diff options
Diffstat (limited to 'os/hal/platforms/STM32/hal_lld.c')
-rw-r--r-- | os/hal/platforms/STM32/hal_lld.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/os/hal/platforms/STM32/hal_lld.c b/os/hal/platforms/STM32/hal_lld.c deleted file mode 100644 index 081499b83..000000000 --- a/os/hal/platforms/STM32/hal_lld.c +++ /dev/null @@ -1,221 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011 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 <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file STM32/hal_lld.c
- * @brief STM32 HAL subsystem low level driver source.
- *
- * @addtogroup HAL
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-
-#define AIRCR_VECTKEY 0x05FA0000
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level HAL driver initialization.
- *
- * @notapi
- */
-void hal_lld_init(void) {
-
- /* Reset of all peripherals.*/
- RCC->APB1RSTR = 0xFFFFFFFF;
- RCC->APB2RSTR = 0xFFFFFFFF;
- RCC->APB1RSTR = 0;
- RCC->APB2RSTR = 0;
-
- /* SysTick initialization using the system clock.*/
- SysTick->LOAD = STM32_HCLK / CH_FREQUENCY - 1;
- SysTick->VAL = 0;
- SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
- SysTick_CTRL_ENABLE_Msk |
- SysTick_CTRL_TICKINT_Msk;
-
-#if defined(STM32_DMA_REQUIRED)
- dmaInit();
-#endif
-}
-
-/**
- * @brief STM32 clocks and PLL initialization.
- * @note All the involved constants come from the file @p board.h.
- * @note This function should be invoked just after the system reset.
- *
- * @special
- */
-#if defined(STM32F10X_LD) || defined(STM32F10X_LD_VL) || \
- defined(STM32F10X_MD) || defined(STM32F10X_MD_VL) || \
- defined(STM32F10X_HD) || defined(STM32F10X_XL) || \
- defined(__DOXYGEN__)
-/*
- * Clocks initialization for the LD, MD and HD sub-families.
- */
-void stm32_clock_init(void) {
-
- /* HSI setup, it enforces the reset situation in order to handle possible
- problems with JTAG probes and re-initializations.*/
- RCC->CR |= RCC_CR_HSION; /* Make sure HSI is ON. */
- while (!(RCC->CR & RCC_CR_HSIRDY))
- ; /* Wait until HSI is stable. */
- RCC->CR &= RCC_CR_HSITRIM | RCC_CR_HSION; /* CR Reset value. */
- RCC->CFGR = 0; /* CFGR reset value. */
- while ((RCC->CFGR & RCC_CFGR_SWS) != RCC_CFGR_SWS_HSI)
- ; /* Wait until HSI is the source.*/
-
- /* HSE setup, it is only performed if the HSE clock is selected as source
- of the system clock (directly or through the PLL).*/
-#if (STM32_SW == STM32_SW_HSE) || \
- ((STM32_SW == STM32_SW_PLL) && (STM32_PLLSRC == STM32_PLLSRC_HSE))
- RCC->CR |= RCC_CR_HSEON;
- while (!(RCC->CR & RCC_CR_HSERDY))
- ; /* Waits until HSE is stable. */
-#endif
-
- /* PLL setup, it is only performed if the PLL is the selected source of
- the system clock else it is left disabled.*/
-#if STM32_SW == STM32_SW_PLL
- RCC->CFGR |= STM32_PLLMUL | STM32_PLLXTPRE | STM32_PLLSRC;
- RCC->CR |= RCC_CR_PLLON;
- while (!(RCC->CR & RCC_CR_PLLRDY))
- ; /* Waits until PLL is stable. */
-#endif
-
- /* Clock settings.*/
-#if STM32_HAS_USB
- RCC->CFGR = STM32_MCO | STM32_USBPRE | STM32_PLLMUL | STM32_PLLXTPRE |
- STM32_PLLSRC | STM32_ADCPRE | STM32_PPRE2 | STM32_PPRE1 |
- STM32_HPRE;
-#else
- RCC->CFGR = STM32_MCO | STM32_PLLMUL | STM32_PLLXTPRE |
- STM32_PLLSRC | STM32_ADCPRE | STM32_PPRE2 | STM32_PPRE1 |
- STM32_HPRE;
-#endif
-
- /* Flash setup and final clock selection. */
- FLASH->ACR = STM32_FLASHBITS; /* Flash wait states depending on clock. */
-
- /* Switching to the configured clock source if it is different from HSI.*/
-#if (STM32_SW != STM32_SW_HSI)
- RCC->CFGR |= STM32_SW; /* Switches on the selected clock source. */
- while ((RCC->CFGR & RCC_CFGR_SWS) != (STM32_SW << 2))
- ;
-#endif
-}
-
-#elif defined(STM32F10X_CL)
-/*
- * Clocks initialization for the CL sub-family.
- */
-void stm32_clock_init(void) {
-
- /* HSI setup.*/
- RCC->CR |= RCC_CR_HSION; /* Make sure HSI is ON. */
- while (!(RCC->CR & RCC_CR_HSIRDY))
- ; /* Wait until HSI is stable. */
- RCC->CFGR = 0;
- RCC->CR &= RCC_CR_HSITRIM | RCC_CR_HSION; /* CR Reset value. */
- while ((RCC->CFGR & RCC_CFGR_SWS) != RCC_CFGR_SWS_HSI)
- ; /* Wait until HSI is the source.*/
-
- /* HSE setup, it is only performed if the current configuration uses
- it somehow.*/
-#if STM32_ACTIVATE_PLL2 || \
- STM32_ACTIVATE_PLL3 || \
- (STM32_SW == STM32_SW_HSE) || \
- ((STM32_PREDIV1SRC == STM32_PREDIV1SRC_HSE) && \
- (STM32_PLLSRC == STM32_PLLSRC_PREDIV1))
- RCC->CR |= RCC_CR_HSEON;
- while (!(RCC->CR & RCC_CR_HSERDY))
- ; /* Waits until HSE is stable. */
-#endif
-
- /* Settings of various dividers and multipliers in CFGR2.*/
- RCC->CFGR2 = STM32_PLL3MUL | STM32_PLL2MUL | STM32_PREDIV2 |
- STM32_PREDIV1 | STM32_PREDIV1SRC;
-
- /* PLL2 setup, if activated.*/
-#if STM32_ACTIVATE_PLL2
- RCC->CR |= RCC_CR_PLL2ON;
- while (!(RCC->CR & RCC_CR_PLL2RDY))
- ; /* Waits until PLL2 is stable. */
-#endif
-
- /* PLL3 setup, if activated.*/
-#if STM32_ACTIVATE_PLL3
- RCC->CR |= RCC_CR_PLL3ON;
- while (!(RCC->CR & RCC_CR_PLL3RDY))
- ; /* Waits until PLL3 is stable. */
-#endif
-
- /* PLL1 setup, if activated.*/
-#if STM32_ACTIVATE_PLL1
- RCC->CFGR |= STM32_PLLMUL | STM32_PLLSRC;
- RCC->CR |= RCC_CR_PLLON;
- while (!(RCC->CR & RCC_CR_PLLRDY))
- ; /* Waits until PLL1 is stable. */
-#endif
-
- /* Clock settings.*/
-#if STM32_HAS_OTG1
- RCC->CFGR = STM32_MCO | STM32_OTGFSPRE | STM32_PLLMUL | STM32_PLLSRC |
- STM32_ADCPRE | STM32_PPRE2 | STM32_PPRE1 | STM32_HPRE;
-#else
- RCC->CFGR = STM32_MCO | STM32_PLLMUL | STM32_PLLSRC |
- STM32_ADCPRE | STM32_PPRE2 | STM32_PPRE1 | STM32_HPRE;
-#endif
-
- /* Flash setup and final clock selection. */
- FLASH->ACR = STM32_FLASHBITS; /* Flash wait states depending on clock. */
-
- /* Switching to the configured clock source if it is different from HSI.*/
-#if (STM32_SW != STM32_SW_HSI)
- RCC->CFGR |= STM32_SW; /* Switches on the selected clock source. */
- while ((RCC->CFGR & RCC_CFGR_SWS) != (STM32_SW << 2))
- ;
-#endif
-}
-#else
-void stm32_clock_init(void) {}
-#endif
-
-/** @} */
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