init_dspic30f4013.s

USE CAN Library in PIC30 to transmit and receive CAN Message．

; Initialization Code for dsPIC30F4013, Family: controller control, Package: 44-Pin TQFP 44pins

.include "p30F4013.inc"



; Filter Controls used to Generate Code:

; POR Match Filter OFF

; Provisioned Feature Filter OFF

; Masks are Ignored and uses UnMasked Register Writes

.GLOBAL _VisualInitialization

; Feature=fuses - fuses (DCR) configuration

; B15:14=FSCKM1:0 B10:8=FOS2:0 B4:0=FPR4:0
	config __FOSC, 0xC703

; B15=FWDTEN B5:4=FWPSA1:0 B3:0=FWPSB3:0
	config __FWDT, 0x803F

; B15=MCLREN B7=BOREN B5:4=BORV1:0 B3:0=FPWRT3:0
	config __FBORPOR, 0x87B3

.text

_VisualInitialization:

; Feature=Interrupts - Disable Interrupts during configuration

; clear int flags:

; B15=CN B14=BCL B13=I2C B12=NVM B11=AD B10=U1TX B9=U1RX B8=SPI1

; B7=T3 B6=T2 B5=OC2 B4=IC2 B3=T1 B2=OC1 B1=IC1 B0=INT0
	CLR IFS0

; B15:12=IC6:3 B11=C1 B10=SPI2 B9=U2TX B8=U2RX

; B7=INT2 B6=T5 B5=T4 B4=OC4 B3=OC3 B2=IC8 B1=IC7 B0=INT1
	CLR IFS1

; B12=FLTB B11=FLTA B10=LVD B9=DCI B8=QEI

; B7=PWM B6=C2 B5=INT4 B4=INT3 B3:0=OC8:5
	CLR IFS2
	CLR IEC0
	CLR IEC1
	CLR IEC2

; Feature=Reset - Reset configuration

; B15=TRAPR B14=IOPWR B13=BGST B12=LVDEN B11:8=LVDL3:0

; B7=EXTR B6=SWR B5=SWDTEN B4=WDTO B3=SLEEP B2=IDLE B1=BOR B0=POR
	MOV #0x0503, W0
	MOV W0, RCON

; Feature=DSP - DSP core configuration

; B11=EDT B10:8=DL2:0 B7=SATA B6=SATB B5=SATDW

; B4=ACCSAT B3=IPL3 B2=PSV B1=RND B0=IF
	MOV #0x0020, W0
	MOV W0, CORCON

; Feature=NVM - NVM configuration - not implemented

; Feature=Oscillator - Oscillator configuration

; method to override OSCCON write protect

; B13:12=COSC1:0 B9:8=NOSC1:0
	MOV.B #0x03, W0

	MOV.B #0x78, W1

	MOV.B #0x9A, W2

	MOV.W #OSCCON, W3

	MOV.B W1, [W3+1]

	MOV.B W2, [W3+1]

	MOV.B W0, [W3+1]

; B7:6=POST1:0 B5=LOCK B3=CF B1=LPOSCEN B0=OSWEN
	CLR.B W0

	MOV.B #0x46, W1

	MOV.B #0x57, W2

	MOV.B W1, [W3+0]

	MOV.B W2, [W3+0]

	MOV.B W0, [W3+0]

; Feature=A2D - A2D configuration
                    ; force all A2D ports to digital IO at first
	MOV #0xFFFF, W0
	MOV W0, ADPCFG

; Feature=IOPortB - IO Ports configuration

; B15:0=B15:0
	CLR PORTB                              ; enable
	MOV #0xFFFF, W0                        ; direction in=1
	MOV W0, TRISB

; Feature=IOPortC - IO Ports configuration

; B15:0=C15:0
	CLR PORTC                              ; enable
	MOV #0xFFFF, W0                        ; direction in=1
	MOV W0, TRISC

; Feature=IOPortD - IO Ports configuration

; B15:0=D15:0
	CLR PORTD                              ; enable
	MOV #0xFFFF, W0                        ; direction in=1
	MOV W0, TRISD

; Feature=IOPortF - IO Ports configuration

; B15:0=F15:0
	CLR PORTF                              ; enable
	MOV #0xFFFF, W0                        ; direction in=1
	MOV W0, TRISF

; Feature=CN1 - Input Change Notification configuration

; B15:0=CN15:0
	CLR CNEN1                              ; enable change notification
	CLR CNPU1                              ; enable pullup change notification

; B15:0=CN21:16 B7:0=CN7:0
	CLR CNEN2                              ; enable change notification
	CLR CNPU2                              ; enable pullup change notification

; Feature=Timer1 - Timers configuration
	CLR T1CON                              ; stop timer

; Feature=Timer2 - Timers configuration
	CLR T2CON                              ; stop timer

; Feature=Timer3 - Timers configuration
	CLR T3CON                              ; stop timer

; Feature=Timer4 - Timers configuration
	CLR T4CON                              ; stop timer

; Feature=Timer5 - Timers configuration
	CLR T5CON                              ; stop timer

; Feature=Timer1 - Timers configuration
	CLR TMR1                               ; timer register
	MOV #0xFFFF, W0                        ; period register
	MOV W0, PR1

; Feature=Timer3 - Timers configuration
	CLR TMR3                               ; timer register
	CLR TMR3HLD                            ; timer holding register for 32bit
	MOV #0xFFFF, W0                        ; period register
	MOV W0, PR3

; Feature=Timer2 - Timers configuration
	CLR TMR2                               ; timer register
	MOV #0xFFFF, W0                        ; period register
	MOV W0, PR2

; Feature=Timer5 - Timers configuration
	CLR TMR4                               ; timer register
	MOV #0xFFFF, W0                        ; period register
	MOV W0, PR4

; Feature=Timer4 - Timers configuration
	CLR TMR5                               ; timer register
	CLR TMR5HLD                            ; timer holding register for 32bit
	MOV #0xFFFF, W0                        ; period register
	MOV W0, PR5

; Feature=IC1 - Input Capture configuration

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0
	CLR IC1CON

; Feature=IC2 - Input Capture configuration

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0
	CLR IC2CON

; Feature=IC3 - Input Capture configuration

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0

; Feature=IC4 - Input Capture configuration

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0

; Feature=IC5 - Input Capture configuration

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0

; Feature=IC6 - Input Capture configuration

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0

; Feature=IC7 - Input Capture configuration

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0

; B13=ICSDL B7=ICTMR B6:5=ICI1:0 B4=ICOV B3=ICBNE B2:0=ICM2:0
	CLR IC7CON

; Feature=IC8 - Input Capture configuration
	CLR IC8CON

; Feature=OC1 - Turn off OC1 thru OC8

; associated timers need to be turned off first
	CLR OC1CON

; Feature=OC2 - Turn off OC1 thru OC8

; associated timers need to be turned off first
	CLR OC2CON

; Feature=OC3 - Turn off OC1 thru OC8

; associated timers need to be turned off first
	CLR OC3CON

; Feature=OC4 - Turn off OC1 thru OC8

; associated timers need to be turned off first
	CLR OC4CON

; Feature=OC5 - Turn off OC1 thru OC8

; associated timers need to be turned off first

; Feature=OC6 - Turn off OC1 thru OC8

; associated timers need to be turned off first

; Feature=OC7 - Turn off OC1 thru OC8

; associated timers need to be turned off first

; Feature=OC8 - Turn off OC1 thru OC8

; associated timers need to be turned off first

; Feature=OC1 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0
	CLR OC1RS
	CLR OC1R
	CLR OC1CON

; Feature=OC2 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0
	CLR OC2RS
	CLR OC2R
	CLR OC2CON

; Feature=OC3 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0
	CLR OC3RS
	CLR OC3R
	CLR OC3CON

; Feature=OC4 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0
	CLR OC4RS
	CLR OC4R
	CLR OC4CON

; Feature=OC5 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0

; Feature=OC6 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0

; Feature=OC7 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0

; Feature=OC8 - Output Compare configuration

; OCnRS:  output compare n secondary register

; OCnR:   output compare 1 main register

; OCnCON: B13=OCSIDL B4=OCFLT B3=OCTSEL B2:0=OCM2:0

; Feature=SPI1 - SPI configuration

; SPInBUF:    SPI n buffer

; SPInSTAT:   B15=SPIEN B13=SPISIDL B6=SPITBF B5=SPIROV B0=SPIRBF

; SPInCON(H): B14=FRMEN B13=SPIFSD B11=DISSDO B10=MODE16 B9=SMP B8=CKE

; SPInCON(L): B7=SSEN B6=CKP B5=MSTEN B4:2=SPRE2:0 B1:0=PPRE1:0
	MOV SPI1BUF, W0
	CLR SPI1STAT
	CLR SPI1CON

; Feature=I2C - I2C configuration

; B7:0: receive register bits7:0
	MOV I2CRCV, W0

; B9:0: address register bits9:0
	CLR I2CADD

; B8:0: baud rate generator bits 8:0
	CLR I2CBRG

; B15=ACKSTAT B14=TRSTAT B10=BCL B9=GCSTAT B8=ADD10

; B7=IWCOL B6=I2COV B5=D_A B4=P B3=S B2=R_W B1=RBF B0=TBF
	CLR I2CSTAT

; B15=I2CEN B13=I2CSIDL B12=SCLREL B11=IPMIEN B10=A10M B9=DISSLW B8=SMEN

; B7=GCEN B6=STREN B5=ACKDT B4=ACKEN B3=RCEN B2=PEN B1=RSEN B0=SEN