111 lines
3.6 KiB
Plaintext
111 lines
3.6 KiB
Plaintext
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C51 COMPILER V9.59.0.0 DS1302 02/24/2024 21:37:53 PAGE 1
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C51 COMPILER V9.59.0.0, COMPILATION OF MODULE DS1302
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OBJECT MODULE PLACED IN .\Objects\ds1302.obj
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COMPILER INVOKED BY: D:\Keil_v5\C51\BIN\C51.EXE ..\Driver\ds1302.c OPTIMIZE(8,SPEED) BROWSE INCDIR(..\Driver) DEBUG OBJE
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-CTEXTEND PRINT(.\Listings\ds1302.lst) TABS(2) OBJECT(.\Objects\ds1302.obj)
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line level source
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1 /* # DS1302代码片段说明
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2 1. 本文件夹中提供的驱动代码供参赛选手完成程序设计参考。
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3 2. 参赛选手可以自行编写相关代码或以该代码为基础，根据所选单片机类型、<E59E8B><E38081>
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-<2D>行速度和试题
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4 中对单片机时钟频率的要求，进行代码调试和修改。
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5 */
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6 #include "ds1302.h"
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7 #include "REG52.H"
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8 #include "intrins.h"
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9 sbit SCK = P1 ^ 7;
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10 sbit SDA = P2 ^ 3;
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11 sbit RST = P1 ^ 3;
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12 //
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13 void Write_Ds1302(unsigned char temp)
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14 {
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15 1 unsigned char i;
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16 1 for (i = 0; i < 8; i++)
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17 1 {
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18 2 SCK = 0;
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19 2 SDA = temp & 0x01;
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20 2 temp >>= 1;
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21 2 SCK = 1;
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22 2 }
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23 1 }
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24
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25 //
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26 void Write_Ds1302_Byte(unsigned char address, unsigned char dat)
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27 {
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28 1 RST = 0;
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29 1 _nop_();
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30 1 SCK = 0;
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31 1 _nop_();
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32 1 RST = 1;
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33 1 _nop_();
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34 1 Write_Ds1302(address);
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35 1 Write_Ds1302(dat);
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36 1 RST = 0;
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37 1 }
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38
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39 //
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40 unsigned char Read_Ds1302_Byte(unsigned char address)
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41 {
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42 1 unsigned char i, temp = 0x00;
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43 1 RST = 0;
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44 1 _nop_();
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45 1 SCK = 0;
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46 1 _nop_();
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47 1 RST = 1;
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48 1 _nop_();
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49 1 Write_Ds1302(address);
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50 1 for (i = 0; i < 8; i++)
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51 1 {
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52 2 SCK = 0;
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53 2 temp >>= 1;
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C51 COMPILER V9.59.0.0 DS1302 02/24/2024 21:37:53 PAGE 2
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54 2 if (SDA)
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55 2 temp |= 0x80;
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56 2 SCK = 1;
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57 2 }
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58 1 RST = 0;
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59 1 _nop_();
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60 1 SCK = 0;
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61 1 _nop_();
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62 1 SCK = 1;
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63 1 _nop_();
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64 1 SDA = 0;
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65 1 _nop_();
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66 1 SDA = 1;
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67 1 _nop_();
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68 1 return (temp);
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69 1 }
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70 void Set_Rtc(unsigned char *ucRtc)
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71 {
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72 1 unsigned char i;
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73 1 Write_Ds1302_Byte(0x8e, 0x00); // 关闭写保护
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74 1 for (i = 0; i < 3; i++)
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75 1 Write_Ds1302_Byte(0x84 - 2 * i, ucRtc[i]);
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76 1 Write_Ds1302_Byte(0x8e, 0x80); // 打开写保护
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77 1 }
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78 void Read_Rtc(unsigned char *ucRtc)
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79 {
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80 1 unsigned char i;
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81 1 for (i = 0; i < 3; i++)
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82 1 ucRtc[i] = Read_Ds1302_Byte(0x85 - 2 * i);
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83 1 }
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MODULE INFORMATION: STATIC OVERLAYABLE
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CODE SIZE = 220 ----
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CONSTANT SIZE = ---- ----
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XDATA SIZE = ---- ----
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PDATA SIZE = ---- ----
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DATA SIZE = ---- 6
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IDATA SIZE = ---- ----
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BIT SIZE = ---- ----
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END OF MODULE INFORMATION.
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C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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