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Finish PWM pulse count configuration 

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4287 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-01-09 21:34:58 +00:00
parent dada7a5200
commit 76e382e073
5 changed files with 101 additions and 58 deletions
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11
configs/stm3240g-eval/README.txt
View File

@ -596,10 +596,19 @@ Where <subdir> is one of the following:
CONFIG_PWM=y : Enable the generic PWM infrastructure
CONFIG_PWM_PULSECOUNT=n : Disable to support TIM1/8 pulse counts
CONFIG_STM32_TIM4=y : Enable TIM4
CONFIG_STM32_TIM4_PWM=y : Use TIM4 to generate PWM output
CONFIG_STM32_TIM4_CHANNEL=2
See also apps/examples/README.txt
Or..
CONFIG_PWM=y : Enable the generic PWM infrastructure
CONFIG_PWM_PULSECOUNT=y : Enable to support TIM1/8 pulse counts
CONFIG_STM32_TIM1=y : Enable TIM1
CONFIG_STM32_TIM1_PWM=y : Use TIM1 to generate PWM output
CONFIG_STM32_TIM1_CHANNEL=1
See also include/board.h and apps/examples/README.txt
Special PWM-only debug options:

81
configs/stm3240g-eval/include/board.h
View File

@ -2,7 +2,7 @@
* configs/stm3240g-eval/include/board.h
* include/arch/board/board.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2011-12 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -307,20 +307,79 @@
/* PWM
*
* The STM3240G-Eval has no real on-board PWM devices, but the board can be
* configured to output a pulse train using TIM4 CH2. This pin is used by FSMC is
* but is also connected to the Motor Control Connector (CN5) just for this
* purpose:
* configured to output a pulse train using the following:
*
* PD13 FSMC_A18 / MC_TIM4_CH2OUT pin 33 (EnB)
*
* FSMC must be disabled in this case! PD13 is available at:
*
* Daughterboard Extension Connector, CN3, pin 32 - available
* TFT LCD Connector, CN19, pin 17 -- not available without removing the LCD.
* If FSMC is not used:
* TIM4 CH2OUT: PD13 FSMC_A18 / MC_TIM4_CH2OUT
* Daughterboard Extension Connector, CN3, pin 32
* Motor Control Connector CN15, pin 33 -- not available unless you bridge SB14.
*
* TIM1 CH1OUT: PE9 FSMC_D6
* Daughterboard Extension Connector, CN2, pin 24
*
* TIM1_CH2OUT: PE11 FSMC_D8
* Daughterboard Extension Connector, CN2, pin 26
*
* TIM1_CH3OUT: PE13 FSMC_D10
* Daughterboard Extension Connector, CN2, pin 28
*
* TIM1_CH4OUT: PE14 FSMC_D11
* Daughterboard Extension Connector, CN2, pin 29
*
* If OTG FS is not used
*
* TIM1_CH3OUT: PA10 OTG_FS_ID
* Daughterboard Extension Connector, CN3, pin 14
*
* TIM1_CH4OUT: PA11 OTG_FS_DM
* Daughterboard Extension Connector, CN3, pin 11
*
* If DMCI is not used
*
* TIM8 CH1OUT: PI5 DCMI_VSYNC & MC
* Daughterboard Extension Connector, CN4, pin 4
*
* TIM8_CH2OUT: PI6 DCMI_D6 & MC
* Daughterboard Extension Connector, CN4, pin 3
*
* TIM8_CH3OUT: PI7 DCMI_D7 & MC
* Daughterboard Extension Connector, CN4, pin 2
*
* If SDIO is not used
*
* TIM8_CH3OUT: PC8 MicroSDCard_D0 & MC
* Daughterboard Extension Connector, CN3, pin 18
*
* TIM8_CH4OUT: PC9 MicroSDCard_D1 & I2S_CKIN (JP16)
* Daughterboard Extension Connector, CN3, pin 15
*
* Others
*
* TIM8 CH1OUT: PC6 I2S_MCK & Smartcard_IO (JP21 open)
*/
#define GPIO_TIM4_CH2OUT GPIO_TIM4_CH2OUT_2
#if !defined(CONFIG_STM32_FSMC)
# define GPIO_TIM4_CH2OUT GPIO_TIM4_CH2OUT_2
# define GPIO_TIM1_CH1OUT GPIO_TIM1_CH1OUT_2
# define GPIO_TIM1_CH2OUT GPIO_TIM1_CH2OUT_2
# define GPIO_TIM1_CH3OUT GPIO_TIM1_CH3OUT_2
# define GPIO_TIM1_CH4OUT GPIO_TIM1_CH4OUT_2
#elif !defined(CONFIG_STM32_OTGFS)
# define GPIO_TIM1_CH3OUT GPIO_TIM1_CH3OUT_1
# define GPIO_TIM1_CH4OUT GPIO_TIM1_CH4OUT_1
#endif
#if !defined(CONFIG_STM32_DCMI)
# define GPIO_TIM8_CH1OUT GPIO_TIM8_CH1OUT_2
# define GPIO_TIM8_CH2OUT GPIO_TIM8_CH2OUT_2
# define GPIO_TIM8_CH3OUT GPIO_TIM8_CH3OUT_2
#else
# define GPIO_TIM8_CH1OUT GPIO_TIM8_CH1OUT_1
# if !defined(CONFIG_STM32_SDIO)
# define GPIO_TIM8_CH3OUT GPIO_TIM8_CH3OUT_1
# define GPIO_TIM8_CH4OUT GPIO_TIM8_CH4OUT_1
# endif
#endif
/* CAN
*

11
configs/stm3240g-eval/nsh/defconfig
View File

@ -349,14 +349,13 @@ CONFIG_STM32_ADC3_SAMPLE_FREQUENCY=100
# PWM configuration
#
# The STM3240G-Eval has no real on-board PWM devices, but the board can be configured to output
# a pulse train using TIM4 CH2. This pin is used by FSMC is connect to CN5 just for this
# purpose.
# a pulse train using several options (see board.h). Here the default setup is for TIM1, CH1.
# Don't forget to enable CONFIG_STM32_TIM1
#
CONFIG_PWM=n
CONFIG_PWM_PULSECOUNT=n
CONFIG_STM32_TIM4=y
CONFIG_STM32_TIM4_PWM=y
CONFIG_STM32_TIM4_CHANNEL=2
CONFIG_PWM_PULSECOUNT=y
CONFIG_STM32_TIM1_PWM=y
CONFIG_STM32_TIM1_CHANNEL=1
#
# General build options

24
configs/stm3240g-eval/src/stm3240g-internal.h
View File

@ -113,21 +113,19 @@
/* PWM
*
* The STM3240G-Eval has no real on-board PWM devices, but the board can be
* configured to output a pulse train using TIM4 CH2. This pin is used by FSMC is
* but is also connected to the Motor Control Connector (CN5) just for this
* purpose:
*
* PD13 FSMC_A18 / MC_TIM4_CH2OUT pin 33 (EnB)
*
* FSMC must be disabled in this case! PD13 is available at:
*
* Daughterboard Extension Connector, CN3, pin 32 - available
* TFT LCD Connector, CN19, pin 17 -- not available without removing the LCD.
* Motor Control Connector CN15, pin 33 -- not available unless you bridge SB14.
* configured to output a pulse train using TIM4, TIM1, or TIM8 (see board.h).
* Let's figure out which the user has configured.
*/
#define STM3240G_EVAL_PWMTIMER 4
#define STM3240G_EVAL_PWMCHANNEL 2
#ifdef CONFIG_PWM
# if defined(CONFIG_STM32_TIM1_PWM)
# define STM3240G_EVAL_PWMTIMER 1
# elif defined(CONFIG_STM32_TIM4_PWM)
# define STM3240G_EVAL_PWMTIMER 4
# elif defined(CONFIG_STM32_TIM8_PWM)
# define STM3240G_EVAL_PWMTIMER 8
# endif
#endif
/****************************************************************************************************
* Public Types

32
configs/stm3240g-eval/src/up_pwm.c
View File

@ -57,34 +57,12 @@
/* Configuration *******************************************************************/
/* PWM
*
* The STM3240G-Eval has no real on-board PWM devices, but the board can be configured to output
* a pulse train using TIM4 CH2. This pin is used by FSMC is connect to CN5 just for this
* purpose:
*
* PD13 FSMC_A18 / MC_TIM4_CH2OUT pin 33 (EnB)
*
* FSMC must be disabled in this case!
* The STM3240G-Eval has no real on-board PWM devices, but the board can be
* configured to output a pulse train using variously unused pins on the board for
* PWM output (see board.h for details of pins).
*/
#define HAVE_PWM 1
#ifndef CONFIG_PWM
# undef HAVE_PWM
#endif
#ifndef CONFIG_STM32_TIM4
# undef HAVE_PWM
#endif
#ifndef CONFIG_STM32_TIM4_PWM
# undef HAVE_PWM
#endif
#if CONFIG_STM32_TIM4_CHANNEL != STM3240G_EVAL_PWMCHANNEL
# undef HAVE_PWM
#endif
#ifdef HAVE_PWM
#ifdef CONFIG_PWM
/************************************************************************************
* Private Functions
@ -139,4 +117,4 @@ int pwm_devinit(void)
return OK;
}
#endif /* HAVE_PWM */
#endif /* CONFIG_PWM */