C51 COMPILER V9.59.0.0 ADC 03/09/2021 13:57:36 PAGE 1 C51 COMPILER V9.59.0.0, COMPILATION OF MODULE ADC OBJECT MODULE PLACED IN .\list\ADC.obj COMPILER INVOKED BY: C:\Keil_v5\C51\BIN\C51.EXE ADC.c OPTIMIZE(8,SPEED) BROWSE DEBUG OBJECTEXTEND PRINT(.\list\ADC.lst) -TABS(2) OBJECT(.\list\ADC.obj) line level source 1 /*---------------------------------------------------------------------*/ 2 /* --- STC MCU Limited ------------------------------------------------*/ 3 /* --- STC 1T Series MCU Demo Programme -------------------------------*/ 4 /* --- Mobile: (86)13922805190 ----------------------------------------*/ 5 /* --- Fax: 86-0513-55012956,55012947,55012969 ------------------------*/ 6 /* --- Tel: 86-0513-55012928,55012929,55012966 ------------------------*/ 7 /* --- Web: www.STCMCU.com --------------------------------------------*/ 8 /* --- Web: www.STCMCUDATA.com ---------------------------------------*/ 9 /* --- QQ: 800003751 -------------------------------------------------*/ 10 /* 如果要在程序中使用此代码,请在程序中注明使用了STC的资料及程序 */ 11 /*---------------------------------------------------------------------*/ 12 13 #include "adc.h" 14 15 16 //======================================================================== 17 // 函数: void ADC_Inilize(ADC_InitTypeDef *ADCx) 18 // 描述: ADC初始化程序. 19 // 参数: ADCx: 结构参数,请参考adc.h里的定义. 20 // 返回: none. 21 // 版本: V1.0, 2012-10-22 22 //======================================================================== 23 void ADC_Inilize(ADC_InitTypeDef *ADCx) 24 { 25 1 ADCCFG = (ADCCFG & ~ADC_SPEED_2X16T) | ADCx->ADC_Speed; 26 1 if(ADCx->ADC_Power == ENABLE) ADC_CONTR |= 0x80; 27 1 else ADC_CONTR &= 0x7F; 28 1 if(ADCx->ADC_AdjResult == ADC_RIGHT_JUSTIFIED) ADCCFG |= (1<<5); //AD转换结果右对齐。 29 1 else ADCCFG &= ~(1<<5); //AD转换结果左对齐。 30 1 if(ADCx->ADC_Interrupt == ENABLE) EADC = 1; //中断允许 ENABLE,DISABLE 31 1 else EADC = 0; 32 1 if(ADCx->ADC_Polity > Polity_3) return; //错误 33 1 ADC_Polity(ADCx->ADC_Polity); //指定中断优先级(低到高) Polity_0,Polity_1,Polity_2,Polity_3 34 1 35 1 if(ADCx->ADC_SMPduty > 31) return; //错误 36 1 if(ADCx->ADC_CsSetup > 1) return; //错误 37 1 if(ADCx->ADC_CsHold > 3) return; //错误 38 1 P_SW2 |= 0x80; 39 1 ADCTIM = (ADCx->ADC_CsSetup << 7) | (ADCx->ADC_CsHold << 5) | ADCx->ADC_SMPduty ; //设置 ADC 内部时序，A -DC采样时间建议设最大值 40 1 P_SW2 &= 0x7f; 41 1 } 42 43 44 //======================================================================== 45 // 函数: void ADC_PowerControl(u8 pwr) 46 // 描述: ADC电源控制程序. 47 // 参数: pwr: 电源控制,ENABLE或DISABLE. 48 // 返回: none. 49 // 版本: V1.0, 2012-10-22 50 //======================================================================== 51 void ADC_PowerControl(u8 pwr) 52 { 53 1 if(pwr == ENABLE) ADC_CONTR |= 0x80; C51 COMPILER V9.59.0.0 ADC 03/09/2021 13:57:36 PAGE 2 54 1 else ADC_CONTR &= 0x7f; 55 1 } 56 57 //======================================================================== 58 // 函数: u16 Get_ADCResult(u8 channel) 59 // 描述: 查询法读一次ADC结果. 60 // 参数: channel: 选择要转换的ADC. 61 // 返回: ADC结果. 62 // 版本: V1.0, 2012-10-22 63 //======================================================================== 64 u16 Get_ADCResult(u8 channel) //channel = 0~15 65 { 66 1 u16 adc; 67 1 u8 i; 68 1 69 1 if(channel > ADC_CH15) return 4096; //错误,返回4096,调用的程序判断 70 1 ADC_RES = 0; 71 1 ADC_RESL = 0; 72 1 73 1 ADC_CONTR = (ADC_CONTR & 0xf0) | ADC_START | channel; 74 1 NOP(4); //对ADC_CONTR操作后要4T之后才能访问 75 1 76 1 for(i=0; i<250; i++) //超时 77 1 { 78 2 if(ADC_CONTR & ADC_FLAG) 79 2 { 80 3 ADC_CONTR &= ~ADC_FLAG; 81 3 if(ADCCFG & (1<<5)) //转换结果右对齐。 82 3 { 83 4 adc = ((u16)ADC_RES << 8) | ADC_RESL; 84 4 } 85 3 else //转换结果左对齐。 86 3 { 87 4 #if ADC_RES_12BIT==1 88 4 adc = (u16)ADC_RES; 89 4 adc = (adc << 4) | ((ADC_RESL >> 4)&0x0f); 90 4 #else adc = (u16)ADC_RES; adc = (adc << 2) | ((ADC_RESL >> 6)&0x03); #endif 94 4 } 95 3 return adc; 96 3 } 97 2 } 98 1 return 4096; //错误,返回4096,调用的程序判断 99 1 } 100 101 102 //======================================================================== 103 // 函数: void ADC_int(void) interrupt ADC_VECTOR 104 // 描述: ADC中断函数. 105 // 参数: none. 106 // 返回: none. 107 // 版本: V1.0, 2012-10-22 108 //======================================================================== 109 void ADC_int (void) interrupt ADC_VECTOR 110 { 111 1 ADC_CONTR &= ~ADC_FLAG; 112 1 } 113 114 C51 COMPILER V9.59.0.0 ADC 03/09/2021 13:57:36 PAGE 3 MODULE INFORMATION: STATIC OVERLAYABLE CODE SIZE = 332 ---- CONSTANT SIZE = ---- ---- XDATA SIZE = ---- ---- PDATA SIZE = ---- ---- DATA SIZE = ---- 2 IDATA SIZE = ---- ---- BIT SIZE = ---- ---- END OF MODULE INFORMATION. C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)