUTTONS EQU 2Eh ; keyboard status TMP_BF EQU 2Fh ; temp. bitfield BIT_TRE REG 2Fh.0 ; TIMER REFRESH ENABLE BIT_T0R REG 2Fh.1 ; TIMER 0 READY BIT_WKE REG 2Fh.2 ; WRITE KEY ENABLE ;---------------------------------------------------------; ; EEPROM USG_CNT EQU 0010h ; log base address ;---------------------------------------------------------; ; Ports KBD_DAT REG P0 ; keyboard port ; buttons BUT_1 REG P0.5 ; ones BUT_10 REG P0.4 ; tens BUT_WR REG P0.6 ; write HGL_DAT REG P1 ; LED segments ; LED1 HGL_1_A REG P1.3 ; segment A HGL_1_B REG P1.0 ; segment B HGL_1_C REG P1.4 ; segment C HGL_1_D REG P1.2 ; segment D HGL_1_E REG P1.1 ; segment E HGL_1_F REG P1.6 ; segment F HGL_1_G REG P1.5 ; segment G ;---------------------------------------------------------; ; my defines F1 REG PSW.1 T0_50HZ EQU B0h ; B000h - timer 0 divider for 50Hz ; keyboard KBD_MASK EQU 01110000b ; keyboard mask for 3 buttons KBD_WR_MASK EQU 01000000b ; mask for write button KBD_01_MASK EQU 00100000b ; mask for button +1 KBD_10_MASK EQU 00010000b ; mask for button +10 MAX_USAGE_VALUE EQU 256-50 ; max. number of writes ; error codes ERROR_MB_UNKNOWN EQU 1 ERROR_WRONG_MCU EQU 2 ERROR_WRONG_CRC EQU 3 ERROR_WRONG_ID EQU 4 ERROR_EEPROM_BAD EQU 5