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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2014-05-07 08:11:03 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2014-05-07 08:11:03 +0000
commitbec915e05274a94f2b1a5e2443f04de826dd1f6e (patch)
treecec2044911766f5dc5a7bd8b8c9ffe0fe81734f8 /boards/RAISONANCE_REVA_STM8S/board.c
parent4afa0b98dff9eac6a94c104acf900e15147d2da3 (diff)
parentb43c71424d201583822b26d13d11f7e3634cb515 (diff)
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6916 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'boards/RAISONANCE_REVA_STM8S/board.c')
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diff --git a/boards/RAISONANCE_REVA_STM8S/board.c b/boards/RAISONANCE_REVA_STM8S/board.c
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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"
-
-/**
- * @brief PAL setup.
- * @details Digital I/O ports static configuration as defined in @p board.h.
- */
-#if HAL_USE_PAL || defined(__DOXYGEN__)
-ROMCONST PALConfig pal_default_config =
-{
- {
- {VAL_GPIOAODR, 0, VAL_GPIOADDR, VAL_GPIOACR1, VAL_GPIOACR2},
- {VAL_GPIOBODR, 0, VAL_GPIOBDDR, VAL_GPIOBCR1, VAL_GPIOBCR2},
- {VAL_GPIOCODR, 0, VAL_GPIOCDDR, VAL_GPIOCCR1, VAL_GPIOCCR2},
- {VAL_GPIODODR, 0, VAL_GPIODDDR, VAL_GPIODCR1, VAL_GPIODCR2},
- {VAL_GPIOEODR, 0, VAL_GPIOEDDR, VAL_GPIOECR1, VAL_GPIOECR2},
- {VAL_GPIOFODR, 0, VAL_GPIOFDDR, VAL_GPIOFCR1, VAL_GPIOFCR2},
- {VAL_GPIOGODR, 0, VAL_GPIOGDDR, VAL_GPIOGCR1, VAL_GPIOGCR2},
- }
-};
-#endif
-
-/*
- * TIM 2 clock after the prescaler.
- */
-#define TIM2_CLOCK (SYSCLK / 16)
-#define TIM2_ARR ((TIM2_CLOCK / CH_FREQUENCY) - 1)
-
-/*
- * TIM2 interrupt handler.
- */
-CH_IRQ_HANDLER(13) {
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- chSysTimerHandlerI();
- chSysUnlockFromIsr();
-
- TIM2->SR1 = 0;
-
- CH_IRQ_EPILOGUE();
-}
-
-/*
- * Board-specific initialization code.
- */
-void boardInit(void) {
-
- /*
- * TIM2 initialization as system tick.
- */
- CLK->PCKENR1 |= CLK_PCKENR1_TIM2;
- TIM2->PSCR = 4; /* Prescaler divide by 2^4=16.*/
- TIM2->ARRH = (uint8_t)(TIM2_ARR >> 8);
- TIM2->ARRL = (uint8_t)(TIM2_ARR);
- TIM2->CNTRH = 0;
- TIM2->CNTRL = 0;
- TIM2->SR1 = 0;
- TIM2->IER = TIM2_IER_UIE;
- TIM2->CR1 = TIM2_CR1_CEN;
-}