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More LPC43xx logic

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4906 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-07-04 22:03:00 +00:00
parent d36bf9f183
commit 92e24d894a
17 changed files with 1228 additions and 65 deletions
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36
arch/arm/src/lpc43xx/Make.defs
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@ -33,35 +33,39 @@
#
############################################################################
HEAD_ASRC =
HEAD_ASRC =
CMN_ASRCS = up_saveusercontext.S up_fullcontextrestore.S up_switchcontext.S
CMN_CSRCS = up_assert.c up_blocktask.c up_copystate.c \
up_createstack.c up_mdelay.c up_udelay.c up_exit.c \
up_initialize.c up_initialstate.c up_interruptcontext.c \
up_memfault.c up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \
up_releasepending.c up_releasestack.c up_reprioritizertr.c \
up_schedulesigaction.c up_sigdeliver.c up_unblocktask.c \
up_usestack.c up_doirq.c up_hardfault.c up_svcall.c
CMN_ASRCS = up_saveusercontext.S up_fullcontextrestore.S up_switchcontext.S
CMN_CSRCS += up_assert.c up_blocktask.c up_copystate.c
CMN_CSRCS += up_createstack.c up_mdelay.c up_udelay.c up_exit.c
CMN_CSRCS += up_initialize.c up_initialstate.c up_interruptcontext.c
CMN_CSRCS += up_memfault.c up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c
CMN_CSRCS += up_releasepending.c up_releasestack.c up_reprioritizertr.c
CMN_CSRCS += up_schedulesigaction.c up_sigdeliver.c up_unblocktask.c
CMN_CSRCS += up_usestack.c up_doirq.c up_hardfault.c up_svcall.c
ifeq ($(CONFIG_ARMV7M_CMNVECTOR),y)
CMN_ASRCS += up_exception.S
CMN_CSRCS += up_vectors.c
CMN_ASRCS += up_exception.S
CMN_CSRCS += up_vectors.c
endif
ifeq ($(CONFIG_DEBUG_STACK),y)
CMN_CSRCS += up_checkstack.c
CMN_CSRCS += up_checkstack.c
endif
ifeq ($(CONFIG_ARCH_FPU),y)
CMN_ASRCS += up_fpu.S
CMN_ASRCS += up_fpu.S
endif
CHIP_ASRCS =
CHIP_CSRCS = lpc43_irq.c lpc43_start.c
CHIP_ASRCS =
CHIP_CSRCS = lpc43_clrpend.c lpc43_gpio.c lpc43_irq.c lpc43_lowputc.c
CHIP_CSRCS += lpc43_pinconfig.c lpc43_start.c lpc43_timerisr.c
ifneq ($(CONFIG_IDLE_CUSTOM),y)
CHIP_CSRCS += lpc43_idle.c
CHIP_CSRCS += lpc43_idle.c
endif
ifneq ($(CONFIG_DEBUG),y)
CHIP_CSRCS += lpc43_debug.c
endif

99
arch/arm/src/lpc43xx/lpc43_clrpend.c Normal file
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@ -0,0 +1,99 @@
/****************************************************************************
* arch/arm/src/lpc43/lpc43_clrpend.c
* arch/arm/src/chip/lpc43_clrpend.c
*
* Copyright (C) 2012 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 <arch/irq.h>
#include "nvic.h"
#include "up_arch.h"
#include "lpc43_irq.h"
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: lpc43_clrpend
*
* Description:
* Clear a pending interrupt at the NVIC. This does not seem to be required
* for most interrupts. Don't know why... but the LPC4366 Ethernet EMAC
* interrupt definitely needs it!
*
* This function is logically a part of lpc43_irq.c, but I will keep it in
* a separate file so that it will not increase the footprint on LPC43xx
* platforms that do not need this function.
*
****************************************************************************/
void lpc43_clrpend(int irq)
{
/* Check for external interrupt */
if (irq >= LPC43_IRQ_EXTINT)
{
if (irq < (LPC43_IRQ_EXTINT + 32))
{
putreg32(1 << (irq - LPC43_IRQ_EXTINT), NVIC_IRQ0_31_CLRPEND);
}
else if (irq < LPC43M4_IRQ_NIRQS)
{
putreg32(1 << (irq - LPC43_IRQ_EXTINT - 32), NVIC_IRQ32_63_CLRPEND);
}
}
}

94
arch/arm/src/lpc43xx/lpc43_debug.c Normal file
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@ -0,0 +1,94 @@
/****************************************************************************
* arch/arm/src/lpc43/lpc43_pinconfig.c
*
* Copyright (C) 2012 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 <arch/board/board.h>
#include <nuttx/config.h>
#include <nuttx/arch.h>
#include <errno.h>
#include "lpc43_pinconfig.h"
#ifdef CONFIG_DEBUG
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: lpc43_dumppinconfig
*
* Description:
* Dump all pin configuration registers associated with the provided pin
* configuration
*
****************************************************************************/
int lpc43_dumppinconfig(uint32_t pinconf, const char *msg)
{
#warning "Missing logic"
return -ENOSYS;
}
/********************************************************************************************
* Function: lpc43_dumpgpio
*
* Description:
* Dump all pin configuration registers associated with the provided base address
*
********************************************************************************************/
int lpc43_dumpgpio(uint16_t gpiocfg, const char *msg)
{
#warning "Missing logic"
return -ENOSYS;
}
#endif /* CONFIG_DEBUG */

115
arch/arm/src/lpc43xx/lpc43_gpio.c Normal file
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@ -0,0 +1,115 @@
/****************************************************************************
* arch/arm/src/lpc43/lpc43_gpio.c
*
* Copyright (C) 2012 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 <arch/board/board.h>
#include <nuttx/config.h>
#include <nuttx/arch.h>
#include <errno.h>
#include "lpc43_pinconfig.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: lpc43_gpioconfig
*
* Description:
* Configure a GPIO based on bit-encoded description of the pin.
*
* Returned Value:
* OK on success; A negated errno value on failure.
*
****************************************************************************/
int lpc43_gpioconfig(uint16_t gpiocfg)
{
#warning "Missing logic"
return -ENOSYS;
}
/****************************************************************************
* Name: lpc43_gpiowrite
*
* Description:
* Write one or zero to the selected GPIO pin
*
* Returned Value:
* None
*
****************************************************************************/
void lpc43_gpiowrite(uint16_t gpiocfg, bool value)
{
#warning "Missing logic"
}
/****************************************************************************
* Name: lpc43_gpioread
*
* Description:
* Read one or zero from the selected GPIO pin
*
* Returned Value:
* The boolean state of the input pin
*
****************************************************************************/
bool lpc43_gpioread(uint16_t gpiocfg)
{
#warning "Missing logic"
return false;
}

18
arch/arm/src/lpc43xx/lpc43_gpio.h
View File

@ -249,11 +249,11 @@ EXTERN const uint32_t g_gpiobase[NUM_GPIO_PORTS];
* Returned Value:
* OK on success; A negated errno value on failure.
*
************************************************************************************/
********************************************************************************************/
EXTERN int lpc43_gpioconfig(uint16_t gpiocfg);
/************************************************************************************
/********************************************************************************************
* Name: lpc43_gpiowrite
*
* Description:
@ -262,11 +262,11 @@ EXTERN int lpc43_gpioconfig(uint16_t gpiocfg);
* Returned Value:
* None
*
************************************************************************************/
********************************************************************************************/
EXTERN void lpc43_gpiowrite(uint16_t gpiocfg, bool value);
/************************************************************************************
/********************************************************************************************
* Name: lpc43_gpioread
*
* Description:
@ -275,11 +275,11 @@ EXTERN void lpc43_gpiowrite(uint16_t gpiocfg, bool value);
* Returned Value:
* The boolean state of the input pin
*
************************************************************************************/
********************************************************************************************/
EXTERN bool lpc43_gpioread(uint16_t gpiocfg);
/************************************************************************************
/********************************************************************************************
* Name: lpc43_gpioattach
*
* Description:
@ -296,17 +296,17 @@ EXTERN bool lpc43_gpioread(uint16_t gpiocfg);
* for example, be used to restore the previous handler when multiple handlers are
* used.
*
************************************************************************************/
********************************************************************************************/
EXTERN xcpt_t lpc43_gpioattach(uint16_t gpiocfg, xcpt_t func);
/************************************************************************************
/********************************************************************************************
* Function: lpc43_dumpgpio
*
* Description:
* Dump all pin configuration registers associated with the provided base address
*
************************************************************************************/
********************************************************************************************/
#ifdef CONFIG_DEBUG
EXTERN int lpc43_dumpgpio(uint16_t gpiocfg, const char *msg);

2
arch/arm/src/lpc43xx/lpc43_irq.c
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@ -53,6 +53,8 @@
#include "os_internal.h"
#include "up_internal.h"
#include "lpc43_irq.h"
/****************************************************************************
* Definitions
****************************************************************************/

92
arch/arm/src/lpc43xx/lpc43_irq.h Normal file
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@ -0,0 +1,92 @@
/****************************************************************************
* arch/arm/src/lpc43xx/lpc43_irq.h
*
* Copyright (C) 2012 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.
*
****************************************************************************/
#ifndef __ARCH_ARM_SRC_LPC43XX_LPC43_IRQ_H
#define __ARCH_ARM_SRC_LPC43XX_LPC43_IRQ_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: lpc43_clrpend
*
* Description:
* Clear a pending interrupt at the NVIC. This does not seem to be
* required for most interrupts.
*
****************************************************************************/
EXTERN void lpc43_clrpend(int irq);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_IRQ_H */

422
arch/arm/src/lpc43xx/lpc43_lowputc.c Normal file
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@ -0,0 +1,422 @@
/**************************************************************************
* arch/arm/src/lpc43xx/lpc43_lowputc.c
*
* Copyright (C) 2012 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 <stdint.h>
#include <arch/irq.h>
#include <arch/board/board.h>
#include "up_internal.h"
#include "up_arch.h"
#include "chip.h"
#include "lpc43_config.h"
#include "lpc43_pinconfig.h"
#include "chip/lpc43_uart.h"
#include "lpc43_lowputc.h"
/**************************************************************************
* Private Definitions
**************************************************************************/
/* Select UART parameters for the selected console */
#if defined(CONFIG_USART0_SERIAL_CONSOLE)
# define CONSOLE_BASE LPC43_USART0_BASE
# define CONSOLE_BAUD CONFIG_USART0_BAUD
# define CONSOLE_BITS CONFIG_USART0_BITS
# define CONSOLE_PARITY CONFIG_USART0_PARITY
# define CONSOLE_2STOP CONFIG_USART0_2STOP
#elif defined(CONFIG_UART1_SERIAL_CONSOLE)
# define CONSOLE_BASE LPC43_UART1_BASE
# define CONSOLE_BAUD CONFIG_UART1_BAUD
# define CONSOLE_BITS CONFIG_UART1_BITS
# define CONSOLE_PARITY CONFIG_UART1_PARITY
# define CONSOLE_2STOP CONFIG_UART1_2STOP
#elif defined(CONFIG_USART2_SERIAL_CONSOLE)
# define CONSOLE_BASE LPC43_USART2_BASE
# define CONSOLE_BAUD CONFIG_USART2_BAUD
# define CONSOLE_BITS CONFIG_USART2_BITS
# define CONSOLE_PARITY CONFIG_USART2_PARITY
# define CONSOLE_2STOP CONFIG_USART2_2STOP
#elif defined(CONFIG_USART3_SERIAL_CONSOLE)
# define CONSOLE_BASE LPC43_USART3_BASE
# define CONSOLE_BAUD CONFIG_USART3_BAUD
# define CONSOLE_BITS CONFIG_USART3_BITS
# define CONSOLE_PARITY CONFIG_USART3_PARITY
# define CONSOLE_2STOP CONFIG_USART3_2STOP
#elif defined(HAVE_CONSOLE)
# error "No CONFIG_UARTn_SERIAL_CONSOLE Setting"
#endif
/* Get word length setting for the console */
#if CONSOLE_BITS == 5
# define CONSOLE_LCR_WLS UART_LCR_WLS_5BIT
#elif CONSOLE_BITS == 6
# define CONSOLE_LCR_WLS UART_LCR_WLS_6BIT
#elif CONSOLE_BITS == 7
# define CONSOLE_LCR_WLS UART_LCR_WLS_7BIT
#elif CONSOLE_BITS == 8
# define CONSOLE_LCR_WLS UART_LCR_WLS_8BIT
#elif defined(HAVE_CONSOLE)
# error "Invalid CONFIG_UARTn_BITS setting for console "
#endif
/* Get parity setting for the console */
#if CONSOLE_PARITY == 0
# define CONSOLE_LCR_PAR 0
#elif CONSOLE_PARITY == 1
# define CONSOLE_LCR_PAR (UART_LCR_PE|UART_LCR_PS_ODD)
#elif CONSOLE_PARITY == 2
# define CONSOLE_LCR_PAR (UART_LCR_PE|UART_LCR_PS_EVEN)
#elif CONSOLE_PARITY == 3
# define CONSOLE_LCR_PAR (UART_LCR_PE|UART_LCR_PS_STICK1)
#elif CONSOLE_PARITY == 4
# define CONSOLE_LCR_PAR (UART_LCR_PE|UART_LCR_PS_STICK0)
#elif defined(HAVE_CONSOLE)
# error "Invalid CONFIG_UARTn_PARITY setting for CONSOLE"
#endif
/* Get stop-bit setting for the console and USART0/2/3, UART1 */
#if CONSOLE_2STOP != 0
# define CONSOLE_LCR_STOP UART_LCR_STOP
#else
# define CONSOLE_LCR_STOP 0
#endif
/* LCR and FCR values for the console */
#define CONSOLE_LCR_VALUE (CONSOLE_LCR_WLS | CONSOLE_LCR_PAR | CONSOLE_LCR_STOP)
#define CONSOLE_FCR_VALUE (UART_FCR_RXTRIGGER_8 | UART_FCR_TXRST |\
UART_FCR_RXRST | UART_FCR_FIFOEN)
/* We cannot allow the DLM/DLL divisor to become to small or will will lose too
* much accuracy. This following is a "fudge factor" that represents the minimum
* value of the divisor that we will permit.
*/
#define UART_MINDL 32
/* Select a CCLK divider to produce the UART PCLK. The strategy is to select the
* smallest divisor that results in an solution within range of the 16-bit
* DLM and DLL divisor:
*
* BAUD = PCLK / (16 * DL), or
* DL = PCLK / BAUD / 16
*
* Where:
*
* PCLK = CCLK / divisor
*
* Ignoring the fractional divider for now.
*
* Check divisor == 1. This works if the upper limit is met
*
* DL < 0xffff, or
* PCLK / BAUD / 16 < 0xffff, or
* CCLK / BAUD / 16 < 0xffff, or
* CCLK < BAUD * 0xffff * 16
* BAUD > CCLK / 0xffff / 16
*
* And the lower limit is met (we can't allow DL to get very close to one).
*
* DL >= MinDL
* CCLK / BAUD / 16 >= MinDL, or
* BAUD <= CCLK / 16 / MinDL
*/
#if CONSOLE_BAUD < (LPC43_CCLK / 16 / UART_MINDL)
# define CONSOLE_CCLKDIV SYSCON_PCLKSEL_CCLK
# define CONSOLE_NUMERATOR (LPC43_CCLK)
/* Check divisor == 2. This works if:
*
* 2 * CCLK / BAUD / 16 < 0xffff, or
* BAUD > CCLK / 0xffff / 8
*
* And
*
* 2 * CCLK / BAUD / 16 >= MinDL, or
* BAUD <= CCLK / 8 / MinDL
*/
#elif CONSOLE_BAUD < (LPC43_CCLK / 8 / UART_MINDL)
# define CONSOLE_CCLKDIV SYSCON_PCLKSEL_CCLK2
# define CONSOLE_NUMERATOR (LPC43_CCLK / 2)
/* Check divisor == 4. This works if:
*
* 4 * CCLK / BAUD / 16 < 0xffff, or
* BAUD > CCLK / 0xffff / 4
*
* And
*
* 4 * CCLK / BAUD / 16 >= MinDL, or
* BAUD <= CCLK / 4 / MinDL
*/
#elif CONSOLE_BAUD < (LPC43_CCLK / 4 / UART_MINDL)
# define CONSOLE_CCLKDIV SYSCON_PCLKSEL_CCLK4
# define CONSOLE_NUMERATOR (LPC43_CCLK / 4)
/* Check divisor == 8. This works if:
*
* 8 * CCLK / BAUD / 16 < 0xffff, or
* BAUD > CCLK / 0xffff / 2
*
* And
*
* 8 * CCLK / BAUD / 16 >= MinDL, or
* BAUD <= CCLK / 2 / MinDL
*/
#else /* if CONSOLE_BAUD < (LPC43_CCLK / 2 / UART_MINDL) */
# define CONSOLE_CCLKDIV SYSCON_PCLKSEL_CCLK8
# define CONSOLE_NUMERATOR (LPC43_CCLK / 8)
#endif
/* Then this is the value to use for the DLM and DLL registers */
#define CONSOLE_DL (CONSOLE_NUMERATOR / (CONSOLE_BAUD << 4))
/**************************************************************************
* Private Types
**************************************************************************/
/**************************************************************************
* Private Function Prototypes
**************************************************************************/
/**************************************************************************
* Global Variables
**************************************************************************/
/**************************************************************************
* Private Variables
**************************************************************************/
/**************************************************************************
* Private Functions
**************************************************************************/
/**************************************************************************
* Public Functions
**************************************************************************/
/**************************************************************************
* Name: up_lowputc
*
* Description:
* Output one byte on the serial console
*
**************************************************************************/
void up_lowputc(char ch)
{
#if defined HAVE_UART && defined HAVE_CONSOLE
/* Wait for the transmitter to be available */
while ((getreg32(CONSOLE_BASE+LPC43_UART_LSR_OFFSET) & UART_LSR_THRE) == 0);
/* Send the character */
putreg32((uint32_t)ch, CONSOLE_BASE+LPC43_UART_THR_OFFSET);
#endif
}
/**************************************************************************
* Name: lpc43_lowsetup
*
* Description:
* This performs basic initialization of the UART used for the serial
* console. Its purpose is to get the console output availabe as soon
* as possible.
*
* The USART0/2/3 and UART1 peripherals are configured using the following registers:
* 1. Power: In the PCONP register, set bits PCUSART0/1/2/3.
* On reset, USART0 and UART 1 are enabled (PCUSART0 = 1 and PCUART1 = 1)
* and USART2/3 are disabled (PCUART1 = 0 and PCUSART3 = 0).
* 2. Peripheral clock: In the PCLKSEL0 register, select PCLK_USART0 and
* PCLK_UART1; in the PCLKSEL1 register, select PCLK_USART2 and PCLK_USART3.
* 3. Baud rate: In the LCR register, set bit DLAB = 1. This enables access
* to registers DLL and DLM for setting the baud rate. Also, if needed,
* set the fractional baud rate in the fractional divider
* 4. UART FIFO: Use bit FIFO enable (bit 0) in FCR register to
* enable FIFO.
* 5. Pins: Select UART pins through the PINSEL registers and pin modes
* through the PINMODE registers. UART receive pins should not have
* pull-down resistors enabled.
* 6. Interrupts: To enable UART interrupts set bit DLAB = 0 in the LCRF
* register. This enables access to IER. Interrupts are enabled
* in the NVIC using the appropriate Interrupt Set Enable register.
* 7. DMA: UART transmit and receive functions can operate with the
* GPDMA controller.
*
**************************************************************************/
void lpc43_lowsetup(void)
{
#ifdef HAVE_UART
uint32_t regval;
/* Step 1: Enable power for all console UART and disable power for
* other UARTs
*
* USART0/2/3 clocking and power control:
*
* ----------------------------------- -------------- --------------
* BASE CLOCK BRANCH CLOCK
* ----------------------------------- -------------- --------------
* USART0 clock to register interface BASE_M4_CLK CLK_M4_USART0
* USART0 peripheral clock (PCLK) BASE_UART0_CLK CLK_APB0_UART0
* UART1 clock to register interface BASE_M4_CLK CLK_M4_UART1
* UART1 peripheral clock (PCLK) BASE_UART1_CLK CLK_APB0_UART1
* USART2 clock to register interface BASE_M4_CLK CLK_M4_USART2
* USART2 peripheral clock (PCLK) BASE_UART2_CLK CLK_APB2_UART2
* USART3 clock to register interface BASE_M4_CLK CLK_M4_USART3
* USART3 peripheral clock (PCLK) BASE_UART3_CLK CLK_APB2_UART3
* ----------------------------------- -------------- --------------
*/
#warning "Missing logic"
#if 0
regval = getreg32(LPC43_SYSCON_PCONP);
regval &= ~(SYSCON_PCONP_PCUSART0|SYSCON_PCONP_PCUART1|
SYSCON_PCONP_PCUSART2|SYSCON_PCONP_PCUSART3);
#if defined(CONFIG_USART0_SERIAL_CONSOLE)
regval |= SYSCON_PCONP_PCUSART0;
#elif defined(CONFIG_UART1_SERIAL_CONSOLE)
regval |= SYSCON_PCONP_PCUART1;
#elif defined(CONFIG_USART2_SERIAL_CONSOLE)
regval |= SYSCON_PCONP_PCUSART2;
#elif defined(CONFIG_USART3_SERIAL_CONSOLE)
regval |= SYSCON_PCONP_PCUSART3;
#endif
putreg32(regval, LPC43_SYSCON_PCONP);
/* Step 2: Enable peripheral clocking for the console UART and disable
* clocking for all other UARTs
*/
regval = getreg32(LPC43_SYSCON_PCLKSEL0);
regval &= ~(SYSCON_PCLKSEL0_USART0_MASK|SYSCON_PCLKSEL0_UART1_MASK);
#if defined(CONFIG_USART0_SERIAL_CONSOLE)
regval |= (CONSOLE_CCLKDIV << SYSCON_PCLKSEL0_USART0_SHIFT);
#elif defined(CONFIG_UART1_SERIAL_CONSOLE)
regval |= (CONSOLE_CCLKDIV << SYSCON_PCLKSEL0_UART1_SHIFT);
#endif
putreg32(regval, LPC43_SYSCON_PCLKSEL0);
regval = getreg32(LPC43_SYSCON_PCLKSEL1);
regval &= ~(SYSCON_PCLKSEL1_USART2_MASK|SYSCON_PCLKSEL1_USART3_MASK);
#if defined(CONFIG_USART2_SERIAL_CONSOLE)
regval |= (CONSOLE_CCLKDIV << SYSCON_PCLKSEL1_USART2_SHIFT);
#elif defined(CONFIG_USART3_SERIAL_CONSOLE)
regval |= (CONSOLE_CCLKDIV << SYSCON_PCLKSEL1_USART3_SHIFT);
#endif
putreg32(regval, LPC43_SYSCON_PCLKSEL1);
#endif
/* Configure UART pins for the selected CONSOLE. Definitions are
* required in the board.h header file in order to map pins to the
* correct pin and GPIO configuration.
*/
#if defined(CONFIG_USART0_SERIAL_CONSOLE)
lpc43_pinconfig(PINCONF_U0_TXD);
lpc43_pinconfig(PINCONF_U0_RXD);
#elif defined(CONFIG_UART1_SERIAL_CONSOLE)
lpc43_pinconfig(PINCONF_U1_TXD);
lpc43_pinconfig(PINCONF_U1_RXD);
#ifdef CONFIG_UART1_FLOWCONTROL
lpc43_pinconfig(PINCONF_U1_CTS);
lpc43_pinconfig(PINCONF_U1_DCD);
lpc43_pinconfig(PINCONF_U1_DSR);
lpc43_pinconfig(PINCONF_U1_DTR);
lpc43_pinconfig(PINCONF_U1_RI);
lpc43_pinconfig(PINCONF_U1_RTS);
#endif
#elif defined(CONFIG_USART2_SERIAL_CONSOLE)
lpc43_pinconfig(PINCONF_U2_TXD);
lpc43_pinconfig(PINCONF_U2_RXD);
#elif defined(CONFIG_USART3_SERIAL_CONSOLE)
lpc43_pinconfig(PINCONF_U3_TXD);
lpc43_pinconfig(PINCONF_U3_RXD);
#endif
/* Configure the console (only) */
#if defined(HAVE_CONSOLE) && !defined(CONFIG_SUPPRESS_UART_CONFIG)
/* Clear fifos */
putreg32(UART_FCR_RXRST|UART_FCR_TXRST, CONSOLE_BASE+LPC43_UART_FCR_OFFSET);
/* Set trigger */
putreg32(UART_FCR_FIFOEN|UART_FCR_RXTRIGGER_8, CONSOLE_BASE+LPC43_UART_FCR_OFFSET);
/* Set up the LCR and set DLAB=1 */
putreg32(CONSOLE_LCR_VALUE|UART_LCR_DLAB, CONSOLE_BASE+LPC43_UART_LCR_OFFSET);
/* Set the BAUD divisor */
putreg32(CONSOLE_DL >> 8, CONSOLE_BASE+LPC43_UART_DLM_OFFSET);
putreg32(CONSOLE_DL & 0xff, CONSOLE_BASE+LPC43_UART_DLL_OFFSET);
/* Clear DLAB */
putreg32(CONSOLE_LCR_VALUE, CONSOLE_BASE+LPC43_UART_LCR_OFFSET);
/* Configure the FIFOs */
putreg32(UART_FCR_RXTRIGGER_8|UART_FCR_TXRST|UART_FCR_RXRST|UART_FCR_FIFOEN,
CONSOLE_BASE+LPC43_UART_FCR_OFFSET);
#endif
#endif /* HAVE_UART */
}

32
arch/arm/src/lpc43xx/lpc43_lowputc.h
View File

@ -1,4 +1,4 @@
/************************************************************************************
/****************************************************************************
* arch/arm/src/lpc43xx/lpc43_lowputc.h
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
@ -31,28 +31,28 @@
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
****************************************************************************/
#ifndef __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H
#define __ARCH_ARM_SRC_LPC43XX_LOWSETUP_H
/************************************************************************************
/****************************************************************************
* Included Files
************************************************************************************/
****************************************************************************/
#include <nuttx/config.h>
/************************************************************************************
/****************************************************************************
* Pre-processor Definitions
************************************************************************************/
****************************************************************************/
/************************************************************************************
/****************************************************************************
* Public Types
************************************************************************************/
****************************************************************************/
/************************************************************************************
/****************************************************************************
* Public Data
************************************************************************************/
****************************************************************************/
#ifndef __ASSEMBLY__
@ -64,18 +64,18 @@ extern "C" {
#define EXTERN extern
#endif
/************************************************************************************
/****************************************************************************
* Public Functions
************************************************************************************/
****************************************************************************/
/************************************************************************************
/****************************************************************************
* Name: lpc43_lowsetup
*
* Description:
* Called at the very beginning of _start. Performs low level initialization
* of serial console.
* Called at the very beginning of _start. Performs low level
* initialization of the serial console.
*
************************************************************************************/
****************************************************************************/
EXTERN void lpc43_lowsetup(void);

82
arch/arm/src/lpc43xx/lpc43_pinconfig.c Normal file
View File

@ -0,0 +1,82 @@
/****************************************************************************
* arch/arm/src/lpc43/lpc43_pinconfig.c
*
* Copyright (C) 2012 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 <arch/board/board.h>
#include <nuttx/config.h>
#include <nuttx/arch.h>
#include <errno.h>
#include "lpc43_pinconfig.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: lpc43_pinconfig
*
* Description:
* Configure a pin based on bit-encoded description of the pin.
*
* Input Value:
* 20-bit encoded value describing the pin.
*
* Returned Value:
* OK on success; A negated errno value on failure.
*
****************************************************************************/
int lpc43_pinconfig(uint32_t pinconf)
{
#warning "Missing logic"
return -ENOSYS;
}

8
arch/arm/src/lpc43xx/lpc43_pinconfig.h
View File

@ -265,17 +265,17 @@ extern "C" {
* Returned Value:
* OK on success; A negated errno value on failure.
*
************************************************************************************/
********************************************************************************************/
EXTERN int lpc43_pinconfig(uint32_t pinconf);
/************************************************************************************
/********************************************************************************************
* Function: lpc43_dumppinconfig
*
* Description:
* Dump all pin configuration registers associated with the provided base address
* Dump all pin configuration registers associated with the provided pin configuration
*
************************************************************************************/
********************************************************************************************/
#ifdef CONFIG_DEBUG
EXTERN int lpc43_dumppinconfig(uint32_t pinconf, const char *msg);

65
arch/arm/src/lpc43xx/lpc43_serial.h Normal file
View File

@ -0,0 +1,65 @@
/****************************************************************************
* arch/arm/src/lpc43xx/lpc43_serial.h
*
* Copyright (C) 2012 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.
*
****************************************************************************/
#ifndef __ARCH_ARM_SRC_LPC43XX_LPC43_SERIAL_H
#define __ARCH_ARM_SRC_LPC43XX_LPC43_SERIAL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_SERIAL_H */

151
arch/arm/src/lpc43xx/lpc43_timerisr.c Normal file
View File

@ -0,0 +1,151 @@
/****************************************************************************
* arch/arm/src/lpc43xx/lpc43_timerisr.c
*
* Copyright (C) 2012 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 <stdint.h>
#include <time.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <arch/board/board.h>
#include "nvic.h"
#include "clock_internal.h"
#include "up_internal.h"
#include "up_arch.h"
#include "chip.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* The desired timer interrupt frequency is provided by the definition
* CLK_TCK (see include/time.h). CLK_TCK defines the desired number of
* system clock ticks per second. That value is a user configurable setting
* that defaults to 100 (100 ticks per second = 10 MS interval).
*
* The Clock Source: Either the internal CCLK or external STCLK (P3.26) clock
* as the source in the STCTRL register. This file alwyays configures the
* timer to use CCLK as its source.
*/
#define SYSTICK_RELOAD ((LPC43_CCLK / CLK_TCK) - 1)
/* The size of the reload field is 24 bits. Verify that the reload value
* will fit in the reload register.
*/
#if SYSTICK_RELOAD > 0x00ffffff
# error SYSTICK_RELOAD exceeds the range of the RELOAD register
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Global Functions
****************************************************************************/
/****************************************************************************
* Function: up_timerisr
*
* Description:
* The timer ISR will perform a variety of services for various portions
* of the systems.
*
****************************************************************************/
int up_timerisr(int irq, uint32_t *regs)
{
/* Process timer interrupt */
sched_process_timer();
return 0;
}
/****************************************************************************
* Function: up_timerinit
*
* Description:
* This function is called during start-up to initialize
* the timer interrupt.
*
****************************************************************************/
void up_timerinit(void)
{
uint32_t regval;
/* Set the SysTick interrupt to the default priority */
regval = getreg32(NVIC_SYSH12_15_PRIORITY);
regval &= ~NVIC_SYSH_PRIORITY_PR15_MASK;
regval |= (LPC43M4_SYSH_PRIORITY_DEFAULT << NVIC_SYSH_PRIORITY_PR15_SHIFT);
putreg32(regval, NVIC_SYSH12_15_PRIORITY);
/* Make sure that the SYSTICK clock source is set to use the LPC43xx CCLK */
regval = getreg32(NVIC_SYSTICK_CTRL);
regval |= NVIC_SYSTICK_CTRL_CLKSOURCE;
putreg32(regval, NVIC_SYSTICK_CTRL);
/* Configure SysTick to interrupt at the requested rate */
putreg32(SYSTICK_RELOAD, NVIC_SYSTICK_RELOAD);
/* Attach the timer interrupt vector */
(void)irq_attach(LPC43_IRQ_SYSTICK, (xcpt_t)up_timerisr);
/* Enable SysTick interrupts */
putreg32((NVIC_SYSTICK_CTRL_CLKSOURCE|NVIC_SYSTICK_CTRL_TICKINT|
NVIC_SYSTICK_CTRL_ENABLE), NVIC_SYSTICK_CTRL);
/* And enable the timer interrupt */
up_enable_irq(LPC43_IRQ_SYSTICK);
}

18
configs/lpc4330-xplorer/README.txt
View File

@ -12,7 +12,7 @@ Contents
- GNU Toolchain Options
- IDEs
- NuttX buildroot Toolchain
- USB Device Controller Functions
- Serial Console
- FPU
- LPC4330-Xplorer Configuration Options
- USB Host Configuration
@ -234,6 +234,22 @@ NuttX buildroot Toolchain
NOTE: This is an OABI toolchain.
Serial Console
==============
The LPC4330 Xplorer does not have RS-232 drivers or serial connectors on board.
USART0 and UART1 are available on J8 as follows:
------ ------ -----------------------
SIGNAL J8 PIN LPC4330FET100 PIN
(TFBGA100 package)
------ ------ -----------------------
U0_TXD pin 9 F6 P6_4 U0_TXD=Alt 2
U0_RXD pin 10 F9 P6_5 U0_RXD=Alt 2
U1_TXD pin 13 H8 P1_13 U1_TXD=Alt 1
U1_RXD pin 14 J8 P1_14 U1_RXD=Alt 1
------ ------ -----------------------
FPU
===

38
configs/lpc4330-xplorer/include/board.h
View File

@ -170,26 +170,30 @@
#define LED_ASSERTION 2 /* NC ON NC OFF */
#define LED_PANIC 2 /* NC ON NC OFF */
/* After the system is booted, this logic will no longer use LEDs 1 & 2.
* They are available for use the application software using lpc43_led
* (prototyped below)
/* UART Pins ****************************************************************/
/* The LPC4330 Xplorer does not have RS-232 drivers or serial connectors on
* board. USART0 and UART1 are available on J8 as follows:
*
* ------ ------ -----------------------
* SIGNAL J8 PIN LPC4330FET100 PIN
* (TFBGA100 package)
* ------ ------ -----------------------
* U0_TXD pin 9 F6 P6_4 U0_TXD=Alt 2
* U0_RXD pin 10 F9 P6_5 U0_RXD=Alt 2
* U1_TXD pin 13 H8 P1_13 U1_TXD=Alt 1
* U1_RXD pin 14 J8 P1_14 U1_RXD=Alt 1
* ------ ------ -----------------------
*
* The following definitions must be provided so that the LPC43 serial
* driver can set up the U[S]ART for the serial console properly (see the
* file arch/arc/src/lpc43xx/lpc4310203050_pinconf.h for more info).
*/
#define GPIO_SSP0_SCK GPIO_SSP0_SCK_1
#define GPIO_SSP0_SSEL GPIO_SSP0_SSEL_1
#define GPIO_SSP0_MISO GPIO_SSP0_MISO_1
#define GPIO_SSP0_MOSI GPIO_SSP0_MOSI_1
#define PINCONF_U0_TXD PINCONF_U0_TXD_3
#define PINCONF_U0_RXD PINCONF_U0_RXD_3
/* We need to redefine USB_PWRD as GPIO to get USB Host working
* Also remember to add 2 resistors of 15K to D+ and D- pins.
*/
#ifdef CONFIG_USBHOST
# ifdef GPIO_USB_PWRD
# undef GPIO_USB_PWRD
# define GPIO_USB_PWRD (GPIO_INPUT | GPIO_PORT1 | GPIO_PIN22)
# endif
#endif
#define PINCONF_U1_TXD PINCONF_U1_TXD_1
#define PINCONF_U1_RXD PINCONF_U1_RXD_1
/****************************************************************************
* Public Types

5
configs/lpc4330-xplorer/ostest/defconfig
View File

@ -82,8 +82,8 @@ CONFIG_ARCH_CHIP_LPC4330FET100=y
CONFIG_ARCH_BOARD=lpc4330-xplorer
CONFIG_ARCH_BOARD_LPC4330_XPLORER=y
CONFIG_BOARD_LOOPSPERMSEC=7982
CONFIG_DRAM_SIZE=(128*1024)
CONFIG_DRAM_START=0x10000000
CONFIG_DRAM_SIZE=(72*1024)
CONFIG_DRAM_START=0x10080000
CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
CONFIG_ARCH_IRQPRIO=y
CONFIG_ARCH_FPU=n
@ -94,6 +94,7 @@ CONFIG_ARCH_LEDS=y
CONFIG_ARCH_BUTTONS=n
CONFIG_ARCH_CALIBRATION=n
CONFIG_ARCH_DMA=n
CONFIG_ARMV7M_CMNVECTOR=y
#
# Identify toolchain and linker options

16
configs/lpc4330-xplorer/src/xplorer_internal.h
View File

@ -85,6 +85,22 @@
#define LPC4330_XPLORER_BUT1_IRQ LPC43_IRQ_P0p23
#define GPIO_SSP0_SCK GPIO_SSP0_SCK_1
#define GPIO_SSP0_SSEL GPIO_SSP0_SSEL_1
#define GPIO_SSP0_MISO GPIO_SSP0_MISO_1
#define GPIO_SSP0_MOSI GPIO_SSP0_MOSI_1
/* We need to redefine USB_PWRD as GPIO to get USB Host working
* Also remember to add 2 resistors of 15K to D+ and D- pins.
*/
#ifdef CONFIG_USBHOST
# ifdef GPIO_USB_PWRD
# undef GPIO_USB_PWRD
# define GPIO_USB_PWRD (GPIO_INPUT | GPIO_PORT1 | GPIO_PIN22)
# endif
#endif
/****************************************************************************
* Public Types
****************************************************************************/