ACMPEMLIB
Detailed Description
Analog comparator (ACMP) Peripheral API.
The Analog Comparator is used to compare the voltage of two analog inputs, with a digital output indicating which input voltage is higher. Inputs can either be one of the selectable internal references or from external pins. Response time and thereby also the current consumption can be configured by altering the current supply to the comparator.
The ACMP is available down to EM3 and is able to wakeup the system when input signals pass a certain threshold. Use ACMP_IntEnable to enable an edge interrupt to use this functionality.
Here is an example of how to use the em_acmp.h API for comparing an input pin to an internal 2.5V reference voltage.
- Note
- The ACMP can also be used to compare two separate input pins.
The ACMP also contains specialized hardware for capacitive sensing. This module contains the function ACMP_CapsenseInit for initializing the ACMP for capacitive sensing and the function ACMP_CapsenseChannelSet for selecting the current capsense channel.
For applications that require capacitive sensing it is recommended to use a library like cslib which is provided by Silicon Labs.
Data Structures |
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struct | ACMP_CapsenseInit_TypeDef |
struct | ACMP_Init_TypeDef |
struct | ACMP_VAConfig_TypeDef |
struct | ACMP_VBConfig_TypeDef |
Macros |
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#define | ACMP_CAPSENSE_INIT_DEFAULT |
#define | ACMP_INIT_DEFAULT |
#define | ACMP_VACONFIG_DEFAULT |
#define | ACMP_VBCONFIG_DEFAULT |
Enumerations |
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enum |
ACMP_Accuracy_TypeDef
{
acmpAccuracyLow = _ACMP_CTRL_ACCURACY_LOW, acmpAccuracyHigh = _ACMP_CTRL_ACCURACY_HIGH } |
enum |
ACMP_CapsenseResistor_TypeDef
{
acmpResistor0 = _ACMP_INPUTSEL_CSRESSEL_RES0, acmpResistor1 = _ACMP_INPUTSEL_CSRESSEL_RES1, acmpResistor2 = _ACMP_INPUTSEL_CSRESSEL_RES2, acmpResistor3 = _ACMP_INPUTSEL_CSRESSEL_RES3, acmpResistor4 = _ACMP_INPUTSEL_CSRESSEL_RES4, acmpResistor5 = _ACMP_INPUTSEL_CSRESSEL_RES5, acmpResistor6 = _ACMP_INPUTSEL_CSRESSEL_RES6, acmpResistor7 = _ACMP_INPUTSEL_CSRESSEL_RES7 } |
enum |
ACMP_Channel_TypeDef
{
acmpInputAPORT0XCH0 = _ACMP_INPUTSEL_POSSEL_APORT0XCH0, acmpInputAPORT0XCH1 = _ACMP_INPUTSEL_POSSEL_APORT0XCH1, acmpInputAPORT0XCH2 = _ACMP_INPUTSEL_POSSEL_APORT0XCH2, acmpInputAPORT0XCH3 = _ACMP_INPUTSEL_POSSEL_APORT0XCH3, acmpInputAPORT0XCH4 = _ACMP_INPUTSEL_POSSEL_APORT0XCH4, acmpInputAPORT0XCH5 = _ACMP_INPUTSEL_POSSEL_APORT0XCH5, acmpInputAPORT0XCH6 = _ACMP_INPUTSEL_POSSEL_APORT0XCH6, acmpInputAPORT0XCH7 = _ACMP_INPUTSEL_POSSEL_APORT0XCH7, acmpInputAPORT0XCH8 = _ACMP_INPUTSEL_POSSEL_APORT0XCH8, acmpInputAPORT0XCH9 = _ACMP_INPUTSEL_POSSEL_APORT0XCH9, acmpInputAPORT0XCH10 = _ACMP_INPUTSEL_POSSEL_APORT0XCH10, acmpInputAPORT0XCH11 = _ACMP_INPUTSEL_POSSEL_APORT0XCH11, acmpInputAPORT0XCH12 = _ACMP_INPUTSEL_POSSEL_APORT0XCH12, acmpInputAPORT0XCH13 = _ACMP_INPUTSEL_POSSEL_APORT0XCH13, acmpInputAPORT0XCH14 = _ACMP_INPUTSEL_POSSEL_APORT0XCH14, acmpInputAPORT0XCH15 = _ACMP_INPUTSEL_POSSEL_APORT0XCH15, acmpInputAPORT0YCH0 = _ACMP_INPUTSEL_POSSEL_APORT0YCH0, acmpInputAPORT0YCH1 = _ACMP_INPUTSEL_POSSEL_APORT0YCH1, acmpInputAPORT0YCH2 = _ACMP_INPUTSEL_POSSEL_APORT0YCH2, acmpInputAPORT0YCH3 = _ACMP_INPUTSEL_POSSEL_APORT0YCH3, acmpInputAPORT0YCH4 = _ACMP_INPUTSEL_POSSEL_APORT0YCH4, acmpInputAPORT0YCH5 = _ACMP_INPUTSEL_POSSEL_APORT0YCH5, acmpInputAPORT0YCH6 = _ACMP_INPUTSEL_POSSEL_APORT0YCH6, acmpInputAPORT0YCH7 = _ACMP_INPUTSEL_POSSEL_APORT0YCH7, acmpInputAPORT0YCH8 = _ACMP_INPUTSEL_POSSEL_APORT0YCH8, acmpInputAPORT0YCH9 = _ACMP_INPUTSEL_POSSEL_APORT0YCH9, acmpInputAPORT0YCH10 = _ACMP_INPUTSEL_POSSEL_APORT0YCH10, acmpInputAPORT0YCH11 = _ACMP_INPUTSEL_POSSEL_APORT0YCH11, acmpInputAPORT0YCH12 = _ACMP_INPUTSEL_POSSEL_APORT0YCH12, acmpInputAPORT0YCH13 = _ACMP_INPUTSEL_POSSEL_APORT0YCH13, acmpInputAPORT0YCH14 = _ACMP_INPUTSEL_POSSEL_APORT0YCH14, acmpInputAPORT0YCH15 = _ACMP_INPUTSEL_POSSEL_APORT0YCH15, acmpInputAPORT1XCH0 = _ACMP_INPUTSEL_POSSEL_APORT1XCH0, acmpInputAPORT1YCH1 = _ACMP_INPUTSEL_POSSEL_APORT1YCH1, acmpInputAPORT1XCH2 = _ACMP_INPUTSEL_POSSEL_APORT1XCH2, acmpInputAPORT1YCH3 = _ACMP_INPUTSEL_POSSEL_APORT1YCH3, acmpInputAPORT1XCH4 = _ACMP_INPUTSEL_POSSEL_APORT1XCH4, acmpInputAPORT1YCH5 = _ACMP_INPUTSEL_POSSEL_APORT1YCH5, acmpInputAPORT1XCH6 = _ACMP_INPUTSEL_POSSEL_APORT1XCH6, acmpInputAPORT1YCH7 = _ACMP_INPUTSEL_POSSEL_APORT1YCH7, acmpInputAPORT1XCH8 = _ACMP_INPUTSEL_POSSEL_APORT1XCH8, acmpInputAPORT1YCH9 = _ACMP_INPUTSEL_POSSEL_APORT1YCH9, acmpInputAPORT1XCH10 = _ACMP_INPUTSEL_POSSEL_APORT1XCH10, acmpInputAPORT1YCH11 = _ACMP_INPUTSEL_POSSEL_APORT1YCH11, acmpInputAPORT1XCH12 = _ACMP_INPUTSEL_POSSEL_APORT1XCH12, acmpInputAPORT1YCH13 = _ACMP_INPUTSEL_POSSEL_APORT1YCH13, acmpInputAPORT1XCH14 = _ACMP_INPUTSEL_POSSEL_APORT1XCH14, acmpInputAPORT1YCH15 = _ACMP_INPUTSEL_POSSEL_APORT1YCH15, acmpInputAPORT1XCH16 = _ACMP_INPUTSEL_POSSEL_APORT1XCH16, acmpInputAPORT1YCH17 = _ACMP_INPUTSEL_POSSEL_APORT1YCH17, acmpInputAPORT1XCH18 = _ACMP_INPUTSEL_POSSEL_APORT1XCH18, acmpInputAPORT1YCH19 = _ACMP_INPUTSEL_POSSEL_APORT1YCH19, acmpInputAPORT1XCH20 = _ACMP_INPUTSEL_POSSEL_APORT1XCH20, acmpInputAPORT1YCH21 = _ACMP_INPUTSEL_POSSEL_APORT1YCH21, acmpInputAPORT1XCH22 = _ACMP_INPUTSEL_POSSEL_APORT1XCH22, acmpInputAPORT1YCH23 = _ACMP_INPUTSEL_POSSEL_APORT1YCH23, acmpInputAPORT1XCH24 = _ACMP_INPUTSEL_POSSEL_APORT1XCH24, acmpInputAPORT1YCH25 = _ACMP_INPUTSEL_POSSEL_APORT1YCH25, acmpInputAPORT1XCH26 = _ACMP_INPUTSEL_POSSEL_APORT1XCH26, acmpInputAPORT1YCH27 = _ACMP_INPUTSEL_POSSEL_APORT1YCH27, acmpInputAPORT1XCH28 = _ACMP_INPUTSEL_POSSEL_APORT1XCH28, acmpInputAPORT1YCH29 = _ACMP_INPUTSEL_POSSEL_APORT1YCH29, acmpInputAPORT1XCH30 = _ACMP_INPUTSEL_POSSEL_APORT1XCH30, acmpInputAPORT1YCH31 = _ACMP_INPUTSEL_POSSEL_APORT1YCH31, acmpInputAPORT2YCH0 = _ACMP_INPUTSEL_POSSEL_APORT2YCH0, acmpInputAPORT2XCH1 = _ACMP_INPUTSEL_POSSEL_APORT2XCH1, acmpInputAPORT2YCH2 = _ACMP_INPUTSEL_POSSEL_APORT2YCH2, acmpInputAPORT2XCH3 = _ACMP_INPUTSEL_POSSEL_APORT2XCH3, acmpInputAPORT2YCH4 = _ACMP_INPUTSEL_POSSEL_APORT2YCH4, acmpInputAPORT2XCH5 = _ACMP_INPUTSEL_POSSEL_APORT2XCH5, acmpInputAPORT2YCH6 = _ACMP_INPUTSEL_POSSEL_APORT2YCH6, acmpInputAPORT2XCH7 = _ACMP_INPUTSEL_POSSEL_APORT2XCH7, acmpInputAPORT2YCH8 = _ACMP_INPUTSEL_POSSEL_APORT2YCH8, acmpInputAPORT2XCH9 = _ACMP_INPUTSEL_POSSEL_APORT2XCH9, acmpInputAPORT2YCH10 = _ACMP_INPUTSEL_POSSEL_APORT2YCH10, acmpInputAPORT2XCH11 = _ACMP_INPUTSEL_POSSEL_APORT2XCH11, acmpInputAPORT2YCH12 = _ACMP_INPUTSEL_POSSEL_APORT2YCH12, acmpInputAPORT2XCH13 = _ACMP_INPUTSEL_POSSEL_APORT2XCH13, acmpInputAPORT2YCH14 = _ACMP_INPUTSEL_POSSEL_APORT2YCH14, acmpInputAPORT2XCH15 = _ACMP_INPUTSEL_POSSEL_APORT2XCH15, acmpInputAPORT2YCH16 = _ACMP_INPUTSEL_POSSEL_APORT2YCH16, acmpInputAPORT2XCH17 = _ACMP_INPUTSEL_POSSEL_APORT2XCH17, acmpInputAPORT2YCH18 = _ACMP_INPUTSEL_POSSEL_APORT2YCH18, acmpInputAPORT2XCH19 = _ACMP_INPUTSEL_POSSEL_APORT2XCH19, acmpInputAPORT2YCH20 = _ACMP_INPUTSEL_POSSEL_APORT2YCH20, acmpInputAPORT2XCH21 = _ACMP_INPUTSEL_POSSEL_APORT2XCH21, acmpInputAPORT2YCH22 = _ACMP_INPUTSEL_POSSEL_APORT2YCH22, acmpInputAPORT2XCH23 = _ACMP_INPUTSEL_POSSEL_APORT2XCH23, acmpInputAPORT2YCH24 = _ACMP_INPUTSEL_POSSEL_APORT2YCH24, acmpInputAPORT2XCH25 = _ACMP_INPUTSEL_POSSEL_APORT2XCH25, acmpInputAPORT2YCH26 = _ACMP_INPUTSEL_POSSEL_APORT2YCH26, acmpInputAPORT2XCH27 = _ACMP_INPUTSEL_POSSEL_APORT2XCH27, acmpInputAPORT2YCH28 = _ACMP_INPUTSEL_POSSEL_APORT2YCH28, acmpInputAPORT2XCH29 = _ACMP_INPUTSEL_POSSEL_APORT2XCH29, acmpInputAPORT2YCH30 = _ACMP_INPUTSEL_POSSEL_APORT2YCH30, acmpInputAPORT2XCH31 = _ACMP_INPUTSEL_POSSEL_APORT2XCH31, acmpInputAPORT3XCH0 = _ACMP_INPUTSEL_POSSEL_APORT3XCH0, acmpInputAPORT3YCH1 = _ACMP_INPUTSEL_POSSEL_APORT3YCH1, acmpInputAPORT3XCH2 = _ACMP_INPUTSEL_POSSEL_APORT3XCH2, acmpInputAPORT3YCH3 = _ACMP_INPUTSEL_POSSEL_APORT3YCH3, acmpInputAPORT3XCH4 = _ACMP_INPUTSEL_POSSEL_APORT3XCH4, acmpInputAPORT3YCH5 = _ACMP_INPUTSEL_POSSEL_APORT3YCH5, acmpInputAPORT3XCH6 = _ACMP_INPUTSEL_POSSEL_APORT3XCH6, acmpInputAPORT3YCH7 = _ACMP_INPUTSEL_POSSEL_APORT3YCH7, acmpInputAPORT3XCH8 = _ACMP_INPUTSEL_POSSEL_APORT3XCH8, acmpInputAPORT3YCH9 = _ACMP_INPUTSEL_POSSEL_APORT3YCH9, acmpInputAPORT3XCH10 = _ACMP_INPUTSEL_POSSEL_APORT3XCH10, acmpInputAPORT3YCH11 = _ACMP_INPUTSEL_POSSEL_APORT3YCH11, acmpInputAPORT3XCH12 = _ACMP_INPUTSEL_POSSEL_APORT3XCH12, acmpInputAPORT3YCH13 = _ACMP_INPUTSEL_POSSEL_APORT3YCH13, acmpInputAPORT3XCH14 = _ACMP_INPUTSEL_POSSEL_APORT3XCH14, acmpInputAPORT3YCH15 = _ACMP_INPUTSEL_POSSEL_APORT3YCH15, acmpInputAPORT3XCH16 = _ACMP_INPUTSEL_POSSEL_APORT3XCH16, acmpInputAPORT3YCH17 = _ACMP_INPUTSEL_POSSEL_APORT3YCH17, acmpInputAPORT3XCH18 = _ACMP_INPUTSEL_POSSEL_APORT3XCH18, acmpInputAPORT3YCH19 = _ACMP_INPUTSEL_POSSEL_APORT3YCH19, acmpInputAPORT3XCH20 = _ACMP_INPUTSEL_POSSEL_APORT3XCH20, acmpInputAPORT3YCH21 = _ACMP_INPUTSEL_POSSEL_APORT3YCH21, acmpInputAPORT3XCH22 = _ACMP_INPUTSEL_POSSEL_APORT3XCH22, acmpInputAPORT3YCH23 = _ACMP_INPUTSEL_POSSEL_APORT3YCH23, acmpInputAPORT3XCH24 = _ACMP_INPUTSEL_POSSEL_APORT3XCH24, acmpInputAPORT3YCH25 = _ACMP_INPUTSEL_POSSEL_APORT3YCH25, acmpInputAPORT3XCH26 = _ACMP_INPUTSEL_POSSEL_APORT3XCH26, acmpInputAPORT3YCH27 = _ACMP_INPUTSEL_POSSEL_APORT3YCH27, acmpInputAPORT3XCH28 = _ACMP_INPUTSEL_POSSEL_APORT3XCH28, acmpInputAPORT3YCH29 = _ACMP_INPUTSEL_POSSEL_APORT3YCH29, acmpInputAPORT3XCH30 = _ACMP_INPUTSEL_POSSEL_APORT3XCH30, acmpInputAPORT3YCH31 = _ACMP_INPUTSEL_POSSEL_APORT3YCH31, acmpInputAPORT4YCH0 = _ACMP_INPUTSEL_POSSEL_APORT4YCH0, acmpInputAPORT4XCH1 = _ACMP_INPUTSEL_POSSEL_APORT4XCH1, acmpInputAPORT4YCH2 = _ACMP_INPUTSEL_POSSEL_APORT4YCH2, acmpInputAPORT4XCH3 = _ACMP_INPUTSEL_POSSEL_APORT4XCH3, acmpInputAPORT4YCH4 = _ACMP_INPUTSEL_POSSEL_APORT4YCH4, acmpInputAPORT4XCH5 = _ACMP_INPUTSEL_POSSEL_APORT4XCH5, acmpInputAPORT4YCH6 = _ACMP_INPUTSEL_POSSEL_APORT4YCH6, acmpInputAPORT4XCH7 = _ACMP_INPUTSEL_POSSEL_APORT4XCH7, acmpInputAPORT4YCH8 = _ACMP_INPUTSEL_POSSEL_APORT4YCH8, acmpInputAPORT4XCH9 = _ACMP_INPUTSEL_POSSEL_APORT4XCH9, acmpInputAPORT4YCH10 = _ACMP_INPUTSEL_POSSEL_APORT4YCH10, acmpInputAPORT4XCH11 = _ACMP_INPUTSEL_POSSEL_APORT4XCH11, acmpInputAPORT4YCH12 = _ACMP_INPUTSEL_POSSEL_APORT4YCH12, acmpInputAPORT4XCH13 = _ACMP_INPUTSEL_POSSEL_APORT4XCH13, acmpInputAPORT4YCH16 = _ACMP_INPUTSEL_POSSEL_APORT4YCH16, acmpInputAPORT4XCH17 = _ACMP_INPUTSEL_POSSEL_APORT4XCH17, acmpInputAPORT4YCH18 = _ACMP_INPUTSEL_POSSEL_APORT4YCH18, acmpInputAPORT4XCH19 = _ACMP_INPUTSEL_POSSEL_APORT4XCH19, acmpInputAPORT4YCH20 = _ACMP_INPUTSEL_POSSEL_APORT4YCH20, acmpInputAPORT4XCH21 = _ACMP_INPUTSEL_POSSEL_APORT4XCH21, acmpInputAPORT4YCH22 = _ACMP_INPUTSEL_POSSEL_APORT4YCH22, acmpInputAPORT4XCH23 = _ACMP_INPUTSEL_POSSEL_APORT4XCH23, acmpInputAPORT4YCH24 = _ACMP_INPUTSEL_POSSEL_APORT4YCH24, acmpInputAPORT4XCH25 = _ACMP_INPUTSEL_POSSEL_APORT4XCH25, acmpInputAPORT4YCH26 = _ACMP_INPUTSEL_POSSEL_APORT4YCH26, acmpInputAPORT4XCH27 = _ACMP_INPUTSEL_POSSEL_APORT4XCH27, acmpInputAPORT4YCH28 = _ACMP_INPUTSEL_POSSEL_APORT4YCH28, acmpInputAPORT4XCH29 = _ACMP_INPUTSEL_POSSEL_APORT4XCH29, acmpInputAPORT4YCH30 = _ACMP_INPUTSEL_POSSEL_APORT4YCH30, acmpInputAPORT4YCH14 = _ACMP_INPUTSEL_POSSEL_APORT4YCH14, acmpInputAPORT4XCH15 = _ACMP_INPUTSEL_POSSEL_APORT4XCH15, acmpInputAPORT4XCH31 = _ACMP_INPUTSEL_POSSEL_APORT4XCH31, acmpInputVLP = _ACMP_INPUTSEL_POSSEL_VLP, acmpInputVBDIV = _ACMP_INPUTSEL_POSSEL_VBDIV, acmpInputVADIV = _ACMP_INPUTSEL_POSSEL_VADIV, acmpInputVDD = _ACMP_INPUTSEL_POSSEL_VDD, acmpInputVSS = _ACMP_INPUTSEL_POSSEL_VSS } |
enum |
ACMP_HysteresisLevel_TypeDef
{
acmpHysteresisLevel0 = _ACMP_HYSTERESIS0_HYST_HYST0, acmpHysteresisLevel1 = _ACMP_HYSTERESIS0_HYST_HYST1, acmpHysteresisLevel2 = _ACMP_HYSTERESIS0_HYST_HYST2, acmpHysteresisLevel3 = _ACMP_HYSTERESIS0_HYST_HYST3, acmpHysteresisLevel4 = _ACMP_HYSTERESIS0_HYST_HYST4, acmpHysteresisLevel5 = _ACMP_HYSTERESIS0_HYST_HYST5, acmpHysteresisLevel6 = _ACMP_HYSTERESIS0_HYST_HYST6, acmpHysteresisLevel7 = _ACMP_HYSTERESIS0_HYST_HYST7, acmpHysteresisLevel8 = _ACMP_HYSTERESIS0_HYST_HYST8, acmpHysteresisLevel9 = _ACMP_HYSTERESIS0_HYST_HYST9, acmpHysteresisLevel10 = _ACMP_HYSTERESIS0_HYST_HYST10, acmpHysteresisLevel11 = _ACMP_HYSTERESIS0_HYST_HYST11, acmpHysteresisLevel12 = _ACMP_HYSTERESIS0_HYST_HYST12, acmpHysteresisLevel13 = _ACMP_HYSTERESIS0_HYST_HYST13, acmpHysteresisLevel14 = _ACMP_HYSTERESIS0_HYST_HYST14, acmpHysteresisLevel15 = _ACMP_HYSTERESIS0_HYST_HYST15 } |
enum |
ACMP_InputRange_TypeDef
{
acmpInputRangeFull = _ACMP_CTRL_INPUTRANGE_FULL, acmpInputRangeHigh = _ACMP_CTRL_INPUTRANGE_GTVDDDIV2, acmpInputRangeLow = _ACMP_CTRL_INPUTRANGE_LTVDDDIV2 } |
enum |
ACMP_PowerSource_TypeDef
{
acmpPowerSourceAvdd = _ACMP_CTRL_PWRSEL_AVDD, acmpPowerSourceDvdd = _ACMP_CTRL_PWRSEL_DVDD, acmpPowerSourceIOVdd0 = _ACMP_CTRL_PWRSEL_IOVDD0, acmpPowerSourceIOVdd1 = _ACMP_CTRL_PWRSEL_IOVDD1 } |
enum |
ACMP_VAInput_TypeDef
{
acmpVAInputVDD = _ACMP_INPUTSEL_VASEL_VDD, acmpVAInputAPORT2YCH0 = _ACMP_INPUTSEL_VASEL_APORT2YCH0, acmpVAInputAPORT2YCH2 = _ACMP_INPUTSEL_VASEL_APORT2YCH2, acmpVAInputAPORT2YCH4 = _ACMP_INPUTSEL_VASEL_APORT2YCH4, acmpVAInputAPORT2YCH6 = _ACMP_INPUTSEL_VASEL_APORT2YCH6, acmpVAInputAPORT2YCH8 = _ACMP_INPUTSEL_VASEL_APORT2YCH8, acmpVAInputAPORT2YCH10 = _ACMP_INPUTSEL_VASEL_APORT2YCH10, acmpVAInputAPORT2YCH12 = _ACMP_INPUTSEL_VASEL_APORT2YCH12, acmpVAInputAPORT2YCH14 = _ACMP_INPUTSEL_VASEL_APORT2YCH14, acmpVAInputAPORT2YCH16 = _ACMP_INPUTSEL_VASEL_APORT2YCH16, acmpVAInputAPORT2YCH18 = _ACMP_INPUTSEL_VASEL_APORT2YCH18, acmpVAInputAPORT2YCH20 = _ACMP_INPUTSEL_VASEL_APORT2YCH20, acmpVAInputAPORT2YCH22 = _ACMP_INPUTSEL_VASEL_APORT2YCH22, acmpVAInputAPORT2YCH24 = _ACMP_INPUTSEL_VASEL_APORT2YCH24, acmpVAInputAPORT2YCH26 = _ACMP_INPUTSEL_VASEL_APORT2YCH26, acmpVAInputAPORT2YCH28 = _ACMP_INPUTSEL_VASEL_APORT2YCH28, acmpVAInputAPORT2YCH30 = _ACMP_INPUTSEL_VASEL_APORT2YCH30, acmpVAInputAPORT1XCH0 = _ACMP_INPUTSEL_VASEL_APORT1XCH0, acmpVAInputAPORT1YCH1 = _ACMP_INPUTSEL_VASEL_APORT1YCH1, acmpVAInputAPORT1XCH2 = _ACMP_INPUTSEL_VASEL_APORT1XCH2, acmpVAInputAPORT1YCH3 = _ACMP_INPUTSEL_VASEL_APORT1YCH3, acmpVAInputAPORT1XCH4 = _ACMP_INPUTSEL_VASEL_APORT1XCH4, acmpVAInputAPORT1YCH5 = _ACMP_INPUTSEL_VASEL_APORT1YCH5, acmpVAInputAPORT1XCH6 = _ACMP_INPUTSEL_VASEL_APORT1XCH6, acmpVAInputAPORT1YCH7 = _ACMP_INPUTSEL_VASEL_APORT1YCH7, acmpVAInputAPORT1XCH8 = _ACMP_INPUTSEL_VASEL_APORT1XCH8, acmpVAInputAPORT1YCH9 = _ACMP_INPUTSEL_VASEL_APORT1YCH9, acmpVAInputAPORT1XCH10 = _ACMP_INPUTSEL_VASEL_APORT1XCH10, acmpVAInputAPORT1YCH11 = _ACMP_INPUTSEL_VASEL_APORT1YCH11, acmpVAInputAPORT1XCH12 = _ACMP_INPUTSEL_VASEL_APORT1XCH12, acmpVAInputAPORT1YCH13 = _ACMP_INPUTSEL_VASEL_APORT1YCH13, acmpVAInputAPORT1XCH14 = _ACMP_INPUTSEL_VASEL_APORT1XCH14, acmpVAInputAPORT1YCH15 = _ACMP_INPUTSEL_VASEL_APORT1YCH15, acmpVAInputAPORT1XCH16 = _ACMP_INPUTSEL_VASEL_APORT1XCH16, acmpVAInputAPORT1YCH17 = _ACMP_INPUTSEL_VASEL_APORT1YCH17, acmpVAInputAPORT1XCH18 = _ACMP_INPUTSEL_VASEL_APORT1XCH18, acmpVAInputAPORT1YCH19 = _ACMP_INPUTSEL_VASEL_APORT1YCH19, acmpVAInputAPORT1XCH20 = _ACMP_INPUTSEL_VASEL_APORT1XCH20, acmpVAInputAPORT1YCH21 = _ACMP_INPUTSEL_VASEL_APORT1YCH21, acmpVAInputAPORT1XCH22 = _ACMP_INPUTSEL_VASEL_APORT1XCH22, acmpVAInputAPORT1YCH23 = _ACMP_INPUTSEL_VASEL_APORT1YCH23, acmpVAInputAPORT1XCH24 = _ACMP_INPUTSEL_VASEL_APORT1XCH24, acmpVAInputAPORT1YCH25 = _ACMP_INPUTSEL_VASEL_APORT1YCH25, acmpVAInputAPORT1XCH26 = _ACMP_INPUTSEL_VASEL_APORT1XCH26, acmpVAInputAPORT1YCH27 = _ACMP_INPUTSEL_VASEL_APORT1YCH27, acmpVAInputAPORT1XCH28 = _ACMP_INPUTSEL_VASEL_APORT1XCH28, acmpVAInputAPORT1YCH29 = _ACMP_INPUTSEL_VASEL_APORT1YCH29, acmpVAInputAPORT1XCH30 = _ACMP_INPUTSEL_VASEL_APORT1XCH30, acmpVAInputAPORT1YCH31 = _ACMP_INPUTSEL_VASEL_APORT1YCH31 } |
enum |
ACMP_VBInput_TypeDef
{
acmpVBInput1V25 = _ACMP_INPUTSEL_VBSEL_1V25, acmpVBInput2V5 = _ACMP_INPUTSEL_VBSEL_2V5 } |
enum |
ACMP_VLPInput_Typedef
{
acmpVLPInputVADIV = _ACMP_INPUTSEL_VLPSEL_VADIV, acmpVLPInputVBDIV = _ACMP_INPUTSEL_VLPSEL_VBDIV } |
Functions |
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void | ACMP_CapsenseChannelSet ( ACMP_TypeDef *acmp, ACMP_Channel_TypeDef channel) |
Sets the ACMP channel used for capacative sensing.
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void | ACMP_CapsenseInit ( ACMP_TypeDef *acmp, const ACMP_CapsenseInit_TypeDef *init) |
Sets up the ACMP for use in capacative sense applications.
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void | ACMP_ChannelSet ( ACMP_TypeDef *acmp, ACMP_Channel_TypeDef negSel, ACMP_Channel_TypeDef posSel) |
Sets which channels should be used in ACMP comparisons.
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void | ACMP_Disable ( ACMP_TypeDef *acmp) |
Disables the ACMP.
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void | ACMP_Enable ( ACMP_TypeDef *acmp) |
Enables the ACMP.
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void | ACMP_GPIOSetup ( ACMP_TypeDef *acmp, uint32_t location, bool enable, bool invert) |
Sets up GPIO output from the ACMP.
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void | ACMP_Init ( ACMP_TypeDef *acmp, const ACMP_Init_TypeDef *init) |
Initialize ACMP.
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__STATIC_INLINE void | ACMP_IntClear ( ACMP_TypeDef *acmp, uint32_t flags) |
Clear one or more pending ACMP interrupts.
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__STATIC_INLINE void | ACMP_IntDisable ( ACMP_TypeDef *acmp, uint32_t flags) |
Disable one or more ACMP interrupts.
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__STATIC_INLINE void | ACMP_IntEnable ( ACMP_TypeDef *acmp, uint32_t flags) |
Enable one or more ACMP interrupts.
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__STATIC_INLINE uint32_t | ACMP_IntGet ( ACMP_TypeDef *acmp) |
Get pending ACMP interrupt flags.
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__STATIC_INLINE uint32_t | ACMP_IntGetEnabled ( ACMP_TypeDef *acmp) |
Get enabled and pending ACMP interrupt flags. Useful for handling more interrupt sources in the same interrupt handler.
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__STATIC_INLINE void | ACMP_IntSet ( ACMP_TypeDef *acmp, uint32_t flags) |
Set one or more pending ACMP interrupts from SW.
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void | ACMP_Reset ( ACMP_TypeDef *acmp) |
Reset ACMP to same state as after a HW reset.
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void | ACMP_VASetup ( ACMP_TypeDef *acmp, const ACMP_VAConfig_TypeDef *vaconfig) |
Setup the VA Source.
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void | ACMP_VBSetup ( ACMP_TypeDef *acmp, const ACMP_VBConfig_TypeDef *vbconfig) |
Setup the VB Source.
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Macro Definition Documentation
#define ACMP_CAPSENSE_INIT_DEFAULT |
Default config for capacitive sense mode initialization.
Definition at line
597
of file
em_acmp.h
.
Referenced by CAPSENSE_Init() .
#define ACMP_INIT_DEFAULT |
Default config for ACMP regular initialization.
Definition at line
719
of file
em_acmp.h
.
#define ACMP_VACONFIG_DEFAULT |
Definition at line
790
of file
em_acmp.h
.
#define ACMP_VBCONFIG_DEFAULT |
Definition at line
823
of file
em_acmp.h
.
Enumeration Type Documentation
Resistor values used for the internal capacative sense resistor. See the datasheet for your device for details on each resistor value.
Definition at line
98
of file
em_acmp.h
.
enum ACMP_Channel_TypeDef |
ACMP Input Selection
Definition at line
279
of file
em_acmp.h
.
Hysteresis level. See datasheet for your device for details on each level.
Definition at line
113
of file
em_acmp.h
.
ACMP Power source.
Definition at line
182
of file
em_acmp.h
.
enum ACMP_VAInput_TypeDef |
ACMP Input to the VA divider. This enum is used to select the input for the VA Divider
Definition at line
203
of file
em_acmp.h
.
enum ACMP_VBInput_TypeDef |
ACMP Input to the VB divider. This enum is used to select the input for the VB divider.
Definition at line
261
of file
em_acmp.h
.
ACMP Low-Power Input Selection.
Definition at line
271
of file
em_acmp.h
.
Function Documentation
void ACMP_CapsenseChannelSet | ( | ACMP_TypeDef * |
acmp,
|
ACMP_Channel_TypeDef |
channel
|
||
) |
Sets the ACMP channel used for capacative sensing.
- Note
- A basic example of capacative sensing can be found in the STK BSP (capsense demo).
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block. [in] channel
The ACMP channel to use for capacative sensing (Possel).
Definition at line
190
of file
em_acmp.c
.
References _ACMP_INPUTSEL_POSSEL_MASK , _ACMP_INPUTSEL_POSSEL_SHIFT , BUS_RegMaskedWrite() , and ACMP_TypeDef::INPUTSEL .
Referenced by CAPSENSE_Measure() .
void ACMP_CapsenseInit | ( | ACMP_TypeDef * |
acmp,
|
const ACMP_CapsenseInit_TypeDef * |
init
|
||
) |
Sets up the ACMP for use in capacative sense applications.
This function sets up the ACMP for use in capacacitve sense applications. To use the capacative sense functionality in the ACMP you need to use the PRS output of the ACMP module to count the number of oscillations in the capacative sense circuit (possibly using a TIMER).
- Note
- A basic example of capacative sensing can be found in the STK BSP (capsense demo).
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block. [in] init
Pointer to initialization structure used to configure ACMP for capacative sensing operation.
Definition at line
114
of file
em_acmp.c
.
References _ACMP_CTRL_ACCURACY_MASK , _ACMP_CTRL_BIASPROG_MASK , _ACMP_CTRL_BIASPROG_SHIFT , _ACMP_CTRL_EN_SHIFT , _ACMP_CTRL_FULLBIAS_SHIFT , _ACMP_HYSTERESIS0_DIVVA_SHIFT , _ACMP_HYSTERESIS0_HYST_SHIFT , _ACMP_HYSTERESIS1_DIVVA_SHIFT , _ACMP_HYSTERESIS1_HYST_SHIFT , _ACMP_INPUTSEL_CSRESSEL_SHIFT , ACMP_CTRL_ACCURACY_HIGH , ACMP_INPUTSEL_CSRESEN , ACMP_INPUTSEL_NEGSEL_VADIV , ACMP_INPUTSEL_VASEL_VDD , ACMP_CapsenseInit_TypeDef::biasProg , BUS_RegBitWrite() , ACMP_TypeDef::CTRL , ACMP_CapsenseInit_TypeDef::enable , ACMP_CapsenseInit_TypeDef::fullBias , ACMP_TypeDef::HYSTERESIS0 , ACMP_TypeDef::HYSTERESIS1 , ACMP_CapsenseInit_TypeDef::hysteresisLevel_0 , ACMP_CapsenseInit_TypeDef::hysteresisLevel_1 , ACMP_TypeDef::INPUTSEL , ACMP_CapsenseInit_TypeDef::resistor , ACMP_CapsenseInit_TypeDef::vddLevelHigh , and ACMP_CapsenseInit_TypeDef::vddLevelLow .
Referenced by CAPLESENSE_setupACMP() , and CAPSENSE_Init() .
void ACMP_ChannelSet | ( | ACMP_TypeDef * |
acmp,
|
ACMP_Channel_TypeDef |
negSel,
|
||
ACMP_Channel_TypeDef |
posSel
|
||
) |
Sets which channels should be used in ACMP comparisons.
- Parameters
-
[in] acmp
Pointer to the ACMP peripheral register block. negSel
Channel to use on the negative input to the ACMP. posSel
Channel to use on the positive input to the ACMP.
Definition at line
345
of file
em_acmp.c
.
References _ACMP_INPUTSEL_NEGSEL_MASK , _ACMP_INPUTSEL_NEGSEL_SHIFT , _ACMP_INPUTSEL_POSSEL_MASK , _ACMP_INPUTSEL_POSSEL_SHIFT , and ACMP_TypeDef::INPUTSEL .
void ACMP_Disable | ( | ACMP_TypeDef * |
acmp
|
) |
Disables the ACMP.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block.
Definition at line
215
of file
em_acmp.c
.
References ACMP_CTRL_EN , and ACMP_TypeDef::CTRL .
Referenced by CAPSENSE_Sense() .
void ACMP_Enable | ( | ACMP_TypeDef * |
acmp
|
) |
Enables the ACMP.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block.
Definition at line
230
of file
em_acmp.c
.
References ACMP_CTRL_EN , and ACMP_TypeDef::CTRL .
Referenced by CAPSENSE_Sense() .
void ACMP_GPIOSetup | ( | ACMP_TypeDef * |
acmp,
|
uint32_t |
location,
|
||
bool |
enable,
|
||
bool |
invert
|
||
) |
Sets up GPIO output from the ACMP.
- Note
-
GPIO must be enabled in the CMU before this function call, i.e.
CMU_ClockEnable(cmuClock_GPIO, true);
- Parameters
-
[in] acmp
Pointer to the ACMP peripheral register block. location
The pin location to use. See the datasheet for location to pin mappings. enable
Enable or disable pin output. invert
Invert output.
Definition at line
310
of file
em_acmp.c
.
References _ACMP_CTRL_GPIOINV_MASK , _ACMP_CTRL_GPIOINV_SHIFT , _ACMP_ROUTELOC0_OUTLOC_SHIFT , ACMP_ROUTEPEN_OUTPEN , BUS_RegMaskedWrite() , ACMP_TypeDef::CTRL , ACMP_TypeDef::ROUTELOC0 , and ACMP_TypeDef::ROUTEPEN .
Referenced by CAPLESENSE_setupACMP() .
void ACMP_Init | ( | ACMP_TypeDef * |
acmp,
|
const ACMP_Init_TypeDef * |
init
|
||
) |
Initialize ACMP.
- Parameters
-
[in] acmp
Pointer to the ACMP peripheral register block. [in] init
Pointer to initialization structure used to configure ACMP for capacative sensing operation.
Definition at line
379
of file
em_acmp.c
.
References _ACMP_CTRL_ACCURACY_MASK , _ACMP_CTRL_ACCURACY_SHIFT , _ACMP_CTRL_BIASPROG_MASK , _ACMP_CTRL_BIASPROG_SHIFT , _ACMP_CTRL_EN_SHIFT , _ACMP_CTRL_FULLBIAS_SHIFT , _ACMP_CTRL_IFALL_SHIFT , _ACMP_CTRL_INACTVAL_SHIFT , _ACMP_CTRL_INPUTRANGE_SHIFT , _ACMP_CTRL_IRISE_SHIFT , _ACMP_CTRL_PWRSEL_MASK , _ACMP_CTRL_PWRSEL_SHIFT , _ACMP_INPUTSEL_VLPSEL_MASK , _ACMP_INPUTSEL_VLPSEL_SHIFT , ACMP_Init_TypeDef::accuracy , ACMP_Init_TypeDef::biasProg , BUS_RegBitWrite() , ACMP_TypeDef::CTRL , ACMP_Init_TypeDef::enable , ACMP_Init_TypeDef::fullBias , ACMP_Init_TypeDef::inactiveValue , ACMP_Init_TypeDef::inputRange , ACMP_TypeDef::INPUTSEL , ACMP_Init_TypeDef::interruptOnFallingEdge , ACMP_Init_TypeDef::interruptOnRisingEdge , ACMP_Init_TypeDef::powerSource , and ACMP_Init_TypeDef::vlpInput .
__STATIC_INLINE void ACMP_IntClear | ( | ACMP_TypeDef * |
acmp,
|
uint32_t |
flags
|
||
) |
Clear one or more pending ACMP interrupts.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block. [in] flags
Pending ACMP interrupt source to clear. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be for instance ACMP_IFC_EDGE or ACMP_IFC_WARMUP .
Definition at line
865
of file
em_acmp.h
.
References ACMP_TypeDef::IFC .
__STATIC_INLINE void ACMP_IntDisable | ( | ACMP_TypeDef * |
acmp,
|
uint32_t |
flags
|
||
) |
Disable one or more ACMP interrupts.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block. [in] flags
ACMP interrupt sources to disable. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be for instance ACMP_IEN_EDGE or ACMP_IEN_WARMUP .
Definition at line
882
of file
em_acmp.h
.
References ACMP_TypeDef::IEN .
__STATIC_INLINE void ACMP_IntEnable | ( | ACMP_TypeDef * |
acmp,
|
uint32_t |
flags
|
||
) |
Enable one or more ACMP interrupts.
- Note
- Depending on the use, a pending interrupt may already be set prior to enabling the interrupt. Consider using ACMP_IntClear() prior to enabling if such a pending interrupt should be ignored.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block. [in] flags
ACMP interrupt sources to enable. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be for instance ACMP_IEN_EDGE or ACMP_IEN_WARMUP .
Definition at line
904
of file
em_acmp.h
.
References ACMP_TypeDef::IEN .
__STATIC_INLINE uint32_t ACMP_IntGet | ( | ACMP_TypeDef * |
acmp
|
) |
Get pending ACMP interrupt flags.
- Note
- The event bits are not cleared by the use of this function.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block.
- Returns
- ACMP interrupt sources pending. A bitwise logic OR combination of valid interrupt flags for the ACMP module. The pending interrupt sources can be for instance ACMP_IF_EDGE or ACMP_IF_WARMUP .
Definition at line
924
of file
em_acmp.h
.
References ACMP_TypeDef::IF .
__STATIC_INLINE uint32_t ACMP_IntGetEnabled | ( | ACMP_TypeDef * |
acmp
|
) |
Get enabled and pending ACMP interrupt flags. Useful for handling more interrupt sources in the same interrupt handler.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block.
- Note
- Interrupt flags are not cleared by the use of this function.
- Returns
-
Pending and enabled ACMP interrupt sources. The return value is the bitwise AND combination of
- the OR combination of enabled interrupt sources in ACMPx_IEN_nnn register (ACMPx_IEN_nnn) and
- the OR combination of valid interrupt flags of the ACMP module (ACMPx_IF_nnn).
Definition at line
948
of file
em_acmp.h
.
References ACMP_TypeDef::IEN , and ACMP_TypeDef::IF .
__STATIC_INLINE void ACMP_IntSet | ( | ACMP_TypeDef * |
acmp,
|
uint32_t |
flags
|
||
) |
Set one or more pending ACMP interrupts from SW.
- Parameters
-
[in] acmp
Pointer to ACMP peripheral register block. [in] flags
ACMP interrupt sources to set to pending. Use a bitwise logic OR combination of valid interrupt flags for the ACMP module. The flags can be for instance ACMP_IFS_EDGE or ACMP_IFS_WARMUP .
Definition at line
972
of file
em_acmp.h
.
References ACMP_TypeDef::IFS .
void ACMP_Reset | ( | ACMP_TypeDef * |
acmp
|
) |
Reset ACMP to same state as after a HW reset.
- Note
- The ROUTE register is NOT reset by this function, in order to allow for centralized setup of this feature.
- Parameters
-
[in] acmp
Pointer to the ACMP peripheral register block.
Definition at line
275
of file
em_acmp.c
.
References _ACMP_CTRL_RESETVALUE , _ACMP_HYSTERESIS0_RESETVALUE , _ACMP_HYSTERESIS1_RESETVALUE , _ACMP_IEN_RESETVALUE , _ACMP_IF_MASK , _ACMP_INPUTSEL_RESETVALUE , ACMP_TypeDef::CTRL , ACMP_TypeDef::HYSTERESIS0 , ACMP_TypeDef::HYSTERESIS1 , ACMP_TypeDef::IEN , ACMP_TypeDef::IFC , and ACMP_TypeDef::INPUTSEL .
void ACMP_VASetup | ( | ACMP_TypeDef * |
acmp,
|
const ACMP_VAConfig_TypeDef * |
vaconfig
|
||
) |
Setup the VA Source.
- Parameters
-
[in] acmp
Pointer to the ACMP peripheral register block. [in] vaconfig
Pointer to the structure used to configure the VA source. This structure contains the input source as well as the 2 divider values.
Definition at line
445
of file
em_acmp.c
.
References _ACMP_HYSTERESIS0_DIVVA_MASK , _ACMP_HYSTERESIS0_DIVVA_SHIFT , _ACMP_HYSTERESIS1_DIVVA_MASK , _ACMP_HYSTERESIS1_DIVVA_SHIFT , _ACMP_INPUTSEL_VASEL_MASK , _ACMP_INPUTSEL_VASEL_SHIFT , BUS_RegMaskedWrite() , ACMP_VAConfig_TypeDef::div0 , ACMP_VAConfig_TypeDef::div1 , ACMP_TypeDef::HYSTERESIS0 , ACMP_TypeDef::HYSTERESIS1 , ACMP_VAConfig_TypeDef::input , and ACMP_TypeDef::INPUTSEL .
void ACMP_VBSetup | ( | ACMP_TypeDef * |
acmp,
|
const ACMP_VBConfig_TypeDef * |
vbconfig
|
||
) |
Setup the VB Source.
- Parameters
-
[in] acmp
Pointer to the ACMP peripheral register block. [in] vbconfig
Pointer to the structure used to configure the VB source. This structure contains the input source as well as the 2 divider values.
Definition at line
471
of file
em_acmp.c
.
References _ACMP_HYSTERESIS0_DIVVB_MASK , _ACMP_HYSTERESIS0_DIVVB_SHIFT , _ACMP_HYSTERESIS1_DIVVB_MASK , _ACMP_HYSTERESIS1_DIVVB_SHIFT , _ACMP_INPUTSEL_VBSEL_MASK , _ACMP_INPUTSEL_VBSEL_SHIFT , BUS_RegMaskedWrite() , ACMP_VBConfig_TypeDef::div0 , ACMP_VBConfig_TypeDef::div1 , ACMP_TypeDef::HYSTERESIS0 , ACMP_TypeDef::HYSTERESIS1 , ACMP_VBConfig_TypeDef::input , and ACMP_TypeDef::INPUTSEL .