afe_639.inc

汽车无钥进入系统设计,基于PIC单片机16F639,包括电路图和源码

#ifndef AFE_639_INC
#define AFE_639_INC



#include SPI.inc


;------------------------------------------------------------------------------+
;                                                                              |
;    Module AFE_639                                                            |
;                                                                              |
;------------------------------------------------------------------------------+
;                                                                              |
;    This class provides access to the Analog Front End.                       |
;                                                                              |
;                                                                              |
;------------------------------------------------------------------------------+
	extern AFE.ConfMap
	extern AFE.Buffer
	extern AFE.LoadCfg, AFE.SafeCfg, AFE.ReadCfg, AFE.WriteCfg, AFE.WriteRegister, AFE.ReadRegister, AFE.WriteNVerifyRegister
	extern AFE.CalcColumnParity
	#define	AFE.Alert			PORTC,2		; SPI Clock Output
	#define	AFE.CMDClampOn		B'00000000'
	#define AFE.CMDClampOff		B'00100000'
	#define AFE.CMDSleep		B'01000000'
	#define AFE.CMDAGCOn		B'01100000'
	#define AFE.CMDAGCOff		B'10000000'
	#define	AFE.CMDSR			B'10100000'
	#define AFE.ModDepth12		B'00110000'
	#define AFE.ModDepth25		B'00100000'
	#define AFE.ModDepth75		B'00010000'
	#define AFE.ModDepth50		B'00000000'
;------------------------------------------------------------------------------+
;                                                                              |
;    AFE.Init()                                                                |
;                                                                              |
;------------------------------------------------------------------------------+
;                                                                              |
;    This macro initialises the AFE                                            |
;                                                                              |
;                                                                              |
;------------------------------------------------------------------------------+
AFE.Init macro
	call AFE.LoadCfg
	call AFE.WriteCfg
;	call AFE.ReadCfg
	AFE.SendCMDSoftReset
	banksel	PORTA			;just debugging
	btfss	AFE.Alert
	goto	$-1
	endm
;------------------------------------------------------------------------------+
;                                                                              |
;    AFE.SendCMDClampON()                                                      |
;                                                                              |
;------------------------------------------------------------------------------+
;                                                                              |
;    This macro sends a clamp on command to the AFE by using the SPI-Bus.      |
;    The clamp on command switches the transistor at the LF-Input to low       |
;    resistance.                                                               |
;    So use this macro for LF-Talkback.                                        |
;                                                                              |
;                                                                              |
;                                                                              |
;    Used SFRs:                                                                |
;                                                                              |
;                                                                              |
;    Calls subroutines:                                                        |
;    SPI.Write                                                                 |
;                                                                              |
;                                                                              |
;    Stacklevel: 1                                                             |
;                                                                              |
;                                                                              |
;    Example:                                                                  |
;    AFE.SendCMDClampOn                                                        |
;                                                                              |
;                                                                              |
;    Description:                                                              |
;        This sends the command                                                |
;                                                                              |
;------------------------------------------------------------------------------+
AFE.SendCMDClampON macro
	banksel SPI.BufferH
	movlw	AFE.CMDClampOn
	movwf	SPI.BufferH
	call	SPI.Write
	endm
;------------------------------------------------------------------------------+
;                                                                              |
;    AFE.SendCMDClampOFF()                                                     |
;                                                                              |
;------------------------------------------------------------------------------+
;                                                                              |
;    This macro sends a clamp off command to the AFE by using the SPI-Bus.     |
;    The clamp on command switches the transistor at the LF-Input to high      |
;    resistance.                                                               |
;    So use this macro for LF-Talkback.                                        |
;                                                                              |
;                                                                              |
;                                                                              |
;    Used SFRs:                                                                |
;                                                                              |
;                                                                              |
;    Calls subroutines:                                                        |
;    SPI.Write                                                                 |
;                                                                              |
;                                                                              |
;    Stacklevel: 1                                                             |
;                                                                              |
;                                                                              |
;    Example:                                                                  |
;    AFE.SendCMDClampOff                                                       |
;                                                                              |
;                                                                              |
;    Description:                                                              |
;        This sends the command                                                |
;                                                                              |
;------------------------------------------------------------------------------+
AFE.SendCMDClampOFF macro
	banksel SPI.BufferH
	movlw	AFE.CMDClampOff
	movwf	SPI.BufferH
	call	SPI.Write
	endm
;------------------------------------------------------------------------------+
;                                                                              |
;    AFE.SendCMDSleep()                                                        |
;                                                                              |
;------------------------------------------------------------------------------+
;                                                                              |
;    This macro sends a Sleep command to the AFE by using the SPI-Bus.         |
;    The AFE will enter the sleep mode.                                        |
;    It will wake up by the next transmission over the SPI-Bus.                |
;                                                                              |
;                                                                              |
;                                                                              |
;    Used SFRs:                                                                |
;                                                                              |
;                                                                              |
;    Calls subroutines:                                                        |
;    SPI.Write                                                                 |
;                                                                              |
;                                                                              |
;    Stacklevel: 1                                                             |
;                                                                              |
;                                                                              |
;    Example:                                                                  |
;    AFE.SendCMDSleep                                                          |
;                                                                              |
;                                                                              |
;    Description:                                                              |
;        This sends the command                                                |
;                                                                              |
;------------------------------------------------------------------------------+
AFE.SendCMDSleep macro
	banksel SPI.BufferH
	movlw	AFE.CMDSleep
	movwf	SPI.BufferH
	call	SPI.Write
	endm
;------------------------------------------------------------------------------+
;                                                                              |
;    AFE.SendCMDAGCPresON()                                                    |
;                                                                              |
;------------------------------------------------------------------------------+
;                                                                              |
;    This macro sends a AGC Preserve On command to the AFE by using the        |
;    SPI-Bus.                                                                  |
;                                                                              |
;                                                                              |
;                                                                              |
;    Used SFRs:                                                                |
;                                                                              |
;                                                                              |
;    Calls subroutines:                                                        |
;    SPI.Write                                                                 |
;                                                                              |
;                                                                              |
;    Stacklevel: 1                                                             |
;                                                                              |
;                                                                              |
;    Example:                                                                  |
;    AFE.SendCMDAGCPresON                                                      |
;                                                                              |
;                                                                              |
;    Description:                                                              |
;        This sends the command                                                |
;                                                                              |