From 0a6e70cc8618a06137d29a537495b82e4acc65cc Mon Sep 17 00:00:00 2001 From: gdisirio Date: Thu, 21 Jun 2012 17:45:22 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4321 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32F0xx/PWM-ICU/main.c | 142 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 testhal/STM32F0xx/PWM-ICU/main.c (limited to 'testhal/STM32F0xx/PWM-ICU/main.c') diff --git a/testhal/STM32F0xx/PWM-ICU/main.c b/testhal/STM32F0xx/PWM-ICU/main.c new file mode 100644 index 000000000..8d771299a --- /dev/null +++ b/testhal/STM32F0xx/PWM-ICU/main.c @@ -0,0 +1,142 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, + 2011,2012 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +#include "ch.h" +#include "hal.h" + +static void pwmpcb(PWMDriver *pwmp) { + + (void)pwmp; + palClearPad(GPIOC, GPIOC_LED4); +} + +static void pwmc1cb(PWMDriver *pwmp) { + + (void)pwmp; + palSetPad(GPIOC, GPIOC_LED4); +} + +static PWMConfig pwmcfg = { + 10000, /* 10kHz PWM clock frequency. */ + 10000, /* Initial PWM period 1S. */ + pwmpcb, + { + {PWM_OUTPUT_ACTIVE_HIGH, pwmc1cb}, + {PWM_OUTPUT_DISABLED, NULL}, + {PWM_OUTPUT_DISABLED, NULL}, + {PWM_OUTPUT_DISABLED, NULL} + }, + 0, +}; + +icucnt_t last_width, last_period; + +static void icuwidthcb(ICUDriver *icup) { + + palSetPad(GPIOC, GPIOC_LED3); + last_width = icuGetWidth(icup); +} + +static void icuperiodcb(ICUDriver *icup) { + + palClearPad(GPIOC, GPIOC_LED3); + last_period = icuGetPeriod(icup); +} + +static ICUConfig icucfg = { + ICU_INPUT_ACTIVE_HIGH, + 10000, /* 10kHz ICU clock frequency. */ + icuwidthcb, + icuperiodcb, + NULL, + ICU_CHANNEL_1 +}; + +/* + * 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(); + + /* + * Initializes the PWM driver 2 and ICU driver 3. + * GPIOA15 is the PWM output. + * GPIOC6 is the ICU input. + * The two pins have to be externally connected together. + */ + pwmStart(&PWMD2, &pwmcfg); + palSetPadMode(GPIOA, 15, PAL_MODE_ALTERNATE(1)); + icuStart(&ICUD3, &icucfg); + palSetPadMode(GPIOC, 6, PAL_MODE_ALTERNATE(2)); + icuEnable(&ICUD3); + chThdSleepMilliseconds(2000); + + /* + * Starts the PWM channel 0 using 75% duty cycle. + */ + pwmEnableChannel(&PWMD2, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD2, 7500)); + chThdSleepMilliseconds(5000); + + /* + * Changes the PWM channel 0 to 50% duty cycle. + */ + pwmEnableChannel(&PWMD2, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD2, 5000)); + chThdSleepMilliseconds(5000); + + /* + * Changes the PWM channel 0 to 25% duty cycle. + */ + pwmEnableChannel(&PWMD2, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD2, 2500)); + chThdSleepMilliseconds(5000); + + /* + * Changes PWM period to half second the duty cycle becomes 50% + * implicitly. + */ + pwmChangePeriod(&PWMD2, 5000); + chThdSleepMilliseconds(5000); + + /* + * Disables channel 0 and stops the drivers. + */ + pwmDisableChannel(&PWMD2, 0); + pwmStop(&PWMD2); + icuDisable(&ICUD3); + icuStop(&ICUD3); + palClearPad(GPIOC, GPIOC_LED3); + palClearPad(GPIOC, GPIOC_LED4); + + /* + * Normal main() thread activity, in this demo it does nothing. + */ + while (TRUE) { + chThdSleepMilliseconds(500); + } + return 0; +} -- cgit v1.2.3 From fdc0555892c21c6aa6b582c468dfa31d05005273 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Sat, 23 Jun 2012 15:21:44 +0000 Subject: PWM and ICU working on the STM32F0. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4329 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32F0xx/PWM-ICU/main.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'testhal/STM32F0xx/PWM-ICU/main.c') diff --git a/testhal/STM32F0xx/PWM-ICU/main.c b/testhal/STM32F0xx/PWM-ICU/main.c index 8d771299a..2cabd2844 100644 --- a/testhal/STM32F0xx/PWM-ICU/main.c +++ b/testhal/STM32F0xx/PWM-ICU/main.c @@ -60,12 +60,17 @@ static void icuperiodcb(ICUDriver *icup) { last_period = icuGetPeriod(icup); } +static void icuoverflowcb(ICUDriver *icup) { + + (void)icup; +} + static ICUConfig icucfg = { ICU_INPUT_ACTIVE_HIGH, 10000, /* 10kHz ICU clock frequency. */ icuwidthcb, icuperiodcb, - NULL, + icuoverflowcb, ICU_CHANNEL_1 }; @@ -86,14 +91,14 @@ int main(void) { /* * Initializes the PWM driver 2 and ICU driver 3. - * GPIOA15 is the PWM output. - * GPIOC6 is the ICU input. + * GPIOA6 is the ICU input (CH1). + * GPIOA15 is the PWM output (CH1). * The two pins have to be externally connected together. */ pwmStart(&PWMD2, &pwmcfg); - palSetPadMode(GPIOA, 15, PAL_MODE_ALTERNATE(1)); + palSetPadMode(GPIOA, 15, PAL_MODE_ALTERNATE(2)); icuStart(&ICUD3, &icucfg); - palSetPadMode(GPIOC, 6, PAL_MODE_ALTERNATE(2)); + palSetPadMode(GPIOA, 6, PAL_MODE_ALTERNATE(1)); icuEnable(&ICUD3); chThdSleepMilliseconds(2000); -- cgit v1.2.3 From 184a71345c6a36a9a8664eda8fbcc3ea728267a8 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Sat, 2 Feb 2013 10:58:09 +0000 Subject: Updated license years. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5102 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32F0xx/PWM-ICU/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'testhal/STM32F0xx/PWM-ICU/main.c') diff --git a/testhal/STM32F0xx/PWM-ICU/main.c b/testhal/STM32F0xx/PWM-ICU/main.c index 2cabd2844..e4a09fcd1 100644 --- a/testhal/STM32F0xx/PWM-ICU/main.c +++ b/testhal/STM32F0xx/PWM-ICU/main.c @@ -1,6 +1,6 @@ /* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, - 2011,2012 Giovanni Di Sirio. + 2011,2012,2013 Giovanni Di Sirio. This file is part of ChibiOS/RT. -- cgit v1.2.3 From 853216256ad4cdacf5f94edb7d6b738c6be165a1 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Sat, 30 Mar 2013 10:32:37 +0000 Subject: Relicensing parts of the tree under the Apache 2.0 license. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5521 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32F0xx/PWM-ICU/main.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-) (limited to 'testhal/STM32F0xx/PWM-ICU/main.c') diff --git a/testhal/STM32F0xx/PWM-ICU/main.c b/testhal/STM32F0xx/PWM-ICU/main.c index e4a09fcd1..de6191c01 100644 --- a/testhal/STM32F0xx/PWM-ICU/main.c +++ b/testhal/STM32F0xx/PWM-ICU/main.c @@ -1,21 +1,17 @@ /* - ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, - 2011,2012,2013 Giovanni Di Sirio. + ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio - This file is part of ChibiOS/RT. + 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 - ChibiOS/RT is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. + http://www.apache.org/licenses/LICENSE-2.0 - ChibiOS/RT is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . + 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" -- cgit v1.2.3