📄 f2407adc2.lst
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C:\TIC2XX\C2000\CGTOOLS\BIN\DSPA.EXE -q -v2xx -gs f2407adc2.asm -o ..\obj\f2407adc2.obj -l ..\temp\f2407adc2.lst
TMS320C1x/C2x/C2xx/C5x COFF Assembler Version 7.00 Tue May 6 12:42:12 2003
Copyright (c) 1987-1999 Texas Instruments Incorporated
f2407adc2.asm PAGE 1
1 ;===============================================================================================================
2 ; File name: F2407ADC2.ASM
3 ;
4 ; Originator: Digital Control Systems Group
5 ; Texas Instruments
6 ; Description:
7 ; This file contains source for the ADC Driver control module
8 ; Applicability of these functions is indicated in the Table 1
9 ;=====================================================================================
10 ; History:
11 ;-------------------------------------------------------------------------------------
12 ; 9-15-2000 Release Rev 1.0
13 ;================================================================================
14 ; Applicability: F240,F241,C242,F243,F24xx. (Peripheral dependant).
15 ;
16 ;================================================================================
17 ; T A B L E 1
18 ;================================================================================
19 ; Function Name | Applicability
20 ;================================================================================
21 ; | F240 | F241| F243 | LF2402 | LF2406 | LF2407
22 ; | | | | | |
23 ; F2407_ADC_Update | | | | | | Y
24 ;================================================================================
25
26 ;================================================================================
27 ; Routine Name: ADC DRIVER Routine Type: C Callable
28 ;
29 ; Description:
30 ;
31 ; C prototype : void F2407_ADC_Update(ADCVALS *p);
32 ; History created August 21,2000
33 ;================================================================================
34 ; Definition of ADCVALS
35 ;
36 ;typedef struct {
37 ; int C1_gain;
38 ; int C2_gain;
39 ; int C3_gain;
40 ; int C4_gain;
41 ;
42 ; int C1_out;
43 ; int C2_out;
44 ; int C3_out;
45 ; int C4_out;
46 ;
47 ; int A4_ch_sel;
48 ; int (*init)();
49 ; int (*update)();
50 ; } ADCVALS;
51 ;
52 ;
53 ;
54 .include ..\include\x240x.h
TMS320C1x/C2x/C2xx/C5x COFF Assembler Version 7.00 Tue May 6 12:42:12 2003
Copyright (c) 1987-1999 Texas Instruments Incorporated
f2407adc2.asm PAGE 2
55
56 .def _F2407_ADC_Update
57 ;================================================================================
58
59 0000 _F2407_ADC_Update:
60
61 0001 __F2407_ADC_Update_framesize .set 0001h
62
63
64 ;--------------------------------------------------------------------------
65 ; ARP = AR1
66
67 ; AR1 is stack pointer (SP)
68 ; AR0 is frame pointer (FP)
69
70 0000 8aa0 POPD *+ ; Save the return address from hardware
71 ; stack onto the software stack
72 ; ARP = AR1
73
74 0001 80a0 SAR AR0, *+ ; push AR0(FP). ARP =AR1
75 0002 8180 SAR AR1, * ; *SP = SP. ARP =AR1
76 0003 b001 LAR AR0, #__F2407_ADC_Update_framesize
77 ; FP = size of frame
78 0004 00e8 LAR AR0, *0+, AR0 ; ARP = AR0.
79 ; Allocate frame. AR0 = *AR1
80 ; AR1 = AR1 + AR0.
81 ;--------------------------------------------------------------------------
82 0005 7c03 SBRK #3 ; AR0 -> Passed parameter(i.e. pointer
83 ; to the ADCVALS structure)
84 ; ARP = AR0.
85 ;--------------------------------------------------------------------------
86 0006 0280 LAR AR2,* ; AR2 points to the first structure member
87 ; (i.e. AR2 -> c1_gain). ARP = AR0.
88 ;--------------------------------------------------------------------------
89 0007 0380 LAR AR3,* ; AR3 points to the first structure member
90 ; (i.e. AR3 -> c1_gain). ARP = AR0.
91 ; AR2 -> c1_gain.
92 ;--------------------------------------------------------------------------
93 0008 7803 ADRK #3 ; Let AR0 be again FP.
94 ; AR3 -> c1_gain. AR2 -> c1_gain
95 ;--------------------------------------------------------------------------
96 0009 8b8a MAR *,AR2 ; ARP = AR2.
97 ; AR3 -> c1_gain. AR2 -> c1_gain
98 ;--------------------------------------------------------------------------
99 000a bce1 LDP #ADCL_CNTL1 >>7
100 000b 1028 LACC ADC_RESULT0
101 ; Load Accumulator with
102 ; ADC_RESULT0 status
103 ; ARP = AR2.,AR2 -> c1_gain.
104 ; AR3 -> c1_gain
105 ;--------------------------------------------------------------------------
106 000c be0a SFR ; Right shift Accumulator
107 ; contents by one bit
108 ; ARP = AR2. AR2-> c1_gain.
TMS320C1x/C2x/C2xx/C5x COFF Assembler Version 7.00 Tue May 6 12:42:12 2003
Copyright (c) 1987-1999 Texas Instruments Incorporated
f2407adc2.asm PAGE 3
109 ; AR3 -> c1_gain
110 ;--------------------------------------------------------------------------
111 000d bfb0 AND #7FFFh ; Accumulator = Accumulator & 7FFFh
000e 7fff
112 ; ARP = AR2. AR2-> c1_gain.
113 ; AR3 -> c1_gain
114 ;--------------------------------------------------------------------------
115 000f 7804 ADRK #4 ; Points to c1_out
116 ; ARP = AR2. AR2-> c1_out.
117 ; AR3 -> c1_gain
118 ;--------------------------------------------------------------------------
119 0010 908b SACL *,AR3 ; Accumulator = c1_out
120 ; ARP = AR3. AR2 -> c1_out.
121 ; AR3 -> c1_gain
122 ;--------------------------------------------------------------------------
123 0011 73aa LT *+,AR2 ; TREG = c1_gain in Q13
124 ; ARP = AR2. AR2 -> c1_out.
125 ; AR3 -> c2_gain
126 ;--------------------------------------------------------------------------
127 0012 5480 MPY * ; PREG = c1_gain * c1_out (Q13 x Q15 = Q28)
128 ; ARP = AR2. AR2 -> c1_out.
129 ; AR3 -> c2_gain
130 ;--------------------------------------------------------------------------
131 0013 be03 PAC ; Accumulator = c1_gain * c1_out
132 ; ARP = AR2. AR2 -> c1_out.
133 ; AR3 -> c2_gain
134 ;--------------------------------------------------------------------------
135 0014 9ba0 SACH *+,3 ; Convert final result to Q15
136 ; ARP = AR2. AR2 -> c2_out.
137 ; AR3 -> c2_gain
138 ;--------------------------------------------------------------------------
139 ;Read 2nd converted value
140
141 0015 bce1 LDP #ADCL_CNTL1 >>7
142 0016 1029 LACC ADC_RESULT1
143 ; Load Accumulator with ADC_RESULT1 status
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