107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
/****************************************************************************
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* arch/arm/src/lc823450/lc823450_adc.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_LC823450_LC823450_ADC_H
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#define __ARCH_ARM_SRC_LC823450_LC823450_ADC_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Register Offsets *********************************************************/
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/* Register Addresses *******************************************************/
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#define ADC_REGBASE 0x40087000
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#define ADC0DT (ADC_REGBASE + 0x00)
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#define ADC1DT (ADC_REGBASE + 0x04)
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#define ADC2DT (ADC_REGBASE + 0x08)
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#define ADC3DT (ADC_REGBASE + 0x0C)
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#define ADC4DT (ADC_REGBASE + 0x10)
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#define ADC5DT (ADC_REGBASE + 0x14)
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#define ADCCTL (ADC_REGBASE + 0x28)
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#define ADCSTS (ADC_REGBASE + 0x2C)
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#define ADCSMPL (ADC_REGBASE + 0x30)
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#define ADCSTBY (ADC_REGBASE + 0x34)
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/* Register Bitfield Definitions ********************************************/
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/* ADC Control Register */
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#define ADCCTL_ADCNTNU (1 << 9) /* Bit 9: ADC continuous conversion enable */
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#define ADCCTL_ADACT (1 << 8) /* Bit 8: ADC activate enable */
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#define ADCCTL_ADCHSCN (1 << 7) /* Bit 7: ADC channel scan enable */
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#define ADCCTL_ADCNVCK_SHIFT (4)
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#define ADCCTL_ADCNVCK_DIV2 (0 << ADCCTL_ADCNVCK_SHIFT)
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#define ADCCTL_ADCNVCK_DIV4 (1 << ADCCTL_ADCNVCK_SHIFT)
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#define ADCCTL_ADCNVCK_DIV8 (2 << ADCCTL_ADCNVCK_SHIFT)
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#define ADCCTL_ADCNVCK_DIV16 (3 << ADCCTL_ADCNVCK_SHIFT)
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#define ADCCTL_ADCNVCK_DIV32 (4 << ADCCTL_ADCNVCK_SHIFT)
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#define ADCCTL_ADCNVCK_DIV64 (5 << ADCCTL_ADCNVCK_SHIFT)
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#define ADCCTL_ADCHST_SHIFT (0)
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/* ADC Status Register */
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#define ADCSTS_ADCMPL (1 << 0) /* Bit 0: ADC Conversion Completion Flag */
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/* ADC Standby Register */
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#define ADCSTBY_STBY (1 << 0) /* Bit 0: Standby enable */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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struct adc_dev_s *lc823450_adcinitialize(void);
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#if defined(__cplusplus)
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}
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#endif
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#undef EXTERN
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_LC823450_LC823450_ADC_H */
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