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LPC17xx DAC driver added, DMA lli fixed. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6737 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
theshed 2014-03-01 21:27:40 +00:00
parent 8d356f98e7
commit 3565edd4cd
10 changed files with 1715 additions and 2 deletions
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210
os/hal/platforms/LPC17xx/dac_lld.c Normal file
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@ -0,0 +1,210 @@
/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
LPC17xx DAC driver - Copyright (C) 2013 Marcin Jokel
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file LPC17xx/dac_lld.c
* @brief LPC17xx DAC subsystem low level driver source.
*
* @addtogroup DAC
* @{
*/
#include "ch.h"
#include "hal.h"
#if HAL_USE_DAC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/** @brief CHN1 driver identifier.*/
DACDriver DACD1;
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
static lpc17xx_dma_lli_config_t lpc_dac_lli[2] __attribute__((aligned(0x10)));
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/**
* @brief DAC DMA interrupt function.
*
* @param[in] dacp pointer to the @p DACDriver object
* @param[in] flags dma error flags
*/
static void dac_serve_dma_interrupt(DACDriver *dacp, uint32_t flags) {
if ((flags & (1 << LPC17xx_DAC_DMA_CHANNEL)) != 0) {
_dac_isr_error_code(dacp, flags); /* DMA errors handling.*/
}
else {
if (dacp->half_buffer == false) {
_dac_isr_half_code(dacp);
dacp->half_buffer = true;
}
else {
_dac_isr_full_code(dacp);
dacp->half_buffer = false;
}
}
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Low level DAC driver initialization.
*
* @notapi
*/
void dac_lld_init(void) {
dacObjectInit(&DACD1);
}
/**
* @brief Configures and activates the DAC peripheral.
*
* @param[in] dacp pointer to the @p DACDriver object
*
* @notapi
*/
void dac_lld_start(DACDriver *dacp) {
if (dacp->state == DAC_STOP) {
/* Enable DAC */
LPC_PINCON->PINSEL1 |= (2UL << 20); /* Set AOUT P0.26 pin.*/
LPC_DAC->CR = 0;
LPC_DAC->CTRL = 0;
LPC_DAC->CNTVAL = LPC17xx_PCLK/dacp->config->frequency;
dmaChannelAllocate(LPC17xx_DAC_DMA_CHANNEL, \
(lpc17xx_dmaisr_t)dac_serve_dma_interrupt, \
(void *)dacp);
}
}
/**
* @brief Deactivates the DAC peripheral.
*
* @param[in] dacp pointer to the @p DACDriver object
*
* @notapi
*/
void dac_lld_stop(DACDriver *dacp) {
/* If in ready state then disables the DAC clock.*/
if (dacp->state == DAC_READY) {
/* DMA disable.*/
dmaChannelDisable(LPC17xx_DAC_DMA_CHANNEL);
dmaChannelRelease(LPC17xx_DAC_DMA_CHANNEL);
/* Disable DAC */
LPC_PINCON->PINSEL1 &= ~(2UL << 20); /* Disable AOUT P0.26 pin.*/
}
}
/**
* @brief Sends data over the DAC bus.
* @details This asynchronous function starts a transmit operation.
* @post At the end of the operation the configured callback is invoked.
*
* @param[in] dacp pointer to the @p DACDriver object
* @param[in] n number of words to send
* @param[in] txbuf the pointer to the transmit buffer
*
* @notapi
*/
void dac_lld_start_conversion(DACDriver *dacp) {
dacp->half_buffer = false;
uint32_t dma_ch_config;
/* DMA configuration */
lpc_dac_lli[0].srcaddr = (uint32_t) &dacp->samples[0];
lpc_dac_lli[0].dstaddr = (uint32_t)&LPC_DAC->CR;
lpc_dac_lli[0].lli = (uint32_t) &lpc_dac_lli[1];
lpc_dac_lli[0].control =
DMA_CTRL_TRANSFER_SIZE(dacp->depth/2) |
DMA_CTRL_SRC_BSIZE_1 |
DMA_CTRL_DST_BSIZE_1 |
DMA_CTRL_SRC_WIDTH_WORD |
DMA_CTRL_DST_WIDTH_WORD |
DMA_CTRL_SRC_INC |
DMA_CTRL_DST_NOINC |
DMA_CTRL_PROT1_USER |
DMA_CTRL_PROT2_NONBUFF |
DMA_CTRL_PROT3_NONCACHE |
DMA_CTRL_INT;
lpc_dac_lli[1].srcaddr = (uint32_t) &dacp->samples[dacp->depth/2];
lpc_dac_lli[1].dstaddr = lpc_dac_lli[0].dstaddr;
lpc_dac_lli[1].control = lpc_dac_lli[0].control;
if (dacp->grpp->circular == true) {
lpc_dac_lli[1].lli = (uint32_t) &lpc_dac_lli[0];
}
else {
lpc_dac_lli[1].lli = 0;
}
dma_ch_config =
DMA_CFG_CH_ENABLE |
DMA_CFG_DST_PERIPH(DMA_DAC) |
DMA_CFG_TTYPE_M2P |
DMA_CFG_IE |
DMA_CFG_ITC;
dmaChannelSrcAddr(LPC17xx_DAC_DMA_CHANNEL, lpc_dac_lli[0].srcaddr);
dmaChannelDstAddr(LPC17xx_DAC_DMA_CHANNEL, lpc_dac_lli[0].dstaddr);
dmaChannelLinkedList(LPC17xx_DAC_DMA_CHANNEL, lpc_dac_lli[0].lli);
dmaChannelControl(LPC17xx_DAC_DMA_CHANNEL, lpc_dac_lli[0].control);
dmaChannelConfig(LPC17xx_DAC_DMA_CHANNEL, dma_ch_config);
LPC_DAC->CTRL = DACCTRL_DMA_ENA | DACCTRL_CNT_ENA | DACCTRL_DBLBUF_ENA;
}
void dac_lld_stop_conversion(DACDriver *dacp) {
/* If in active state then disables the DAC.*/
if (dacp->state == DAC_ACTIVE) {
/* DMA disable.*/
dmaChannelDisable(LPC17xx_DAC_DMA_CHANNEL);
}
};
#endif /* HAL_USE_DAC */
/** @} */

207
os/hal/platforms/LPC17xx/dac_lld.h Normal file
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@ -0,0 +1,207 @@
/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
LPC17xx DAC driver - Copyright (C) 2013 Marcin Jokel
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file LPC17xx/dac_lld.h
* @brief LPC17xx DAC subsystem low level driver header.
*
* @addtogroup DAC
* @{
*/
#ifndef _DAC_LLD_H_
#define _DAC_LLD_H_
#if HAL_USE_DAC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
#define DACR_BIAS (1UL << 16)
#define DACCTRL_INT_DMA_REQ (1UL << 0)
#define DACCTRL_DBLBUF_ENA (1UL << 1)
#define DACCTRL_CNT_ENA (1UL << 2)
#define DACCTRL_DMA_ENA (1UL << 3)
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name Configuration options
* @{
*/
/**
* @brief DMA stream used for DAC CHN1 TX operations.
* @note This option is only available on platforms with enhanced DMA.
*/
#if !defined(LPC17xx_DAC_DMA_CHANNEL) || defined(__DOXYGEN__)
#define LPC17xx_DAC_DMA_CHANNEL DMA_CHANNEL5
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if !defined(LPC17xx_DMA_REQUIRED)
#define LPC17xx_DMA_REQUIRED
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a structure representing an DAC driver.
*/
typedef struct DACDriver DACDriver;
/**
* @brief Type representing a DAC sample.
*/
typedef uint32_t dacsample_t;
/**
* @brief DAC notification callback type.
*
* @param[in] dacp pointer to the @p DACDriver object triggering the
* callback
*/
typedef void (*dacendcallback_t)(DACDriver *dacp, const dacsample_t * samples, size_t pos);
/**
* @brief DAC notification callback type.
*
* @param[in] dacp pointer to the @p DACDriver object triggering the
* callback
*/
typedef void (*dacerrcallback_t)(DACDriver *dacp, uint32_t flags);
/**
* @brief DAC Conversion group structure.
*/
typedef struct {
/**
* @brief Number of DAC channels.
*/
uint16_t num_channels;
/**
* @brief Operation complete callback or @p NULL.
*/
dacendcallback_t end_cb;
/**
* @brief Error handling callback or @p NULL.
*/
dacerrcallback_t error_cb;
/**
* @brief Error handling callback or @p NULL.
*/
bool circular;
} DACConversionGroup;
/**
* @brief Driver configuration structure.
*/
typedef struct {
/**
* @brief Timer frequency in Hz.
*/
uint32_t frequency;
/* End of the mandatory fields.*/
} DACConfig;
/**
* @brief Structure representing a DAC driver.
*/
struct DACDriver {
/**
* @brief Driver state.
*/
dacstate_t state;
/**
* @brief Conversion group.
*/
const DACConversionGroup *grpp;
/**
* @brief Samples buffer pointer.
*/
const dacsample_t *samples;
/**
* @brief Samples buffer size.
*/
uint16_t depth;
/**
* @brief Current configuration data.
*/
const DACConfig *config;
#if DAC_USE_WAIT || defined(__DOXYGEN__)
/**
* @brief Waiting thread.
*/
Thread *thread;
#endif /* DAC_USE_WAIT */
#if DAC_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
#if CH_USE_MUTEXES || defined(__DOXYGEN__)
/**
* @brief Mutex protecting the bus.
*/
Mutex mutex;
#elif CH_USE_SEMAPHORES
Semaphore semaphore;
#endif
#endif /* DAC_USE_MUTUAL_EXCLUSION */
#if defined(DAC_DRIVER_EXT_FIELDS)
DAC_DRIVER_EXT_FIELDS
#endif
/* End of the mandatory fields.*/
/**
* @brief Half buffer indicator.
*/
bool_t half_buffer;
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
extern DACDriver DACD1;
#ifdef __cplusplus
extern "C" {
#endif
void dac_lld_init(void);
void dac_lld_start(DACDriver *dacp);
void dac_lld_stop(DACDriver *dacp);
void dac_lld_start_conversion(DACDriver *dacp);
void dac_lld_stop_conversion(DACDriver *dacp);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_DAC */
#endif /* _DAC_LLD_H_ */
/** @} */

9
os/hal/platforms/LPC17xx/lpc17xx_dma.h
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@ -217,6 +217,13 @@ typedef struct {
volatile uint32_t config; /**< @brief Configuration. */
} lpc17xx_dma_channel_config_t;
typedef struct {
volatile uint32_t srcaddr; /**< @brief Source address. */
volatile uint32_t dstaddr; /**< @brief Destination address. */
volatile uint32_t lli; /**< @brief Linked List Item. */
volatile uint32_t control; /**< @brief Control. */
} lpc17xx_dma_lli_config_t;
/**
* @brief DMA channel number.
*/
@ -312,7 +319,7 @@ typedef void (*lpc17xx_dmaisr_t)(void *p, uint32_t flags);
* @special
*/
#define dmaChannelLinkedList(dmach, addr) \
_lpc17xx_dma_channel_config_t[dmach]->CLLI = (((uint32_t)(addr)) << 2)
_lpc17xx_dma_channel_config_t[dmach]->CLLI = ((uint32_t)(addr))
/**
* @brief Set control configuration to a DMA channel.

3
os/hal/platforms/LPC17xx/platform.mk
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@ -7,7 +7,8 @@ PLATFORMSRC = ${CHIBIOS}/os/hal/platforms/LPC17xx/hal_lld.c \
${CHIBIOS}/os/hal/platforms/LPC17xx/serial_lld.c \
${CHIBIOS}/os/hal/platforms/LPC17xx/rtc_lld.c \
${CHIBIOS}/os/hal/platforms/LPC17xx/i2c_lld.c \
${CHIBIOS}/os/hal/platforms/LPC17xx/spi_lld.c
${CHIBIOS}/os/hal/platforms/LPC17xx/spi_lld.c \
${CHIBIOS}/os/hal/platforms/LPC17xx/dac_lld.c
# Required include directories

3
os/hal/src/hal.c
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@ -74,6 +74,9 @@ void halInit(void) {
#if HAL_USE_CAN || defined(__DOXYGEN__)
canInit();
#endif
#if HAL_USE_DAC || defined(__DOXYGEN__)
dacInit();
#endif
#if HAL_USE_EXT || defined(__DOXYGEN__)
extInit();
#endif

197
testhal/LPC17xx/DAC/Makefile Normal file
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@ -0,0 +1,197 @@
##############################################################################
# Build global options
# NOTE: Can be overridden externally.
#
# Compiler options here.
ifeq ($(USE_OPT),)
USE_OPT = -O2 -ggdb -fomit-frame-pointer
endif
# C specific options here (added to USE_OPT).
ifeq ($(USE_COPT),)
USE_COPT =
endif
# C++ specific options here (added to USE_OPT).
ifeq ($(USE_CPPOPT),)
USE_CPPOPT = -fno-rtti
endif
# Enable this if you want the linker to remove unused code and data
ifeq ($(USE_LINK_GC),)
USE_LINK_GC = yes
endif
# If enabled, this option allows to compile the application in THUMB mode.
ifeq ($(USE_THUMB),)
USE_THUMB = yes
endif
# Enable this if you want to see the full log while compiling.
ifeq ($(USE_VERBOSE_COMPILE),)
USE_VERBOSE_COMPILE = no
endif
#
# Build global options
##############################################################################
##############################################################################
# Architecture or project specific options
#
#
# Architecture or project specific options
##############################################################################
##############################################################################
# Project, sources and paths
#
# Define project name here
PROJECT = ch
# Imported source files and paths
CHIBIOS = ../../..
include $(CHIBIOS)/boards/EA_LPCXPRESSO_LPC1769/board.mk
include $(CHIBIOS)/os/hal/platforms/LPC17xx/platform.mk
include $(CHIBIOS)/os/hal/hal.mk
include $(CHIBIOS)/os/ports/GCC/ARMCMx/LPC17xx/port.mk
include $(CHIBIOS)/os/kernel/kernel.mk
include $(CHIBIOS)/test/test.mk
# Define linker script file here
LDSCRIPT= $(PORTLD)/LPC1769.ld
# C sources that can be compiled in ARM or THUMB mode depending on the global
# setting.
CSRC = $(PORTSRC) \
$(KERNSRC) \
$(TESTSRC) \
$(HALSRC) \
$(PLATFORMSRC) \
$(BOARDSRC) \
$(CHIBIOS)/os/various/evtimer.c \
$(CHIBIOS)/os/various/syscalls.c \
main.c
# C++ sources that can be compiled in ARM or THUMB mode depending on the global
# setting.
CPPSRC =
# C sources to be compiled in ARM mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
ACSRC =
# C++ sources to be compiled in ARM mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
ACPPSRC =
# C sources to be compiled in THUMB mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
TCSRC =
# C sources to be compiled in THUMB mode regardless of the global setting.
# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
# option that results in lower performance and larger code size.
TCPPSRC =
# List ASM source files here
ASMSRC = $(PORTASM)
INCDIR = $(PORTINC) $(KERNINC) $(TESTINC) \
$(HALINC) $(PLATFORMINC) $(BOARDINC) \
$(CHIBIOS)/os/various
#
# Project, sources and paths
##############################################################################
##############################################################################
# Compiler settings
#
MCU = cortex-m3
#TRGT = arm-elf-
TRGT = arm-none-eabi-
CC = $(TRGT)gcc
CPPC = $(TRGT)g++
# Enable loading with g++ only if you need C++ runtime support.
# NOTE: You can use C++ even without C++ support if you are careful. C++
# runtime support makes code size explode.
LD = $(TRGT)gcc
#LD = $(TRGT)g++
CP = $(TRGT)objcopy
AS = $(TRGT)gcc -x assembler-with-cpp
OD = $(TRGT)objdump
HEX = $(CP) -O ihex
BIN = $(CP) -O binary
# ARM-specific options here
AOPT =
# THUMB-specific options here
TOPT = -mthumb -DTHUMB
# Define C warning options here
CWARN = -Wall -Wextra -Wstrict-prototypes
# Define C++ warning options here
CPPWARN = -Wall -Wextra
#
# Compiler settings
##############################################################################
##############################################################################
# Start of default section
#
# List all default C defines here, like -D_DEBUG=1
DDEFS = -DLPC17XX -D__NEWLIB__
# List all default ASM defines here, like -D_DEBUG=1
DADEFS =
# List all default directories to look for include files here
DINCDIR =
# List the default directory to look for the libraries here
DLIBDIR =
# List all default libraries here
DLIBS =
#
# End of default section
##############################################################################
##############################################################################
# Start of user section
#
# List all user C define here, like -D_DEBUG=1
UDEFS =
# Define ASM defines here
UADEFS =
# List all user directories here
UINCDIR =
# List the user directory to look for the libraries here
ULIBDIR =
# List all user libraries here
ULIBS =
#
# End of user defines
##############################################################################
include $(CHIBIOS)/os/ports/GCC/ARMCMx/rules.mk

531
testhal/LPC17xx/DAC/chconf.h Normal file
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@ -0,0 +1,531 @@
/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file templates/chconf.h
* @brief Configuration file template.
* @details A copy of this file must be placed in each project directory, it
* contains the application specific kernel settings.
*
* @addtogroup config
* @details Kernel related settings and hooks.
* @{
*/
#ifndef _CHCONF_H_
#define _CHCONF_H_
/*===========================================================================*/
/**
* @name Kernel parameters and options
* @{
*/
/*===========================================================================*/
/**
* @brief System tick frequency.
* @details Frequency of the system timer that drives the system ticks. This
* setting also defines the system tick time unit.
*/
#if !defined(CH_FREQUENCY) || defined(__DOXYGEN__)
#define CH_FREQUENCY 1000
#endif
/**
* @brief Round robin interval.
* @details This constant is the number of system ticks allowed for the
* threads before preemption occurs. Setting this value to zero
* disables the preemption for threads with equal priority and the
* round robin becomes cooperative. Note that higher priority
* threads can still preempt, the kernel is always preemptive.
*
* @note Disabling the round robin preemption makes the kernel more compact
* and generally faster.
*/
#if !defined(CH_TIME_QUANTUM) || defined(__DOXYGEN__)
#define CH_TIME_QUANTUM 20
#endif
/**
* @brief Managed RAM size.
* @details Size of the RAM area to be managed by the OS. If set to zero
* then the whole available RAM is used. The core memory is made
* available to the heap allocator and/or can be used directly through
* the simplified core memory allocator.
*
* @note In order to let the OS manage the whole RAM the linker script must
* provide the @p __heap_base__ and @p __heap_end__ symbols.
* @note Requires @p CH_USE_MEMCORE.
*/
#if !defined(CH_MEMCORE_SIZE) || defined(__DOXYGEN__)
#define CH_MEMCORE_SIZE 0
#endif
/**
* @brief Idle thread automatic spawn suppression.
* @details When this option is activated the function @p chSysInit()
* does not spawn the idle thread automatically. The application has
* then the responsibility to do one of the following:
* - Spawn a custom idle thread at priority @p IDLEPRIO.
* - Change the main() thread priority to @p IDLEPRIO then enter
* an endless loop. In this scenario the @p main() thread acts as
* the idle thread.
* .
* @note Unless an idle thread is spawned the @p main() thread must not
* enter a sleep state.
*/
#if !defined(CH_NO_IDLE_THREAD) || defined(__DOXYGEN__)
#define CH_NO_IDLE_THREAD FALSE
#endif
/** @} */
/*===========================================================================*/
/**
* @name Performance options
* @{
*/
/*===========================================================================*/
/**
* @brief OS optimization.
* @details If enabled then time efficient rather than space efficient code
* is used when two possible implementations exist.
*
* @note This is not related to the compiler optimization options.
* @note The default is @p TRUE.
*/
#if !defined(CH_OPTIMIZE_SPEED) || defined(__DOXYGEN__)
#define CH_OPTIMIZE_SPEED TRUE
#endif
/** @} */
/*===========================================================================*/
/**
* @name Subsystem options
* @{
*/
/*===========================================================================*/
/**
* @brief Threads registry APIs.
* @details If enabled then the registry APIs are included in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_REGISTRY) || defined(__DOXYGEN__)
#define CH_USE_REGISTRY TRUE
#endif
/**
* @brief Threads synchronization APIs.
* @details If enabled then the @p chThdWait() function is included in
* the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_WAITEXIT) || defined(__DOXYGEN__)
#define CH_USE_WAITEXIT TRUE
#endif
/**
* @brief Semaphores APIs.
* @details If enabled then the Semaphores APIs are included in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_SEMAPHORES) || defined(__DOXYGEN__)
#define CH_USE_SEMAPHORES TRUE
#endif
/**
* @brief Semaphores queuing mode.
* @details If enabled then the threads are enqueued on semaphores by
* priority rather than in FIFO order.
*
* @note The default is @p FALSE. Enable this if you have special requirements.
* @note Requires @p CH_USE_SEMAPHORES.
*/
#if !defined(CH_USE_SEMAPHORES_PRIORITY) || defined(__DOXYGEN__)
#define CH_USE_SEMAPHORES_PRIORITY FALSE
#endif
/**
* @brief Atomic semaphore API.
* @details If enabled then the semaphores the @p chSemSignalWait() API
* is included in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_USE_SEMAPHORES.
*/
#if !defined(CH_USE_SEMSW) || defined(__DOXYGEN__)
#define CH_USE_SEMSW TRUE
#endif
/**
* @brief Mutexes APIs.
* @details If enabled then the mutexes APIs are included in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_MUTEXES) || defined(__DOXYGEN__)
#define CH_USE_MUTEXES TRUE
#endif
/**
* @brief Conditional Variables APIs.
* @details If enabled then the conditional variables APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_USE_MUTEXES.
*/
#if !defined(CH_USE_CONDVARS) || defined(__DOXYGEN__)
#define CH_USE_CONDVARS TRUE
#endif
/**
* @brief Conditional Variables APIs with timeout.
* @details If enabled then the conditional variables APIs with timeout
* specification are included in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_USE_CONDVARS.
*/
#if !defined(CH_USE_CONDVARS_TIMEOUT) || defined(__DOXYGEN__)
#define CH_USE_CONDVARS_TIMEOUT TRUE
#endif
/**
* @brief Events Flags APIs.
* @details If enabled then the event flags APIs are included in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_EVENTS) || defined(__DOXYGEN__)
#define CH_USE_EVENTS TRUE
#endif
/**
* @brief Events Flags APIs with timeout.
* @details If enabled then the events APIs with timeout specification
* are included in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_USE_EVENTS.
*/
#if !defined(CH_USE_EVENTS_TIMEOUT) || defined(__DOXYGEN__)
#define CH_USE_EVENTS_TIMEOUT TRUE
#endif
/**
* @brief Synchronous Messages APIs.
* @details If enabled then the synchronous messages APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_MESSAGES) || defined(__DOXYGEN__)
#define CH_USE_MESSAGES TRUE
#endif
/**
* @brief Synchronous Messages queuing mode.
* @details If enabled then messages are served by priority rather than in
* FIFO order.
*
* @note The default is @p FALSE. Enable this if you have special requirements.
* @note Requires @p CH_USE_MESSAGES.
*/
#if !defined(CH_USE_MESSAGES_PRIORITY) || defined(__DOXYGEN__)
#define CH_USE_MESSAGES_PRIORITY FALSE
#endif
/**
* @brief Mailboxes APIs.
* @details If enabled then the asynchronous messages (mailboxes) APIs are
* included in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_USE_SEMAPHORES.
*/
#if !defined(CH_USE_MAILBOXES) || defined(__DOXYGEN__)
#define CH_USE_MAILBOXES TRUE
#endif
/**
* @brief I/O Queues APIs.
* @details If enabled then the I/O queues APIs are included in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_QUEUES) || defined(__DOXYGEN__)
#define CH_USE_QUEUES TRUE
#endif
/**
* @brief Core Memory Manager APIs.
* @details If enabled then the core memory manager APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_MEMCORE) || defined(__DOXYGEN__)
#define CH_USE_MEMCORE TRUE
#endif
/**
* @brief Heap Allocator APIs.
* @details If enabled then the memory heap allocator APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_USE_MEMCORE and either @p CH_USE_MUTEXES or
* @p CH_USE_SEMAPHORES.
* @note Mutexes are recommended.
*/
#if !defined(CH_USE_HEAP) || defined(__DOXYGEN__)
#define CH_USE_HEAP TRUE
#endif
/**
* @brief C-runtime allocator.
* @details If enabled the the heap allocator APIs just wrap the C-runtime
* @p malloc() and @p free() functions.
*
* @note The default is @p FALSE.
* @note Requires @p CH_USE_HEAP.
* @note The C-runtime may or may not require @p CH_USE_MEMCORE, see the
* appropriate documentation.
*/
#if !defined(CH_USE_MALLOC_HEAP) || defined(__DOXYGEN__)
#define CH_USE_MALLOC_HEAP FALSE
#endif
/**
* @brief Memory Pools Allocator APIs.
* @details If enabled then the memory pools allocator APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
*/
#if !defined(CH_USE_MEMPOOLS) || defined(__DOXYGEN__)
#define CH_USE_MEMPOOLS TRUE
#endif
/**
* @brief Dynamic Threads APIs.
* @details If enabled then the dynamic threads creation APIs are included
* in the kernel.
*
* @note The default is @p TRUE.
* @note Requires @p CH_USE_WAITEXIT.
* @note Requires @p CH_USE_HEAP and/or @p CH_USE_MEMPOOLS.
*/
#if !defined(CH_USE_DYNAMIC) || defined(__DOXYGEN__)
#define CH_USE_DYNAMIC TRUE
#endif
/** @} */
/*===========================================================================*/
/**
* @name Debug options
* @{
*/
/*===========================================================================*/
/**
* @brief Debug option, system state check.
* @details If enabled the correct call protocol for system APIs is checked
* at runtime.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_SYSTEM_STATE_CHECK) || defined(__DOXYGEN__)
#define CH_DBG_SYSTEM_STATE_CHECK FALSE
#endif
/**
* @brief Debug option, parameters checks.
* @details If enabled then the checks on the API functions input
* parameters are activated.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_ENABLE_CHECKS) || defined(__DOXYGEN__)
#define CH_DBG_ENABLE_CHECKS FALSE
#endif
/**
* @brief Debug option, consistency checks.
* @details If enabled then all the assertions in the kernel code are
* activated. This includes consistency checks inside the kernel,
* runtime anomalies and port-defined checks.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_ENABLE_ASSERTS) || defined(__DOXYGEN__)
#define CH_DBG_ENABLE_ASSERTS FALSE
#endif
/**
* @brief Debug option, trace buffer.
* @details If enabled then the context switch circular trace buffer is
* activated.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_ENABLE_TRACE) || defined(__DOXYGEN__)
#define CH_DBG_ENABLE_TRACE FALSE
#endif
/**
* @brief Debug option, stack checks.
* @details If enabled then a runtime stack check is performed.
*
* @note The default is @p FALSE.
* @note The stack check is performed in a architecture/port dependent way.
* It may not be implemented or some ports.
* @note The default failure mode is to halt the system with the global
* @p panic_msg variable set to @p NULL.
*/
#if !defined(CH_DBG_ENABLE_STACK_CHECK) || defined(__DOXYGEN__)
#define CH_DBG_ENABLE_STACK_CHECK FALSE
#endif
/**
* @brief Debug option, stacks initialization.
* @details If enabled then the threads working area is filled with a byte
* value when a thread is created. This can be useful for the
* runtime measurement of the used stack.
*
* @note The default is @p FALSE.
*/
#if !defined(CH_DBG_FILL_THREADS) || defined(__DOXYGEN__)
#define CH_DBG_FILL_THREADS FALSE
#endif
/**
* @brief Debug option, threads profiling.
* @details If enabled then a field is added to the @p Thread structure that
* counts the system ticks occurred while executing the thread.
*
* @note The default is @p TRUE.
* @note This debug option is defaulted to TRUE because it is required by
* some test cases into the test suite.
*/
#if !defined(CH_DBG_THREADS_PROFILING) || defined(__DOXYGEN__)
#define CH_DBG_THREADS_PROFILING TRUE
#endif
/** @} */
/*===========================================================================*/
/**
* @name Kernel hooks
* @{
*/
/*===========================================================================*/
/**
* @brief Threads descriptor structure extension.
* @details User fields added to the end of the @p Thread structure.
*/
#if !defined(THREAD_EXT_FIELDS) || defined(__DOXYGEN__)
#define THREAD_EXT_FIELDS \
/* Add threads custom fields here.*/
#endif
/**
* @brief Threads initialization hook.
* @details User initialization code added to the @p chThdInit() API.
*
* @note It is invoked from within @p chThdInit() and implicitly from all
* the threads creation APIs.
*/
#if !defined(THREAD_EXT_INIT_HOOK) || defined(__DOXYGEN__)
#define THREAD_EXT_INIT_HOOK(tp) { \
/* Add threads initialization code here.*/ \
}
#endif
/**
* @brief Threads finalization hook.
* @details User finalization code added to the @p chThdExit() API.
*
* @note It is inserted into lock zone.
* @note It is also invoked when the threads simply return in order to
* terminate.
*/
#if !defined(THREAD_EXT_EXIT_HOOK) || defined(__DOXYGEN__)
#define THREAD_EXT_EXIT_HOOK(tp) { \
/* Add threads finalization code here.*/ \
}
#endif
/**
* @brief Context switch hook.
* @details This hook is invoked just before switching between threads.
*/
#if !defined(THREAD_CONTEXT_SWITCH_HOOK) || defined(__DOXYGEN__)
#define THREAD_CONTEXT_SWITCH_HOOK(ntp, otp) { \
/* System halt code here.*/ \
}
#endif
/**
* @brief Idle Loop hook.
* @details This hook is continuously invoked by the idle thread loop.
*/
#if !defined(IDLE_LOOP_HOOK) || defined(__DOXYGEN__)
#define IDLE_LOOP_HOOK() { \
/* Idle loop code here.*/ \
}
#endif
/**
* @brief System tick event hook.
* @details This hook is invoked in the system tick handler immediately
* after processing the virtual timers queue.
*/
#if !defined(SYSTEM_TICK_EVENT_HOOK) || defined(__DOXYGEN__)
#define SYSTEM_TICK_EVENT_HOOK() { \
/* System tick event code here.*/ \
}
#endif
/**
* @brief System halt hook.
* @details This hook is invoked in case to a system halting error before
* the system is halted.
*/
#if !defined(SYSTEM_HALT_HOOK) || defined(__DOXYGEN__)
#define SYSTEM_HALT_HOOK() { \
/* System halt code here.*/ \
}
#endif
/** @} */
/*===========================================================================*/
/* Port-specific settings (override port settings defaulted in chcore.h). */
/*===========================================================================*/
#endif /* _CHCONF_H_ */
/** @} */

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/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file templates/halconf.h
* @brief HAL configuration header.
* @details HAL configuration file, this file allows to enable or disable the
* various device drivers from your application. You may also use
* this file in order to override the device drivers default settings.
*
* @addtogroup HAL_CONF
* @{
*/
#ifndef _HALCONF_H_
#define _HALCONF_H_
#include "mcuconf.h"
/**
* @brief Enables the TM subsystem.
*/
#if !defined(HAL_USE_TM) || defined(__DOXYGEN__)
#define HAL_USE_TM FALSE
#endif
/**
* @brief Enables the PAL subsystem.
*/
#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)
#define HAL_USE_PAL TRUE
#endif
/**
* @brief Enables the ADC subsystem.
*/
#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
#define HAL_USE_ADC TRUE
#endif
/**
* @brief Enables the CAN subsystem.
*/
#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__)
#define HAL_USE_CAN FALSE
#endif
/**
* @brief Enables the DAC subsystem.
*/
#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
#define HAL_USE_DAC TRUE
#endif
/**
* @brief Enables the EXT subsystem.
*/
#if !defined(HAL_USE_EXT) || defined(__DOXYGEN__)
#define HAL_USE_EXT FALSE
#endif
/**
* @brief Enables the GPT subsystem.
*/
#if !defined(HAL_USE_GPT) || defined(__DOXYGEN__)
#define HAL_USE_GPT TRUE
#endif
/**
* @brief Enables the I2C subsystem.
*/
#if !defined(HAL_USE_I2C) || defined(__DOXYGEN__)
#define HAL_USE_I2C TRUE
#endif
/**
* @brief Enables the ICU subsystem.
*/
#if !defined(HAL_USE_ICU) || defined(__DOXYGEN__)
#define HAL_USE_ICU FALSE
#endif
/**
* @brief Enables the MAC subsystem.
*/
#if !defined(HAL_USE_MAC) || defined(__DOXYGEN__)
#define HAL_USE_MAC FALSE
#endif
/**
* @brief Enables the MMC_SPI subsystem.
*/
#if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__)
#define HAL_USE_MMC_SPI FALSE
#endif
/**
* @brief Enables the PWM subsystem.
*/
#if !defined(HAL_USE_PWM) || defined(__DOXYGEN__)
#define HAL_USE_PWM FALSE
#endif
/**
* @brief Enables the RTC subsystem.
*/
#if !defined(HAL_USE_RTC) || defined(__DOXYGEN__)
#define HAL_USE_RTC TRUE
#endif
/**
* @brief Enables the SDC subsystem.
*/
#if !defined(HAL_USE_SDC) || defined(__DOXYGEN__)
#define HAL_USE_SDC FALSE
#endif
/**
* @brief Enables the SERIAL subsystem.
*/
#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
#define HAL_USE_SERIAL TRUE
#endif
/**
* @brief Enables the SERIAL over USB subsystem.
*/
#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
#define HAL_USE_SERIAL_USB FALSE
#endif
/**
* @brief Enables the SPI subsystem.
*/
#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__)
#define HAL_USE_SPI FALSE
#endif
/**
* @brief Enables the UART subsystem.
*/
#if !defined(HAL_USE_UART) || defined(__DOXYGEN__)
#define HAL_USE_UART FALSE
#endif
/**
* @brief Enables the USB subsystem.
*/
#if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
#define HAL_USE_USB FALSE
#endif
/**
* @brief Enables the DAC subsystem.
*/
#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
#define HAL_USE_DAC TRUE
#endif
/*===========================================================================*/
/* ADC driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(ADC_USE_WAIT) || defined(__DOXYGEN__)
#define ADC_USE_WAIT TRUE
#endif
/**
* @brief Enables the @p adcAcquireBus() and @p adcReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define ADC_USE_MUTUAL_EXCLUSION TRUE
#endif
/*===========================================================================*/
/* CAN driver related settings. */
/*===========================================================================*/
/**
* @brief Sleep mode related APIs inclusion switch.
*/
#if !defined(CAN_USE_SLEEP_MODE) || defined(__DOXYGEN__)
#define CAN_USE_SLEEP_MODE TRUE
#endif
/*===========================================================================*/
/* I2C driver related settings. */
/*===========================================================================*/
/**
* @brief Enables the mutual exclusion APIs on the I2C bus.
*/
#if !defined(I2C_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define I2C_USE_MUTUAL_EXCLUSION TRUE
#endif
/*===========================================================================*/
/* MAC driver related settings. */
/*===========================================================================*/
/**
* @brief Enables an event sources for incoming packets.
*/
#if !defined(MAC_USE_ZERO_COPY) || defined(__DOXYGEN__)
#define MAC_USE_ZERO_COPY FALSE
#endif
/**
* @brief Enables an event sources for incoming packets.
*/
#if !defined(MAC_USE_EVENTS) || defined(__DOXYGEN__)
#define MAC_USE_EVENTS TRUE
#endif
/*===========================================================================*/
/* MMC_SPI driver related settings. */
/*===========================================================================*/
/**
* @brief Delays insertions.
* @details If enabled this options inserts delays into the MMC waiting
* routines releasing some extra CPU time for the threads with
* lower priority, this may slow down the driver a bit however.
* This option is recommended also if the SPI driver does not
* use a DMA channel and heavily loads the CPU.
*/
#if !defined(MMC_NICE_WAITING) || defined(__DOXYGEN__)
#define MMC_NICE_WAITING TRUE
#endif
/*===========================================================================*/
/* SDC driver related settings. */
/*===========================================================================*/
/**
* @brief Number of initialization attempts before rejecting the card.
* @note Attempts are performed at 10mS intervals.
*/
#if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__)
#define SDC_INIT_RETRY 100
#endif
/**
* @brief Include support for MMC cards.
* @note MMC support is not yet implemented so this option must be kept
* at @p FALSE.
*/
#if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__)
#define SDC_MMC_SUPPORT FALSE
#endif
/**
* @brief Delays insertions.
* @details If enabled this options inserts delays into the MMC waiting
* routines releasing some extra CPU time for the threads with
* lower priority, this may slow down the driver a bit however.
*/
#if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__)
#define SDC_NICE_WAITING TRUE
#endif
/*===========================================================================*/
/* SERIAL driver related settings. */
/*===========================================================================*/
/**
* @brief Default bit rate.
* @details Configuration parameter, this is the baud rate selected for the
* default configuration.
*/
#if !defined(SERIAL_DEFAULT_BITRATE) || defined(__DOXYGEN__)
#define SERIAL_DEFAULT_BITRATE 38400
#endif
/**
* @brief Serial buffers size.
* @details Configuration parameter, you can change the depth of the queue
* buffers depending on the requirements of your application.
* @note The default is 64 bytes for both the transmission and receive
* buffers.
*/
#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
#define SERIAL_BUFFERS_SIZE 16
#endif
/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__)
#define SPI_USE_WAIT TRUE
#endif
/**
* @brief Enables the @p spiAcquireBus() and @p spiReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define SPI_USE_MUTUAL_EXCLUSION TRUE
#endif
/*===========================================================================*/
/* DAC driver related settings. */
/*===========================================================================*/
/**
* @brief Enables synchronous APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(DAC_USE_WAIT) || defined(__DOXYGEN__)
#define DAC_USE_WAIT TRUE
#endif
/**
* @brief Enables the @p dacAcquireBus() and @p dacReleaseBus() APIs.
* @note Disabling this option saves both code and data space.
*/
#if !defined(DAC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
#define DAC_USE_MUTUAL_EXCLUSION TRUE
#endif
#endif /* _HALCONF_H_ */
/** @} */

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/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "ch.h"
#include "hal.h"
#define NSAMPLES 255
const uint32_t sine_wave[NSAMPLES] = {
512 << 6, 524 << 6, 537 << 6, 549 << 6, 562 << 6, 574 << 6, 587 << 6, 599 << 6, 612 << 6, 624 << 6,
636 << 6, 649 << 6, 661 << 6, 673 << 6, 685 << 6, 696 << 6, 708 << 6, 720 << 6, 731 << 6, 743 << 6,
754 << 6, 765 << 6, 776 << 6, 786 << 6, 797 << 6, 807 << 6, 818 << 6, 828 << 6, 837 << 6, 847 << 6,
856 << 6, 866 << 6, 875 << 6, 883 << 6, 892 << 6, 900 << 6, 908 << 6, 916 << 6, 924 << 6, 931 << 6,
938 << 6, 945 << 6, 952 << 6, 958 << 6, 964 << 6, 970 << 6, 975 << 6, 981 << 6, 985 << 6, 990 << 6,
994 << 6, 998 << 6, 1002 << 6, 1006 << 6, 1009 << 6, 1012 << 6, 1014 << 6, 1016 << 6, 1018 << 6, 1020 << 6,
1021 << 6, 1022 << 6, 1023 << 6, 1023 << 6, 1023 << 6, 1023 << 6, 1023 << 6, 1022 << 6, 1021 << 6, 1019 << 6,
1017 << 6, 1015 << 6, 1013 << 6, 1010 << 6, 1007 << 6, 1004 << 6, 1000 << 6, 996 << 6, 992 << 6, 988 << 6,
983 << 6, 978 << 6, 973 << 6, 967 << 6, 961 << 6, 955 << 6, 948 << 6, 942 << 6, 935 << 6, 928 << 6,
920 << 6, 912 << 6, 904 << 6, 896 << 6, 888 << 6, 879 << 6, 870 << 6, 861 << 6, 852 << 6, 842 << 6,
832 << 6, 823 << 6, 812 << 6, 802 << 6, 792 << 6, 781 << 6, 770 << 6, 759 << 6, 748 << 6, 737 << 6,
725 << 6, 714 << 6, 702 << 6, 691 << 6, 679 << 6, 667 << 6, 655 << 6, 642 << 6, 630 << 6, 618 << 6,
606 << 6, 593 << 6, 581 << 6, 568 << 6, 556 << 6, 543 << 6, 530 << 6, 518 << 6, 505 << 6, 493 << 6,
480 << 6, 467 << 6, 455 << 6, 442 << 6, 430 << 6, 417 << 6, 405 << 6, 393 << 6, 381 << 6, 368 << 6,
356 << 6, 344 << 6, 332 << 6, 321 << 6, 309 << 6, 298 << 6, 286 << 6, 275 << 6, 264 << 6, 253 << 6,
242 << 6, 231 << 6, 221 << 6, 211 << 6, 200 << 6, 191 << 6, 181 << 6, 171 << 6, 162 << 6, 153 << 6,
144 << 6, 135 << 6, 127 << 6, 119 << 6, 111 << 6, 103 << 6, 95 << 6, 88 << 6, 81 << 6, 75 << 6,
68 << 6, 62 << 6, 56 << 6, 50 << 6, 45 << 6, 40 << 6, 35 << 6, 31 << 6, 27 << 6, 23 << 6,
19 << 6, 16 << 6, 13 << 6, 10 << 6, 8 << 6, 6 << 6, 4 << 6, 2 << 6, 1 << 6, 0 << 6,
0 << 6, 0 << 6, 0 << 6, 0 << 6, 1 << 6, 2 << 6, 3 << 6, 5 << 6, 7 << 6, 9 << 6,
11 << 6, 14 << 6, 17 << 6, 21 << 6, 25 << 6, 29 << 6, 33 << 6, 38 << 6, 42 << 6, 48 << 6,
53 << 6, 59 << 6, 65 << 6, 71 << 6, 78 << 6, 85 << 6, 92 << 6, 99 << 6, 107 << 6, 115 << 6,
123 << 6, 131 << 6, 140 << 6, 148 << 6, 157 << 6, 167 << 6, 176 << 6, 186 << 6, 195 << 6, 205 << 6,
216 << 6, 226 << 6, 237 << 6, 247 << 6, 258 << 6, 269 << 6, 280 << 6, 292 << 6, 303 << 6, 315 << 6,
327 << 6, 338 << 6, 350 << 6, 362 << 6, 374 << 6, 387 << 6, 399 << 6, 411 << 6, 424 << 6, 436 << 6,
449 << 6, 461 << 6, 474 << 6, 486 << 6, 499 << 6};
/*
* Red LEDs blinker thread, times are in milliseconds.
*/
static WORKING_AREA(waThread1, 128);
static msg_t Thread1(void *arg) {
(void)arg;
chRegSetThreadName("blinker");
while (TRUE) {
palTogglePad(GPIO0, GPIO0_LED2_RED);
chThdSleepMilliseconds(500);
}
}
/*
* DAC conversion groups, with callbacks.
*/
static const DACConversionGroup dacconvgrp1 = {
1, /* Channels */
NULL, /* End of transfer callback */
NULL, /* Error callback */
true /*circular mode */
};
/*
* DAC config
*/
static const DACConfig daccfg1 = {
1000*NSAMPLES, /* Multiply the buffer size to the desired frequency in Hz */
};
/*
* Application entry point.
*/
int main(void) {
/*
* System initializations.
* - HAL initialization, this also initializes the configured device drivers
* and performs the board-specific initializations.
* - Kernel initialization, the main() function becomes a thread and the
* RTOS is active.
*/
halInit();
chSysInit();
/*
* Creates the blinker thread.
*/
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
/*
* Starting the DAC driver.
*/
dacStart(&DACD1, &daccfg1);
/*
* Sending the dac_buffer
*/
dacStartConversion(&DACD1, &dacconvgrp1, sine_wave, NSAMPLES);
while (TRUE) {
chThdSleepMilliseconds(1000);
}
}

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/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
* LPC17xx drivers configuration.
* The following settings override the default settings present in
* the various device driver implementation headers.
* Note that the settings for each driver only have effect if the driver
* is enabled in halconf.h.
*
* IRQ priorities:
* 7...0 Lowest...highest.
*/
/*
* HAL driver system settings.
*/
#define LPC17xx_MAINOSC_ENABLE TRUE
#define LPC17xx_SYSCLK_SELECT CLKSRCSEL_MAINOSC
#define LPC17xx_MAINPLL_ENABLE TRUE
#define LPC17xx_MAINPLL_MUL 30
#define LPC17xx_MAINPLL_PREDIV 1
#define LPC17xx_USBPLL_ENABLE FALSE
#define LPC17xx_USBPLL_MUL 4
#define LPC17xx_USBPLL_DIV 4
#define LPC17xx_CCLK_DIV 3
#define LPC17xx_PCLK_SELECT PCLKSEL_CCLK
#define LPC17xx_CLKOUT_ENABLE FALSE
#define LPC17xx_CLKOUT_DIV 4
#define LPC17xx_CLKOUT_SELECT CLKOUTSEL_CCLK
/*
* GPT driver system settings.
*/
#define LPC17xx_GPT_USE_TIM0 TRUE
#define LPC17xx_GPT_USE_TIM1 TRUE
#define LPC17xx_GPT_USE_TIM2 TRUE
#define LPC17xx_GPT_USE_TIM3 TRUE
#define LPC17xx_GPT_TIM0_IRQ_PRIORITY 2
#define LPC17xx_GPT_TIM1_IRQ_PRIORITY 6
#define LPC17xx_GPT_TIM2_IRQ_PRIORITY 2
#define LPC17xx_GPT_TIM3_IRQ_PRIORITY 2
/*
* SERIAL driver system settings.
*/
#define LPC17xx_SERIAL_USE_UART0 TRUE
#define LPC17xx_SERIAL_USE_UART1 FALSE
#define LPC17xx_SERIAL_USE_UART2 FALSE
#define LPC17xx_SERIAL_USE_UART3 FALSE
#define LPC17xx_SERIAL_FIFO_PRELOAD 16
#define LPC17xx_SERIAL_UART0_IRQ_PRIORITY 3
#define LPC17xx_SERIAL_UART1_IRQ_PRIORITY 3
#define LPC17xx_SERIAL_UART2_IRQ_PRIORITY 3
#define LPC17xx_SERIAL_UART3_IRQ_PRIORITY 3
/*
* I2C driver system settings.
*/
#define LPC17xx_I2C_USE_I2C0 FALSE
#define LPC17xx_I2C_USE_I2C1 TRUE
#define LPC17xx_I2C_USE_I2C2 FALSE
#define LPC17xx_I2C_I2C0_IRQ_PRIORITY 3
#define LPC17xx_I2C_I2C1_IRQ_PRIORITY 3
#define LPC17xx_I2C_I2C2_IRQ_PRIORITY 3
/*
* SPI driver system settings.
*/
#define LPC17xx_SPI_USE_SSP0 FALSE
#define LPC17xx_SPI_USE_SSP1 FALSE
#define LPC17xx_SPI_SSP0CLKDIV 1
#define LPC17xx_SPI_SSP1CLKDIV 1
#define LPC17xx_SPI_SSP0_IRQ_PRIORITY 5
#define LPC17xx_SPI_SSP1_IRQ_PRIORITY 5
/*
* RTC driver system settings.
*/
#define LPC17xx_RTC_IS_CALENDAR TRUE
#define LPC17xx_RTC_USE_ALARM TRUE
#define LPC17xx_RTC_IRQ_PRIORITY 3