main.s43

MSP430 I2C sample code application

;*****************************************************************************/
;*  Example main program showing how to use the file "I2Croutines.s43"       */
;*                                                                           */
;*  developed with IAR Embedded Workbench V2.20                              */
;*                                                                           */
;*  Texas Instruments Deutschland GmbH                                       */
;*  Christian Hernitscheck                                                   */
;*  August 2004                                                              */
;*****************************************************************************/
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;******************************************************************************
#include "msp430x16x.h"

/*--- external functions of file "I2Croutines.s43" --------------------------*/
            extern InitI2C
            extern EEPROM_ByteWrite
            extern EEPROM_RandomRead
            extern EEPROM_CurrentAddressRead
            extern EEPROM_AckPolling

            RSEG    DATA16_Z
Data        DS    6

            RSEG    CODE
/*---------------------------------------------------------------------------*/
main
            MOV    #0300h,SP          ; initialization of Stack pointer
            MOV    #WDTPW+WDTHOLD,&WDTCTL    ; disable Watchdog
            MOV.b  #0FFh,&P1DIR       ; termination of unused pins
            MOV.b  #0FFh,&P2DIR
            MOV.b  #0F5h,&P3DIR
            MOV.b  #0FFh,&P4DIR
            MOV.b  #0FFh,&P5DIR
            MOV.b  #0FFh,&P6DIR

            CALL   #InitI2C           ; Initialize I2C module
            EINT

            MOV    #0000h,R12         ; EEPROM Address
            MOV.b  #012h,R14          ; Data that should be written into EEPROM Address
            CALL   #EEPROM_ByteWrite
            CALL   #EEPROM_AckPolling ; Wait for EEPROM write cycle completion

            MOV    #0001h,R12         ; EEPROM Address
            MOV.b  #034h,R14          ; Data that should be written into EEPROM Address
            CALL   #EEPROM_ByteWrite
            CALL   #EEPROM_AckPolling ; Wait for EEPROM write cycle completion

            MOV    #0002h,R12         ; EEPROM Address
            MOV.b  #056h,R14          ; Data that should be written into EEPROM Address
            CALL   #EEPROM_ByteWrite
            CALL   #EEPROM_AckPolling ; Wait for EEPROM write cycle completion

            MOV    #0003h,R12         ; EEPROM Address
            MOV.b  #078h,R14          ; Data that should be written into EEPROM Address
            CALL   #EEPROM_ByteWrite
            CALL   #EEPROM_AckPolling ; Wait for EEPROM write cycle completion

            MOV    #0004h,R12         ; EEPROM Address
            MOV.b  #09Ah,R14          ; Data that should be written into EEPROM Address
            CALL   #EEPROM_ByteWrite
            CALL   #EEPROM_AckPolling ; Wait for EEPROM write cycle completion

            MOV    #0005h,R12         ; EEPROM Address
            MOV.b  #0BCh,R14          ; Data that should be written into EEPROM Address
            CALL   #EEPROM_ByteWrite
            CALL   #EEPROM_AckPolling ; Wait for EEPROM write cycle completion

            NOP

            MOV    #0000h,R12                  ; define EEPROM Address
            CALL   #EEPROM_RandomRead          ; Read from address 0x0000
            MOV.b  R12,Data+0

            CALL   #EEPROM_CurrentAddressRead  ; Read from address 0x0001
            MOV.b  R12,Data+1

            CALL   #EEPROM_CurrentAddressRead  ; Read from address 0x0002
            MOV.b  R12,Data+2

            CALL   #EEPROM_CurrentAddressRead  ; Read from address 0x0003
            MOV.b  R12,Data+3

            CALL   #EEPROM_CurrentAddressRead  ; Read from address 0x0004
            MOV.b  R12,Data+4

            CALL   #EEPROM_CurrentAddressRead  ; Read from address 0x0005
            MOV.b  R12,Data+5

MainLoop
            JMP    MainLoop

            COMMON  INTVEC
            ORG     RESET_VECTOR
            DW      main

            end