STM32下的PT100驱动程序,适用于ucos系统.doc

/*文件名称 : HAL_ADC.h*版 本 : *说 明 : */extern unsigned short int LED1_AdcValue;/extern unsigned short int LED2_AdcValue;/extern unsigned short int PTC100_AdcValue;extern unsigned short int TEST1_AdcValue;extern unsigned short int TEST2_AdcValue;/* 提供给其他C文件调用的函数 */void ADC_ReadInit(void);void AdcPro(void);/*文件名称 : HAL_PT100.c*版 本 : *说 明 : PT100温度传感器驱动*/#include bsp.hconst unsigned short int PT100_Table=8031,8070,8110,8150,8189,8229,8269,8308,8348,8387,/*-50- -41*/8427,8467,8506,8546,8585,8625,8664,8704,8743,8783,/*-40- -31*/8822,8862,8901,8940,8980,9019,9059,9098,9137,9177,/*-30- -21*/9216,9255,9295,9334,9373,9412,9452,9491,9530,9569,/*-20- -11*/9609,9648,9687,9726,9765,9804,9844,9883,9922,9961,/*-10- -1*/10000,10039,10078,10117,10156,10195,10234,10273,10312,10351,/*0- 9*/10390,10429,10468,10507,10546,10585,10624,10663,10702,10740,/*10- 19*/10779,10818,10857,10896,10935,10973,11012,11051,11090,11129,/*20- 29*/11167,11206,11245,11283,11322,11361,11400,11438,11477,11515,/*30- 39*/11554,11593,11631,11670,11708,11747,11786,11824,11863,11901,/*40- 49*/11940,11978,12017,12055,12094,12132,12171,12209,12247,12286,/*50- 59*/12324,12363,12401,12439,12478,12516,12554,12593,12631,12669,/*60- 69*/12708,12746,12784,12822,12861,12899,12937,12975,13013,13052,/*70- 79*/13090,13128,13166,13204,13242,13280,13318,13357,13395,13433,/*80- 89*/13471,13509,13547,13585,13623,13661,13699,13737,13775,13813,/*90- 99*/13851,13888,13926,13964,14002,14040,14078,14116,14154,14191,/*100- 109*/14229,14267,14305,14343,14308,14418,14456,14494,14531,14569,/*110- 119*/14607,14644,14682,14720,14757,14795,14833,14870,14908,14946,/*120- 129*/14983,15021,15058,15096,15133,15171,15208,15246,15286,15321,/*130- 139*/15358,15396,15433,15471,15508,15546,15583,15620,15658,15695,/*140- 149*/15733,15770,15807,15845,15882,15919,15956,15994,16031,16068,/*150- 159*/16105,16143,16180,16217,16254,16291,16329,16366,16403,16440,/*160- 169*/16477,16514,16551,16589,16626,16663,16700,16737,16774,16811,/*170- 179*/16848,16885,16922,16959,16996,17033,17070,17107,17143,17180,/*180- 189*/17217,17054,17294,17328,17365,17402,17438,17475,17512,17549,/*190- 199*/17586,/*200*/;PT100_Driver_T PT100_Driver;/*PT100阻值的计算公式为pt = 8.932*ad/i -k,pt-指PT100在某个温度下的电阻值*100,ad-是读出来的ad值，i-恒流源电流，单位mAk-是一个固定补偿值，指PT100导线的电阻乘以100比如导线固定电阻=1,则k=100.返回值:温度值，单位为0.1。*/unsigned short int pt;short int ReadTempereture(void)/unsigned int i; /unsigned short int pt;unsigned char j,k;short int temp;float a,b,c;#ifdef BOARD_V123/a = (float)PTC100_AdcValue * 45.0 / 1024.0 * 100.0;a = (float)PTC100_AdcValue*1000*9/50/65536*(10+2.1)/10.0; /PTC100_ADC = 20306 原是*(10+2.2)pt = (unsigned short int)(a*100);#else/a = (float)PTC100_AdcValue * 45.0 / 1024.0 * 100.0;a = (float)PTC100_AdcValue*300/32768/0.87; /PTC100_ADC = 20306pt = (unsigned short int)(a*100);#endif#ifdef BOARD_V20170103a = 604.0 * 51 *100 / 32768 / 47;pt = PTC100_AdcValue * a - 5100;#endiffor(j=0; j251; j+)if(pt PT100_Tablej)break;if(j=0)return -500;else if(j=251)return 2000;elsetemp = j-50-1;temp *= 10;for(k=0; k10; k+)if(pt PT100_Tablej-1+(unsigned char)(3.8*k)break;temp += k;return temp;/*函 数 名: RToTemp *功能说明: 电阻温度转换函数*形 参: *R: 输入的电阻值*返 回 值: short int温度*/short int RToTemp(float R)unsigned short int pt;unsigned char j,k;short int temp;pt = (unsigned short int)R*100;for(j=0; j251; j+)if(pt PT100_Tablej)break;if(j=0)return -500;else if(j=251)return 2000;elsetemp = j-50-1;temp *= 10;for(k=0; k10; k+)if(pt DR;DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)PT100AdcValue;DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;DMA_InitStructure.DMA_BufferSize = 64; /64;DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;DMA_InitStructure.DMA_Priority = DMA_Priority_High;DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable; DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;DMA_Init(DMA2_Stream3, &DMA_InitStructure);DMA_Cmd(DMA2_Stream3, ENABLE); void PT100_ADC_Config(void) GPIO_InitTypeDef GPIO_InitStructure;ADC_InitTypeDef ADC_InitStructure;ADC_CommonInitTypeDef ADC_CommonInitStructure; /* 使能 ADC2 and GPIOC clock */RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA , ENABLE);RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC2, ENABLE);/* 配置PA1为模拟输入(ADC123 Channel1) PT100检测输入 */GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOA, &GPIO_InitStructure);/ADC_DeInit();/* ADC Common 配置 -*/ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent; ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_20Cycles; ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;/ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div8; ADC_CommonInit(&ADC_CommonInitStructure);/* ADC2 regular channel 12 con figuration */ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;ADC_InitStructure.ADC_ScanConvMode = DISABLE;ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;/ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;ADC_InitStructure.ADC_NbrOfConversion = 1;/* 1个转换在规则序列中 也就是转换规则序列5 */ ADC_Init(ADC2, &ADC_InitStructure);/*使能DMA请求(单ADC模式) */ADC_DMARequestAfterLastTransferCmd(ADC2, ENABLE);/* 使能 ADC2 DMA */ ADC_DMACmd(ADC2, ENABLE);/* 配置ADC2 规则通道12 channel12 configuration */ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 1, ADC_SampleTime_56Cycles);/* 使能 ADC2 */ADC_Cmd(ADC2, ENABLE);/* 软件使能ADC2转换 */ ADC_SoftwareStartConv(ADC2);void PT100_Config(void)/ PT100_DMA_Config();/PT100_ADC_Config();void PT100Init(void)PT100_Config();PT100_Driver.ReadTemp = ReadTempereture;/unsigned short int PTC100_AdcValue;static unsigned short int OverSampCal1(unsigned short int *adc)unsigned char i;unsigned int j;j=0;for(i=0;i=3;return (unsigned short int)j;static unsigned short int CalAdcValue2(unsigned short int *adc)unsigned char i,j;unsign