extern volatile long *ADCDRV_1ch_Rlt7; // Vout
这个变量在哪里定义的，
ADCDRV_1ch_INIT .macro n
;================================
_ADCDRV_1ch_Rlt:n: .usect "ADCDRV_1ch_Section",2,1,1 ; output terminal 1
; publish Terminal Pointers for access from the C environment
.def _ADCDRV_1ch_Rlt:n:
MOVL XAR2, #ZeroNet ; "ZeroNet" is initialised to 0 in ISR
MOVW DP, #_ADCDRV_1ch_Rlt:n:
MOVL @_ADCDRV_1ch_Rlt:n:, XAR2 ; zero output terminal pointer
.endm
;--------------------------------------------------------------------------------
;=============================
ADCDRV_1ch .macro n
;=============================
MOVW DP, #_ADCDRV_1ch_Rlt:n: ; Load Data Page
MOVL XAR0,@_ADCDRV_1ch_Rlt:n: ; Load Rlt Data Page Pointer in XAR0
MOVW DP, #_AdcResult ; load Data Page to read ADC results
MOV ACC,@_AdcResult.ADCRESULT:n:<<12 ; read and shift the 12 bit ADC result by 12 bits to get Q24 value
MOVL *XAR0,ACC ; store result in output pointer location
.endm
; end of file
