43 lines
1.4 KiB
NASM
43 lines
1.4 KiB
NASM
;; TI File $Revision: /main/1 $
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;; Checkin $Date: July 30, 2007 10:29:23 $
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;;###########################################################################
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;;
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;; FILE: ADC_cal.asm
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;;
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;; TITLE: 2833x Boot Rom ADC Cal routine.
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;;
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;; Functions:
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;;
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;; _ADC_cal - Copies device specific calibration data into ADCREFSEL and ADCOFFTRIM registers
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;; Notes:
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;;
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;;###########################################################################
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;; $TI Release: DSP2833x/DSP2823x Header Files V1.20 $
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;; $Release Date: August 1, 2008 $
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;;###########################################################################
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.def _ADC_cal
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.asg "0x711C", ADCREFSEL_LOC
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;-----------------------------------------------
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; _ADC_cal
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;-----------------------------------------------
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;-----------------------------------------------
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; This is the ADC cal routine.This routine is programmed into
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; reserved memory by the factory. 0xAAAA and 0xBBBB are place-
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; holders for calibration data.
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;The actual values programmed by TI are device specific.
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;
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; This function assumes that the clocks have been
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; enabled to the ADC module.
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;-----------------------------------------------
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.sect ".adc_cal"
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_ADC_cal
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MOVW DP, #ADCREFSEL_LOC >> 6
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MOV @28, #0xAAAA ; actual value may not be 0xAAAA
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MOV @29, #0xBBBB ; actual value may not be 0xBBBB
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LRETR
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;eof ----------
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