2017-04-05 32 views
0

我正在使用具有8个通道,由三个touchkey和1个线性传感器组成的自定义板。STMicro STMTouch驱动程序用于线性传感器问题的5通道单电极设计

有8个通道IO,3个采样IO和没有屏蔽配置。三个通道用于三个触摸键。其中五个通道用于线性传感器。

我已经与STM3270B探测板一起工作,它在半端电极设计(LIN_H)中有三个通道设置。我已经完成了该板提供的示例,用于非中断实现。

我已经与STM3207评估板一起工作,它有两个通道设置为两个触摸键。

在我的自定义板上,触摸键完美无缺地工作。五通道线性传感器不能完全工作。所有五个垫确实检测到触摸,但就数据位置而言,它失败。该示例在单个通道中包含所有ios。没有我知道的例子,它使用5个通道分成两个TSC组。它在STMTouch驱动程序用户手册中提到,但我必须再次查看代码示例。

问题是确定传感器值的宏LINEAR_POSITION = MyLinRots [0] .p_Data-> Position有两个结果。如果触摸与组1 IO相关联的两个焊盘中的任一焊盘被触摸,则DETECT宏正确触发,但LINEAR_POSITION值为0x2。同样,如果与组2 IOS相关联的三个焊盘被触摸,DETECT宏将正确触发,但LINEAR_POSITION值为0xC。

我以为这个值会在0到255之间变化,每个pad分割5种方式。我已经看过原始位置而不是缩放位置,但它的行为相似。

这里是我的通道,银行,touchkeys,线性/旋转和对象分布在头文件和源文件的布局。

头:

/* Channel IOs definition */ 
// The three touchkey channels 
#define CHANNEL_0_IO_MSK (TSC_GROUP6_IO2) 
#define CHANNEL_0_GRP_MSK (TSC_GROUP6) 
#define CHANNEL_0_SRC  (TSC_GROUP6_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_0_DEST  (0) /* Index in destination result array */ 

#define CHANNEL_1_IO_MSK (TSC_GROUP6_IO3) 
#define CHANNEL_1_GRP_MSK (TSC_GROUP6) 
#define CHANNEL_1_SRC  (TSC_GROUP6_IDX) 
#define CHANNEL_1_DEST  (1) 

#define CHANNEL_2_IO_MSK (TSC_GROUP6_IO4) 
#define CHANNEL_2_GRP_MSK (TSC_GROUP6) 
#define CHANNEL_2_SRC  (TSC_GROUP6_IDX) 
#define CHANNEL_2_DEST  (2) 

// The five linrot channels 
#define CHANNEL_3_IO_MSK (TSC_GROUP1_IO3) 
#define CHANNEL_3_GRP_MSK (TSC_GROUP1) 
#define CHANNEL_3_SRC  (TSC_GROUP1_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_3_DEST  (3) /* Index in destination result array */ 

#define CHANNEL_4_IO_MSK (TSC_GROUP1_IO4) 
#define CHANNEL_4_GRP_MSK (TSC_GROUP1) 
#define CHANNEL_4_SRC  (TSC_GROUP1_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_4_DEST  (4) /* Index in destination result array */ 

#define CHANNEL_5_IO_MSK (TSC_GROUP2_IO2) 
#define CHANNEL_5_GRP_MSK (TSC_GROUP2) 
#define CHANNEL_5_SRC  (TSC_GROUP2_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_5_DEST  (5) /* Index in destination result array */ 

#define CHANNEL_6_IO_MSK (TSC_GROUP2_IO3) 
#define CHANNEL_6_GRP_MSK (TSC_GROUP2) 
#define CHANNEL_6_SRC  (TSC_GROUP2_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_6_DEST  (6) /* Index in destination result array */ 

#define CHANNEL_7_IO_MSK (TSC_GROUP2_IO4) 
#define CHANNEL_7_GRP_MSK (TSC_GROUP2) 
#define CHANNEL_7_SRC  (TSC_GROUP2_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_7_DEST  (7) /* Index in destination result array */ 



/* Shield IOs definition */ 
#define SHIELD_IO_MSK  (0) // orig (TSC_GROUP7_IO3) we dont have a shield 

/* Banks definition */ 
// The touch key bank 
#define BANK_0_NBCHANNELS (1) 
#define BANK_0_MSK_CHANNELS (CHANNEL_0_IO_MSK | SHIELD_IO_MSK) 
#define BANK_0_MSK_GROUPS (CHANNEL_0_GRP_MSK) 

#define BANK_1_NBCHANNELS (1) 
#define BANK_1_MSK_CHANNELS (CHANNEL_1_IO_MSK | SHIELD_IO_MSK) 
#define BANK_1_MSK_GROUPS (CHANNEL_1_GRP_MSK) 

#define BANK_2_NBCHANNELS (1) 
#define BANK_2_MSK_CHANNELS (CHANNEL_2_IO_MSK | SHIELD_IO_MSK) 
#define BANK_2_MSK_GROUPS (CHANNEL_2_GRP_MSK) 


// The linrot bank 
#define BANK_3_NBCHANNELS (5) 
#define BANK_3_MSK_CHANNELS (CHANNEL_3_IO_MSK | CHANNEL_4_IO_MSK | CHANNEL_5_IO_MSK | CHANNEL_6_IO_MSK| CHANNEL_7_IO_MSK | SHIELD_IO_MSK) 
#define BANK_3_MSK_GROUPS (CHANNEL_3_GRP_MSK | CHANNEL_4_GRP_MSK | CHANNEL_5_GRP_MSK | CHANNEL_6_GRP_MSK | CHANNEL_7_GRP_MSK) 

源文件建立定义

/* define for the linear */ 
#define LINEAR_DETECT ((MyLinRots[0].p_Data->StateId == TSL_STATEID_DETECT) || \ 
         (MyLinRots[0].p_Data->StateId == TSL_STATEID_DEB_RELEASE_DETECT)) 
#define LINEAR_POSITION (MyLinRots[0].p_Data->Position) 


/*============================================================================*/ 
/* Channels                 */ 
/*============================================================================*/ 

/* Source and Configuration (ROM) */ 
CONST TSL_ChannelSrc_T MyChannels_Src[TSLPRM_TOTAL_CHANNELS] = { 

// The three touchkey channels 
    { CHANNEL_0_SRC, CHANNEL_0_IO_MSK, CHANNEL_0_GRP_MSK }, 
    { CHANNEL_1_SRC, CHANNEL_1_IO_MSK, CHANNEL_1_GRP_MSK }, 
    { CHANNEL_2_SRC, CHANNEL_2_IO_MSK, CHANNEL_2_GRP_MSK }, 
// The five linrot channels 
    { CHANNEL_3_SRC, CHANNEL_3_IO_MSK, CHANNEL_3_GRP_MSK }, 
    { CHANNEL_4_SRC, CHANNEL_4_IO_MSK, CHANNEL_4_GRP_MSK }, 
    { CHANNEL_5_SRC, CHANNEL_5_IO_MSK, CHANNEL_5_GRP_MSK }, 
    { CHANNEL_6_SRC, CHANNEL_6_IO_MSK, CHANNEL_6_GRP_MSK }, 
    { CHANNEL_7_SRC, CHANNEL_7_IO_MSK, CHANNEL_7_GRP_MSK } 

}; 

/* Destination (ROM) */ 
CONST TSL_ChannelDest_T MyChannels_Dest[TSLPRM_TOTAL_CHANNELS] = { 
// The three touchkey channels 
    { CHANNEL_0_DEST }, 
    { CHANNEL_1_DEST }, 
    { CHANNEL_2_DEST }, 
// The five linrot channels 
    { CHANNEL_3_DEST }, 
    { CHANNEL_4_DEST }, 
    { CHANNEL_5_DEST }, 
    { CHANNEL_6_DEST }, 
    { CHANNEL_7_DEST }, 
}; 

/* Data (RAM) */ 
TSL_ChannelData_T MyChannels_Data[TSLPRM_TOTAL_CHANNELS]; 

/*============================================================================*/ 
/* Banks                  */ 
/*============================================================================*/ 

/* List (ROM) */ 
CONST TSL_Bank_T MyBanks[TSLPRM_TOTAL_BANKS] = { 
    // The three touchkey bankss 
    {&MyChannels_Src[0], &MyChannels_Dest[0], MyChannels_Data, BANK_0_NBCHANNELS, BANK_0_MSK_CHANNELS, BANK_0_MSK_GROUPS}, 
    {&MyChannels_Src[1], &MyChannels_Dest[1], MyChannels_Data, BANK_1_NBCHANNELS, BANK_1_MSK_CHANNELS, BANK_1_MSK_GROUPS}, 
    {&MyChannels_Src[2], &MyChannels_Dest[2], MyChannels_Data, BANK_2_NBCHANNELS, BANK_2_MSK_CHANNELS, BANK_2_MSK_GROUPS}, 
    // The one linrot bank 
    {&MyChannels_Src[3], &MyChannels_Dest[3], MyChannels_Data, BANK_3_NBCHANNELS, BANK_3_MSK_CHANNELS, BANK_3_MSK_GROUPS} 
}; 

/*============================================================================*/ 
/* Touchkey sensors               */ 
/*============================================================================*/ 

/* Data (RAM) */ 
TSL_TouchKeyData_T MyTKeys_Data[TSLPRM_TOTAL_TKEYS]; 

/* Parameters (RAM) */ 
TSL_TouchKeyParam_T MyTKeys_Param[TSLPRM_TOTAL_TKEYS]; 

/* State Machine (ROM) */ 

void MyTKeys_ErrorStateProcess(void); 
void MyTKeys_OffStateProcess(void); 

CONST TSL_State_T MyTKeys_StateMachine[] = { 
    /* Calibration states */ 
    /* 0 */ { TSL_STATEMASK_CALIB,    TSL_tkey_CalibrationStateProcess }, 
    /* 1 */ { TSL_STATEMASK_DEB_CALIB,   TSL_tkey_DebCalibrationStateProcess }, 
    /* Release states */ 
    /* 2 */ { TSL_STATEMASK_RELEASE,   TSL_tkey_ReleaseStateProcess }, 
#if TSLPRM_USE_PROX > 0 
    /* 3 */ { TSL_STATEMASK_DEB_RELEASE_PROX, TSL_tkey_DebReleaseProxStateProcess }, 
#else 
    /* 3 */ { TSL_STATEMASK_DEB_RELEASE_PROX, 0 }, 
#endif 
    /* 4 */ { TSL_STATEMASK_DEB_RELEASE_DETECT, TSL_tkey_DebReleaseDetectStateProcess }, 
    /* 5 */ { TSL_STATEMASK_DEB_RELEASE_TOUCH, TSL_tkey_DebReleaseTouchStateProcess }, 
#if TSLPRM_USE_PROX > 0 
    /* Proximity states */ 
    /* 6 */ { TSL_STATEMASK_PROX,    TSL_tkey_ProxStateProcess }, 
    /* 7 */ { TSL_STATEMASK_DEB_PROX,   TSL_tkey_DebProxStateProcess }, 
    /* 8 */ { TSL_STATEMASK_DEB_PROX_DETECT, TSL_tkey_DebProxDetectStateProcess }, 
    /* 9 */ { TSL_STATEMASK_DEB_PROX_TOUCH,  TSL_tkey_DebProxTouchStateProcess }, 
#else 
    /* 6 */ { TSL_STATEMASK_PROX,    0 }, 
    /* 7 */ { TSL_STATEMASK_DEB_PROX,   0 }, 
    /* 8 */ { TSL_STATEMASK_DEB_PROX_DETECT, 0 }, 
    /* 9 */ { TSL_STATEMASK_DEB_PROX_TOUCH,  0 }, 
#endif 
    /* Detect states */ 
    /* 10 */ { TSL_STATEMASK_DETECT,    TSL_tkey_DetectStateProcess }, 
    /* 11 */ { TSL_STATEMASK_DEB_DETECT,   TSL_tkey_DebDetectStateProcess }, 
    /* Touch state */ 
    /* 12 */ { TSL_STATEMASK_TOUCH,    TSL_tkey_TouchStateProcess }, 
    /* Error states */ 
    /* 13 */ { TSL_STATEMASK_ERROR,    MyTKeys_ErrorStateProcess }, 
    /* 14 */ { TSL_STATEMASK_DEB_ERROR_CALIB, TSL_tkey_DebErrorStateProcess }, 
    /* 15 */ { TSL_STATEMASK_DEB_ERROR_RELEASE, TSL_tkey_DebErrorStateProcess }, 
    /* 16 */ { TSL_STATEMASK_DEB_ERROR_PROX,  TSL_tkey_DebErrorStateProcess }, 
    /* 17 */ { TSL_STATEMASK_DEB_ERROR_DETECT, TSL_tkey_DebErrorStateProcess }, 
    /* 18 */ { TSL_STATEMASK_DEB_ERROR_TOUCH, TSL_tkey_DebErrorStateProcess }, 
    /* Other states */ 
    /* 19 */ { TSL_STATEMASK_OFF,    MyTKeys_OffStateProcess } 
}; 


/* Methods for "extended" type (ROM) */ 
CONST TSL_TouchKeyMethods_T MyTKeys_Methods = { 
    TSL_tkey_Init, 
    TSL_tkey_Process 
}; 

/* TouchKeys list (ROM) */ 
CONST TSL_TouchKey_T MyTKeys[TSLPRM_TOTAL_TKEYS] = { 
    { &MyTKeys_Data[0], &MyTKeys_Param[0], &MyChannels_Data[CHANNEL_0_DEST], MyTKeys_StateMachine, &MyTKeys_Methods }, 
    { &MyTKeys_Data[1], &MyTKeys_Param[1], &MyChannels_Data[CHANNEL_1_DEST], MyTKeys_StateMachine, &MyTKeys_Methods }, 
    { &MyTKeys_Data[2], &MyTKeys_Param[2], &MyChannels_Data[CHANNEL_2_DEST], MyTKeys_StateMachine, &MyTKeys_Methods } 
}; 

/*============================================================================*/ 
/* Linear and Rotary sensors             */ 
/*============================================================================*/ 

/* Data (RAM) */ 
TSL_LinRotData_T MyLinRots_Data[TSLPRM_TOTAL_LINROTS]; 

/* Parameters (RAM) */ 
TSL_LinRotParam_T MyLinRots_Param[TSLPRM_TOTAL_LINROTS]; 

/* State Machine (ROM) */ 

void MyLinRots_ErrorStateProcess(void); 
void MyLinRots_OffStateProcess(void); 




CONST TSL_State_T MyLinRots_StateMachine[] = { 
    /* Calibration states */ 
    /* 0 */ { TSL_STATEMASK_CALIB,    TSL_linrot_CalibrationStateProcess }, 
    /* 1 */ { TSL_STATEMASK_DEB_CALIB,   TSL_linrot_DebCalibrationStateProcess }, 
    /* Release states */ 
    /* 2 */ { TSL_STATEMASK_RELEASE,   TSL_linrot_ReleaseStateProcess }, 
#if TSLPRM_USE_PROX > 0 
    /* 3 */ { TSL_STATEMASK_DEB_RELEASE_PROX, TSL_linrot_DebReleaseProxStateProcess }, 
#else 
    /* 3 */ { TSL_STATEMASK_DEB_RELEASE_PROX, 0 }, 
#endif 
    /* 4 */ { TSL_STATEMASK_DEB_RELEASE_DETECT, TSL_linrot_DebReleaseDetectStateProcess }, 
    /* 5 */ { TSL_STATEMASK_DEB_RELEASE_TOUCH, TSL_linrot_DebReleaseTouchStateProcess }, 
#if TSLPRM_USE_PROX > 0 
    /* Proximity states */ 
    /* 6 */ { TSL_STATEMASK_PROX,    TSL_linrot_ProxStateProcess }, 
    /* 7 */ { TSL_STATEMASK_DEB_PROX,   TSL_linrot_DebProxStateProcess }, 
    /* 8 */ { TSL_STATEMASK_DEB_PROX_DETECT, TSL_linrot_DebProxDetectStateProcess }, 
    /* 9 */ { TSL_STATEMASK_DEB_PROX_TOUCH,  TSL_linrot_DebProxTouchStateProcess }, 
#else 
    /* 6 */ { TSL_STATEMASK_PROX,    0 }, 
    /* 7 */ { TSL_STATEMASK_DEB_PROX,   0 }, 
    /* 8 */ { TSL_STATEMASK_DEB_PROX_DETECT, 0 }, 
    /* 9 */ { TSL_STATEMASK_DEB_PROX_TOUCH,  0 }, 
#endif 
    /* Detect states */ 
    /* 10 */ { TSL_STATEMASK_DETECT,    TSL_linrot_DetectStateProcess }, 
    /* 11 */ { TSL_STATEMASK_DEB_DETECT,   TSL_linrot_DebDetectStateProcess }, 
    /* Touch state */ 
    /* 12 */ { TSL_STATEMASK_TOUCH,    TSL_linrot_TouchStateProcess }, 
    /* Error states */ 
    /* 13 */ { TSL_STATEMASK_ERROR,    MyLinRots_ErrorStateProcess }, 
    /* 14 */ { TSL_STATEMASK_DEB_ERROR_CALIB, TSL_linrot_DebErrorStateProcess }, 
    /* 15 */ { TSL_STATEMASK_DEB_ERROR_RELEASE, TSL_linrot_DebErrorStateProcess }, 
    /* 16 */ { TSL_STATEMASK_DEB_ERROR_PROX,  TSL_linrot_DebErrorStateProcess }, 
    /* 17 */ { TSL_STATEMASK_DEB_ERROR_DETECT, TSL_linrot_DebErrorStateProcess }, 
    /* 18 */ { TSL_STATEMASK_DEB_ERROR_TOUCH, TSL_linrot_DebErrorStateProcess }, 
    /* Other states */ 
    /* 19 */ { TSL_STATEMASK_OFF,    MyLinRots_OffStateProcess } 
}; 



/* Methods for "extended" type (ROM) */ 
CONST TSL_LinRotMethods_T MyLinRots_Methods = { 
    TSL_linrot_Init, 
    TSL_linrot_Process, 
    TSL_linrot_CalcPos 
}; 

/* Delta Normalization Process 
    The MSB is the integer part, the LSB is the real part 
    Examples: 
    - To apply a factor 1.10: 
    0x01 to the MSB 
    0x1A to the LSB (0.10 x 256 = 25.6 -> rounded to 26 = 0x1A) 
    - To apply a factor 0.90: 
    0x00 to the MSB 
    0xE6 to the LSB (0.90 x 256 = 230.4 -> rounded to 230 = 0xE6) 
*/ 
CONST uint16_t MyLinRot0_DeltaCoeff[3] = {0x0100, 0x0100, 0x0100}; 

/* LinRots list (ROM)*/ 
CONST TSL_LinRot_T MyLinRots[TSLPRM_TOTAL_LINROTS] = { 
    { 
    /* LinRot sensor 0 = S1 */ 
    &MyLinRots_Data[0], 
    &MyLinRots_Param[0], 
    &MyChannels_Data[CHANNEL_3_DEST], // first channel data 
    5, /* Number of channels */ // 
    MyLinRot0_DeltaCoeff, 
// discovery  
// (TSL_tsignPosition_T *)TSL_POSOFF_3CH_LIN_H, 
// GP board  
    (TSL_tsignPosition_T *)TSL_POSOFF_5CH_LIN_M1, 

// Discovery  
// TSL_SCTCOMP_3CH_LIN_H, 
// GP board  
    TSL_SCTCOMP_5CH_LIN_M1, 
// Discovery  
// TSL_POSCORR_3CH_LIN_H, 
// GP board  
    TSL_POSCORR_5CH_LIN_M1, 
    MyLinRots_StateMachine, 
    &MyLinRots_Methods 
    } 
}; 


/*============================================================================*/ 
/* Generic Objects               */ 
/*============================================================================*/ 

/* List (ROM) */ 
CONST TSL_Object_T MyObjects[TSLPRM_TOTAL_OBJECTS] = { 
    // touchkeys 
    { TSL_OBJ_TOUCHKEY, (TSL_TouchKey_T *)&MyTKeys[0] }, 
    { TSL_OBJ_TOUCHKEY, (TSL_TouchKey_T *)&MyTKeys[1] }, 
    { TSL_OBJ_TOUCHKEY, (TSL_TouchKey_T *)&MyTKeys[2] }, 
    // lin rot 
    { TSL_OBJ_LINEAR, (TSL_LinRot_T *)&MyLinRots[0] } 

}; 

/* Group (RAM) */ 
TSL_ObjectGroup_T MyObjGroup = { 
    &MyObjects[0],  /* First object */ 
    TSLPRM_TOTAL_OBJECTS, /* Number of objects */ 
    0x00,     /* State mask reset value */ 
    TSL_STATE_NOT_CHANGED /* Current state */ 
}; 

/*============================================================================*/ 
/* TSL Common Parameters placed in RAM or ROM         */ 
/* --> external declaration in tsl_conf.h          */ 
/*============================================================================*/ 

TSL_Params_T TSL_Params = { 
    TSLPRM_ACQ_MIN, 
    TSLPRM_ACQ_MAX, 
    TSLPRM_CALIB_SAMPLES, 
    TSLPRM_DTO, 
#if TSLPRM_TOTAL_TKEYS > 0 
    MyTKeys_StateMachine, /* Default state machine for TKeys */ 
    &MyTKeys_Methods,  /* Default methods for TKeys */ 
#endif 
#if TSLPRM_TOTAL_LNRTS > 0 
    MyLinRots_StateMachine, /* Default state machine for LinRots */ 
    &MyLinRots_Methods  /* Default methods for LinRots */ 
#endif 
}; 

/* Private functions prototype -----------------------------------------------*/ 

/* Global variables ----------------------------------------------------------*/ 

__IO TSL_tTick_ms_T ECSLastTick; /* Hold the last time value for ECS */ 

/** 
    * @brief Initialize the STMTouch Driver 
    * @param None 
    * @retval None 
    */ 
void tsl_user_Init(void) { 

    TSL_obj_GroupInit(&MyObjGroup); /* Init Objects */ 

    TSL_Init(MyBanks); /* Init acquisition module */ 

    tsl_user_SetThresholds(); /* Init thresholds for each object individually (optional) */ 
} 


/** 
    * @brief Execute STMTouch Driver main State machine 
    * @param None 
    * @retval status Return TSL_STATUS_OK if the acquisition is done 
    */ 
tsl_user_status_t tsl_user_Exec(void) 
{ 
    static uint32_t idx_bank = 0; 
    static uint32_t config_done = 0; 
    tsl_user_status_t status = TSL_USER_STATUS_BUSY; 

    /* Configure and start bank acquisition */ 
    if (!config_done) 
    { 
    TSL_acq_BankConfig(idx_bank); 
    TSL_acq_BankStartAcq(); 
    config_done = 1; 
    } 

    /* Check end of acquisition (polling mode) and read result */ 
    if (TSL_acq_BankWaitEOC() == TSL_STATUS_OK) { 
    TSL_acq_BankGetResult(idx_bank, 0, 0); 
    idx_bank++; /* Next bank */ 
    config_done = 0; 
    } 

    /* Process objects, DxS and ECS 
    Check if all banks have been acquired 
    */ 
    if (idx_bank > TSLPRM_TOTAL_BANKS-1) 
    { 
    /* Reset flags for next banks acquisition */ 
    idx_bank = 0; 
    config_done = 0; 

    /* Process Objects */ 
    TSL_obj_GroupProcess(&MyObjGroup); 

    /* DxS processing (if TSLPRM_USE_DXS option is set) */ 
    TSL_dxs_FirstObj(&MyObjGroup); 

    /* ECS every 100ms */ 
    if (TSL_tim_CheckDelay_ms(100, &ECSLastTick) == TSL_STATUS_OK) 
    { 
     if (TSL_ecs_Process(&MyObjGroup) == TSL_STATUS_OK) 
     { 
     status = TSL_USER_STATUS_OK_ECS_ON; 
     } 
     else 
     { 
     status = TSL_USER_STATUS_OK_ECS_OFF; 
     } 
    } 
    else 
    { 
     status = TSL_USER_STATUS_OK_NO_ECS; 
    } 
    } 
    else 
    { 
    status = TSL_USER_STATUS_BUSY; 
    } 

    return status; 
} 

/** 
    * @brief Set thresholds for each object (optional). 
    * @param None 
    * @retval None 
    */ 
void tsl_user_SetThresholds(void) 
{ 
    /* Example: Decrease the Detect thresholds for the TKEY 0 
    MyTKeys_Param[0].DetectInTh -= 10; 
    MyTKeys_Param[0].DetectOutTh -= 10; 
    */ 
} 

/** 
    * @brief Executed when a sensor is in Error state 
    * @param None 
    * @retval None 
    */ 
void MyTKeys_ErrorStateProcess(void) 
{ 
    /* Add here your own processing when a sensor is in Error state */ 
} 


/** 
    * @brief Executed when a sensor is in Off state 
    * @param None 
    * @retval None 
    */ 
void MyTKeys_OffStateProcess(void) 
{ 
    /* Add here your own processing when a sensor is in Off state */ 
} 

/** 
    * @brief Executed when a sensor is in Error state 
    * @param None 
    * @retval None 
    */ 
void MyLinRots_ErrorStateProcess(void) 
{ 
    /* Add here your own processing when a sensor is in Error state */ 
} 


/** 
    * @brief Executed when a sensor is in Off state 
    * @param None 
    * @retval None 
    */ 
void MyLinRots_OffStateProcess(void) 
{ 
    /* Add here your own processing when a sensor is in Off state */ 
} 


/** 
    * @brief This function handles a tick. 
    * @param None 
    * @retval None 
    */ 
void User_Tick_Management(void) { 


    // tick counters set to zero first time this routine is called 
    static uint32_t tempo_50ms=0; 
    static uint32_t tempo_100ms=0; 
    static uint32_t tempo_200ms=0; 
    static uint32_t tempo_300ms=0; 
    static uint32_t tempo_400ms=0; 
    static uint32_t tempo_500ms=0; 

    // increment each counter, but bound to max count for each 
    tempo_50ms++; 
    tempo_100ms++; 
    tempo_200ms++; 
    tempo_300ms++; 
    tempo_400ms++; 
    tempo_500ms++; 
    tempo_50ms%=50; 
    tempo_100ms%=100; 
    tempo_200ms%=200; 
    tempo_300ms%=300; 
    tempo_400ms%=400; 
    tempo_500ms%=500; 

    // LINEAR_POSITION = MyLinRots[0].p_Data->Position 
    // above is a "scaled" position 
    // MyLinRots[0].p_Data->RawPosition 
    if (LINEAR_DETECT) { 
    // Now we just adjust when we are touching. 
    if (LINEAR_POSITION < 4) { 
     if (tempo_500ms==0) { 
     BSP_LED_Toggle(LED2); 
     } 
    } else if (LINEAR_POSITION < 8) { 
     if (tempo_300ms==0) { 
     BSP_LED_Toggle(LED2); 
     } 
    } else if (LINEAR_POSITION < 12) { 
     if (tempo_100ms==0) { 
     BSP_LED_Toggle(LED2); 
     } 
    } else { // pos >= 12 
     if (tempo_50ms==0) { 
     BSP_LED_Toggle(LED2); 
     } 
    } 

    } 
} 
/** 
    * @brief Display sensors information on LEDs and LCD 
    * @param status TSL user status 
    * @retval None 
    */ 
void Process_Sensors(tsl_user_status_t status) { 

    /* LED1 is ON when TS1 on board is touched */ 
    if (MyTKeys[0].p_Data->StateId == TSL_STATEID_DETECT){ 
    BSP_LED_On(LED3); 
    } else { 
    BSP_LED_Off(LED3); 
    } 

    /* LED2 is ON when TS2 on board is touched */ 
    if (MyTKeys[1].p_Data->StateId == TSL_STATEID_DETECT) { 
    BSP_LED_On(LED4); 
    } else { 
    BSP_LED_Off(LED4); 
    } 


    /* LED3 is ON when TS3 on board is touched */ 
    if (MyTKeys[2].p_Data->StateId == TSL_STATEID_DETECT) { 
    BSP_LED_On(LED5); 
    } else { 
    BSP_LED_Off(LED5); 
    } 


#ifdef isthisused 
    /* ECS information */ 
    switch (status){ 
    case TSL_USER_STATUS_OK_ECS_OFF: 
     BSP_LED_Off(LED5); 
     break; 
    case TSL_USER_STATUS_OK_ECS_ON: 
     BSP_LED_Toggle(LED5); 
     break; 
    default: 
     break; 
    } 
#endif 


    if (LINEAR_DETECT) { 
    BSP_LED_On(LED1); 
    } else{ 
    BSP_LED_Off(LED1); 
    } 

} 

任何帮助理解。

回答

0

原来,线性传感器需要一个IO与传感器的每个组件配对使用一个采样电容器。上面的问题是,hw设计有两组采用两个采样电容的两组io。一组中的取样帽有3个ios,另一组有2个ios。

我改变了两个三个通道组,每个通道组有一个io和一个采样上限。之后代码工作正常。

// The three linrot channels 
#define CHANNEL_0_IO_MSK (TSC_GROUP1_IO3) 
#define CHANNEL_0_GRP_MSK (TSC_GROUP1) 
#define CHANNEL_0_SRC  (TSC_GROUP1_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_0_DEST  (0) /* Index in destination result array */ 

#define CHANNEL_1_IO_MSK (TSC_GROUP2_IO4) 
#define CHANNEL_1_GRP_MSK (TSC_GROUP2) 
#define CHANNEL_1_SRC  (TSC_GROUP2_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_1_DEST  (1) /* Index in destination result array */ 

#define CHANNEL_2_IO_MSK (TSC_GROUP3_IO2) 
#define CHANNEL_2_GRP_MSK (TSC_GROUP3) 
#define CHANNEL_2_SRC  (TSC_GROUP3_IDX) /* Index in source register (TSC->IOGXCR[]) */ 
#define CHANNEL_2_DEST  (2) /* Index in destination result array */