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Add support for the LPCXpresso's RTC, ADC, DAC, Timer, PWM, and MCPWM. All form Max
This commit is contained in:
Gregory Nutt
@@ -244,6 +244,15 @@ config LPC17_TMR0
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bool "Timer 0"
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default n
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config LPC17_MAT0_PIN
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int "TIM1 MAT0 Output Pin"
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default 1
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range 1 4
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depends on LPC17_TMR0
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---help---
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If TIM1 is enabled for PWM usage, you also need specifies the timer output
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channel {1,..,4}
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config LPC17_TMR1
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bool "Timer 1"
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default n
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@@ -267,13 +276,31 @@ config LPC17_PWM0
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config LPC17_PWM1
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bool "PWM1"
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default n
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depends on ARCH_FAMILY_LPC177X || ARCH_FAMILY_LPC178X
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depends on ARCH_FAMILY_LPC177X || ARCH_FAMILY_LPC178X || ARCH_FAMILY_LPC176X
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config LPC17_PWM1_PIN
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int "TIM1 PWM Output Pin"
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default 1
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range 1 4
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depends on LPC17_PWM1
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---help---
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If TIM1 is enabled for PWM usage, you also need specifies the timer output
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channel {1,..,4}
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config LPC17_MCPWM
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bool "MCPWM"
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default n
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depends on ARCH_FAMILY_LPC175X || ARCH_FAMILY_LPC176X
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config LPC17_MCPWM1_PIN
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int "TIM1 MCPWM Output Pin"
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default 1
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range 1 4
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depends on LPC17_MCPWM
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---help---
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If TIM1 is enabled for PWM usage, you also need specifies the timer output
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channel {1,..,4}
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config LPC17_QEI
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bool "QEI"
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default n
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@@ -1,7 +1,7 @@
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############################################################################
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# arch/arm/src/lpc17xx/Make.defs
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#
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# Copyright (C) 2010-2011, 2013 Gregory Nutt. All rights reserved.
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# Copyright (C) 2010-2011, 2013-2014 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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#
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# Redistribution and use in source and binary forms, with or without
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@@ -162,3 +162,19 @@ endif
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ifeq ($(CONFIG_LPC17_DAC),y)
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CHIP_CSRCS += lpc17_dac.c
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endif
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ifeq ($(CONFIG_LPC17_RTC),y)
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CHIP_CSRCS += lpc176x_rtc.c
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endif
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ifeq ($(CONFIG_LPC17_PWM1),y)
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CHIP_CSRCS += lpc17_pwm.c
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endif
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ifeq ($(CONFIG_LPC17_MCPWM),y)
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CHIP_CSRCS += lpc17_mcpwm.c
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endif
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ifeq ($(CONFIG_LPC17_TMR0),y)
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CHIP_CSRCS += lpc17_timer.c
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endif
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@@ -0,0 +1,452 @@
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/************************************************************************************
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* arch/arm/src/lpc17xx/lpc176x_rtcc.c
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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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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#include <nuttx/arch.h>
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#include <nuttx/irq.h>
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#include <nuttx/rtc.h>
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#include <time.h>
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#include <errno.h>
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#include <debug.h>
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#include <arch/board/board.h>
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#include "up_arch.h"
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#include "up_internal.h"
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#include "chip.h"
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#include "chip/lpc17_syscon.h"
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#include "lpc17_rtc.h"
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#ifdef CONFIG_RTC
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Configuration ********************************************************************/
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/* This RTC implementation supports only date/time RTC hardware */
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#ifndef CONFIG_RTC_DATETIME
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# error "CONFIG_RTC_DATETIME must be set to use this driver"
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#endif
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#ifdef CONFIG_RTC_HIRES
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# error "CONFIG_RTC_HIRES must NOT be set with this driver"
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#endif
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#ifndef CONFIG_DEBUG
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# undef CONFIG_DEBUG_RTC
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#endif
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/* Constants ************************************************************************/
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/* Debug ****************************************************************************/
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#ifdef CONFIG_DEBUG_RTC
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# define rtcdbg dbg
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# define rtcvdbg vdbg
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# define rtclldbg lldbg
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# define rtcllvdbg llvdbg
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#else
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# define rtcdbg(x...)
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# define rtcvdbg(x...)
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# define rtclldbg(x...)
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# define rtcllvdbg(x...)
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#endif
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/************************************************************************************
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* Private Types
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************************************************************************************/
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/************************************************************************************
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* Private Data
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************************************************************************************/
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/* Callback to use when the alarm expires */
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#ifdef CONFIG_RTC_ALARM
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static alarmcb_t g_alarmcb;
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#endif
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/************************************************************************************
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* Public Data
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************************************************************************************/
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/* g_rtc_enabled is set true after the RTC has successfully initialized */
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volatile bool g_rtc_enabled = false;
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/************************************************************************************
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* Private Functions
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************************************************************************************/
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/************************************************************************************
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* Name: rtc_dumpregs
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*
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* Description:
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* Disable RTC write protection
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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************************************************************************************/
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#ifdef CONFIG_DEBUG_RTC
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static void rtc_dumpregs(FAR const char *msg)
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{
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rtclldbg("%s:\n", msg);
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rtclldbg(" DOM : %08x\n", (getreg32(LPC17_RTC_DOM) & RTC_DOM_MASK));
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rtclldbg(" DOW : %08x\n", (getreg32(LPC17_RTC_DOW) & RTC_DOW_MASK));
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}
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#else
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# define rtc_dumpregs(msg)
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#endif
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/************************************************************************************
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* Name: rtc_dumptime
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*
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* Description:
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* Disable RTC write protection
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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************************************************************************************/
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#ifdef CONFIG_DEBUG_RTC
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static void rtc_dumptime(FAR struct tm *tp, FAR const char *msg)
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{
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rtclldbg("%s:\n", msg);
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rtclldbg(" tm_sec: %08x\n", tp->tm_sec);
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rtclldbg(" tm_min: %08x\n", tp->tm_min);
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rtclldbg(" tm_hour: %08x\n", tp->tm_hour);
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rtclldbg(" tm_mday: %08x\n", tp->tm_mday);
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rtclldbg(" tm_mon: %08x\n", tp->tm_mon);
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rtclldbg(" tm_year: %08x\n", tp->tm_year);
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}
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#else
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# define rtc_dumptime(tp, msg)
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#endif
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/************************************************************************************
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* Name: rtc_setup
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*
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* Description:
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* Performs first time configuration of the RTC. A special value written into
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* back-up register 0 will prevent this function from being called on sub-sequent
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* resets or power up.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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************************************************************************************/
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static int rtc_setup(void)
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{
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uint32_t regval;
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int ret;
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/* Clear all register to be default */
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putreg32((uint32_t)0x00, LPC17_RTC_ILR);
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putreg32((uint32_t)0x00, LPC17_RTC_CCR);
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putreg32((uint32_t)0x00, LPC17_RTC_CIIR);
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putreg32((uint32_t)0xff, LPC17_RTC_AMR);
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putreg32((uint32_t)0x00, LPC17_RTC_CALIB);
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/* Enable power to the RTC module */
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regval = getreg32(LPC17_SYSCON_PCONP);
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regval |= SYSCON_PCONP_PCRTC;
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putreg32(regval, LPC17_SYSCON_PCONP);
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/* Enable counters */
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putreg32((uint32_t)0x01, LPC17_RTC_CCR);
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return ret;
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}
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/************************************************************************************
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* Name: rtc_resume
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*
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* Description:
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* Called when the RTC was already initialized on a previous power cycle. This
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* just brings the RTC back into full operation.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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************************************************************************************/
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static int rtc_resume(void)
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{
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#ifdef CONFIG_RTC_ALARM
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uint32_t regval;
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#endif
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int ret;
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/* Clear the RTC alarm flags */
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#ifdef CONFIG_RTC_ALARM
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#endif
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return ret;
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}
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/************************************************************************************
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* Name: rtc_interrupt
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*
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* Description:
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* RTC interrupt service routine
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*
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* Input Parameters:
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* irq - The IRQ number that generated the interrupt
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* context - Architecture specific register save information.
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*
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* Returned Value:
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* Zero (OK) on success; A negated errno value on failure.
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*
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************************************************************************************/
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#if CONFIG_RTC_ALARM
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static int rtc_interrupt(int irq, void *context)
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{
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#warning "Missing logic"
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return OK;
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}
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#endif
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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/************************************************************************************
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* Name: up_rtcinitialize
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*
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* Description:
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* Initialize the hardware RTC per the selected configuration. This function is
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* called once during the OS initialization sequence
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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************************************************************************************/
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int up_rtcinitialize(void)
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{
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uint32_t regval;
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int ret;
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rtc_dumpregs("On reset");
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/* Attach the RTC interrupt handler */
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ret = irq_attach(LPC17_IRQ_RTC, rtc_interrupt);
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if (ret == OK)
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{
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up_enable_irq(LPC17_IRQ_RTC);
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}
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/* Perform the one-time setup of the RTC */
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ret = rtc_setup();
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/* Configure RTC interrupt to catch alarm interrupts. All RTC interrupts are
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* connected to the EXTI controller. To enable the RTC Alarm interrupt, the
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* following sequence is required:
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*
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* 1. Configure and enable the EXTI Line 17 in interrupt mode and select the
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* rising edge sensitivity.
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* 2. Configure and enable the RTC_Alarm IRQ channel in the NVIC.
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* 3. Configure the RTC to generate RTC alarms (Alarm A or Alarm B).
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*/
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g_rtc_enabled = true;
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rtc_dumpregs("After Initialization");
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return OK;
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}
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/************************************************************************************
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* Name: up_rtc_getdatetime
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*
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* Description:
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* Get the current date and time from the date/time RTC. This interface
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* is only supported by the date/time RTC hardware implementation.
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* It is used to replace the system timer. It is only used by the RTOS during
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* initialization to set up the system time when CONFIG_RTC and CONFIG_RTC_DATETIME
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* are selected (and CONFIG_RTC_HIRES is not).
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*
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* NOTE: Some date/time RTC hardware is capability of sub-second accuracy. That
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* sub-second accuracy is lost in this interface. However, since the system time
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* is reinitialized on each power-up/reset, there will be no timing inaccuracy in
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* the long run.
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*
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* Input Parameters:
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* tp - The location to return the high resolution time value.
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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************************************************************************************/
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int up_rtc_getdatetime(FAR struct tm *tp)
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{
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rtc_dumpregs("Reading Time");
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/* Convert the RTC time to fields in struct tm format. All of the STM32
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* All of the ranges of values correspond between struct tm and the time
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* register.
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*/
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tp->tm_sec = ((getreg32(LPC17_RTC_SEC) & RTC_SEC_MASK));
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tp->tm_min = ((getreg32(LPC17_RTC_MIN) & RTC_MIN_MASK));
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tp->tm_hour = ((getreg32(LPC17_RTC_HOUR) & RTC_HOUR_MASK));
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/* Now convert the RTC date to fields in struct tm format:
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* Days: 1-31 match in both cases.
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* Month: STM32 is 1-12, struct tm is 0-11.
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* Years: STM32 is 00-99, struct tm is years since 1900.
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*
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* Issue: I am not sure what the STM32 years mean. Are these the
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* years 2000-2099? I'll assume so.
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*/
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tp->tm_mday = ((getreg32(LPC17_RTC_DOM) & RTC_DOM_MASK));
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tp->tm_mon = ((getreg32(LPC17_RTC_MONTH) & RTC_MONTH_MASK)) - 1;
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tp->tm_year = ((getreg32(LPC17_RTC_YEAR) & RTC_YEAR_MASK)-1900);
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rtc_dumptime(tp, "Returning");
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return OK;
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}
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/************************************************************************************
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* Name: up_rtc_settime
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*
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* Description:
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* Set the RTC to the provided time. All RTC implementations must be able to
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* set their time based on a standard timespec.
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*
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* Input Parameters:
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* tp - the time to use
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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************************************************************************************/
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int up_rtc_settime(FAR const struct timespec *tp)
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{
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FAR struct tm newtime;
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int ret;
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/* Break out the time values (not that the time is set only to units of seconds) */
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(void)gmtime_r(&tp->tv_sec, &newtime);
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rtc_dumptime(&newtime, "Setting time");
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/* Then write the broken out values to the RTC */
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putreg32(((newtime.tm_sec) & RTC_SEC_MASK), LPC17_RTC_SEC);
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putreg32(((newtime.tm_min) & RTC_MIN_MASK), LPC17_RTC_MIN);
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putreg32(((newtime.tm_hour) & RTC_HOUR_MASK), LPC17_RTC_HOUR);
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putreg32(((newtime.tm_mday) & RTC_DOM_MASK), LPC17_RTC_DOM);
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putreg32((((newtime.tm_mon)+1) & RTC_MONTH_MASK), LPC17_RTC_MONTH);
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putreg32(((newtime.tm_year) & RTC_YEAR_MASK)+1900, LPC17_RTC_YEAR);
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return ret;
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}
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/************************************************************************************
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* Name: up_rtc_setalarm
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*
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* Description:
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* Set up an alarm. Up to two alarms can be supported (ALARM A and ALARM B).
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*
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* Input Parameters:
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* tp - the time to set the alarm
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* callback - the function to call when the alarm expires.
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*
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* Returned Value:
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||||
* Zero (OK) on success; a negated errno on failure
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*
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************************************************************************************/
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#ifdef CONFIG_RTC_ALARM
|
||||
int up_rtc_setalarm(FAR const struct timespec *tp, alarmcb_t callback)
|
||||
{
|
||||
irqstate_t flags;
|
||||
int ret = -EBUSY;
|
||||
|
||||
/* Is there already something waiting on the ALARM? */
|
||||
|
||||
if (g_alarmcb == NULL)
|
||||
{
|
||||
/* No.. Save the callback function pointer */
|
||||
|
||||
g_alarmcb = callback;
|
||||
|
||||
/* Break out the time values */
|
||||
#warning "Missing logic"
|
||||
|
||||
/* The set the alarm */
|
||||
#warning "Missing logic"
|
||||
|
||||
ret = OK;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* CONFIG_RTC */
|
||||
@@ -7,7 +7,7 @@
|
||||
*
|
||||
* This file is a part of NuttX:
|
||||
*
|
||||
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||
* Copyright (C) 2010, 2014 Gregory Nutt. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
@@ -159,7 +159,11 @@ static void dac_txint(FAR struct dac_dev_s *dev, bool enable)
|
||||
|
||||
static int dac_send(FAR struct dac_dev_s *dev, FAR struct dac_msg_s *msg)
|
||||
{
|
||||
putreg32((msg->am_data>>16)&0xfffff,LPC17_DAC_CR);
|
||||
/* adjust the binary value to the lpc1768's register format (plus high
|
||||
* speed profile in bit 16)
|
||||
*/
|
||||
|
||||
putreg32(((((msg->am_data) << 6) | 0x10000) & 0xffff), LPC17_DAC_CR);
|
||||
dac_txdone(&g_dacdev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -1,7 +1,7 @@
|
||||
############################################################################
|
||||
# configs/lpcxpresso-lpc1768/src/Makefile
|
||||
#
|
||||
# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
|
||||
# Copyright (C) 2011-2012, 2014 Gregory Nutt. All rights reserved.
|
||||
# Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
#
|
||||
# Redistribution and use in source and binary forms, with or without
|
||||
@@ -38,7 +38,7 @@
|
||||
CFLAGS += -I$(TOPDIR)/sched
|
||||
|
||||
ASRCS =
|
||||
CSRCS = up_boot.c up_leds.c up_ssp.c
|
||||
CSRCS = up_boot.c up_leds.c up_ssp.c up_adc.c up_dac.c up_pwm.c
|
||||
|
||||
ifeq ($(CONFIG_NSH_ARCHINIT),y)
|
||||
CSRCS += up_nsh.c
|
||||
|
||||
@@ -0,0 +1,123 @@
|
||||
/************************************************************************************
|
||||
* configs/lpcexpresso-1768/src/up_adc.c
|
||||
* arch/arm/src/board/up_adc.c
|
||||
*
|
||||
* Copyright (C) 2013 Zilogic Systems. All rights reserved.
|
||||
* Author: Kannan <code@nuttx.org>
|
||||
*
|
||||
* Based on configs/stm3220g-eval/src/up_adc.c
|
||||
*
|
||||
* Copyright (C) 2012, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/analog/adc.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "chip.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "lpc17_adc.h"
|
||||
#include "lpcxpresso_internal.h"
|
||||
|
||||
#ifdef CONFIG_ADC
|
||||
|
||||
/************************************************************************************
|
||||
* Definitions
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Private Data
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Name: adc_devinit
|
||||
*
|
||||
* Description:
|
||||
* All LPC17 architectures must provide the following interface to work with
|
||||
* examples/adc.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
int adc_devinit(void)
|
||||
{
|
||||
static bool initialized = false;
|
||||
struct adc_dev_s *adc;
|
||||
int ret;
|
||||
|
||||
/* Check if we have already initialized */
|
||||
|
||||
if (!initialized)
|
||||
{
|
||||
/* Call lpc17_adcinitialize() to get an instance of the ADC interface */
|
||||
|
||||
adc = lpc17_adcinitialize();
|
||||
if (adc == NULL)
|
||||
{
|
||||
adbg("ERROR: Failed to get ADC interface\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Register the ADC driver at "/dev/adc0" */
|
||||
|
||||
ret = adc_register("/dev/adc0", adc);
|
||||
if (ret < 0)
|
||||
{
|
||||
adbg("adc_register failed: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Now we are initialized */
|
||||
|
||||
initialized = true;
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_ADC */
|
||||
@@ -0,0 +1,100 @@
|
||||
/************************************************************************************
|
||||
* configs/zkit-arm-1769/src/up_dac.c
|
||||
* arch/arm/src/board/up_dac.c
|
||||
*
|
||||
* Copyright (C) 2013 Zilogic Systems. All rights reserved.
|
||||
* Author: Kannan <code@nuttx.org>
|
||||
*
|
||||
* Based on configs/stm3220g-eval/src/up_dac.c
|
||||
*
|
||||
* Copyright (C) 2012, 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/analog/dac.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
#include "lpc17_dac.h"
|
||||
|
||||
#ifdef CONFIG_DAC
|
||||
|
||||
/************************************************************************************
|
||||
* Name: dac_devinit
|
||||
*
|
||||
* Description:
|
||||
* All LPC17xx architectures must provide the following interface to work with
|
||||
* examples/diag.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
int dac_devinit(void)
|
||||
{
|
||||
static bool initialized = false;
|
||||
struct dac_dev_s *dac;
|
||||
int ret;
|
||||
|
||||
if (!initialized)
|
||||
{
|
||||
/* Call lpc17_dacinitialize() to get an instance of the dac interface */
|
||||
|
||||
dac = lpc17_dacinitialize();
|
||||
if (dac == NULL)
|
||||
{
|
||||
adbg("ERROR: Failed to get dac interface\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = dac_register("/dev/dac0", dac);
|
||||
if (ret < 0)
|
||||
{
|
||||
adbg("dac_register failed: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
initialized = true;
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_DAC */
|
||||
@@ -0,0 +1,152 @@
|
||||
/************************************************************************************
|
||||
* configs/lpcexpresso-lpc1768/up_pwm.c
|
||||
*
|
||||
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/pwm.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "chip.h"
|
||||
#include "up_arch.h"
|
||||
#include "lpc17_pwm.h"
|
||||
#include "lpc17_timer.h"
|
||||
#include "lpcxpresso_internal.h"
|
||||
|
||||
/************************************************************************************
|
||||
* Definitions
|
||||
************************************************************************************/
|
||||
|
||||
#ifdef CONFIG_PWM
|
||||
|
||||
FAR struct pwm_lowerhalf_s *lpc17_pwminitialize(int timer);
|
||||
FAR struct pwm_lowerhalf_s *lpc17_mcpwminitialize(int timer);
|
||||
FAR struct pwm_lowerhalf_s *lpc17_timerinitialize(int timer);
|
||||
|
||||
/************************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Name: pwm_devinit
|
||||
*
|
||||
* Description:
|
||||
* All LPC17 architectures must provide the following interface to work with
|
||||
* examples/pwm.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
int pwm_devinit(void)
|
||||
{
|
||||
static bool initialized = false;
|
||||
struct pwm_lowerhalf_s *pwm;
|
||||
struct pwm_lowerhalf_s *mcpwm;
|
||||
struct pwm_lowerhalf_s *timer;
|
||||
int ret;
|
||||
|
||||
/* Have we already initialized? */
|
||||
|
||||
if (!initialized)
|
||||
{
|
||||
/* Call lpc17_pwminitialize() to get an instance of the PWM interface */
|
||||
|
||||
pwm = lpc17_pwminitialize(0);
|
||||
if (!pwm)
|
||||
{
|
||||
adbg("Failed to get the LPC17XX PWM lower half\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Register the PWM driver at "/dev/pwm0" */
|
||||
|
||||
ret = pwm_register("/dev/pwm0", pwm);
|
||||
if (ret < 0)
|
||||
{
|
||||
adbg("pwm_register failed: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
mcpwm = lpc17_mcpwminitialize(0);
|
||||
if (!mcpwm)
|
||||
{
|
||||
adbg("Failed to get the LPC17XX MOTOR PWM lower half\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Register the MOTOR CONTROL PWM driver at "/dev/mcpwm0" */
|
||||
|
||||
ret = pwm_register("/dev/mcpwm0", mcpwm);
|
||||
if (ret < 0)
|
||||
{
|
||||
adbg("mcpwm_register failed: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
timer = lpc17_timerinitialize(0);
|
||||
if (!timer)
|
||||
{
|
||||
adbg("Failed to get the LPC17XX TIMER lower half\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Register the PWM driver at "/dev/timer0" */
|
||||
|
||||
ret = pwm_register("/dev/timer0", timer);
|
||||
if (ret < 0)
|
||||
{
|
||||
adbg("timer_register failed: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Now we are initialized */
|
||||
|
||||
initialized = true;
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_PWM */
|
||||
Reference in New Issue
Block a user