MSP430G2452数模转换实验，没有串口，只要用LED编码显示电压范围了

pcdoctor

MSP430G2452数模转换实验，没有串口，只要用LED编码显示电压范围了

1. #include <msp430.h>
   
2. 
   
3. 
   
4. void longDelay(void)
   
5. {
   
6.     _delay_cycles(1000000);
   
7. }
   
8. 
   
9. void shortDelay(void)
   
10. {
    
11.     _delay_cycles(250000);
    
12. }
    
13. 
    
14. void longLED_ON(void)
    
15. {
    
16.     P1OUT = 0x01;//LED ON
    
17.     longDelay();
    
18.     P1OUT = 0x00;//LED off
    
19. }
    
20. 
    
21. void shortLED_ON(void)
    
22. {
    
23.     P1OUT = 0x01;   //LED ON
    
24.     shortDelay();
    
25.     P1OUT = 0x00;   //LED off
    
26. }
    
27. 
    
28. void LED0L4S(void)
    
29. {
    
30.     shortLED_ON();
    
31.     shortDelay();
    
32.     shortLED_ON();
    
33.     shortDelay();
    
34.     shortLED_ON();
    
35.     shortDelay();
    
36.     shortLED_ON();
    
37.     longDelay();
    
38. }
    
39. 
    
40. void LED1L3S(void)
    
41. {
    
42.     longLED_ON();
    
43.     shortDelay();
    
44.     shortLED_ON();
    
45.     shortDelay();
    
46.     shortLED_ON();
    
47.     shortDelay();
    
48.     shortLED_ON();
    
49.     longDelay();
    
50. }
    
51. 
    
52. void LED2L2S(void)
    
53. {
    
54.     longLED_ON();
    
55.     shortDelay();
    
56.     longLED_ON();
    
57.     shortDelay();
    
58.     shortLED_ON();
    
59.     shortDelay();
    
60.     shortLED_ON();
    
61.     longDelay();
    
62. }
    
63. 
    
64. void LED3L1S(void)
    
65. {
    
66.     longLED_ON();
    
67.     shortDelay();
    
68.     longLED_ON();
    
69.     shortDelay();
    
70.     longLED_ON();
    
71.     shortDelay();
    
72.     shortLED_ON();
    
73.     longDelay();
    
74. }
    
75. 
    
76. void LED4L0S(void)
    
77. {
    
78.     longLED_ON();
    
79.     shortDelay();
    
80.     longLED_ON();
    
81.     shortDelay();
    
82.     longLED_ON();
    
83.     shortDelay();
    
84.     longLED_ON();
    
85.     longDelay();
    
86. }
    
87. 
    
88. 
    
89. 
    
90. 
    
91. void main(void)
    
92. {
    
93.     WDTCTL = WDTPW | WDTHOLD;       // stop watchdog timer
    
94.     P1DIR |= 0x01;                  // configure P1.0 as output
    
95. 
    
96.     BCSCTL1= CALBC1_1MHZ;
    
97.     DCOCTL = CALDCO_1MHZ;
    
98. 
    
99.     // Set Ref as internal 2.5V, ADC10ON, enable interrupt
    
100.     ADC10CTL0 = SREF_1 + ADC10SHT_2 + REFON + REF2_5V + ADC10ON + ADC10IE;
     
101.     _delay_cycles(30);                // Delay to allow Ref to settle
     
102.    
     
103.     ADC10CTL1 = INCH_5|SHS_0|ADC10DIV_0|ADC10SSEL_0|CONSEQ_0;
     
104.     ADC10AE0 |= BIT5;             // Set P1.5 as A1 input
     
105. 
     
106.     P1DIR |= BIT5;                // Set P1.5 to output direction
     
107. 
     
108. 
     
109. 
     
110.     while(1)
     
111.     {
     
112.         ADC10CTL0 |= ENC+ ADC10SC;                // Sampling and conversion start
     
113.          __bis_SR_register(CPUOFF + GIE);        // LPM0, ADC10_ISR will force exi
     
114. 
     
115.         if (ADC10MEM < 204)
     
116.         {
     
117.             LED0L4S();// ADC10MEM = A1 > 1.0V?
     
118.         }else if (ADC10MEM < 409)
     
119.         {
     
120.             LED1L3S();
     
121.         }else if(  ADC10MEM < 614)
     
122.         {
     
123.             LED2L2S();
     
124.         }else if (ADC10MEM < 818 )
     
125.         {
     
126.             LED3L1S();
     
127.         }else {  //
     
128.             LED4L0S();
     
129.         }
     
130.         longDelay();
     
131.         longDelay();
     
132.         longDelay();
     
133.     }
     
134. 
     
135. }
     
136. 
     
137. // ADC10 interrupt ** routine
     
138. #pragma vector=ADC10_VECTOR
     
139. __interrupt void ADC10_ISR (void)
     
140. {
     
141.   __bic_SR_register_on_exit(CPUOFF);                // Clear CPUOFF bit from 0(SR)
     
142. }

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mmxx2015

纯发送，模拟一个串口不需要太多资源。

1065307738

功能很简单，程序真繁琐。。。显示就不能封成一个函数？比如Display(uint16_t Dat)   用的时候直接调用就行了。参数一填。

ckvlhf

定时器模拟串口也不复杂