📄 prac9_max3485.lst
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59 958 sfrb CACTL1 = (0x0059);
959
5a 960 sfrb CACTL2 = (0x005A);
961
5b 962 sfrb CAPD = (0x005B);
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1a0 1001 sfrw ADC12CTL0 = (0x01A0);
1002
1a2 1003 sfrw ADC12CTL1 = (0x01A2);
1004
1a4 1005 sfrw ADC12IFG = (0x01A4);
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1a6 1007 sfrw ADC12IE = (0x01A6);
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1a8 1009 sfrw ADC12IV = (0x01A8);
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140 1018 sfrw ADC12MEM0 = (0x0140);
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142 1020 sfrw ADC12MEM1 = (0x0142);
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144 1022 sfrw ADC12MEM2 = (0x0144);
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146 1024 sfrw ADC12MEM3 = (0x0146);
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148 1026 sfrw ADC12MEM4 = (0x0148);
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14a 1028 sfrw ADC12MEM5 = (0x014A);
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14c 1030 sfrw ADC12MEM6 = (0x014C);
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14e 1032 sfrw ADC12MEM7 = (0x014E);
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150 1034 sfrw ADC12MEM8 = (0x0150);
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152 1036 sfrw ADC12MEM9 = (0x0152);
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154 1038 sfrw ADC12MEM10 = (0x0154);
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156 1040 sfrw ADC12MEM11 = (0x0156);
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158 1042 sfrw ADC12MEM12 = (0x0158);
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15a 1044 sfrw ADC12MEM13 = (0x015A);
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15c 1046 sfrw ADC12MEM14 = (0x015C);
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15e 1048 sfrw ADC12MEM15 = (0x015E);
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80 1057 sfrb ADC12MCTL0 = (0x0080);
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81 1059 sfrb ADC12MCTL1 = (0x0081);
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82 1061 sfrb ADC12MCTL2 = (0x0082);
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83 1063 sfrb ADC12MCTL3 = (0x0083);
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84 1065 sfrb ADC12MCTL4 = (0x0084);
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85 1067 sfrb ADC12MCTL5 = (0x0085);
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86 1069 sfrb ADC12MCTL6 = (0x0086);
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87 1071 sfrb ADC12MCTL7 = (0x0087);
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88 1073 sfrb ADC12MCTL8 = (0x0088);
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89 1075 sfrb ADC12MCTL9 = (0x0089);
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8a 1077 sfrb ADC12MCTL10 = (0x008A);
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8b 1079 sfrb ADC12MCTL11 = (0x008B);
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8c 1081 sfrb ADC12MCTL12 = (0x008C);
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8d 1083 sfrb ADC12MCTL13 = (0x008D);
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8e 1085 sfrb ADC12MCTL14 = (0x008E);
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8f 1087 sfrb ADC12MCTL15 = (0x008F);
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2 ;-----------------------------------------------------------------
3 ;
4 ;
5 ;
6 ;
7 ;
8
9 ;----------------------------------------------------------------
10 MSP430F449
11 ; -----------------
12 ; /|\| XIN|-
13 ; | | | 32768Hz
14 ; --|RST XOUT|-
15 ; | |
16 ; | P2.4|-----------> DI
17 ; | |2400- 8N1
18 ; | P2.5|<----------- RO
19 ;
20 ;---------------------------------------------------------------
21 ;
22 ;---------------------------------------------------------------
202 23 sr_send_buffer equ 202h;
204 24 sr_reci_buffer equ 204h;
25 ;---------------------------------------------------------------
26 ;
27 ;-----------------------------------------------------------------
28 ;
29 ;
30 ;-----------------------------------------------------------------
31 .pseg code, abs=01100h
32
1100 3140000a 33 RESET mov.w #0a00h,SP
1104 b240805a2001 34 Stopwdt mov.w #(0x5A00)+(0x0080),&WDTCTL
110a b0121411 35 call #init_sr485
110e 32d01000 36 bis.w #(0x0010),SR
1112 3041 37 ret
38 ;-------------------------------------------------------------------------
39 ;
40 ;-------------------------------------------------------------------------
41 init_sr485
1114 f2f0bf005300 42 and.b #0bfh,&FLL_CTL0 ;
111a d2d37000 43 bis.b #01h,&U0CTL ;
111e 0343 44 nop
1120 0343 45 nop
1122 0343 46 nop
1124 f24010007000 47 mov.b #(0x10),&U0CTL ;
112a f24010007100 48 mov.b #10h,&U0TCTL ;
1130 f2400d007400 49 mov.b #0dh,&U0BR0 ;
1136 c2437500 50 mov.b #00h,&U0BR1 ;
113a f2406b007300 51 mov.b #6bh,&U0MCTL ;
1140 f2d0c0000400 52 bis.b #(0x80)+(0x40),&ME1 ; Enable USART0 TXD/RXD
1146 f2d040000000 53 bis.b #(0x40),&IE1 ; Enable USART0 RX interrupt
114c f2f07f000000 54 and.b #7fh,&IE1 ;unable USART0 tx interrupt
1152 f2d010002a00 55 bis.b #10h,&P2DIR ;p2.4 out
1158 f2d030002e00 56 bis.b #30h,&P2SEL ;P2.4,5=USART0 TXD/RXT
115e e2d32200 57 bis.b #02h,&P1DIR ;p1.1 out
1162 f2f0fd002600 58 and.b #0fdh,&P1SEL ;p1.1 I/O
1168 f2f0fd002100 59 and.b #0fdh,&P1OUT ;p1.1=low,MAX3485 RO enable
116e 32d2 60 eint
1170 3041 61 ret
62 ;------------------------------------------------------------------
63 ;
64 ;
65 ;
66 ;
67 ;
68 ;
69 ;------------------------------------------------------------------
70 sr3485_send
1172 e2d32100 71 bis.b #02h,&P1OUT ;
1176 d24202027700 72 mov.b &sr_send_buffer,&U0TXBUF ;
117c 59427100 73 Byte_sended mov.b &U0TCTL,R9
1180 59f3 74 and.b #01h,r9
1182 5993 75 cmp.b #01h,r9
1184 fb23 76 jne Byte_sended ;
1186 f2f0fe007100 77 and.b #0feh,&U0TCTL ;
118c f2f0fd002100 78 and.b #0fdh,&P1OUT ;
1192 3041 79 ret
80 ;--------------------------------------------------------------
81 ;
82 ;
83 ;--------------------------------------------------------------
84 sr485_reci_int
1194 d24276000402 85 mov.b &U0RXBUF,&sr_reci_buffer
119a d24204020202 86 mov.b &sr_reci_buffer,&sr_send_buffer
11a0 b0127211 87 call #sr3485_send
11a4 0013 88 reti
89 ;-------------------------------------------------------------------
90 ;
91 ;-------------------------------------------------------------------
92 .pseg reset_vector, abs=0FFFEH
fffe 0011 93 .data RESET
94 .pseg rx_vector, abs=0FFF2H
fff2 9411 95 .data sr485_reci_int
96 END
97
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